{"id":47844,"date":"2022-12-09T12:41:22","date_gmt":"2023-05-13T02:02:43","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8typescript%e5%ae%89%e5%85%a8%e5%9c%b0%e5%bc%80%e5%8f%91apollo%e6%9c%8d%e5%8a%a1%e5%99%a8\/"},"modified":"2024-04-29T04:27:14","modified_gmt":"2024-04-28T20:27:14","slug":"%e4%bd%bf%e7%94%a8typescript%e5%ae%89%e5%85%a8%e5%9c%b0%e5%bc%80%e5%8f%91apollo%e6%9c%8d%e5%8a%a1%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8typescript%e5%ae%89%e5%85%a8%e5%9c%b0%e5%bc%80%e5%8f%91apollo%e6%9c%8d%e5%8a%a1%e5%99%a8\/","title":{"rendered":"\u4f7f\u7528Typescript\u5b89\u5168\u5730\u5f00\u53d1Apollo\u670d\u52a1\u5668"},"content":{"rendered":"<p>\u5728\u7f16\u5199Apollo\u670d\u52a1\u5668\u65f6\uff0c\u7531\u4e8e\u5927\u90e8\u5206\u6587\u6863\u90fd\u662f\u7528JavaScript\u548cTypeScript\u7f16\u5199\u7684\uff0c\u6240\u4ee5\u6709\u70b9\u56f0\u6270\u3002<\/p>\n<h2>\u7531GraphQL Codegen\u81ea\u52a8\u751f\u6210\u4ee3\u7801<\/h2>\n<p>GraphQL\u7684\u9b45\u529b\u4e3b\u8981\u4f53\u73b0\u5728\u5176\u53ef\u9760\u7684\u6a21\u5f0f\uff08Schema\uff09\u4e0a\u3002GraphQL Codegen\u7684\u76ee\u7684\u5c31\u662f\u501f\u9274\u8fd9\u79cd\u53ef\u9760\u6027\uff0c\u5e76\u5c06\u5176\u5e94\u7528\u5728TypeScript\u7684\u7c7b\u578b\u5b9a\u4e49\u4e2d\u3002<\/p>\n<p>\u8bf7\u5148\u4ecenpm\u4e0a\u83b7\u5f97\u6240\u9700\u7684\u6a21\u5757\u3002<\/p>\n<pre class=\"post-pre\"><code>npm <span class=\"nb\">install<\/span> @graphql-codegen\/cli @graphql-codegen\/typescript @graphql-codegen\/typescript-operations @graphql-codegen\/typescript-resolvers graphql-toolkit <span class=\"nt\">--save-dev<\/span>\r\n<\/code><\/pre>\n<p>\u5982\u679c\u4f60\u521b\u5efa\u4e86\u4e00\u4e2a\u7528SDL\u7f16\u5199\u7684schema.graphql\u6587\u4ef6\uff0c\u90a3\u4e48\u8bf7\u5728\u6839\u6587\u4ef6\u5939\u9644\u8fd1\u7f16\u5199codegen.yml\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">overwrite<\/span><span class=\"pi\">:<\/span> <span class=\"no\">true<\/span>\r\n<span class=\"na\">documents<\/span><span class=\"pi\">:<\/span> <span class=\"no\">null<\/span>\r\n<span class=\"na\">schema<\/span><span class=\"pi\">:<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">**\/*.graphql\"<\/span>\r\n<span class=\"na\">generates<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"s\">src\/generated\/graphql.ts<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">plugins<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"pi\">-<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">typescript\"<\/span>\r\n      <span class=\"pi\">-<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">typescript-operations\"<\/span>\r\n      <span class=\"pi\">-<\/span> <span class=\"s2\">\"<\/span><span class=\"s\">typescript-resolvers\"<\/span>\r\n    <span class=\"na\">config<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">useIndexSignature<\/span><span class=\"pi\">:<\/span> <span class=\"no\">true<\/span>\r\n      <span class=\"na\">avoidOptionals<\/span><span class=\"pi\">:<\/span> <span class=\"no\">true<\/span>\r\n<\/code><\/pre>\n<p>\u5728`src\/generated\/graphql.ts`\u4e2d\u751f\u6210\u4e86\u8bb8\u591a\u7c7b\u578b\u3002\u5176\u4e2d\u5305\u62ec\u4e00\u4e9b\u7279\u5b9a\u4e8eApollo\u7684\u7c7b\u578b\uff0c\u540c\u65f6\u8fd8\u6709\u4e00\u4e9b\u666e\u901a\u7c7b\u578b\u548c\u8f93\u5165\u7c7b\u578b\uff0c\u53ef\u4ee5\u76f4\u63a5\u7528\u4f5c\u7c7b\u578b\uff0c\u5e76\u8fdb\u884c\u6709\u6548\u5229\u7528\u3002<\/p>\n<h2>\u521b\u5efa\u5165\u53e3\u70b9<\/h2>\n<p>\u51e0\u4e4e\u548c\u6559\u7a0b\u4e00\u6837\uff0c\u521b\u5efa\u4e00\u4e2aindex.ts\u6587\u4ef6\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">ApolloServer<\/span><span class=\"p\">,<\/span> <span class=\"nx\">gql<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">apollo-server<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nx\">fs<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">fs<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nx\">path<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">path<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"nx\">resolvers<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/resolvers<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span> <span class=\"c1\">\/\/\u5f8c\u3067\u5b9a\u7fa9<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">dataSources<\/span><span class=\"p\">,<\/span> <span class=\"nx\">context<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/datasources<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span> <span class=\"c1\">\/\/\u5f8c\u3067\u5b9a\u7fa9<\/span>\r\n\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">typeDefs<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">gql<\/span><span class=\"p\">(<\/span><span class=\"nx\">fs<\/span><span class=\"p\">.<\/span><span class=\"nx\">readFileSync<\/span><span class=\"p\">(<\/span><span class=\"nx\">path<\/span><span class=\"p\">.<\/span><span class=\"nx\">resolve<\/span><span class=\"p\">(<\/span><span class=\"nx\">__dirname<\/span><span class=\"p\">,<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">&lt;\u30b9\u30ad\u30fc\u30de\u30d5\u30a1\u30a4\u30eb\u3078\u306e\u30d1\u30b9&gt;<\/span><span class=\"dl\">'<\/span><span class=\"p\">),<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">utf8<\/span><span class=\"dl\">'<\/span><span class=\"p\">));<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">server<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">ApolloServer<\/span><span class=\"p\">({<\/span>\r\n  <span class=\"nx\">typeDefs<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">resolvers<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">dataSources<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">context<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"nx\">server<\/span><span class=\"p\">.<\/span><span class=\"nx\">listen<\/span><span class=\"p\">(<\/span><span class=\"mi\">4002<\/span><span class=\"p\">).<\/span><span class=\"nx\">then<\/span><span class=\"p\">(({<\/span> <span class=\"nx\">url<\/span> <span class=\"p\">})<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nx\">log<\/span><span class=\"p\">(<\/span><span class=\"s2\">`? Server ready at <\/span><span class=\"p\">${<\/span><span class=\"nx\">url<\/span><span class=\"p\">}<\/span><span class=\"s2\">`<\/span><span class=\"p\">);<\/span>\r\n<span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<p>\u5bf9\u4e8e typeDefs \u7684\u5b9a\u4e49\uff0c\u6211\u611f\u89c9\u4e0d\u591f\u4f18\u96c5&#8230;\u6b63\u5728\u5bfb\u627e\u66f4\u597d\u7684\u65b9\u6cd5\u3002<\/p>\n<h2>\u6570\u636e\u6e90\uff0c\u4e0a\u4e0b\u6587\u7684\u5b9a\u4e49\u3002<\/h2>\n<p>\u9996\u5148\uff0c\u8ba9\u6211\u4eec\u5b9a\u4e49\u4e00\u4e0b\u80cc\u666f\u60c5\u51b5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">context<\/span> <span class=\"o\">=<\/span> <span class=\"k\">async<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n  <span class=\"cm\">\/* Context\u306e\u5b9a\u7fa9 *\/<\/span>\r\n  <span class=\"na\">ctx1<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">foo<\/span><span class=\"dl\">\"<\/span>\r\n  <span class=\"na\">ctx2<\/span><span class=\"p\">:<\/span> <span class=\"dl\">\"<\/span><span class=\"s2\">bar<\/span><span class=\"dl\">\"<\/span>\r\n<span class=\"p\">});<\/span>\r\n\r\n<span class=\"kd\">type<\/span> <span class=\"nx\">PartialContext<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">ReturnType<\/span><span class=\"o\">&lt;<\/span><span class=\"k\">typeof<\/span> <span class=\"nx\">context<\/span><span class=\"o\">&gt;<\/span> <span class=\"kd\">extends<\/span> <span class=\"nb\">Promise<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">infer<\/span> <span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">?<\/span> <span class=\"nx\">T<\/span> <span class=\"p\">:<\/span> <span class=\"nx\">never<\/span><span class=\"p\">;<\/span>\r\n<\/code><\/pre>\n<p>\u8bf7\u53c2\u8003\u6211\u7684\u4ee5\u5f80\u6587\u7ae0\u6765\u4e86\u89e3\u6709\u5173Typescript\u7684infer\u7684\u4fe1\u606f\u2764\ufe0f<\/p>\n<p>\u63a5\u4e0b\u6765\u5b9a\u4e49DataSources\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">dataSources<\/span> <span class=\"o\">=<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"p\">({<\/span>\r\n  <span class=\"cm\">\/* Datasource\u306e\u5b9a\u7fa9 *\/<\/span>\r\n  <span class=\"na\">ds1<\/span><span class=\"p\">:<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">MyDataSource1<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">PartialContext<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">(),<\/span>\r\n  <span class=\"na\">ds2<\/span><span class=\"p\">:<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">MyDataSource2<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">PartialContext<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">()<\/span>\r\n<span class=\"p\">});<\/span>\r\n<\/code><\/pre>\n<p>\u4e3a\u4ec0\u4e48DataSource\u4f7f\u7528\u6cdb\u578b\u5c06\u5728\u540e\u9762\u8fdb\u884c\u8bf4\u660e\u3002\u5b9e\u9645\u4f7f\u7528\u7684\u4e0a\u4e0b\u6587\u662f\u5c06\u6570\u636e\u6e90\u6dfb\u52a0\u5230PartialContext\u4e2d\u7684\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"k\">export<\/span> <span class=\"kd\">type<\/span> <span class=\"nx\">TContext<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">PartialContext<\/span> <span class=\"o\">&amp;<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"na\">dataSources<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ReturnType<\/span><span class=\"o\">&lt;<\/span><span class=\"k\">typeof<\/span> <span class=\"nx\">dataSources<\/span><span class=\"o\">&gt;<\/span>\r\n<span class=\"p\">};<\/span>\r\n<\/code><\/pre>\n<h3>\u6dfb\u52a0\u81ea\u5df1\u7684\u6570\u636e\u6e90<\/h3>\n<p>\u6211\u5011\u9019\u6a23\u505a\u5427\u3002 zu\u00f2 ba.)<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">DataSource<\/span><span class=\"p\">,<\/span> <span class=\"nx\">DataSourceConfig<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">apollo-datasource<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">InMemoryLRUCache<\/span><span class=\"p\">,<\/span> <span class=\"nx\">KeyValueCache<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">apollo-server-caching<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kr\">interface<\/span> <span class=\"nx\">Context<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nl\">ctx1<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"k\">default<\/span> <span class=\"kd\">class<\/span> <span class=\"nx\">MyDataSource1<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span> <span class=\"kd\">extends<\/span> <span class=\"nx\">Context<\/span><span class=\"o\">&gt;<\/span> <span class=\"kd\">extends<\/span> <span class=\"nx\">DataSource<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">T<\/span><span class=\"o\">&gt;<\/span> <span class=\"p\">{<\/span>\r\n\r\n  <span class=\"nx\">context<\/span><span class=\"p\">?:<\/span> <span class=\"nx\">Context<\/span>\r\n  <span class=\"nx\">cache<\/span><span class=\"p\">?:<\/span> <span class=\"nx\">KeyValueCache<\/span>\r\n\r\n  <span class=\"kd\">constructor<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">super<\/span><span class=\"p\">();<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"nx\">initialize<\/span><span class=\"p\">({<\/span> <span class=\"nx\">context<\/span><span class=\"p\">,<\/span> <span class=\"nx\">cache<\/span> <span class=\"p\">}:<\/span> <span class=\"nx\">DataSourceConfig<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">Context<\/span><span class=\"o\">&gt;<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">context<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">context<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"c1\">\/\/ this.context.ctx1\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">cache<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">cache<\/span> <span class=\"o\">||<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">InMemoryLRUCache<\/span><span class=\"p\">();<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u4f7f\u7528\u6cdb\u578b\u7684\u76ee\u7684\u662f\u4e3a\u4e86\u786e\u4fddDataSource\u6240\u9700\u7684\u4e0a\u4e0b\u6587\u4e0ePartialContext\u4fdd\u6301\u4e00\u81f4\u3002<br \/>\n\u4f7f\u7528\u6cdb\u578b\u662f\u4e3a\u4e86\u786e\u4fddDataSource\u6240\u9700\u7684\u4e0a\u4e0b\u6587\u4e0ePartialContext\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n<h2>\u89e3\u6790\u7a0b\u5e8f\u7684\u5b9a\u4e49<\/h2>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">TContext<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/datasources<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">Resolvers<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/generated\/graphql<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">resolvers<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Resolvers<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">TContext<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\r\n   <span class=\"c1\">\/\/ resolver\u306e\u306a\u304b\u307f<\/span>\r\n<span class=\"p\">};<\/span>\r\n<\/code><\/pre>\n<p>\u7ec8\u4e8e\u770b\u5230\u4e86graphql-codegen\u7684\u4f18\u70b9\u3002\u901a\u8fc7\u4f7f\u7528Resolvers\u548cTContext\uff0c\u53ef\u4ee5\u63a8\u65ad\u51fa\u89e3\u6790\u5668\u51fd\u6570\u7684\u53c2\u6570\u7c7b\u578b\u3002\u8fd8\u53ef\u4ee5\u5c06\u89e3\u6790\u5668\u5206\u89e3\u5e76\u4f7f\u6587\u4ef6\u66f4\u52a0\u7d27\u51d1\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">TContext<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/datasources<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"p\">{<\/span> <span class=\"nx\">Resolvers<\/span><span class=\"p\">,<\/span> <span class=\"nx\">QueryResolvers<\/span><span class=\"p\">,<\/span> <span class=\"nx\">UserResovlers<\/span> <span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">.\/generated\/graphql<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">queryResolvers<\/span><span class=\"p\">:<\/span> <span class=\"nx\">QueryResolvers<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">TContext<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{...}<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">userResolvers<\/span><span class=\"p\">:<\/span> <span class=\"nx\">UserResolvers<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">TContext<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{...}<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">resolvers<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Resolvers<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">TContext<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"na\">Query<\/span><span class=\"p\">:<\/span> <span class=\"nx\">queryResolvers<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">User<\/span><span class=\"p\">:<\/span> <span class=\"nx\">userResolvers<\/span> \r\n<span class=\"p\">};<\/span>\r\n<\/code><\/pre>\n<h2>\u6807\u91cf\u7684\u5b9a\u4e49\u3002<\/h2>\n<p>\u8fd9\u4e2ascalar\u7684\u89c4\u683c\u592a\u96be\u61c2\u4e86\uff0c\u611f\u89c9\u6709\u70b9\u7cdf\u7cd5\u3002<\/p>\n<p>\u8fd9\u4e2a\u6837\u5b50<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">import<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nx\">GraphQLScalarType<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">Kind<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">GraphQLScalarTypeConfig<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">ValueNode<\/span>\r\n<span class=\"p\">}<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">graphql<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n<span class=\"k\">import<\/span> <span class=\"nx\">moment<\/span> <span class=\"k\">from<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">moment<\/span><span class=\"dl\">'<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">config<\/span><span class=\"p\">:<\/span> <span class=\"nx\">GraphQLScalarTypeConfig<\/span><span class=\"o\">&lt;<\/span><span class=\"nx\">moment<\/span><span class=\"p\">.<\/span><span class=\"nx\">Moment<\/span><span class=\"p\">,<\/span> <span class=\"kr\">string<\/span><span class=\"o\">&gt;<\/span> <span class=\"o\">=<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"na\">name<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">DateTime<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"na\">description<\/span><span class=\"p\">:<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">DateTime custom scalar type, in the form of YYYY-MM-DDTHH:mm:ss<\/span><span class=\"dl\">'<\/span><span class=\"p\">,<\/span>\r\n  <span class=\"nx\">parseValue<\/span><span class=\"p\">(<\/span><span class=\"na\">value<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"nx\">moment<\/span><span class=\"p\">(<\/span><span class=\"nx\">value<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">},<\/span>\r\n  <span class=\"nx\">serialize<\/span><span class=\"p\">(<\/span><span class=\"na\">value<\/span><span class=\"p\">:<\/span> <span class=\"nx\">moment<\/span><span class=\"p\">.<\/span><span class=\"nx\">Moment<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"nx\">value<\/span><span class=\"p\">.<\/span><span class=\"nx\">format<\/span><span class=\"p\">();<\/span>\r\n  <span class=\"p\">},<\/span>\r\n  <span class=\"nx\">parseLiteral<\/span><span class=\"p\">(<\/span><span class=\"na\">ast<\/span><span class=\"p\">:<\/span> <span class=\"nx\">ValueNode<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">switch<\/span> <span class=\"p\">(<\/span><span class=\"nx\">ast<\/span><span class=\"p\">.<\/span><span class=\"nx\">kind<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"k\">case<\/span> <span class=\"nx\">Kind<\/span><span class=\"p\">.<\/span><span class=\"na\">STRING<\/span><span class=\"p\">:<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nx\">moment<\/span><span class=\"p\">(<\/span><span class=\"nx\">ast<\/span><span class=\"p\">.<\/span><span class=\"nx\">value<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"nl\">default<\/span><span class=\"p\">:<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"kc\">null<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"p\">}<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<span class=\"p\">};<\/span>\r\n\r\n<span class=\"k\">export<\/span> <span class=\"kd\">const<\/span> <span class=\"nx\">datetimeScalar<\/span> <span class=\"o\">=<\/span> <span class=\"p\">()<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"k\">new<\/span> <span class=\"nx\">GraphQLScalarType<\/span><span class=\"p\">(<\/span><span class=\"nx\">config<\/span><span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<p>GraphQLScalarTypeConfig&lt;moment.Moment, string&gt;\u8868\u793a\u7684\u662f\u4e00\u4e2aScalar\u7c7b\u578b\uff0c\u5b83\u5728SDL\u4e2d\u5177\u6709string\u7c7b\u578b\uff0c\u5e76\u4e14\u5728\u89e3\u6790\u5668\u7684\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4e2d\u5177\u6709Moment\u7c7b\u578b\u3002parseValue\u7528\u4e8e\u5c06SDL\u8f6c\u6362\u4e3a\u89e3\u6790\u5668\uff0c\u800cserialize\u7528\u4e8e\u5c06\u89e3\u6790\u5668\u8f6c\u6362\u4e3aSDL\u3002<\/p>\n<p>\u5bf9\u4e8eparseLiteral\uff0c\u60a8\u6253\u7b97\u7528\u4e8e\u4ec0\u4e48\u76ee\u7684\u5462\uff1f\u6211\u6709\u70b9\u641e\u4e0d\u61c2\u3002<\/p>\n<h2>Directive\u7684\u5b9a\u4e49\u662f\u4ec0\u4e48\uff1f<\/h2>\n<p>\u56e0\u4e3a\u6211\u8fd8\u6ca1\u6709\u4f7f\u7528\u8fc7\uff0c\u6240\u4ee5\u4e0d\u77e5\u9053\u3002<\/p>\n<h2>\u4f7f\u7528\u8054\u90a6<\/h2>\n<p>\u4f7f\u7528Apollo\u7684\u539f\u56e0\u4e4b\u4e00\u53ef\u80fd\u662f\u57fa\u4e8e\u8054\u90a6\u673a\u5236\uff0c\u5bb9\u6613\u5b9a\u4e49\u5fae\u670d\u52a1\u3002<\/p>\n<p>\u9996\u5148\uff0c\u5728codegen.yml\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"na\">generates<\/span><span class=\"pi\">:<\/span>\r\n  <span class=\"s\">src\/generated\/graphql.ts<\/span><span class=\"pi\">:<\/span>\r\n    <span class=\"na\">plugins<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"s\">...<\/span>\r\n    <span class=\"na\">config<\/span><span class=\"pi\">:<\/span>\r\n      <span class=\"na\">avoidOptionals<\/span><span class=\"pi\">:<\/span> <span class=\"no\">true<\/span>\r\n      <span class=\"na\">useIndexSignature<\/span><span class=\"pi\">:<\/span> <span class=\"no\">true<\/span>\r\n      <span class=\"na\">federation<\/span><span class=\"pi\">:<\/span> <span class=\"no\">true<\/span> <span class=\"c1\">#\u8ffd\u52a0<\/span>\r\n<\/code><\/pre>\n<p>\u53ea\u9700\u8981\u6309\u7167\u6559\u7a0b\u7684\u6b65\u9aa4\u8bbe\u7f6e\u6a21\u5f0f\u5373\u53ef\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u7f16\u5199Apollo\u670d\u52a1\u5668\u65f6\uff0c\u7531\u4e8e\u5927\u90e8\u5206\u6587\u6863\u90fd\u662f\u7528JavaScript\u548cTypeScript\u7f16\u5199\u7684\uff0c\u6240\u4ee5\u6709\u70b9\u56f0\u6270 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-47844","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 SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u4f7f\u7528Typescript\u5b89\u5168\u5730\u5f00\u53d1Apollo\u670d\u52a1\u5668 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528typescript\u5b89\u5168\u5730\u5f00\u53d1apollo\u670d\u52a1\u5668\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4f7f\u7528Typescript\u5b89\u5168\u5730\u5f00\u53d1Apollo\u670d\u52a1\u5668\" \/>\n<meta property=\"og:description\" content=\"\u5728\u7f16\u5199Apollo\u670d\u52a1\u5668\u65f6\uff0c\u7531\u4e8e\u5927\u90e8\u5206\u6587\u6863\u90fd\u662f\u7528JavaScript\u548cTypeScript\u7f16\u5199\u7684\uff0c\u6240\u4ee5\u6709\u70b9\u56f0\u6270 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528typescript\u5b89\u5168\u5730\u5f00\u53d1apollo\u670d\u52a1\u5668\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-05-13T02:02:43+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-28T20:27:14+00:00\" \/>\n<meta name=\"author\" content=\"\u6e05, \u626c\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6e05, \u626c\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8typescript%e5%ae%89%e5%85%a8%e5%9c%b0%e5%bc%80%e5%8f%91apollo%e6%9c%8d%e5%8a%a1%e5%99%a8\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8typescript%e5%ae%89%e5%85%a8%e5%9c%b0%e5%bc%80%e5%8f%91apollo%e6%9c%8d%e5%8a%a1%e5%99%a8\/\",\"name\":\"\u4f7f\u7528Typescript\u5b89\u5168\u5730\u5f00\u53d1Apollo\u670d\u52a1\u5668 - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2023-05-13T02:02:43+00:00\",\"dateModified\":\"2024-04-28T20:27:14+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8typescript%e5%ae%89%e5%85%a8%e5%9c%b0%e5%bc%80%e5%8f%91apollo%e6%9c%8d%e5%8a%a1%e5%99%a8\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8typescript%e5%ae%89%e5%85%a8%e5%9c%b0%e5%bc%80%e5%8f%91apollo%e6%9c%8d%e5%8a%a1%e5%99%a8\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8typescript%e5%ae%89%e5%85%a8%e5%9c%b0%e5%bc%80%e5%8f%91apollo%e6%9c%8d%e5%8a%a1%e5%99%a8\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u4f7f\u7528Typescript\u5b89\u5168\u5730\u5f00\u53d1Apollo\u670d\u52a1\u5668\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461\",\"name\":\"\u6e05, \u626c\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g\",\"caption\":\"\u6e05, \u626c\"},\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/author\/qingyang\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8typescript%e5%ae%89%e5%85%a8%e5%9c%b0%e5%bc%80%e5%8f%91apollo%e6%9c%8d%e5%8a%a1%e5%99%a8\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"\u4f7f\u7528Typescript\u5b89\u5168\u5730\u5f00\u53d1Apollo\u670d\u52a1\u5668 - Blog - Silicon Cloud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528typescript\u5b89\u5168\u5730\u5f00\u53d1apollo\u670d\u52a1\u5668\/","og_locale":"zh_CN","og_type":"article","og_title":"\u4f7f\u7528Typescript\u5b89\u5168\u5730\u5f00\u53d1Apollo\u670d\u52a1\u5668","og_description":"\u5728\u7f16\u5199Apollo\u670d\u52a1\u5668\u65f6\uff0c\u7531\u4e8e\u5927\u90e8\u5206\u6587\u6863\u90fd\u662f\u7528JavaScript\u548cTypeScript\u7f16\u5199\u7684\uff0c\u6240\u4ee5\u6709\u70b9\u56f0\u6270 [&hellip;]","og_url":"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528typescript\u5b89\u5168\u5730\u5f00\u53d1apollo\u670d\u52a1\u5668\/","og_site_name":"Blog - Silicon Cloud","article_published_time":"2023-05-13T02:02:43+00:00","article_modified_time":"2024-04-28T20:27:14+00:00","author":"\u6e05, \u626c","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"\u6e05, \u626c","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"2 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8typescript%e5%ae%89%e5%85%a8%e5%9c%b0%e5%bc%80%e5%8f%91apollo%e6%9c%8d%e5%8a%a1%e5%99%a8\/","url":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8typescript%e5%ae%89%e5%85%a8%e5%9c%b0%e5%bc%80%e5%8f%91apollo%e6%9c%8d%e5%8a%a1%e5%99%a8\/","name":"\u4f7f\u7528Typescript\u5b89\u5168\u5730\u5f00\u53d1Apollo\u670d\u52a1\u5668 - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website"},"datePublished":"2023-05-13T02:02:43+00:00","dateModified":"2024-04-28T20:27:14+00:00","author":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461"},"breadcrumb":{"@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8typescript%e5%ae%89%e5%85%a8%e5%9c%b0%e5%bc%80%e5%8f%91apollo%e6%9c%8d%e5%8a%a1%e5%99%a8\/#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8typescript%e5%ae%89%e5%85%a8%e5%9c%b0%e5%bc%80%e5%8f%91apollo%e6%9c%8d%e5%8a%a1%e5%99%a8\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8typescript%e5%ae%89%e5%85%a8%e5%9c%b0%e5%bc%80%e5%8f%91apollo%e6%9c%8d%e5%8a%a1%e5%99%a8\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.silicloud.com\/zh\/blog\/"},{"@type":"ListItem","position":2,"name":"\u4f7f\u7528Typescript\u5b89\u5168\u5730\u5f00\u53d1Apollo\u670d\u52a1\u5668"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#website","url":"https:\/\/www.silicloud.com\/zh\/blog\/","name":"Blog - Silicon Cloud","description":"","inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461","name":"\u6e05, \u626c","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g","caption":"\u6e05, \u626c"},"url":"https:\/\/www.silicloud.com\/zh\/blog\/author\/qingyang\/"},{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8typescript%e5%ae%89%e5%85%a8%e5%9c%b0%e5%bc%80%e5%8f%91apollo%e6%9c%8d%e5%8a%a1%e5%99%a8\/#local-main-organization-logo","url":"","contentUrl":"","caption":"Blog - Silicon Cloud"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/47844","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/comments?post=47844"}],"version-history":[{"count":2,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/47844\/revisions"}],"predecessor-version":[{"id":81746,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/posts\/47844\/revisions\/81746"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/media?parent=47844"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/categories?post=47844"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/zh\/blog\/wp-json\/wp\/v2\/tags?post=47844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}