\u56e0\u4e3a\u5728\u5e74\u672b\u5e74\u521d\u5b66\u4e60\u4e86 Go \u8bed\u8a00\uff0c\u6240\u4ee5\u5c1d\u8bd5\u7740\u5b9e\u73b0\u4e86 GraphQL \u548c gRPC \u7684\u793a\u4f8b\u9879\u76ee\u3002<\/p>\n
<\/p>\n
\u8bf7\u5c06\u4ee5\u4e0b\u5185\u5bb9\u7528\u4e2d\u6587\u8fdb\u884c\u540c\u4e49\u8f6c\u8ff0\uff0c\u53ea\u9700\u8981\u4e00\u4e2a\u9009\u9879\uff1a”China’s economy has experienced rapid growth in recent years.”<\/p>\n<p><\/iframe><\/p>\n<h2>\u57fa\u7840\u77e5\u8bc6<\/h2>\n<h3>GraphQL -> \u56fe\u5f62\u67e5\u8be2\u8bed\u8a00<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u72ec\u81ea\u306e\u30af\u30a8\u30ea\u8a00\u8a9e\u3092\u7528\u3044\u3066\u3001\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3067\u5fc5\u8981\u306a\u30ea\u30bd\u30fc\u30b9\u30fb\u30d7\u30ed\u30d1\u30c6\u30a3\u3060\u3051\u3092\u67d4\u8edf\u306b\u53d6\u5f97\u3067\u304d\u308b<\/ul>\n<\/li>\n<\/ul>\n<p> <\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b9\u30ad\u30fc\u30de\u5b9a\u7fa9\u3092\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3068\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3067\u5171\u6709\u3067\u304d\u308b\u306e\u3067\u5909\u66f4\u306b\u3082\u5f37\u3044<\/ul>\n<\/li>\n<\/ul>\n<p> <\/p>\n<ul class=\"post-ul\">https:\/\/graphql.org<\/ul>\n<h3>gRPC\u8c37\u6b4c\u7684\u8fdc\u7a0b\u8fc7\u7a0b\u8c03\u7528\u7cfb\u7edf<\/h3>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u72ec\u81ea\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u7528\u3044\u3066\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u9ad8\u901f\u306a\u901a\u4fe1\u3092\u5b9f\u73fe\u3067\u304d\u308b<\/ul>\n<\/li>\n<\/ul>\n<p> <\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u540c\u3058\u30e9\u30f3\u30bf\u30a4\u30e0\u5185\u306e\u95a2\u6570\u3092\u547c\u3076\u611f\u899a\u3067\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u306e\u51e6\u7406\u3092\u547c\u3076\u3053\u3068\u304c\u3067\u304d\u3001\u69d8\u3005\u306a\u8a00\u8a9e\u30fb\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067\u5b9f\u88c5\u3055\u308c\u305f\u30b5\u30fc\u30d3\u30b9\u3092\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u63a5\u7d9a\u3067\u304d\u308b<\/ul>\n<\/li>\n<\/ul>\n<p> <\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b9\u30ad\u30fc\u30de\u5b9a\u7fa9\u3092\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3067\u5171\u6709\u3067\u304d\u308b\u306e\u3067\u5909\u66f4\u306b\u3082\u5f37\u3044<\/ul>\n<\/li>\n<\/ul>\n<p> <\/p>\n<ul class=\"post-ul\">https:\/\/grpc.io<\/ul>\n<h2>\u73af\u5883<\/h2>\n<ul class=\"post-ul\">Go 1.19.3<\/ul>\n<h2>\u69cb\u5efaGraphQL\u5f00\u53d1\u73af\u5883<\/h2>\n<p>\u6309\u7167\u4ee5\u4e0b\u7684\u76ee\u5f55\u7ed3\u6784\u8fdb\u884c\u64cd\u4f5c\u3002<\/p>\n<pre class=\"post-pre\"><code>golang-web-server-sample\/\r\n\u251c\u2500\u2500 docker-compose.yml\r\n\u251c\u2500\u2500 graphql-gateway\/ # \u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u304b\u3089\u76f4\u63a5\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u3051\u53d6\u308b GraphQL \u88fd\u30b5\u30fc\u30d3\u30b9\r\n\u2502\u00a0\u00a0 \u2514\u2500\u2500 Dockerfile\r\n\u251c\u2500\u2500 grpc-user-service\/ # gRPC \u88fd\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30b5\u30fc\u30d3\u30b9\r\n\u2502\u00a0\u00a0 \u2514\u2500\u2500 Dockerfile\r\n\u2514\u2500\u2500 proto\/ # gRPC \u7528\u306e\u30b9\u30ad\u30fc\u30de\u5b9a\u7fa9\uff08protocol buffers\uff09\u304b\u3089\u30b9\u30bf\u30d6\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u30b3\u30f3\u30c6\u30ca\r\n \u2514\u2500\u2500 Dockerfile\r\n<\/code><\/pre>\n<p>\u8fd9\u6b21\u6211\u4eec\u5c06\u4f7f\u7528docker-compose\u6765\u914d\u7f6e\u5f00\u53d1\u73af\u5883\uff0c\u4ee5\u4fbf\u5728\u672c\u5730\u542f\u52a8\u591a\u4e2a\u670d\u52a1\u3002<br \/>\n\u9996\u5148\uff0c\u5efa\u7acb\u4e00\u4e2a\u7528\u4e8e\u6784\u5efagraphql-gateway\u7684\u73af\u5883\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">version<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">3\"<\/span>\r\n<span class=\"na\">services<\/span><span class=\"pi\">:<\/span>\r\n <span class=\"na\">graphql-gateway<\/span><span class=\"pi\">:<\/span>\r\n <span class=\"na\">build<\/span><span class=\"pi\">:<\/span> <span class=\"s\">.\/graphql-gateway<\/span>\r\n <span class=\"na\">volumes<\/span><span class=\"pi\">:<\/span>\r\n <span class=\"pi\">-<\/span> <span class=\"s\">.:\/app<\/span>\r\n <span class=\"na\">ports<\/span><span class=\"pi\">:<\/span>\r\n <span class=\"pi\">-<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">8080:8080\"<\/span>\r\n <span class=\"na\">depends_on<\/span><span class=\"pi\">:<\/span>\r\n <span class=\"pi\">-<\/span> <span class=\"s\">grpc-user-service<\/span>\r\n<\/code><\/pre>\n<p>\u91cd\u70b9\u662f\u628a\u5305\u62ec\u5176\u4ed6\u670d\u52a1\u76ee\u5f55\u4e2d\u7684\u6240\u6709\u6587\u4ef6\u90fd\u6302\u8f7d\u5230 Docker \u5185\u7684\u5de5\u4f5c\u76ee\u5f55 \/app \u4e0b\u3002\u8fd9\u6837\u505a\u662f\u4e3a\u4e86\u5728\u914d\u7f6e gRPC \u65f6\u53ef\u4ee5\u8be6\u7ec6\u8bf4\u660e\uff0c\u4ee5\u4fbf\u4ece\u5404\u4e2a\u670d\u52a1\u4e2d\u901a\u8fc7\u7b26\u53f7\u94fe\u63a5\u5f15\u7528 gRPC \u7684\u6a21\u5f0f\u5b9a\u4e49\uff08\u534f\u8bae\u7f13\u51b2\u533a\uff09\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\u51c6\u5907\u4e3agraphql-gateway\u521b\u5efaDockerfile\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">FROM<\/span><span class=\"s\"> golang:1.19.3<\/span>\r\n\r\n<span class=\"k\">WORKDIR<\/span><span class=\"s\"> \/app\/graphql-gateway<\/span>\r\n\r\n<span class=\"k\">COPY<\/span><span class=\"s\"> go.mod go.sum .\/<\/span>\r\n<span class=\"k\">RUN <\/span>go mod download\r\n\r\n<span class=\"k\">RUN <\/span>go <span class=\"nb\">install <\/span>github.com\/cosmtrek\/air@v1.40.4\r\n<span class=\"k\">RUN <\/span>go <span class=\"nb\">install <\/span>github.com\/99designs\/gqlgen@v0.17.22\r\n<\/code><\/pre>\n<p>\u5728\u6784\u5efa\u65f6\uff0c\u5982\u679c\u6ca1\u6709go.mod\u548cgo.sum\u6587\u4ef6\u4f1a\u5bfc\u81f4\u9519\u8bef\uff0c\u6240\u4ee5\u9700\u8981\u5148\u521b\u5efa\u5b83\u4eec\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">module github.com\/midwhite\/golang-web-server-sample\/graphql-gateway\r\n<\/span>\r\n<span class=\"p\">go 1.19\r\n<\/span><\/code><\/pre>\n<p>\u8bf7\u6839\u636e\u9700\u8981\u5c06\u6a21\u5757\u58f0\u660e\u90e8\u5206\u7684\u4ed3\u5e93\u540d\u79f0\u66f4\u6362\u4e3a\u60a8\u81ea\u5df1\u7684\u4ed3\u5e93\u540d\u79f0\u3002<br \/>\n\u7531\u4e8e go.sum \u6587\u4ef6\u53ef\u4ee5\u4e3a\u7a7a\u6587\u4ef6\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 touch \u547d\u4ee4\u5148\u521b\u5efa\u4e00\u4e2a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span><span class=\"nb\">touch <\/span>graphql-gateway\/go.sum\r\n<\/code><\/pre>\n<p>\u5f53\u6211\u4eec\u5230\u8fbe\u8fd9\u4e00\u6b65\uff0c\u53ef\u4ee5\u4f7f\u7528docker-compose\u6765\u6784\u5efa\u5bb9\u5668\uff0c\u7136\u540e\u6211\u4eec\u5c06\u5728\u5bb9\u5668\u5185\u8fdb\u884c\u5de5\u4f5c\u3002<br \/>\n\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u8fdb\u5165\u5bb9\u5668\u5185\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>docker-compose build\r\n<span class=\"nv\">$ <\/span>docker-compose run <span class=\"nt\">--rm<\/span> graphql-gateway bash\r\n<\/code><\/pre>\n<p>\u7531\u4e8e\u9ed8\u8ba4\u60c5\u51b5\u4e0b Go \u4e0d\u63d0\u4f9b\u5b9e\u65f6\u91cd\u65b0\u52a0\u8f7d\u529f\u80fd\uff0c\u8fd9\u4f7f\u5f97\u7f16\u7801\u53d8\u5f97\u5f88\u4e0d\u65b9\u4fbf\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u5c06\u4f7f\u7528 Air \u6765\u5b9e\u73b0\u5bf9\u4ee3\u7801\u66f4\u6539\u7684\u5373\u65f6\u53cd\u6620\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>air init\r\n\r\n __ _ ___\r\n \/ \/<span class=\"se\">\\ <\/span> | | | |_<span class=\"o\">)<\/span>\r\n\/_\/--<span class=\"se\">\\ <\/span>|_| |_| <span class=\"se\">\\_<\/span> , built with Go\r\n\r\n.air.toml file created to the current directory with the default settings\r\n<\/code><\/pre>\n<p>\u4f7f\u7528 `air init` \u547d\u4ee4\u751f\u6210 air \u7684\u914d\u7f6e\u6587\u4ef6 .air.toml\u3002<br \/>\n\u5c06\u6240\u751f\u6210\u7684\u6587\u4ef6\u4e2d\u7684 cmd \u90e8\u5206\u66ff\u6362\u4e3a\u9884\u5b9a\u5c06\u653e\u7f6e\u6b64\u6b21\u5165\u53e3\u70b9\u7684\u4f4d\u7f6e\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">root = \".\"\r\ntestdata_dir = \"testdata\"\r\ntmp_dir = \"tmp\"\r\n<\/span>\r\n[build]\r\n args_bin = []\r\n bin = \".\/tmp\/main\"\r\n<span class=\"gd\">- cmd = \"go build -o .\/tmp\/main .\"\r\n<\/span><span class=\"gi\">+ cmd = \"go build -o .\/tmp\/main .\/server.go\"\r\n<\/span> delay = 1000\r\n exclude_dir = [\"assets\", \"tmp\", \"vendor\", \"testdata\"]\r\n exclude_file = []\r\n exclude_regex = [\"_test.go\"]\r\n exclude_unchanged = false\r\n follow_symlink = false\r\n full_bin = \"\"\r\n include_dir = []\r\n include_ext = [\"go\", \"tpl\", \"tmpl\", \"html\"]\r\n kill_delay = \"0s\"\r\n log = \"build-errors.log\"\r\n send_interrupt = false\r\n stop_on_error = true\r\n\r\n[color]\r\n app = \"\"\r\n build = \"yellow\"\r\n main = \"magenta\"\r\n runner = \"green\"\r\n watcher = \"cyan\"\r\n\r\n[log]\r\n time = false\r\n\r\n[misc]\r\n clean_on_exit = false\r\n\r\n[screen]\r\n clear_on_rebuild = false\r\n<\/code><\/pre>\n<p>\u53ea\u9700\u4f7f\u7528air\u547d\u4ee4\u542f\u52a8\uff0c\u5c31\u80fd\u7acb\u5373\u53cd\u6620\u6e90\u4ee3\u7801\u7684\u66f4\u6539\uff0c\u56e0\u6b64\u5f00\u53d1\u73af\u5883\u7684\u5efa\u7acb\u5230\u6b64\u4e3a\u6b62\uff0c\u53ef\u4ee5\u7ee7\u7eed\u4e0b\u4e00\u6b65\u4e86\u3002<\/p>\n<h2>\u5f15\u5165 gqlgen<\/h2>\n<p>\u4f7f\u7528 gqlgen \u4f5c\u4e3a Go \u7684 GraphQL \u5e93\u3002<br \/>\n\u9996\u5148\uff0c\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u751f\u6210\u521d\u59cb\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>go get github.com\/99designs\/gqlgen\r\n<span class=\"nv\">$ <\/span>go run github.com\/99designs\/gqlgen init\r\n<\/code><\/pre>\n<p>\u4f1a\u751f\u6210\u4ee5\u4e0b\u7c7b\u578b\u7684\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code>graphql-gateway\/\r\n\u251c\u2500\u2500 gqlgen.yml\r\n\u251c\u2500\u2500 graph\r\n\u2502\u00a0\u00a0 \u251c\u2500\u2500 generated.go\r\n\u2502\u00a0\u00a0 \u251c\u2500\u2500 model\r\n\u2502\u00a0\u00a0 \u2502\u00a0\u00a0 \u2514\u2500\u2500 models_gen.go\r\n\u2502\u00a0\u00a0 \u251c\u2500\u2500 resolver.go\r\n\u2502\u00a0\u00a0 \u251c\u2500\u2500 schema.graphqls\r\n\u2502\u00a0\u00a0 \u2514\u2500\u2500 schema.resolvers.go\r\n\u2514\u2500\u2500 server.go\r\n<\/code><\/pre>\n<p>\u65e2\u7ecf\u4f7f\u7528\u4e86docker-compose\u5c06\u670d\u52a1\u5668\u542f\u52a8\uff0c\u73b0\u5728\u4ece\u5bb9\u5668\u4e2d\u9000\u51fa\uff0c\u5c1d\u8bd5\u6267\u884cdocker-compose up\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>docker-compose up <span class=\"nt\">-d<\/span>\r\n<span class=\"o\">[<\/span>+] Running 2\/2\r\n \u283f Network golang-web-server-sample_default Created\r\n \u283f Container golang-web-server-sample-graphql-gateway-1 Started\r\n<span class=\"nv\">$ <\/span>docker-compose logs\r\ngolang-web-server-sample-graphql-gateway-1 |\r\ngolang-web-server-sample-graphql-gateway-1 | __ _ ___\r\ngolang-web-server-sample-graphql-gateway-1 | \/ \/<span class=\"se\">\\ <\/span> | | | |_<span class=\"o\">)<\/span>\r\ngolang-web-server-sample-graphql-gateway-1 | \/_\/--<span class=\"se\">\\ <\/span>|_| |_| <span class=\"se\">\\_<\/span> , built with Go\r\ngolang-web-server-sample-graphql-gateway-1 |\r\ngolang-web-server-sample-graphql-gateway-1 | watching <span class=\"nb\">.<\/span>\r\ngolang-web-server-sample-graphql-gateway-1 | watching graph\r\ngolang-web-server-sample-graphql-gateway-1 | watching graph\/model\r\ngolang-web-server-sample-graphql-gateway-1 | <span class=\"o\">!<\/span>exclude tmp\r\ngolang-web-server-sample-graphql-gateway-1 | building...\r\ngolang-web-server-sample-graphql-gateway-1 | running...\r\ngolang-web-server-sample-graphql-gateway-1 | 2023\/01\/06 23:23:26 connect to http:\/\/localhost:8080\/ <span class=\"k\">for <\/span>GraphQL playground\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d570337434c4406cdb789\/38-0.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2023-01-07 8.26.17.png\" \/><\/div>\n<h2>GraphQL \u7684\u5b9e\u73b0<\/h2>\n<p>\u4f7f\u7528 gqlgen \u5b9e\u73b0 GraphQL \u7684\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n<p>graph\/schema.graphqls \u306b\u30b9\u30ad\u30fc\u30de\u5b9a\u7fa9\u3092\u66f8\u304d\u3001\u305d\u308c\u3092\u5143\u306b\u30e2\u30c7\u30eb\u3068\u30ea\u30be\u30eb\u30d0\u3092\u81ea\u52d5\u751f\u6210\u3059\u308b<br \/>\n\u81ea\u52d5\u751f\u6210\u3055\u308c\u305f\u30ea\u30be\u30eb\u30d0\u306b\u5fc5\u8981\u306a\u51e6\u7406\u3092\u5b9f\u88c5\u3059\u308b<\/p>\n<p>\u9996\u5148\uff0c\u5c1d\u8bd5\u5c06\u6a21\u5f0f\u5b9a\u4e49\u4ee5\u4e0b\u5217\u65b9\u5f0f\u4e66\u5199\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">type<\/span> <span class=\"n\">User<\/span> <span class=\"p\">{<\/span>\r\n <span class=\"n\">id<\/span><span class=\"p\">:<\/span> <span class=\"nb\">ID<\/span><span class=\"p\">!<\/span>\r\n <span class=\"n\">name<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span><span class=\"p\">!<\/span>\r\n <span class=\"n\">age<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Int<\/span><span class=\"p\">!<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Query<\/span> <span class=\"p\">{<\/span>\r\n <span class=\"n\">users<\/span><span class=\"p\">:<\/span> <span class=\"p\">[<\/span><span class=\"n\">User<\/span><span class=\"p\">!]!<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">input<\/span> <span class=\"n\">NewUser<\/span> <span class=\"p\">{<\/span>\r\n <span class=\"n\">name<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span><span class=\"p\">!<\/span>\r\n <span class=\"n\">age<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Int<\/span><span class=\"p\">!<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">input<\/span> <span class=\"n\">UserAttributes<\/span> <span class=\"p\">{<\/span>\r\n <span class=\"n\">id<\/span><span class=\"p\">:<\/span> <span class=\"nb\">ID<\/span><span class=\"p\">!<\/span>\r\n <span class=\"n\">name<\/span><span class=\"p\">:<\/span> <span class=\"nb\">String<\/span><span class=\"p\">!<\/span>\r\n <span class=\"n\">age<\/span><span class=\"p\">:<\/span> <span class=\"nb\">Int<\/span><span class=\"p\">!<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Mutation<\/span> <span class=\"p\">{<\/span>\r\n <span class=\"n\">createUser<\/span><span class=\"p\">(<\/span><span class=\"n\">input<\/span><span class=\"p\">:<\/span> <span class=\"n\">NewUser<\/span><span class=\"p\">!):<\/span> <span class=\"n\">User<\/span><span class=\"p\">!<\/span>\r\n <span class=\"n\">updateUser<\/span><span class=\"p\">(<\/span><span class=\"n\">input<\/span><span class=\"p\">:<\/span> <span class=\"n\">UserAttributes<\/span><span class=\"p\">!):<\/span> <span class=\"n\">User<\/span><span class=\"p\">!<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u9996\u5148\uff0c\u81ea\u52a8\u751f\u6210\u6a21\u578b\u548c\u89e3\u6790\u5668\uff0c\u4f46\u7531\u4e8e\u610f\u5916\u5730\u5220\u9664\u4e86\u6700\u521d\u751f\u6210\u7684\u6587\u4ef6\u4e2d\u7684\u5b9a\u4e49\uff0c\u6240\u4ee5\u9700\u8981\u5148\u5220\u9664\u6587\u4ef6\uff0c\u7136\u540e\u518d\u6b21\u751f\u6210\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span><span class=\"nb\">rm <\/span>graph\/schema.resolvers.go\r\n<span class=\"nv\">$ <\/span>gqlgen <span class=\"c\"># \u3053\u306e\u30b3\u30de\u30f3\u30c9\u3067 model, resolver \u3092\u81ea\u52d5\u751f\u6210\u3059\u308b<\/span>\r\n<\/code><\/pre>\n<p>\u7136\u540e\uff0cgraph\/\u76ee\u5f55\u4e0b\u7684\u6587\u4ef6\u4f1a\u81ea\u52a8\u7f16\u8f91\uff0c\u5e76\u6dfb\u52a0\u6240\u9700\u7684\u7c7b\u578b\u7b49\u3002\u5982\u679c\u67e5\u770bgraph\/schema.resolvers.go\uff0c\u4f1a\u53d1\u73b0\u751f\u6210\u4e86\u4ee5\u4e0b\u7684query\/mutation\uff0c\u4f8b\u5982Users\u3001CreateUser\u3001UpdateUser\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\">\/\/ CreateUser is the resolver for the createUser field.<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">mutationResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">CreateUser<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">input<\/span> <span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">NewUser<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Errorf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"not implemented: CreateUser - createUser\"<\/span><span class=\"p\">))<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/ UpdateUser is the resolver for the updateUser field.<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">mutationResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">UpdateUser<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">input<\/span> <span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">UserAttributes<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Errorf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"not implemented: UpdateUser - updateUser\"<\/span><span class=\"p\">))<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/ Users is the resolver for the users field.<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">queryResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">Users<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">)<\/span> <span class=\"p\">([]<\/span><span class=\"o\">*<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Errorf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"not implemented: Users - users\"<\/span><span class=\"p\">))<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u76ee\u524d\u7684\u60c5\u51b5\u4e0b\uff0c\u7531\u4e8e\u5c1a\u672a\u521b\u5efa\u540e\u7aef\u670d\u52a1\uff0c\u56e0\u6b64\u6211\u4eec\u9700\u8981\u624b\u52a8\u6765\u5b9e\u73b0\u5176\u4e2d\u7684\u5185\u5bb9\uff0c\u5e76\u4e34\u65f6\u6309\u7167\u4e0b\u8ff0\u65b9\u5f0f\u8fdb\u884c\u5b9e\u73b0\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\">\/\/ CreateUser is the resolver for the createUser field.<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">mutationResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">CreateUser<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">input<\/span> <span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">NewUser<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"k\">return<\/span> <span class=\"o\">&<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">{<\/span><span class=\"n\">ID<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"uuid\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"n\">input<\/span><span class=\"o\">.<\/span><span class=\"n\">Name<\/span><span class=\"p\">,<\/span> <span class=\"n\">Age<\/span><span class=\"o\">:<\/span> <span class=\"n\">input<\/span><span class=\"o\">.<\/span><span class=\"n\">Age<\/span><span class=\"p\">},<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/ UpdateUser is the resolver for the updateUser field.<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">mutationResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">UpdateUser<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">input<\/span> <span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">UserAttributes<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"k\">return<\/span> <span class=\"o\">&<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">{<\/span><span class=\"n\">ID<\/span><span class=\"o\">:<\/span> <span class=\"n\">input<\/span><span class=\"o\">.<\/span><span class=\"n\">ID<\/span><span class=\"p\">,<\/span> <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"n\">input<\/span><span class=\"o\">.<\/span><span class=\"n\">Name<\/span><span class=\"p\">,<\/span> <span class=\"n\">Age<\/span><span class=\"o\">:<\/span> <span class=\"n\">input<\/span><span class=\"o\">.<\/span><span class=\"n\">Age<\/span><span class=\"p\">},<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/ Users is the resolver for the users field.<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">queryResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">Users<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">)<\/span> <span class=\"p\">([]<\/span><span class=\"o\">*<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">users<\/span> <span class=\"o\">:=<\/span> <span class=\"p\">[]<\/span><span class=\"o\">*<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">{<\/span>\r\n\t\t<span class=\"p\">{<\/span><span class=\"n\">ID<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"1\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"\u5fb3\u5ddd\u5bb6\u5eb7\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">Age<\/span><span class=\"o\">:<\/span> <span class=\"m\">20<\/span><span class=\"p\">},<\/span>\r\n\t\t<span class=\"p\">{<\/span><span class=\"n\">ID<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"2\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"\u8c4a\u81e3\u79c0\u5409\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">Age<\/span><span class=\"o\">:<\/span> <span class=\"m\">25<\/span><span class=\"p\">},<\/span>\r\n\t\t<span class=\"p\">{<\/span><span class=\"n\">ID<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"3\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"\u7e54\u7530\u4fe1\u9577\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">Age<\/span><span class=\"o\">:<\/span> <span class=\"m\">30<\/span><span class=\"p\">},<\/span>\r\n\t<span class=\"p\">}<\/span>\r\n\r\n\t<span class=\"k\">return<\/span> <span class=\"n\">users<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d570337434c4406cdb789\/50-2.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2023-01-07 13.16.05.png\" \/><\/div>\n<p>\u6211\u4eec\u51b3\u5b9a\u5728\u8fd9\u4e00\u9636\u6bb5\u7ed3\u675fGraphQL\u7684\u5b9e\u73b0\u5e76\u7ee7\u7eed\u6784\u5efa\u540e\u7aef\u670d\u52a1\u3002<\/p>\n<h2>\u642d\u5efa Protocol Buffers \u5f00\u53d1\u73af\u5883<\/h2>\n<p>\u4e3a\u4e86\u5f00\u59cb\u4f7f\u7528 gRPC \u8fdb\u884c\u5f00\u53d1\uff0c\u6211\u4eec\u5c06\u521b\u5efa\u4e00\u4e2a\u57fa\u4e8e Protocol Buffers \u7684\u67b6\u6784\u5b9a\u4e49\u6765\u81ea\u52a8\u751f\u6210 gRPC \u5b9e\u73b0\u3002<br \/>\n\u9996\u5148\uff0c\u6211\u4eec\u4f1a\u9010\u6b65\u6dfb\u52a0\u6240\u9700\u7684\u670d\u52a1\u5230 docker-compose \u4e2d\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">version: \"3\"\r\nservices:\r\n<\/span> graphql-gateway:\r\n build: .\/graphql-gateway\r\n volumes:\r\n - .:\/app\r\n ports:\r\n - \"8080:8080\"\r\n command: air\r\n depends_on:\r\n - grpc-user-service\r\n<span class=\"gi\">+ proto:\r\n+ build: .\/proto\r\n+ volumes:\r\n+ - .:\/app\r\n<\/span><\/code><\/pre>\n<p>\u8fd9\u662f\u4e00\u4e2a\u5bb9\u5668\uff0c\u7528\u4e8e\u6839\u636e\u6a21\u5f0f\u5b9a\u4e49\u81ea\u52a8\u751f\u6210\u7528\u4e8e\u670d\u52a1\u95f4\u901a\u4fe1\u7684\u5b9e\u73b0\uff0c\u4ec5\u5728\u5f00\u53d1\u65f6\u6267\u884c\u3002<br \/>\n\u8bf7\u6309\u7167\u4ee5\u4e0b\u65b9\u5f0f\u7f16\u5199Dockerfile\u6765\u6784\u5efa\u5b83\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">FROM<\/span><span class=\"s\"> golang:1.19.3<\/span>\r\n\r\n<span class=\"k\">WORKDIR<\/span><span class=\"s\"> \/app\/proto<\/span>\r\n\r\n<span class=\"k\">RUN <\/span>apt-get update <span class=\"o\">&&<\/span> apt-get <span class=\"nb\">install<\/span> <span class=\"nt\">-y<\/span> protobuf-compiler\r\n\r\n<span class=\"k\">COPY<\/span><span class=\"s\"> go.mod go.sum .\/<\/span>\r\n<span class=\"k\">RUN <\/span>go mod download\r\n<\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\uff0c\u6309\u7167\u4e0a\u6b21\u7684\u65b9\u5f0f\u5148\u521b\u5efa go.mod \u548c go.sum \u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code>module github.com\/midwhite\/golang-web-server-sample\/proto\r\n\r\ngo 1.19\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span><span class=\"nb\">touch <\/span>proto\/go.sum\r\n<\/code><\/pre>\n<p>\u542f\u52a8Docker\u5bb9\u5668\u5e76\u8fdb\u884c\u5de5\u4f5c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>docker-compose build\r\n<span class=\"nv\">$ <\/span>docker-compose run <span class=\"nt\">--rm<\/span> proto bash\r\n<\/code><\/pre>\n<p>\u5b89\u88c5\u5fc5\u8981\u7684Go\u5e93\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>go get github.com\/golang\/protobuf\/protoc-gen-go@v1.5.2\r\n<\/code><\/pre>\n<p>\u7531\u4e8e\u5c06 protoc-gen-go \u6dfb\u52a0\u5230 go.mod\/go.sum \u6587\u4ef6\u4e2d\uff0c\u56e0\u6b64\u9700\u8981\u5c06\u4ee5\u4e0b\u5185\u5bb9\u6dfb\u52a0\u5230 Dockerfile \u4e2d\u5e76\u91cd\u65b0\u6784\u5efa\u955c\u50cf\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">FROM golang:1.19.3\r\n<\/span>\r\n<span class=\"p\">WORKDIR \/app\/proto\r\n<\/span>\r\n<span class=\"p\">RUN apt-get update && apt-get install -y protobuf-compiler\r\n<\/span>\r\n<span class=\"p\">COPY go.mod go.sum .\/\r\nRUN go mod download\r\n<\/span><span class=\"gi\">+\r\n+ RUN go install github.com\/golang\/protobuf\/protoc-gen-go@v1.5.2\r\n+ \r\n+ CMD [\"make\", \"generate\"]\r\n<\/span><\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>docker-compose build\r\n<\/code><\/pre>\n<p>\u8bf7\u6309\u7167\u4ee5\u4e0b\u65b9\u5f0f\u5c06\u6a21\u5f0f\u5b9a\u4e49\u6587\u4ef6\u6dfb\u52a0\u8fdb\u53bb\u3002<br \/>\n\u203b\u5c06\u5b58\u50a8\u5e93\u90e8\u5206\u9002\u5f53\u5730\u66ff\u6362\u4e3a\u60a8\u81ea\u5df1\u7684\u5b58\u50a8\u5e93\u540d\u79f0\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">syntax<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"proto3\"<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">option<\/span> <span class=\"na\">go_package<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"github.com\/midwhite\/golang-web-server-sample\/grpc-user-service\/pb\"<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kn\">package<\/span> <span class=\"nn\">pb<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">service<\/span> <span class=\"n\">UserService<\/span> <span class=\"p\">{<\/span>\r\n <span class=\"k\">rpc<\/span> <span class=\"n\">GetUserDetail<\/span><span class=\"p\">(<\/span><span class=\"n\">GetUserDetailParams<\/span><span class=\"p\">)<\/span> <span class=\"k\">returns<\/span> <span class=\"p\">(<\/span><span class=\"n\">UserDetail<\/span><span class=\"p\">)<\/span> <span class=\"p\">{}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"kd\">message<\/span> <span class=\"nc\">GetUserDetailParams<\/span> <span class=\"p\">{<\/span> <span class=\"kt\">string<\/span> <span class=\"na\">id<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">1<\/span><span class=\"p\">;<\/span> <span class=\"p\">}<\/span>\r\n\r\n<span class=\"kd\">message<\/span> <span class=\"nc\">UserDetail<\/span> <span class=\"p\">{<\/span>\r\n <span class=\"kt\">string<\/span> <span class=\"na\">id<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">1<\/span><span class=\"p\">;<\/span>\r\n <span class=\"kt\">string<\/span> <span class=\"na\">name<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">2<\/span><span class=\"p\">;<\/span>\r\n <span class=\"kt\">int64<\/span> <span class=\"na\">age<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">3<\/span><span class=\"p\">;<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5173\u4e8e\u8bed\u6cd5\uff0c\u8bf7\u53c2\u8003\u5b98\u65b9\u6587\u6863\u3002<br \/>\n\u4e3a\u4e86\u751f\u6210\u4e0e\u6b64\u67b6\u6784\u5b9a\u4e49\u6587\u4ef6\u5bf9\u5e94\u7684 gRPC \u5b9e\u73b0\uff0c\u8bf7\u6839\u636e\u4ee5\u4e0b\u5185\u5bb9\u6dfb\u52a0 Makefile\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nl\">generate<\/span><span class=\"o\">:<\/span>\r\n\tprotoc <span class=\"nt\">-I<\/span> <span class=\"nb\">.<\/span> .\/user-service\/user-service.proto <span class=\"nt\">--go_out<\/span><span class=\"o\">=<\/span><span class=\"nv\">plugins<\/span><span class=\"o\">=<\/span>grpc:.\/user-service\r\n<\/code><\/pre>\n<p>\u6267\u884c\u8fd9\u4e2a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>make generate\r\nprotoc <span class=\"nt\">-I<\/span> <span class=\"nb\">.<\/span> .\/user-service\/user-service.proto <span class=\"nt\">--go_out<\/span><span class=\"o\">=<\/span><span class=\"nv\">plugins<\/span><span class=\"o\">=<\/span>grpc:.\/user-service\r\n<\/code><\/pre>\n<p>\u7136\u540e\uff0c\u5728 user-service\/github.com\/midwhite\/golang-web-server-sample\/grpc-user-service\/pb\/ \u8fd9\u4e2a\u6df1\u5c42\u76ee\u5f55\u4e2d\u751f\u6210\u4e86\u4e00\u4e2a\u540d\u4e3a user-service.pb.go \u7684\u6587\u4ef6\u3002<br \/>\n\u8be5\u6587\u4ef6\u4e2d\u5305\u542b\u4e86\u7528\u4e8e gRPC \u901a\u4fe1\u7684\u5ba2\u6237\u7aef\u5b9e\u73b0\u548c\u670d\u52a1\u5668\u5b9e\u73b0\uff0c\u56e0\u6b64\u53ef\u4ee5\u5728\u5404\u4e2a\u670d\u52a1\u4e2d\u5f15\u7528\u5e76\u4f7f\u7528\u5b83\u3002<\/p>\n<h2>\u6784\u5efagRPC\u670d\u52a1\u5668\u5f00\u53d1\u73af\u5883<\/h2>\n<p>\u6309\u7167\u60ef\u4f8b\uff0c\u5728docker-compose\u4e2d\u6dfb\u52a0\u670d\u52a1\uff0c\u5e76\u6dfb\u52a0Dockerfile\uff0c\u521b\u5efago.mod\/go.sum\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">version: \"3\"\r\nservices:\r\n<\/span> graphql-gateway:\r\n build: .\/graphql-gateway\r\n volumes:\r\n - .:\/app\r\n ports:\r\n - \"8080:8080\"\r\n command: air\r\n depends_on:\r\n - grpc-user-service\r\n proto:\r\n build: .\/proto\r\n volumes:\r\n - .:\/app\r\n<span class=\"gi\">+ grpc-user-service:\r\n+ build: .\/grpc-user-service\r\n+ volumes:\r\n+ - .:\/app\r\n+ command: air\r\n<\/span><\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"k\">FROM<\/span><span class=\"s\"> golang:1.19.3<\/span>\r\n\r\n<span class=\"k\">WORKDIR<\/span><span class=\"s\"> \/app\/grpc-user-service<\/span>\r\n\r\n<span class=\"k\">RUN <\/span>apt-get update <span class=\"o\">&&<\/span> apt-get <span class=\"nb\">install<\/span> <span class=\"nt\">-y<\/span> postgresql-client\r\n\r\n<span class=\"k\">COPY<\/span><span class=\"s\"> go.mod go.sum .\/<\/span>\r\n<span class=\"k\">RUN <\/span>go mod download\r\n\r\n<span class=\"k\">RUN <\/span>go <span class=\"nb\">install <\/span>github.com\/cosmtrek\/air@v1.40.4\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code>module github.com\/midwhite\/golang-web-server-sample\/grpc-user-service\r\n\r\ngo 1.19\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span><span class=\"nb\">touch <\/span>grpc-user-service\/go.sum\r\n<\/code><\/pre>\n<p>\u6784\u5efa\u955c\u50cf\u5e76\u8fdb\u5165 Docker \u5bb9\u5668\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>docker-compose build\r\n<span class=\"nv\">$ <\/span>docker-compose run <span class=\"nt\">--rm<\/span> grpc-user-service bash\r\n<\/code><\/pre>\n<p>\u751f\u6210 air \u7684\u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code>$ air init\r\n<\/code><\/pre>\n<p>\u7531\u4e8e\u5f00\u53d1\u73af\u5883\u5df2\u7ecf\u8bbe\u5b9a\u597d\u4e86\uff0c\u73b0\u5728\u6211\u4eec\u53ef\u4ee5\u5f00\u59cb\u8fdb\u884cgRPC\u670d\u52a1\u5668\u7684\u5b9e\u73b0\u4e86\u3002<\/p>\n<h2>\u5b9e\u73b0 gRPC \u670d\u52a1\u5668<\/h2>\n<p>\u9996\u5148\u521b\u5efa\u4e00\u4e2apb\u76ee\u5f55\uff0c\u5e76\u4e3a\u4e4b\u524d\u5728proto\u4e2d\u751f\u6210\u7684\u6587\u4ef6\u521b\u5efa\u7b26\u53f7\u94fe\u63a5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span><span class=\"nb\">mkdir <\/span>pb\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">cd <\/span>pb\/\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">ln<\/span> <span class=\"nt\">-s<\/span> ..\/..\/proto\/user-service\/github.com\/midwhite\/golang-web-server-sample\/grpc-user-service\/pb\/user-service.pb.go userservice.go\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u8fd9\u6837\u505a\uff0c\u5728grpc-user-service\/pb\/userservice.go\u6587\u4ef6\u4e2d\u53ef\u4ee5\u5f15\u7528\u5148\u524d\u751f\u6210\u7684\u6587\u4ef6\u3002<br \/>\n\u56e0\u6b64\uff0c\u6211\u4eec\u5c06\u6dfb\u52a0\u4e00\u4e2a\u65b0\u7684impl\/userservice.go\u6587\u4ef6\uff0c\u5e76\u6309\u7167\u5148\u524d\u5728\u534f\u8bae\u7f13\u51b2\u533a\u4e2d\u5b9a\u4e49\u7684\u6a21\u5f0f\u5b9e\u73b0\u5176\u4e2d\u7684\u5904\u7406\u3002<br \/>\n\u203b \u53ea\u8981\u80fd\u591f\u901a\u8fc7gRPC\u8fdb\u884c\u901a\u4fe1\uff0c\u5904\u7406\u7684\u5185\u5bb9\u5c31\u53ea\u9700\u8981\u8fd4\u56de\u56fa\u5b9a\u503c\u5373\u53ef\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">impl<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">(<\/span>\r\n\t<span class=\"s\">\"context\"<\/span>\r\n\r\n\t<span class=\"s\">\"github.com\/midwhite\/golang-web-server-sample\/grpc-user-service\/pb\"<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">UserServiceServer<\/span> <span class=\"k\">struct<\/span><span class=\"p\">{}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">s<\/span> <span class=\"o\">*<\/span><span class=\"n\">UserServiceServer<\/span><span class=\"p\">)<\/span> <span class=\"n\">GetUsers<\/span><span class=\"p\">(<\/span><span class=\"n\">_<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">_<\/span> <span class=\"o\">*<\/span><span class=\"n\">pb<\/span><span class=\"o\">.<\/span><span class=\"n\">GetUsersParams<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">pb<\/span><span class=\"o\">.<\/span><span class=\"n\">UserList<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">users<\/span> <span class=\"o\">:=<\/span> <span class=\"p\">[]<\/span><span class=\"o\">*<\/span><span class=\"n\">pb<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">{<\/span>\r\n\t\t<span class=\"p\">{<\/span><span class=\"n\">Id<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"1\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"\u5317\u6761\u6c0f\u5eb7\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">Age<\/span><span class=\"o\">:<\/span> <span class=\"m\">20<\/span><span class=\"p\">},<\/span>\r\n\t\t<span class=\"p\">{<\/span><span class=\"n\">Id<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"2\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"\u6b66\u7530\u4fe1\u7384\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">Age<\/span><span class=\"o\">:<\/span> <span class=\"m\">30<\/span><span class=\"p\">},<\/span>\r\n\t\t<span class=\"p\">{<\/span><span class=\"n\">Id<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"3\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"\u4eca\u5ddd\u7fa9\u5143\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">Age<\/span><span class=\"o\">:<\/span> <span class=\"m\">40<\/span><span class=\"p\">},<\/span>\r\n\t<span class=\"p\">}<\/span>\r\n\t<span class=\"n\">response<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">pb<\/span><span class=\"o\">.<\/span><span class=\"n\">UserList<\/span><span class=\"p\">{<\/span>\r\n\t\t<span class=\"n\">Users<\/span><span class=\"o\">:<\/span> <span class=\"n\">users<\/span><span class=\"p\">,<\/span>\r\n\t<span class=\"p\">}<\/span>\r\n\t<span class=\"k\">return<\/span> <span class=\"o\">&<\/span><span class=\"n\">response<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">s<\/span> <span class=\"o\">*<\/span><span class=\"n\">UserServiceServer<\/span><span class=\"p\">)<\/span> <span class=\"n\">CreateUser<\/span><span class=\"p\">(<\/span><span class=\"n\">_<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">_<\/span> <span class=\"o\">*<\/span><span class=\"n\">pb<\/span><span class=\"o\">.<\/span><span class=\"n\">CreateUserParams<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">pb<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">user<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">pb<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">{<\/span>\r\n\t\t<span class=\"n\">Id<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"uuid\"<\/span><span class=\"p\">,<\/span>\r\n\t\t<span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"\u9577\u5c3e\u666f\u864e\"<\/span><span class=\"p\">,<\/span>\r\n\t\t<span class=\"n\">Age<\/span><span class=\"o\">:<\/span> <span class=\"m\">25<\/span><span class=\"p\">,<\/span>\r\n\t<span class=\"p\">}<\/span>\r\n\t<span class=\"k\">return<\/span> <span class=\"o\">&<\/span><span class=\"n\">user<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">s<\/span> <span class=\"o\">*<\/span><span class=\"n\">UserServiceServer<\/span><span class=\"p\">)<\/span> <span class=\"n\">UpdateUser<\/span><span class=\"p\">(<\/span><span class=\"n\">_<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">params<\/span> <span class=\"o\">*<\/span><span class=\"n\">pb<\/span><span class=\"o\">.<\/span><span class=\"n\">UpdateUserParams<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">pb<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">user<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">pb<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">{<\/span>\r\n\t\t<span class=\"n\">Id<\/span><span class=\"o\">:<\/span> <span class=\"n\">params<\/span><span class=\"o\">.<\/span><span class=\"n\">Id<\/span><span class=\"p\">,<\/span>\r\n\t\t<span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"\u4e0a\u6749\u8b19\u4fe1\"<\/span><span class=\"p\">,<\/span>\r\n\t\t<span class=\"n\">Age<\/span><span class=\"o\">:<\/span> <span class=\"m\">35<\/span><span class=\"p\">,<\/span>\r\n\t<span class=\"p\">}<\/span>\r\n\t<span class=\"k\">return<\/span> <span class=\"o\">&<\/span><span class=\"n\">user<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u70ba\u4e86\u5c07\u6b64\u670d\u52a1\u5668\u5b9e\u73b0\u4f5c\u4e3a\u7ec8\u7aef\u8282\u70b9\u516c\u5f00\uff0c\u6211\u4eec\u5c06\u6309\u7167\u4ee5\u4e0b\u65b9\u5f0f\u5b9e\u73b0\u5165\u53e3\u70b9\u3002\uff08\u53ea\u662f\u4eff\u6548\u5b98\u65b9\u793a\u4f8b\u5b9e\u73b0\uff09<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">(<\/span>\r\n\t<span class=\"s\">\"flag\"<\/span>\r\n\t<span class=\"s\">\"fmt\"<\/span>\r\n\t<span class=\"s\">\"log\"<\/span>\r\n\t<span class=\"s\">\"net\"<\/span>\r\n\r\n\t<span class=\"s\">\"google.golang.org\/grpc\"<\/span>\r\n\r\n\t<span class=\"s\">\"github.com\/midwhite\/golang-web-server-sample\/grpc-user-service\/impl\"<\/span>\r\n\t<span class=\"s\">\"github.com\/midwhite\/golang-web-server-sample\/grpc-user-service\/pb\"<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">var<\/span> <span class=\"p\">(<\/span>\r\n\t<span class=\"n\">port<\/span> <span class=\"o\">=<\/span> <span class=\"n\">flag<\/span><span class=\"o\">.<\/span><span class=\"n\">Int<\/span><span class=\"p\">(<\/span><span class=\"s\">\"port\"<\/span><span class=\"p\">,<\/span> <span class=\"m\">50051<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"The server port\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">flag<\/span><span class=\"o\">.<\/span><span class=\"n\">Parse<\/span><span class=\"p\">()<\/span>\r\n\t<span class=\"n\">lis<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">net<\/span><span class=\"o\">.<\/span><span class=\"n\">Listen<\/span><span class=\"p\">(<\/span><span class=\"s\">\"tcp\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Sprintf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"grpc-user-service:%d\"<\/span><span class=\"p\">,<\/span> <span class=\"o\">*<\/span><span class=\"n\">port<\/span><span class=\"p\">))<\/span>\r\n\r\n\t<span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n\t\t<span class=\"n\">log<\/span><span class=\"o\">.<\/span><span class=\"n\">Fatalf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"failed to listen: %v\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n\t<span class=\"p\">}<\/span>\r\n\r\n\t<span class=\"k\">var<\/span> <span class=\"n\">opts<\/span> <span class=\"p\">[]<\/span><span class=\"n\">grpc<\/span><span class=\"o\">.<\/span><span class=\"n\">ServerOption<\/span>\r\n\t<span class=\"n\">grpcServer<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">grpc<\/span><span class=\"o\">.<\/span><span class=\"n\">NewServer<\/span><span class=\"p\">(<\/span><span class=\"n\">opts<\/span><span class=\"o\">...<\/span><span class=\"p\">)<\/span>\r\n\t<span class=\"n\">pb<\/span><span class=\"o\">.<\/span><span class=\"n\">RegisterUserServiceServer<\/span><span class=\"p\">(<\/span><span class=\"n\">grpcServer<\/span><span class=\"p\">,<\/span> <span class=\"o\">&<\/span><span class=\"n\">impl<\/span><span class=\"o\">.<\/span><span class=\"n\">UserServiceServer<\/span><span class=\"p\">{})<\/span>\r\n\t<span class=\"n\">grpcServer<\/span><span class=\"o\">.<\/span><span class=\"n\">Serve<\/span><span class=\"p\">(<\/span><span class=\"n\">lis<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u53ea\u9700\u5b89\u88c5\u6240\u9700\u7684\u5e93\uff0c\u5373\u53ef\u542f\u52a8\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>go mod tidy\r\n<\/code><\/pre>\n<h2>\u5b9e\u73b0gRPC\u5ba2\u6237\u7aef\u3002<\/h2>\n<p>\u6700\u7ec8\uff0c\u6211\u4eec\u5c06\u5b9e\u73b0\u4e00\u4e2a gRPC \u5ba2\u6237\u7aef\uff0c\u7528\u4e8e\u8fde\u63a5 graphql-gateway \u5230 grpc-user-service\u3002\u867d\u7136\u5728 graphql-gateway \u4e2d\uff0c\u6211\u4eec\u53ea\u9700\u8981\u5f15\u7528 user-service.pb.go \u6587\u4ef6\uff0c\u5e76\u5c06\u53c2\u6570\u4f20\u9012\u7ed9\u5ba2\u6237\u7aef\u5b9e\u73b0\u5373\u53ef\uff0c\u6240\u4ee5\u5f88\u7b80\u5355\u3002<\/p>\n<p>\u9996\u5148\uff0c\u521b\u5efa\u4e00\u4e2a\u8c61\u5f81\u6027\u7684\u94fe\u63a5\u5982\u4e0b\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span><span class=\"nb\">mkdir<\/span> \/app\/graphql-gateway\/pb\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">cd<\/span> \/app\/graphql-gateway\/pb\r\n<span class=\"nv\">$ <\/span><span class=\"nb\">ln<\/span> <span class=\"nt\">-s<\/span> ..\/..\/proto\/user-service\/github.com\/midwhite\/golang-web-server-sample\/grpc-user-service\/pb\/user-service.pb.go userservice.go\r\n<\/code><\/pre>\n<p>\u63a5\u4e0b\u6765\u5b9e\u73b0 gRPC \u5ba2\u6237\u7aef\u3002<br \/>\n\uff08\u4ec5\u4ec5\u662f\u6309\u7167\u5b98\u65b9\u793a\u4f8b\u5b9e\u73b0\uff09<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">userservice<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">(<\/span>\r\n\t<span class=\"s\">\"google.golang.org\/grpc\"<\/span>\r\n\t<span class=\"s\">\"google.golang.org\/grpc\/credentials\/insecure\"<\/span>\r\n\r\n\t<span class=\"s\">\"github.com\/midwhite\/golang-web-server-sample\/graphql-gateway\/pb\"<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">var<\/span> <span class=\"n\">Client<\/span> <span class=\"n\">pb<\/span><span class=\"o\">.<\/span><span class=\"n\">UserServiceClient<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">Setup<\/span><span class=\"p\">()<\/span> <span class=\"p\">(<\/span><span class=\"k\">func<\/span><span class=\"p\">(),<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"k\">var<\/span> <span class=\"n\">opts<\/span> <span class=\"p\">[]<\/span><span class=\"n\">grpc<\/span><span class=\"o\">.<\/span><span class=\"n\">DialOption<\/span>\r\n\t<span class=\"n\">opts<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">append<\/span><span class=\"p\">(<\/span><span class=\"n\">opts<\/span><span class=\"p\">,<\/span> <span class=\"n\">grpc<\/span><span class=\"o\">.<\/span><span class=\"n\">WithTransportCredentials<\/span><span class=\"p\">(<\/span><span class=\"n\">insecure<\/span><span class=\"o\">.<\/span><span class=\"n\">NewCredentials<\/span><span class=\"p\">()))<\/span>\r\n\r\n\t<span class=\"n\">conn<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">grpc<\/span><span class=\"o\">.<\/span><span class=\"n\">Dial<\/span><span class=\"p\">(<\/span><span class=\"s\">\"grpc-user-service:50051\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">opts<\/span><span class=\"o\">...<\/span><span class=\"p\">)<\/span>\r\n\t<span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n\t\t<span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span>\r\n\t<span class=\"p\">}<\/span>\r\n\t<span class=\"n\">Client<\/span> <span class=\"o\">=<\/span> <span class=\"n\">pb<\/span><span class=\"o\">.<\/span><span class=\"n\">NewUserServiceClient<\/span><span class=\"p\">(<\/span><span class=\"n\">conn<\/span><span class=\"p\">)<\/span>\r\n\r\n\t<span class=\"k\">return<\/span> <span class=\"k\">func<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n\t\t<span class=\"n\">conn<\/span><span class=\"o\">.<\/span><span class=\"n\">Close<\/span><span class=\"p\">()<\/span>\r\n\t<span class=\"p\">},<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728server.go\u4e2d\u8c03\u7528\u6b64Setup\u51fd\u6570\u4f5c\u4e3a\u5165\u53e3\u70b9\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">package main\r\n<\/span>\r\n<span class=\"p\">import (\r\n<\/span>\t\"log\"\r\n\t\"net\/http\"\r\n\t\"os\"\r\n\r\n\t\"github.com\/99designs\/gqlgen\/graphql\/handler\"\r\n\t\"github.com\/99designs\/gqlgen\/graphql\/playground\"\r\n\t\"github.com\/midwhite\/golang-web-server-sample\/graphql-gateway\/graph\"\r\n\t\"github.com\/midwhite\/golang-web-server-sample\/graphql-gateway\/userservice\"\r\n)\r\n\r\n<span class=\"p\">const defaultPort = \"8080\"\r\n<\/span>\r\n<span class=\"p\">func main() {\r\n<\/span><span class=\"gi\">+\tcloser, err := userservice.Setup()\r\n+\tif err != nil {\r\n+\t\tlog.Fatal(err)\r\n+\t}\r\n+\tdefer closer()\r\n<\/span>\r\n\tport := os.Getenv(\"PORT\")\r\n\tif port == \"\" {\r\n\t\tport = defaultPort\r\n\t}\r\n\r\n\tsrv := handler.NewDefaultServer(graph.NewExecutableSchema(graph.Config{Resolvers: &graph.Resolver{}}))\r\n\r\n\thttp.Handle(\"\/\", playground.Handler(\"GraphQL playground\", \"\/query\"))\r\n\thttp.Handle(\"\/query\", srv)\r\n\r\n\tlog.Printf(\"connect to http:\/\/localhost:%s\/ for GraphQL playground\", port)\r\n\tlog.Fatal(http.ListenAndServe(\":\"+port, nil))\r\n}\r\n<\/code><\/pre>\n<p>\u6700\u540e\uff0c\u5728GraphQL\u7684\u89e3\u6790\u5668\u4e2d\u8c03\u7528gRPC\u5ba2\u6237\u7aef\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">graph<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">(<\/span>\r\n\t<span class=\"s\">\"context\"<\/span>\r\n\r\n\t<span class=\"s\">\"github.com\/midwhite\/golang-web-server-sample\/graphql-gateway\/graph\/model\"<\/span>\r\n\t<span class=\"s\">\"github.com\/midwhite\/golang-web-server-sample\/graphql-gateway\/pb\"<\/span>\r\n\t<span class=\"s\">\"github.com\/midwhite\/golang-web-server-sample\/graphql-gateway\/userservice\"<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">mutationResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">CreateUser<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">input<\/span> <span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">NewUser<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">params<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">pb<\/span><span class=\"o\">.<\/span><span class=\"n\">CreateUserParams<\/span><span class=\"p\">{<\/span><span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"n\">input<\/span><span class=\"o\">.<\/span><span class=\"n\">Name<\/span><span class=\"p\">,<\/span> <span class=\"n\">Age<\/span><span class=\"o\">:<\/span> <span class=\"kt\">int64<\/span><span class=\"p\">(<\/span><span class=\"n\">input<\/span><span class=\"o\">.<\/span><span class=\"n\">Age<\/span><span class=\"p\">)}<\/span>\r\n\t<span class=\"n\">res<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">userservice<\/span><span class=\"o\">.<\/span><span class=\"n\">Client<\/span><span class=\"o\">.<\/span><span class=\"n\">CreateUser<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span><span class=\"p\">,<\/span> <span class=\"o\">&<\/span><span class=\"n\">params<\/span><span class=\"p\">)<\/span>\r\n\r\n\t<span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n\t\t<span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span>\r\n\t<span class=\"p\">}<\/span>\r\n\r\n\t<span class=\"n\">user<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">{<\/span><span class=\"n\">ID<\/span><span class=\"o\">:<\/span> <span class=\"n\">res<\/span><span class=\"o\">.<\/span><span class=\"n\">Id<\/span><span class=\"p\">,<\/span> <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"n\">res<\/span><span class=\"o\">.<\/span><span class=\"n\">Name<\/span><span class=\"p\">,<\/span> <span class=\"n\">Age<\/span><span class=\"o\">:<\/span> <span class=\"n\">input<\/span><span class=\"o\">.<\/span><span class=\"n\">Age<\/span><span class=\"p\">}<\/span>\r\n\r\n\t<span class=\"k\">return<\/span> <span class=\"o\">&<\/span><span class=\"n\">user<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">mutationResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">UpdateUser<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">,<\/span> <span class=\"n\">input<\/span> <span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">UserAttributes<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">params<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">pb<\/span><span class=\"o\">.<\/span><span class=\"n\">UpdateUserParams<\/span><span class=\"p\">{<\/span><span class=\"n\">Id<\/span><span class=\"o\">:<\/span> <span class=\"n\">input<\/span><span class=\"o\">.<\/span><span class=\"n\">ID<\/span><span class=\"p\">,<\/span> <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"n\">input<\/span><span class=\"o\">.<\/span><span class=\"n\">Name<\/span><span class=\"p\">,<\/span> <span class=\"n\">Age<\/span><span class=\"o\">:<\/span> <span class=\"kt\">int64<\/span><span class=\"p\">(<\/span><span class=\"n\">input<\/span><span class=\"o\">.<\/span><span class=\"n\">Age<\/span><span class=\"p\">)}<\/span>\r\n\t<span class=\"n\">res<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">userservice<\/span><span class=\"o\">.<\/span><span class=\"n\">Client<\/span><span class=\"o\">.<\/span><span class=\"n\">UpdateUser<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span><span class=\"p\">,<\/span> <span class=\"o\">&<\/span><span class=\"n\">params<\/span><span class=\"p\">)<\/span>\r\n\r\n\t<span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n\t\t<span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span>\r\n\t<span class=\"p\">}<\/span>\r\n\r\n\t<span class=\"n\">user<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">{<\/span><span class=\"n\">ID<\/span><span class=\"o\">:<\/span> <span class=\"n\">res<\/span><span class=\"o\">.<\/span><span class=\"n\">Id<\/span><span class=\"p\">,<\/span> <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"n\">res<\/span><span class=\"o\">.<\/span><span class=\"n\">Name<\/span><span class=\"p\">,<\/span> <span class=\"n\">Age<\/span><span class=\"o\">:<\/span> <span class=\"n\">input<\/span><span class=\"o\">.<\/span><span class=\"n\">Age<\/span><span class=\"p\">}<\/span>\r\n\r\n\t<span class=\"k\">return<\/span> <span class=\"o\">&<\/span><span class=\"n\">user<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">queryResolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">Users<\/span><span class=\"p\">(<\/span><span class=\"n\">ctx<\/span> <span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Context<\/span><span class=\"p\">)<\/span> <span class=\"p\">([]<\/span><span class=\"o\">*<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">res<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">userservice<\/span><span class=\"o\">.<\/span><span class=\"n\">Client<\/span><span class=\"o\">.<\/span><span class=\"n\">GetUsers<\/span><span class=\"p\">(<\/span><span class=\"n\">context<\/span><span class=\"o\">.<\/span><span class=\"n\">Background<\/span><span class=\"p\">(),<\/span> <span class=\"o\">&<\/span><span class=\"n\">pb<\/span><span class=\"o\">.<\/span><span class=\"n\">GetUsersParams<\/span><span class=\"p\">{})<\/span>\r\n\r\n\t<span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n\t\t<span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span>\r\n\t<span class=\"p\">}<\/span>\r\n\r\n\t<span class=\"n\">users<\/span> <span class=\"o\">:=<\/span> <span class=\"nb\">make<\/span><span class=\"p\">([]<\/span><span class=\"o\">*<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"nb\">len<\/span><span class=\"p\">(<\/span><span class=\"n\">res<\/span><span class=\"o\">.<\/span><span class=\"n\">Users<\/span><span class=\"p\">))<\/span>\r\n\r\n\t<span class=\"k\">for<\/span> <span class=\"n\">i<\/span><span class=\"p\">,<\/span> <span class=\"n\">user<\/span> <span class=\"o\">:=<\/span> <span class=\"k\">range<\/span> <span class=\"n\">res<\/span><span class=\"o\">.<\/span><span class=\"n\">Users<\/span> <span class=\"p\">{<\/span>\r\n\t\t<span class=\"n\">users<\/span><span class=\"p\">[<\/span><span class=\"n\">i<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"o\">&<\/span><span class=\"n\">model<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">{<\/span><span class=\"n\">ID<\/span><span class=\"o\">:<\/span> <span class=\"n\">user<\/span><span class=\"o\">.<\/span><span class=\"n\">Id<\/span><span class=\"p\">,<\/span> <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"n\">user<\/span><span class=\"o\">.<\/span><span class=\"n\">Name<\/span><span class=\"p\">,<\/span> <span class=\"n\">Age<\/span><span class=\"o\">:<\/span> <span class=\"kt\">int<\/span><span class=\"p\">(<\/span><span class=\"n\">user<\/span><span class=\"o\">.<\/span><span class=\"n\">Age<\/span><span class=\"p\">)}<\/span>\r\n\t<span class=\"p\">}<\/span>\r\n\r\n\t<span class=\"k\">return<\/span> <span class=\"n\">users<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">Resolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">Mutation<\/span><span class=\"p\">()<\/span> <span class=\"n\">MutationResolver<\/span> <span class=\"p\">{<\/span> <span class=\"k\">return<\/span> <span class=\"o\">&<\/span><span class=\"n\">mutationResolver<\/span><span class=\"p\">{<\/span><span class=\"n\">r<\/span><span class=\"p\">}<\/span> <span class=\"p\">}<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"o\">*<\/span><span class=\"n\">Resolver<\/span><span class=\"p\">)<\/span> <span class=\"n\">Query<\/span><span class=\"p\">()<\/span> <span class=\"n\">QueryResolver<\/span> <span class=\"p\">{<\/span> <span class=\"k\">return<\/span> <span class=\"o\">&<\/span><span class=\"n\">queryResolver<\/span><span class=\"p\">{<\/span><span class=\"n\">r<\/span><span class=\"p\">}<\/span> <span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">mutationResolver<\/span> <span class=\"k\">struct<\/span><span class=\"p\">{<\/span> <span class=\"o\">*<\/span><span class=\"n\">Resolver<\/span> <span class=\"p\">}<\/span>\r\n<span class=\"k\">type<\/span> <span class=\"n\">queryResolver<\/span> <span class=\"k\">struct<\/span><span class=\"p\">{<\/span> <span class=\"o\">*<\/span><span class=\"n\">Resolver<\/span> <span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d570337434c4406cdb789\/104-2.png\" alt=\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8 2023-01-07 18.27.38.png\" \/><\/div>\n<p>\u6211\u5011\u53ef\u4ee5\u660e\u767d\u4e0a\u6749\u8b19\u4fe1\u7121\u4e8b\u5730\u88ab\u9577\u5c3e\u666f\u864e\u6240\u63a5\u73ed\u3002<br \/>\n\u5230\u76ee\u524d\u70ba\u6b62\uff0c\u6211\u5011\u6210\u529f\u4f7f\u7528GraphQL\u8207\u524d\u7aef\u9032\u884c\u901a\u8a0a\uff0c\u4e26\u4f7f\u7528gRPC\u8207\u5f8c\u7aef\u9032\u884c\u901a\u8a0a\uff0c\u4e26\u5efa\u7acb\u4e86\u4e00\u500b\u7531Go\u8a9e\u8a00\u88fd\u4f5c\u7684\u5fae\u670d\u52d9\u958b\u767c\u74b0\u5883\u3002<\/p>\n<h2>\u4f5c\u8005\u7559\u8a00<\/h2>\n<p>\u672c\u6765\u9700\u8981\u8fdb\u884c\u4e0e\u6570\u636e\u5e93\u7684\u8fde\u63a5\u8bbe\u7f6e\uff0c\u64cd\u4f5c\u65f6\u7684\u76d1\u89c6\u8bbe\u7f6e\u4ee5\u53ca\u6d4b\u8bd5\u8bbe\u7f6e\u7b49\u7b49\u5f88\u591a\u4e8b\u60c5\u3002\u4f46\u662f\u8fd9\u6b21\u53ea\u662f\u7b80\u5355\u5730\u89e3\u91ca\u4e86\u670d\u52a1\u4e4b\u95f4\u7684\u901a\u4fe1\u3002\u7531\u4e8e\u6211\u521a\u5f00\u59cb\u5b66\u4e60Go\u8bed\u8a00\uff0c\u5bf9\u4e8e\u4f8b\u5982\u4ece\u534f\u8bae\u7f13\u51b2\u533a\u751f\u6210Go\u4ee5\u5916\u7684\u5b58\u6839\u65f6\u7684\u76ee\u5f55\u7ed3\u6784\u662f\u5426\u6b63\u786e\uff0cGo\u7684gRPC\u5ba2\u6237\u7aef\u7684\u521d\u59cb\u5316\u5904\u7406\u662f\u5426\u6b63\u786e\u7b49\u7b49\uff0c\u6211\u5bf9\u6574\u4e2a\u5b9e\u73b0\u6709\u5f88\u591a\u7591\u95ee\uff0c\u4f46\u6682\u65f6\u5148\u8ba9\u5b83\u80fd\u8fd0\u884c\u8d77\u6765\u5427\uff01<\/p>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d570337434c4406cdb789\/108-0.png\" alt=\"jrRD7Uvn_400x400.png\" \/><\/div>\n<p>\u5982\u679c\u60a8\u6709\u4efb\u4f55\u53d1\u73b0\u6216\u610f\u89c1\uff0c\u8bf7\u5728\u8bc4\u8bba\u4e2d\u544a\u8bc9\u6211\uff0c\u6211\u4f1a\u975e\u5e38\u9ad8\u5174\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u80cc\u666f – : \u56e0\u4e3a\u5728\u5e74\u672b\u5e74\u521d\u5b66\u4e60\u4e86 Go \u8bed\u8a00\uff0c\u6240\u4ee5\u5c1d\u8bd5\u7740\u5b9e\u73b0\u4e86 GraphQL \u548c gRPC \u7684 […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-44090","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast 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\u8bed\u8a00\uff0c\u6240\u4ee5\u5c1d\u8bd5\u7740\u5b9e\u73b0\u4e86 GraphQL \u548c gRPC \u7684 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u642d\u5efa\u4f7f\u7528-go-\u7f16\u5199\u7684\u5fae\u670d\u52a1\uff0c\u901a\u8fc7-graphql-\u548c-grpc-\u8fdb\u884c\u901a\u4fe1\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-10-06T17:29:58+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-03T16:44:24+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d570337434c4406cdb789\/38-0.png\" \/>\n<meta name=\"author\" content=\"\u97f5, \u79d1\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u97f5, \u79d1\" \/>\n\t<meta name=\"twitter:label2\" 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