{"id":48172,"date":"2023-02-28T15:51:39","date_gmt":"2023-12-22T00:59:04","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%ae%89%e8%a3%85postgraphile%ef%bc%8c%e5%b9%b6%e5%ae%9e%e6%96%bd%e4%b8%80%e4%b8%aa%e7%ae%80%e5%8d%95%e7%9a%84graphql-api%e7%9a%84%e7%ae%80%e5%8d%95%e6%95%99%e7%a8%8b%e3%80%82\/"},"modified":"2024-04-29T16:43:58","modified_gmt":"2024-04-29T08:43:58","slug":"%e5%ae%89%e8%a3%85postgraphile%ef%bc%8c%e5%b9%b6%e5%ae%9e%e6%96%bd%e4%b8%80%e4%b8%aa%e7%ae%80%e5%8d%95%e7%9a%84graphql-api%e7%9a%84%e7%ae%80%e5%8d%95%e6%95%99%e7%a8%8b%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%ae%89%e8%a3%85postgraphile%ef%bc%8c%e5%b9%b6%e5%ae%9e%e6%96%bd%e4%b8%80%e4%b8%aa%e7%ae%80%e5%8d%95%e7%9a%84graphql-api%e7%9a%84%e7%ae%80%e5%8d%95%e6%95%99%e7%a8%8b%e3%80%82\/","title":{"rendered":"\u5b89\u88c5PostGraphile\uff0c\u5e76\u5b9e\u65bd\u4e00\u4e2a\u7b80\u5355\u7684GraphQL API\u7684\u7b80\u5355\u6559\u7a0b"},"content":{"rendered":"

PostGraphile\u662f\u4e00\u79cd\u4e2d\u95f4\u4ef6\uff0c\u53ef\u4ee5\u5728PostgreSQL\u6570\u636e\u5e93\u4e0a\u751f\u6210GraphQL API\u3002\u6709\u5173PostGraphile\u7684\u6982\u8ff0\uff0c\u8bf7\u53c2\u9605\u4ee5\u4e0b\u6587\u7ae0\u3002<\/p>\n

\u672c\u5e16\u65e8\u5728\u8bf4\u660e\u5982\u4f55\u5b89\u88c5PostGraphile\u5e76\u6784\u5efa\u7b80\u5355\u7684GraphQL API\u7684\u6b65\u9aa4\u3002<\/p>\n

\u5b89\u88c5PostGraphile<\/h2>\n

PostGraphile\u662f\u4e00\u4e2a\u5728JavaScript\u7684HTTP\u6846\u67b6Express\u4e0a\u5b9e\u73b0\u7684\u4e2d\u95f4\u4ef6\uff0c\u53ef\u4ee5\u901a\u8fc7NPM\u8fdb\u884c\u5b89\u88c5\u3002<\/p>\n

# NPM\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u5834\u5408<\/span>\r\nnpm install <\/span>postgraphile\r\n# Yarn\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u5834\u5408<\/span>\r\nyarn add postgraphile\r\n<\/code><\/pre>\n
\u5b89\u88c5PostgreSQL\u670d\u52a1\u5668<\/h2>\n
\u7531\u4e8ePostGraphile\u9700\u8981PostgreSQL\u670d\u52a1\u5668\u624d\u80fd\u8fd0\u884c\uff0c\u56e0\u6b64\u9700\u8981\u5148\u8fdb\u884c\u5b89\u88c5\u3002\u5728Homebrew\u4e0a\u5b89\u88c5\u662f\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u3002\u6839\u636ePostGraphile\u7684\u8fd0\u884c\u8981\u6c42\uff0c\u6700\u65b0\u652f\u6301\u7684\u5b98\u65b9\u7248\u672c\u662fPostgreSQL v12\uff0c\u6240\u4ee5\u6211\u4eec\u5c06\u5b89\u88c5\u7248\u672c12\u3002<\/p>\n
brew install <\/span>postgresql@12\r\n<\/code><\/pre>\n
\u542f\u52a8PostgreSQL\u670d\u52a1\u5668<\/h2>\n
\u5728\u5b89\u88c5\u5b8cPostgreSQL\u670d\u52a1\u5668\u540e\uff0c\u542f\u52a8\u5b83\u3002\u542f\u52a8\u547d\u4ee4\u5982\u4e0b\uff1a<\/p>\n
\/usr\/local\/opt\/postgresql@12\/bin\/postgres -D<\/span> \/usr\/local\/var\/postgresql@12\r\n<\/code><\/pre>\n
\u4e3a\u4e86\u68c0\u67e5\u670d\u52a1\u5668\u8fde\u63a5\uff0c\u6211\u4eec\u5c06\u4f7f\u7528psql\u547d\u4ee4\u6267\u884cSQL\u8bed\u53e5\u3002<\/p>\n
export <\/span>PATH<\/span>=<\/span>\"\/usr\/local\/opt\/postgresql@12\/bin:<\/span>$PATH<\/span>\"<\/span>\r\npsql postgres:\/\/\/postgres -c<\/span> 'select version();'<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u51fa\u73b0\u4ee5\u4e0b\u7ed3\u679c\uff0c\u5c31\u53ef\u4ee5\u4e86\u3002<\/p>\n
                                                      version\r\n-------------------------------------------------------------------------------------------------------------------\r\n PostgreSQL 12.7 on x86_64-apple-darwin19.6.0, compiled by Apple clang version 12.0.0 (clang-1200.0.32.29), 64-bit\r\n(1 row)\r\n<\/code><\/pre>\n
\u521b\u5efa\u6570\u636e\u5e93<\/h2>\n
\u670d\u52a1\u5668\u51c6\u5907\u5b8c\u6210\u540e\uff0c\u6211\u4eec\u5c06\u5f00\u59cb\u521b\u5efa\u6570\u636e\u3002\u9996\u5148\uff0c\u521b\u5efa\u4e0b\u4e00\u4e2a\u6587\u4ef6database.sql\u3002<\/p>\n
create<\/span> table<\/span> if<\/span> not<\/span> exists<\/span> authors<\/span>\r\n(<\/span>\r\n  id<\/span>   serial<\/span> not<\/span> null<\/span> primary<\/span> key<\/span>,<\/span>\r\n  name<\/span> text<\/span>   not<\/span> null<\/span> default<\/span> ''<\/span>\r\n);<\/span>\r\n\r\ncreate<\/span> table<\/span> if<\/span> not<\/span> exists<\/span> posts<\/span>\r\n(<\/span>\r\n  id<\/span>        serial<\/span> not<\/span> null<\/span> primary<\/span> key<\/span>,<\/span>\r\n  title<\/span>     text<\/span>   not<\/span> null<\/span> default<\/span> ''<\/span>,<\/span>\r\n  body<\/span>      text<\/span>   not<\/span> null<\/span> default<\/span> ''<\/span>,<\/span>\r\n  author_id<\/span> int<\/span>    not<\/span> null<\/span> references<\/span> authors<\/span> on<\/span> update<\/span> cascade<\/span> on<\/span> delete<\/span> cascade<\/span>\r\n);<\/span>\r\n\r\ntruncate<\/span> table<\/span> authors<\/span> restart<\/span> identity<\/span> cascade<\/span>;<\/span>\r\ntruncate<\/span> table<\/span> posts<\/span> restart<\/span> identity<\/span> cascade<\/span>;<\/span>\r\n\r\ninsert<\/span> into<\/span> authors<\/span>\r\n  (<\/span>name<\/span>)<\/span>\r\n  values<\/span>\r\n    (<\/span>'alice'<\/span>),<\/span>\r\n    (<\/span>'bob'<\/span>),<\/span>\r\n    (<\/span>'carol'<\/span>);<\/span>\r\n\r\ninsert<\/span> into<\/span> posts<\/span>\r\n  (<\/span>title<\/span>,<\/span> body<\/span>,<\/span> author_id<\/span>)<\/span>\r\n  values<\/span>\r\n    (<\/span>'\u6295\u7a3f1'<\/span>,<\/span> '\u672c\u65871'<\/span>,<\/span> 1<\/span>),<\/span>\r\n    (<\/span>'\u6295\u7a3f2'<\/span>,<\/span> '\u672c\u65872'<\/span>,<\/span> 1<\/span>),<\/span>\r\n    (<\/span>'\u6295\u7a3f3'<\/span>,<\/span> '\u672c\u65873'<\/span>,<\/span> 1<\/span>),<\/span>\r\n    (<\/span>'\u6295\u7a3f4'<\/span>,<\/span> '\u672c\u65874'<\/span>,<\/span> 2<\/span>),<\/span>\r\n    (<\/span>'\u6295\u7a3f5'<\/span>,<\/span> '\u672c\u65875'<\/span>,<\/span> 2<\/span>),<\/span>\r\n    (<\/span>'\u6295\u7a3f6'<\/span>,<\/span> '\u672c\u65876'<\/span>,<\/span> 2<\/span>),<\/span>\r\n    (<\/span>'\u6295\u7a3f7'<\/span>,<\/span> '\u672c\u65877'<\/span>,<\/span> 3<\/span>),<\/span>\r\n    (<\/span>'\u6295\u7a3f8'<\/span>,<\/span> '\u672c\u65878'<\/span>,<\/span> 3<\/span>),<\/span>\r\n    (<\/span>'\u6295\u7a3f9'<\/span>,<\/span> '\u672c\u65879'<\/span>,<\/span> 3<\/span>);<\/span>\r\n<\/code><\/pre>\n
\u5c06\u6b64\u6587\u4ef6\u5bfc\u5165\u6570\u636e\u5e93\u5e76\u521b\u5efa\u6570\u636e\u3002<\/p>\n
psql postgres:\/\/\/postgres -f<\/span> database.sql\r\n<\/code><\/pre>\n
\u6211\u4f1a\u786e\u8ba4\u4e00\u4e0b\u6570\u636e\u662f\u5426\u5df2\u7ecf\u8f93\u5165\u3002<\/p>\n
psql postgres:\/\/\/postgres -c<\/span> 'select * from posts'<\/span>\r\n id<\/span> | title | body  | author_id\r\n----<\/span>+-------+-------+-----------\r\n  1 | \u6295\u7a3f1 | \u672c\u65871 |         1\r\n  2 | \u6295\u7a3f2 | \u672c\u65872 |         1\r\n  3 | \u6295\u7a3f3 | \u672c\u65873 |         1\r\n  4 | \u6295\u7a3f4 | \u672c\u65874 |         2\r\n  5 | \u6295\u7a3f5 | \u672c\u65875 |         2\r\n  6 | \u6295\u7a3f6 | \u672c\u65876 |         2\r\n  7 | \u6295\u7a3f7 | \u672c\u65877 |         3\r\n  8 | \u6295\u7a3f8 | \u672c\u65878 |         3\r\n  9 | \u6295\u7a3f9 | \u672c\u65879 |         3\r\n(<\/span>9 rows)<\/span>\r\n<\/code><\/pre>\n
\u542f\u52a8PostGraphile<\/h2>\n
\u6570\u636e\u5e93\u51c6\u5907\u597d\u4e86\uff0c\u73b0\u5728\u5f00\u59cb\u542f\u52a8PostGraphile\u3002\u968f\u7740PostGraphile\u8fdb\u5165\u5b9e\u9645\u8fd0\u8425\u9636\u6bb5\uff0c\u542f\u52a8\u9009\u9879\u4f1a\u53d8\u5f97\u8d8a\u6765\u8d8a\u591a\uff0c\u6240\u4ee5\u6700\u597d\u4ece\u4e00\u5f00\u59cb\u5c31\u51c6\u5907\u4e00\u4e2a\u542f\u52a8\u811a\u672c\u3002\u542f\u52a8\u811a\u672c\u7684\u6587\u4ef6\u540d\u53ef\u4ee5\u968f\u4fbf\u53d6\uff0c\u4f46\u8fd9\u91cc\u6211\u4eec\u5c06\u5b83\u547d\u540d\u4e3abin\/postgraphile.sh\u3002<\/p>\n
#!\/usr\/bin\/env bash<\/span>\r\npnpx postgraphile \\<\/span>\r\n  --connection<\/span> postgres:\/\/\/postgres \\<\/span>\r\n  --watch<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u4e2a–watch\u9009\u9879\u662f\u4e3a\u4e86\u8ba9GraphQL\u6a21\u5f0f\u5728\u6570\u636e\u5e93\u6a21\u5f0f\u53d1\u751f\u53d8\u5316\u65f6\u4e5f\u80fd\u76f8\u5e94\u5730\u66f4\u6539\uff0c\u4ee5\u4fdd\u6301\u4e00\u81f4\u6027\u3002<\/p>\n
\u4e0d\u8981\u5fd8\u8bb0\u6388\u4e88\u6267\u884c\u6743\u9650\u3002<\/p>\n
chmod<\/span> +x bin\/postgraphile.sh\r\n<\/code><\/pre>\n
\u6211\u5011\u5c07\u555f\u52d5PostGraphile\u3002<\/p>\n
.\/bin\/postgraphile.sh\r\n<\/code><\/pre>\n
\u5f53\u542f\u52a8\u65f6\uff0cGraphQL API\u4f1a\u81ea\u52a8\u6784\u5efa\u5e76\u8fdb\u5165\u53ef\u7528\u72b6\u6001\u3002\u7ec8\u7aef\u4f1a\u663e\u793a\u4e00\u4e9b\u4fe1\u606f\uff0c\u5176\u4e2d\u4e00\u4e2a\u662f\u5728\u201cGraphiQL GUI\/IDE\u201d\u4e2d\u663e\u793a\u7684URL\uff0c\u8be5URL\u53ef\u4ee5\u5728\u6d4f\u89c8\u5668\u4e0a\u8bd5\u7528GraphQL\u3002\u8bf7\u6253\u5f00\u8be5URL\uff0c\u5e76\u5c1d\u8bd5\u4f7f\u7528GraphQL\u3002<\/p>\n
\"\"<\/div>\n
\u8bd5\u7740\u4f7f\u7528\u5df2\u6784\u5efa\u7684GraphQL<\/h2>\n
\u6253\u5f00GraphiQL\u56fe\u5f62\u7528\u6237\u754c\u9762\/\u96c6\u6210\u5f00\u53d1\u73af\u5883\uff08GUI\/IDE\uff09\u540e\uff0c\u5c1d\u8bd5\u7f16\u5199\u4ee5\u4e0b\u67e5\u8be2\u3002<\/p>\n
query<\/span> GetPosts<\/span> {<\/span>\r\n  allPosts<\/span> {<\/span>\r\n    nodes<\/span> {<\/span>\r\n      id<\/span>\r\n      title<\/span>\r\n      body<\/span>\r\n      authorByAuthorId<\/span> {<\/span>\r\n        id<\/span>\r\n        name<\/span>\r\n      }<\/span>\r\n    }<\/span>\r\n  }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5f53\u6267\u884c\u6b64\u64cd\u4f5c\u65f6\uff0c\u5e94\u540c\u65f6\u83b7\u53d6posts\u8868\u7684\u5185\u5bb9\u4ee5\u53ca\u4e0eposts\u8868\u76f8\u5173\u8054\u7684authors\u8868\u7684\u6570\u636e\u3002<\/p>\n
\"\"<\/div>\n
\u4ee5\u4e0a\u306e\u624b\u9806\u3092\u7d4c\u3066\u3001PostGraphile\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u304b\u3089\u30b7\u30f3\u30d7\u30eb\u306aGraphQL API\u306e\u69cb\u7bc9\u307e\u3067\u5b8c\u4e86\u3057\u307e\u3057\u305f\u3002<\/p>\n
\u603b\u7ed3<\/h2>\n
    PostGraphile\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3001\u30b7\u30f3\u30d7\u30eb\u306aGraphQL API\u3092\u69cb\u7bc9\u3059\u308b\u307e\u3067\u306e\u624b\u9806\u3092\u8aac\u660e\u3057\u307e\u3057\u305f\u3002<\/ul>\n
    \u7ee7\u7eed<\/h2>\n
    \u8fd9\u7bc7\u5e16\u5b50\u53ea\u662f\u5199\u4e86\u4e00\u70b9\u5173\u4e8ePostGraphile\u7684\u5165\u95e8\u77e5\u8bc6\u3002\u5f53\u5b9e\u9645\u4f7f\u7528\u65f6\uff0c\u6211\u8ba4\u4e3a\u9700\u8981\u4e86\u89e3\u4ee5\u4e0b\u5185\u5bb9\uff0c\u6240\u4ee5\u63a5\u4e0b\u6765\u6211\u4f1a\u7ee7\u7eed\u5199\u4e0b\u53bb\u3002<\/p>\n
      \n
    • \n
        \u8a8d\u8a3c\u3068\u8a8d\u53ef\u306e\u3084\u308a\u304b\u305f<\/ul>\n<\/li>\n<\/ul>\n
         <\/p>\n
          \n
        • \n
            \u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u306e\u3084\u308a\u304b\u305f<\/ul>\n<\/li>\n<\/ul>\n
             <\/p>\n
              \u8907\u96d1\u306a\u691c\u7d22\u6761\u4ef6\u3092GraphQL\u3067\u4f7f\u3048\u308b\u3088\u3046\u306b\u3059\u308b\u65b9\u6cd5<\/ul>\n","protected":false},"excerpt":{"rendered":"
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