{"id":47814,"date":"2023-10-01T15:52:42","date_gmt":"2023-07-27T02:39:12","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90graphql%e3%80%91%e4%bd%bf%e7%94%a8apollo-server-v4%e5%92%8cprisma%ef%bc%8c%e5%9c%a8context%e4%b8%ad%e5%85%b1%e4%ba%ab%e6%95%b0%e6%8d%ae%e7%9a%84%e6%96%b9%e6%b3%95\/"},"modified":"2024-05-04T02:24:27","modified_gmt":"2024-05-03T18:24:27","slug":"%e3%80%90graphql%e3%80%91%e4%bd%bf%e7%94%a8apollo-server-v4%e5%92%8cprisma%ef%bc%8c%e5%9c%a8context%e4%b8%ad%e5%85%b1%e4%ba%ab%e6%95%b0%e6%8d%ae%e7%9a%84%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90graphql%e3%80%91%e4%bd%bf%e7%94%a8apollo-server-v4%e5%92%8cprisma%ef%bc%8c%e5%9c%a8context%e4%b8%ad%e5%85%b1%e4%ba%ab%e6%95%b0%e6%8d%ae%e7%9a%84%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u3010GraphQL\u3011\u4f7f\u7528Apollo Server v4\u548cPrisma\uff0c\u5728context\u4e2d\u5171\u4eab\u6570\u636e\u7684\u65b9\u6cd5"},"content":{"rendered":"

\u9996\u5148<\/h1>\n

\u5728\u5b66\u4e60GraphQL\u671f\u95f4\uff0c\u6211\u4f7f\u7528\u4e86Apollo Server\u7684v4\u7248\u672c\u3002\u7136\u800c\uff0c\u5728\u5b9e\u73b0context\u65f6\u9047\u5230\u4e86\u5f88\u591a\u56f0\u96be\uff0c\u4e14\u7f3a\u5c11\u76f8\u5173\u53c2\u8003\u6587\u732e\uff0c\u53ea\u80fd\u901a\u8fc7\u8bd5\u9519\u7684\u65b9\u5f0f\u6765\u6700\u7ec8\u5b9e\u73b0\u3002\u56e0\u6b64\uff0c\u6211\u51b3\u5b9a\u5c06\u8fd9\u7bc7\u6587\u7ae0\u4f5c\u4e3a\u5907\u5fd8\u5f55\u7559\u4e0b\u6765\uff0c\u4f9b\u4ed6\u4eba\u53c2\u8003\u3002<\/p>\n

\u5b9e\u65bd\u5185\u5bb9\u5982\u6807\u9898\u6240\u8ff0\uff0c\u4f7f\u7528Apollo Server\u7684context\u5728\u89e3\u6790\u5668\u548c\u63d2\u4ef6\u4e2d\u5171\u4eab\u6570\u636e\u3002<\/p>\n

\u6a21\u5f0f<\/h1>\n

\u9996\u5148\uff0c\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u8868\u5b9a\u4e49\u548c\u6a21\u5f0f\u3002<\/p>\n

Prisma\u6a21\u5f0f<\/h2>\n
\/\/<\/span> This<\/span> is<\/span> your<\/span> Prisma<\/span> schema<\/span> file,<\/span>\r\n\/\/<\/span> learn<\/span> more<\/span> about<\/span> it<\/span> in<\/span> the<\/span> docs:<\/span> https:\/\/pris<\/span>.<\/span>ly\/d\/prisma-schema<\/span>\r\n\r\ngenerator<\/span> client<\/span> {<\/span>\r\n  provider<\/span> =<\/span> \"prisma-client-js\"<\/span>\r\n}<\/span>\r\n\r\ndatasource<\/span> db<\/span> {<\/span>\r\n  provider<\/span> =<\/span> \"mysql\"<\/span>\r\n  url<\/span>      =<\/span> env<\/span>(<\/span>\"DATABASE_URL\"<\/span>)<\/span>\r\n}<\/span>\r\n\r\nmodel<\/span> Link<\/span> {<\/span>\r\n  id<\/span>          Int<\/span>      @id<\/span> @default<\/span>(<\/span>autoincrement<\/span>())<\/span>\r\n  createdAt<\/span>   DateTime<\/span> @default<\/span>(<\/span>now<\/span>())<\/span>\r\n  description<\/span> String<\/span>\r\n  url<\/span>         String<\/span>\r\n  user<\/span>        User?<\/span>    @relation<\/span>(<\/span>fields:<\/span> [<\/span>userId<\/span>]<\/span>,<\/span> references:<\/span> [<\/span>id<\/span>]<\/span>,<\/span> onDelete:<\/span> Cascade<\/span>)<\/span>\r\n  userId<\/span>      Int?<\/span>\r\n}<\/span>\r\n\r\nmodel<\/span> User<\/span> {<\/span>\r\n  id<\/span>       Int<\/span>    @id<\/span> @default<\/span>(<\/span>autoincrement<\/span>())<\/span>\r\n  name<\/span>     String<\/span>\r\n  email<\/span>    String<\/span> @unique<\/span>\r\n  password<\/span> String<\/span>\r\n  links<\/span>    Link<\/span>[]<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5728\u8fd9\u91cc\uff0c\u91cd\u8981\u7684\u662f\u5173\u7cfb\u90e8\u5206\uff0cLink\u6a21\u578b\u7684user\u5217\u548cUser\u6a21\u578b\u7684links\u5217\u3002<\/p>\n
\u5c06\u6b64\u5b9a\u4e49\u5e94\u7528\u5230GraphQL\u7684\u6a21\u5f0f\u5b9a\u4e49\u4e2d\u3002<\/p>\n
GraphQL\u6a21\u5f0f<\/h2>\n
type<\/span> Query<\/span> {<\/span>\r\n  feed<\/span>:<\/span> [<\/span>Link<\/span>]!<\/span>\r\n}<\/span>\r\n\r\ntype<\/span> Mutation<\/span> {<\/span>\r\n  post<\/span>(<\/span>url<\/span>:<\/span> String<\/span>!,<\/span> description<\/span>:<\/span> String<\/span>!):<\/span> Link<\/span>!<\/span>\r\n  signUp<\/span>(<\/span>email<\/span>:<\/span> String<\/span>!,<\/span> password<\/span>:<\/span> String<\/span>!,<\/span> name<\/span>:<\/span> String<\/span>!):<\/span> AuthPayload<\/span>\r\n  login<\/span>(<\/span>email<\/span>:<\/span> String<\/span>!,<\/span> password<\/span>:<\/span> String<\/span>!):<\/span> AuthPayload<\/span>\r\n}<\/span>\r\n\r\ntype<\/span> Link<\/span> {<\/span>\r\n  id<\/span>:<\/span> ID<\/span>!<\/span>\r\n  description<\/span>:<\/span> String<\/span>!<\/span>\r\n  url<\/span>:<\/span> String<\/span>!<\/span>\r\n  user<\/span>:<\/span> User<\/span>\r\n}<\/span>\r\n\r\ntype<\/span> User<\/span> {<\/span>\r\n  id<\/span>:<\/span> ID<\/span>!<\/span>\r\n  name<\/span>:<\/span> String<\/span>!<\/span>\r\n  email<\/span>:<\/span> String<\/span>!<\/span>\r\n  links<\/span>:<\/span> [<\/span>Link<\/span>!]!<\/span>\r\n}<\/span>\r\n\r\ntype<\/span> AuthPayload<\/span> {<\/span>\r\n  token<\/span>:<\/span> String<\/span>\r\n  user<\/span>:<\/span> User<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u89e3\u91ca\u8fd9\u4e00\u91cd\u8981\u70b9\u65f6\uff0c\u9996\u5148\u8981\u63d0\u5230\u7684\u662f\uff0c\u5728GraphQL\u7684\u6a21\u5f0f\u5b9a\u4e49\u4e2d\uff0c\u5b83\u4e0ePrisma\u7684\u6a21\u5f0f\u5b9a\u4e49\u4fdd\u6301\u4e00\u81f4\u6027\u3002<\/p>\n
\u67e5\u8be2\u548c\u53d8\u66f4<\/h3>\n
\u521d\u5b66\u8005\u4e13\u7528\u8bf4\u660e\u4e66<\/div>\n
\u5bf9\u4e8eGraphQL\u521d\u5b66\u8005\u7684\u89e3\u8bf4\u5982\u4e0b\uff0cQuery\u548cMutation\u5177\u4f53\u5982\u4e0b\u3002<\/p>\n
    \n
  • \n
      Query:SQL\u306eSELECT\u6587\u3001CRUD\u306eREAD\u306b\u3042\u305f\u308a\u3001\u30c7\u30fc\u30bf\u53d6\u5f97\u306b\u4f7f\u7528<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        \n
      • \n
          Mutation:SQL\u306eINSERT\u30fbUPDATE\u30fbDELETE\u6587\u3001CRUD\u306eREAD\u4ee5\u5916\u306b\u3042\u305f\u308a\u3001\u30c7\u30fc\u30bf\u306e\u8ffd\u52a0\u30fb\u5909\u66f4\u306b\u4f7f\u7528<\/ul>\n<\/li>\n<\/ul>\n
           <\/p>\n
            \u203b\u4ee5\u4e0b\u304c\u5bfe\u5fdc\u8868\u3067\u3059<\/ul>\n
            \n
            SQL\/RESTGraphQLSELECTQueryINSERTMutationUPDATEMutationDELETEMutation<\/div>\n<\/div>\n
            \u6b64\u5916\uff0c\u6211\u4eec\u5728Query\u548cMutation\u4e2d\u5b9a\u4e49\u4e86feed\u548cpost\u7b49\u5185\u5bb9\uff0c\u8fd9\u662f\u4e3a\u4e86\u5b9a\u4e49\u4e00\u4e2a\u540d\u4e3a”resolver”\u7684\u51fd\u6570\u7c7b\u578b\u3002<\/p>\n
            \u89e3\u51b3\u8005\u662f\u4ec0\u4e48\u610f\u601d\u3002<\/h3>\n
            \u89e3\u6c7a\u5668\u662f\u5c06\u4fe1\u606f\u8f93\u5165\u5230\u67e5\u8be2\u7c7b\u578b\u4e2d\u7684\u8fc7\u7a0b\u3002<\/div>\n
            \u7b80\u5355\u6765\u8bf4\uff0c\u5c31\u662f\u4e3a\u6a21\u5f0f\u5b9a\u4e49\u7684\u7c7b\u578b\u5b9a\u4e49\u5b9e\u9645\u7684\u503c\u548c\u64cd\u4f5c\u3002
            \n\u4f8b\u5982\uff0c\u67e5\u8be2\u89e3\u6790\u5668\u7684\u5b9a\u4e49\u5982\u4e0b\uff1a<\/p>\n
            export<\/span> const<\/span> feed<\/span> =<\/span> async <\/span>(<\/span>_<\/span>:<\/span> unknown<\/span>,<\/span> __<\/span>:<\/span> unknown<\/span>,<\/span> context<\/span>:<\/span> Context<\/span>)<\/span> =><\/span> {<\/span>\r\n  return<\/span> context<\/span>.<\/span>prisma<\/span>.<\/span>link<\/span>.<\/span>findMany<\/span>()<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
            \u7531\u4e8e\u6a21\u5f0f\u7684\u7c7b\u578b\u4fe1\u606f\u5982\u4e0b\uff0c\u56e0\u6b64\u5728\u89e3\u6790\u5668\u4e2d\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86feed\u51fd\u6570\uff0c\u5e76\u5c06Link\u4f5c\u4e3a\u6570\u7ec4\u8fd4\u56de\u3002<\/p>\n
            type<\/span> Query<\/span> {<\/span>\r\n  feed<\/span>:<\/span> [<\/span>Link<\/span>]!<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
            \u6362\u53e5\u8bdd\u8bf4\uff0c\u8fd9\u610f\u5473\u7740\u5728\u6a21\u5f0f\u4e2d\u5b9a\u4e49\u4e86\u51fd\u6570\u540d\uff08\u89e3\u6790\u5668\u7684\u540d\u79f0\uff09\u548c\u8fd4\u56de\u7c7b\u578b\u3002<\/p>\n
            \u7a81\u53d8\u4e5f\u662f\u4e00\u6837\u7684\u3002<\/p>\n
            const<\/span> APP_SECRET<\/span> =<\/span> process<\/span>.<\/span>env<\/span>.<\/span>APP_SECRET<\/span> as<\/span> string<\/span>\r\n\r\n\/\/ \u30e6\u30fc\u30b6\u30fc\u65b0\u898f\u767b\u9332<\/span>\r\nexport<\/span> const<\/span> singUp<\/span> =<\/span> async <\/span>(<\/span>\r\n  _<\/span>:<\/span> unknown<\/span>,<\/span>\r\n  args<\/span>:<\/span> {<\/span> email<\/span>:<\/span> string<\/span>;<\/span> password<\/span>:<\/span> string<\/span>;<\/span> name<\/span>:<\/span> string<\/span> },<\/span>\r\n  context<\/span>:<\/span> Context<\/span>\r\n)<\/span> =><\/span> {<\/span>\r\n  \/\/ \u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u8a2d\u5b9a<\/span>\r\n  const<\/span> password<\/span> =<\/span> await<\/span> bcrypt<\/span>.<\/span>hash<\/span>(<\/span>args<\/span>.<\/span>password<\/span>,<\/span> 10<\/span>)<\/span>\r\n\r\n  if <\/span>(<\/span>!<\/span>args<\/span>.<\/span>email<\/span> ||<\/span> !<\/span>password<\/span> ||<\/span> !<\/span>args<\/span>.<\/span>name<\/span>)<\/span> {<\/span>\r\n    throw<\/span> new<\/span> Error<\/span>(<\/span>'<\/span>Email\u3001Password or Name is required<\/span>'<\/span>)<\/span>\r\n  }<\/span>\r\n\r\n  \/\/ \u30e6\u30fc\u30b6\u30fc\u65b0\u898f\u4f5c\u6210<\/span>\r\n  const<\/span> user<\/span> =<\/span> await<\/span> context<\/span>.<\/span>prisma<\/span>.<\/span>user<\/span>.<\/span>create<\/span>({<\/span>\r\n    data<\/span>:<\/span> {<\/span>\r\n      ...<\/span>args<\/span>,<\/span>\r\n      password<\/span>,<\/span>\r\n    },<\/span>\r\n  })<\/span>\r\n\r\n  const<\/span> token<\/span> =<\/span> jwt<\/span>.<\/span>sign<\/span>({<\/span> userId<\/span>:<\/span> user<\/span>.<\/span>id<\/span> },<\/span> APP_SECRET<\/span>)<\/span>\r\n\r\n  if <\/span>(<\/span>!<\/span>token<\/span>)<\/span> {<\/span>\r\n    throw<\/span> new<\/span> Error<\/span>(<\/span>'<\/span>Token is required<\/span>'<\/span>)<\/span>\r\n  }<\/span>\r\n\r\n  return<\/span> {<\/span>\r\n    token<\/span>,<\/span>\r\n    user<\/span>,<\/span>\r\n  }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
            type<\/span> Mutation<\/span> {<\/span>\r\n  signUp<\/span>(<\/span>email<\/span>:<\/span> String<\/span>!,<\/span> password<\/span>:<\/span> String<\/span>!,<\/span> name<\/span>:<\/span> String<\/span>!):<\/span> AuthPayload<\/span>\r\n}<\/span>\r\n\r\ntype<\/span> User<\/span> {<\/span>\r\n  id<\/span>:<\/span> ID<\/span>!<\/span>\r\n  name<\/span>:<\/span> String<\/span>!<\/span>\r\n  email<\/span>:<\/span> String<\/span>!<\/span>\r\n  links<\/span>:<\/span> [<\/span>Link<\/span>!]!<\/span>\r\n}<\/span>\r\n\r\ntype<\/span> AuthPayload<\/span> {<\/span>\r\n  token<\/span>:<\/span> String<\/span>\r\n  user<\/span>:<\/span> User<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
            \u4ee5\u6ce8\u518c\u4e3a\u4f8b\uff0c\u63a5\u53d7\u53c2\u6570email\u3001password\u548cname\uff0c\u8fd4\u56de\u503c\u4e3aAuthPayload\uff0c\u5176\u4e2d\u5305\u542btoken\u548cuser\u3002\u7136\u540e\uff0c\u5728\u89e3\u6790\u5668\u4e2d\u8be6\u7ec6\u63cf\u8ff0\u5904\u7406\u8fc7\u7a0b\u3002<\/p>\n
            \u6709\u5173\u81ea\u5b9a\u4e49\u89e3\u6790\u5668\u7684\u5185\u5bb9<\/div>\n
            \u5728\u5148\u524d\u7684\u67b6\u6784\u5b9a\u4e49\u4e2d\uff0c\u4f3c\u4e4e\u53ea\u662f\u5b9e\u73b0\u4e86User\u7c7b\u578b\u548cLink\u7c7b\u578b\uff0c\u4f46\u662f\u8fd9\u4e9b\u7c7b\u578b\u7684user\u548clinks\u88ab\u5b9a\u4e49\u4e3a\u81ea\u5b9a\u4e49\u89e3\u6790\u5668\u3002
            \n\u6362\u53e5\u8bdd\u8bf4\uff0c\u5728Prisma\u7684\u67b6\u6784\u4e2d\uff0c\u867d\u7136\u6709\u5173\u7cfb\u5173\u7cfb\uff0c\u4f46\u5b9e\u9645\u4e0a\u8981\u6267\u884c\u8bf8\u5982\u83b7\u53d6\u4e0eUser\u76f8\u5173\u8054\u7684Link\u6570\u7ec4\u6570\u636e\u7b49\u64cd\u4f5c\uff0c\u9700\u8981\u89e3\u6790\u5668\u3002<\/p>\n
            \u5982\u6b64\u4e00\u4f86\uff0c\u9664\u4e86Query\u548cMutation\u4e4b\u5916\uff0c\u60a8\u4e5f\u53ef\u4ee5\u81ea\u884c\u5be6\u73fe\u89e3\u6790\u5668\u3002\u9019\u7a31\u70ba\u81ea\u5b9a\u7fa9\u89e3\u6790\u5668\u3002
            \n\uff08\u4ee5\u4e0b\u7684\u9023\u7d50\u88ab\u7a31\u70ba\u81ea\u5b9a\u7fa9\u89e3\u6790\u5668\uff09<\/p>\n
            type<\/span> User<\/span> {<\/span>\r\n  id<\/span>:<\/span> ID<\/span>!<\/span>\r\n  name<\/span>:<\/span> String<\/span>!<\/span>\r\n  email<\/span>:<\/span> String<\/span>!<\/span>\r\n  links<\/span>:<\/span> [<\/span>Link<\/span>!]!<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
            \u4e0b\u9762\u662f\u89e3\u51b3\u5668\u7684\u5904\u7406\u5185\u5bb9\u3002
            \n\u5176\u64cd\u4f5c\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u662f\u901a\u8fc7\u4e00\u4e2a\u6570\u7ec4\u83b7\u53d6\u4e0e\u7528\u6237\u76f8\u5173\u8054\u7684\u94fe\u63a5\u3002<\/p>\n
            \u5728\u53c2\u6570\u90e8\u5206\u6700\u663e\u8457\u7684\u7279\u5f81\u662fparent.id\uff0c\u8fd9\u53ef\u4ee5\u7528\u6765\u5904\u7406\u7531\u7236\u7ea7\u89e3\u6790\u5668\u8fd4\u56de\u7684\u5bf9\u8c61\u7684\u503c\u3002
            \n\u7b80\u800c\u8a00\u4e4b\uff0c\u5728Prisma\u4e2d\uff0cUser\u548cLink\u5efa\u7acb\u4e86\u5173\u7cfb\uff0c\u4f46\u662f\u7531\u4e8e\u7236\u8868\u662fUser\uff0c\u56e0\u6b64\u53ef\u83b7\u53d6\u7684\u6570\u636e\u5982\u4e0b\u6240\u793a\u3002
            \nparent.id = user.id<\/p>\n
            export<\/span> const<\/span> links<\/span> =<\/span> (<\/span>parent<\/span>:<\/span> {<\/span> id<\/span>:<\/span> any<\/span> },<\/span> __<\/span>:<\/span> unknown<\/span>,<\/span> context<\/span>:<\/span> Context<\/span>)<\/span> =><\/span> {<\/span>\r\n  return<\/span> context<\/span>.<\/span>prisma<\/span>.<\/span>user<\/span>\r\n    .<\/span>findUnique<\/span>({<\/span>\r\n      where<\/span>:<\/span> {<\/span> id<\/span>:<\/span> parent<\/span>.<\/span>id<\/span> },<\/span>\r\n    })<\/span>\r\n    .<\/span>links<\/span>()<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
            \u5173\u4e8e\u89e3\u6790\u5668\u7684\u53c2\u6570<\/h3>\n
            \u5728\u8fd9\u91cc\uff0c\u6211\u60f3\u89e3\u91ca\u4e00\u4e0b\u53c2\u6570\u3002\u4ee5\u4e0b\u56fe\u8868\u8868\u793a\u4e86\u6240\u6709\u5185\u5bb9\u3002\u8bf7\u81ea\u884c\u67e5\u627e\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n
            \n
            \u5f15\u6570\u89e3\u8aacparent\u89aa\u306e\u30ea\u30be\u30eb\u30d0\u30fc\u304c\u8fd4\u3059\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u5024args\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u6e21\u3055\u308c\u308b\u5024\uff08\u30d5\u30a9\u30fc\u30e0\u306e\u5165\u529b\u5024\u306a\u3069\uff09context\u30ea\u30af\u30a8\u30b9\u30c8\u5168\u4f53\u3067\u5171\u6709\u3055\u308c\u308b\u5024\uff08\u8a8d\u8a3c\u60c5\u5831\u3084DB\u63a5\u7d9a\u60c5\u5831\u306a\u3069\uff09info\u5b9f\u884c\u3055\u308c\u308b\u30af\u30a8\u30ea\u306b\u95a2\u3059\u308b\u8a73\u7d30\u60c5\u5831\uff08\u307b\u3068\u3093\u3069\u4f7f\u7528\u3057\u306a\u3044\uff09<\/div>\n<\/div>\n
            \u5728 Context \u4e2d\u5171\u4eab\u6570\u636e\u7684\u65b9\u6cd5<\/h1>\n
            \u5728\u524d\u63d0\u7684\u8bf4\u660e\u7ed3\u675f\u540e\uff0c\u63a5\u4e0b\u6765\u662f\u6b63\u9898\u3002
            \n\u6839\u636e\u4e4b\u524d\u63d0\u5230\u7684\u4e0a\u4e0b\u6587\uff0c\u5728\u53c2\u6570\u7684\u8bf4\u660e\u4e2d\u6211\u5c06\u89e3\u91ca\u5982\u4f55\u5171\u4eab\u6570\u636e\u3002<\/p>\n
            \u7531\u65bc\u5c0d\u65bc\u8655\u7406Apollo Server v4\u7cfb\u5217\u7684\u6587\u7ae0\u53ea\u6709\u5b98\u65b9\u6587\u6a94+\u4e00\u4e9b\u5176\u4ed6\u8cc7\u6e90\uff0c\u6240\u4ee5\u57fa\u672c\u4e0a\u662f\u4ee5\u5b98\u65b9\u6587\u6a94\u70ba\u57fa\u790e\u9032\u884c\u958b\u767c\u3002
            \n\u4ee5\u4e0b\u662f\u5be6\u73fe\u7a0b\u5f0f\u78bc\u3002<\/p>\n
            import<\/span> '<\/span>dotenv\/config<\/span>'<\/span>\r\n\r\nimport<\/span> {<\/span> ApolloServer<\/span> }<\/span> from<\/span> '<\/span>@apollo\/server<\/span>'<\/span>\r\nimport<\/span> {<\/span> startStandaloneServer<\/span> }<\/span> from<\/span> '<\/span>@apollo\/server\/standalone<\/span>'<\/span>\r\nimport<\/span> {<\/span> GraphQLFileLoader<\/span> }<\/span> from<\/span> '<\/span>@graphql-tools\/graphql-file-loader<\/span>'<\/span>\r\nimport<\/span> {<\/span> loadSchemaSync<\/span> }<\/span> from<\/span> '<\/span>@graphql-tools\/load<\/span>'<\/span>\r\nimport<\/span> {<\/span> addResolversToSchema<\/span> }<\/span> from<\/span> '<\/span>@graphql-tools\/schema<\/span>'<\/span>\r\nimport<\/span> {<\/span> PrismaClient<\/span> }<\/span> from<\/span> '<\/span>@prisma\/client<\/span>'<\/span>\r\nimport<\/span> {<\/span> join<\/span> }<\/span> from<\/span> '<\/span>path<\/span>'<\/span>\r\n\r\nimport<\/span> {<\/span> user<\/span> }<\/span> from<\/span> '<\/span>.\/resolvers\/Link<\/span>'<\/span>\r\nimport<\/span> {<\/span> login<\/span>,<\/span> post<\/span>,<\/span> singUp<\/span> }<\/span> from<\/span> '<\/span>.\/resolvers\/Mutation<\/span>'<\/span>\r\nimport<\/span> {<\/span> feed<\/span> }<\/span> from<\/span> '<\/span>.\/resolvers\/Query<\/span>'<\/span>\r\nimport<\/span> {<\/span> links<\/span> }<\/span> from<\/span> '<\/span>.\/resolvers\/User<\/span>'<\/span>\r\nimport<\/span> {<\/span> getUserId<\/span> }<\/span> from<\/span> '<\/span>.\/utils<\/span>'<\/span>\r\n\r\nconst<\/span> prisma<\/span> =<\/span> new<\/span> PrismaClient<\/span>()<\/span>\r\n\r\nconst<\/span> schema<\/span> =<\/span> loadSchemaSync<\/span>(<\/span>join<\/span>(<\/span>__dirname<\/span>,<\/span> '<\/span>.\/schema.graphql<\/span>'<\/span>),<\/span> {<\/span>\r\n  loaders<\/span>:<\/span> [<\/span>new<\/span> GraphQLFileLoader<\/span>()],<\/span>\r\n})<\/span>\r\n\r\n\/\/ \u30ea\u30be\u30eb\u30d0\u30fc\u95a2\u6570<\/span>\r\nconst<\/span> resolvers<\/span> =<\/span> {<\/span>\r\n  Query<\/span>:<\/span> {<\/span>\r\n    feed<\/span>:<\/span> feed<\/span>,<\/span>\r\n  },<\/span>\r\n\r\n  Mutation<\/span>:<\/span> {<\/span>\r\n    signUp<\/span>:<\/span> singUp<\/span>,<\/span>\r\n    login<\/span>:<\/span> login<\/span>,<\/span>\r\n    post<\/span>:<\/span> post<\/span>,<\/span>\r\n  },<\/span>\r\n\r\n  Link<\/span>:<\/span> {<\/span>\r\n    user<\/span>:<\/span> user<\/span>,<\/span>\r\n  },<\/span>\r\n\r\n  User<\/span>:<\/span> {<\/span>\r\n    links<\/span>:<\/span> links<\/span>,<\/span>\r\n  },<\/span>\r\n}<\/span>\r\n\r\nconst<\/span> schemaWithResolvers<\/span> =<\/span> addResolversToSchema<\/span>({<\/span> schema<\/span>,<\/span> resolvers<\/span> })<\/span>\r\nconst<\/span> server<\/span> =<\/span> new<\/span> ApolloServer<\/span>({<\/span>\r\n  schema<\/span>:<\/span> schemaWithResolvers<\/span>,<\/span>\r\n})<\/span>\r\n\r\nconst<\/span> startServer<\/span> =<\/span> async <\/span>()<\/span> =><\/span> {<\/span>\r\n  const<\/span> {<\/span> url<\/span> }<\/span> =<\/span> await<\/span> startStandaloneServer<\/span>(<\/span>server<\/span>,<\/span> {<\/span>\r\n    context<\/span>:<\/span> async <\/span>({<\/span> req<\/span> })<\/span> =><\/span> ({<\/span>\r\n      ...<\/span>req<\/span>,<\/span>\r\n      prisma<\/span>,<\/span>\r\n      userId<\/span>:<\/span> req<\/span> &&<\/span> req<\/span>.<\/span>headers<\/span>.<\/span>authorization<\/span> ?<\/span> getUserId<\/span>(<\/span>req<\/span>)<\/span> :<\/span> null<\/span>,<\/span>\r\n    }),<\/span>\r\n    listen<\/span>:<\/span> {<\/span> port<\/span>:<\/span> 4000<\/span> },<\/span>\r\n  })<\/span>\r\n  console<\/span>.<\/span>log<\/span>(<\/span>`?  Server ready at: <\/span>${<\/span>url<\/span>}<\/span>`<\/span>)<\/span>\r\n}<\/span>\r\n\r\nstartServer<\/span>()<\/span>\r\n<\/code><\/pre>\n
            \u4ee5\u4e0b\u662f\u4e0a\u4e0b\u6587\u7684\u5b9e\u73b0\u90e8\u5206\u3002<\/p>\n
            const<\/span> startServer<\/span> =<\/span> async <\/span>()<\/span> =><\/span> {<\/span>\r\n  const<\/span> {<\/span> url<\/span> }<\/span> =<\/span> await<\/span> startStandaloneServer<\/span>(<\/span>server<\/span>,<\/span> {<\/span>\r\n    context<\/span>:<\/span> async <\/span>({<\/span> req<\/span> })<\/span> =><\/span> ({<\/span>\r\n      ...<\/span>req<\/span>,<\/span>\r\n      prisma<\/span>,<\/span>\r\n      userId<\/span>:<\/span> req<\/span> &&<\/span> req<\/span>.<\/span>headers<\/span>.<\/span>authorization<\/span> ?<\/span> getUserId<\/span>(<\/span>req<\/span>)<\/span> :<\/span> null<\/span>,<\/span>\r\n    }),<\/span>\r\n    listen<\/span>:<\/span> {<\/span> port<\/span>:<\/span> 4000<\/span> },<\/span>\r\n  })<\/span>\r\n  console<\/span>.<\/span>log<\/span>(<\/span>`?  Server ready at: <\/span>${<\/span>url<\/span>}<\/span>`<\/span>)<\/span>\r\n<\/code><\/pre>\n
            \u6839\u636e\u516c\u5f0f\uff0cContext\u7684\u4f5c\u7528\u5982\u4e0b\u3002<\/p>\n
            \u901a\u8fc7\u5728GraphQL\u64cd\u4f5c\u4e2d\u521b\u5efa\u4e00\u4e2a\u540d\u4e3acontextValue\u7684\u5bf9\u8c61\uff0c\u53ef\u4ee5\u5728\u670d\u52a1\u5668\u7684\u89e3\u6790\u5668\u548c\u63d2\u4ef6\u4e4b\u95f4\u5171\u4eab\u6570\u636e\u3002
            \n\u901a\u8fc7contextValue\uff0c\u53ef\u4ee5\u4f20\u9012\u7ed9\u89e3\u6790\u5668\u6240\u9700\u7684\u4fbf\u5229\u9879\uff0c\u5982\u8eab\u4efd\u9a8c\u8bc1\u8303\u56f4\u3001\u83b7\u53d6\u6570\u636e\u7684\u6e90\u3001\u6570\u636e\u5e93\u8fde\u63a5\u3001\u81ea\u5b9a\u4e49\u83b7\u53d6\u51fd\u6570\u7b49\u3002\u5982\u679c\u4f7f\u7528\u6570\u636e\u52a0\u8f7d\u5668\u5728\u89e3\u6790\u5668\u4e4b\u95f4\u8fdb\u884c\u8bf7\u6c42\u6279\u5904\u7406\uff0c\u8fd8\u53ef\u4ee5\u5c06\u6570\u636e\u52a0\u8f7d\u5668\u9644\u52a0\u5230\u5171\u4eab\u7684contextValue\u4e0a\u3002
            \n\u4e0a\u4e0b\u6587\u51fd\u6570\u662f\u5f02\u6b65\u7684\uff0c\u5fc5\u987b\u8fd4\u56de\u4e00\u4e2a\u5bf9\u8c61\u3002\u901a\u8fc7\u4f7f\u7528\u540d\u4e3acontextValue\u7684\u540d\u79f0\uff0c\u53ef\u4ee5\u8bbf\u95ee\u670d\u52a1\u5668\u7684\u89e3\u6790\u5668\u548c\u63d2\u4ef6\u4e2d\u7684\u8fd9\u4e2a\u5bf9\u8c61\u3002
            \n\u53ef\u4ee5\u5c06\u4e0a\u4e0b\u6587\u51fd\u6570\u4f20\u9012\u7ed9\u9009\u62e9\u7684\u96c6\u6210\u51fd\u6570\uff08\u5982expressMiddleware\u6216startStandaloneServer\uff09\u3002
            \n\u670d\u52a1\u5668\u6bcf\u4e2a\u8bf7\u6c42\u8c03\u7528\u4e00\u6b21\u4e0a\u4e0b\u6587\u51fd\u6570\uff0c\u5e76\u4f7f\u7528\u6bcf\u4e2a\u8bf7\u6c42\u7684\u8be6\u7ec6\u4fe1\u606f\uff08\u5982HTTP\u5934\uff09\u6765\u5b9a\u5236contextValue\u3002<\/p><\/blockquote>\n
            \u901a\u5e38\u60c5\u51b5\u4e0b\uff0c\u901a\u8fc7\u5c06Context\u4f20\u9012\u7ed9startStandaloneServer\u7b49\u96c6\u6210\u51fd\u6570\uff0c\u53ef\u4ee5\u5728\u89e3\u6790\u5668\u548c\u63d2\u4ef6\u4e4b\u95f4\u5171\u4eab\u89e3\u6790\u5668\u6240\u9700\u7684\u8ba4\u8bc1\u4fe1\u606f\u548c\u5176\u4ed6\u5fc5\u8981\u4fe1\u606f\u3002<\/p>\n
            \u53e6\u5916\uff0c\u8fd8\u9700\u8981\u6ee1\u8db3\u4ee5\u4e0b\u4e24\u4e2a\u8981\u6c42\u3002<\/p>\n
              \n
            • \n
                \u975e\u540c\u671f\u3067\u5b9f\u88c5\u3059\u308b\u5fc5\u8981<\/ul>\n<\/li>\n<\/ul>\n
                 <\/p>\n
                  \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u8fd4\u3059\u5fc5\u8981\u304c\u3042\u308b<\/ul>\n
                  \u6362\u53e5\u8bdd\u8bf4\uff0c\u6211\u7684\u5b9e\u73b0\u610f\u5473\u7740\u4ee5\u4e0b\u5185\u5bb9\u53ef\u4ee5\u5728\u6574\u4e2a\u89e3\u6790\u5668\u4e2d\u5171\u4eab\u3002<\/p>\n
                    \n
                  • \n
                      req:\u30ea\u30af\u30a8\u30b9\u30c8\u60c5\u5831<\/ul>\n<\/li>\n<\/ul>\n
                       <\/p>\n
                        \n
                      • \n
                          prisma: prismaClient\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9<\/ul>\n<\/li>\n<\/ul>\n
                           <\/p>\n
                            userId: \u8a8d\u8a3c\u60c5\u5831\uff08\u30e6\u30fc\u30b6\u30fcID\u304b\u3089\u30c8\u30fc\u30af\u30f3\u3092\u751f\u6210\u3059\u308b\u305f\u3081userId\u304c\u8a8d\u8a3c\u60c5\u5831\u3068\u306a\u308b\uff09<\/ul>\n
                            \u4e0a\u4e0b\u6587\u7684\u4f7f\u7528\u4f8b<\/h2>\n
                            \u8ba9\u6211\u4eec\u6765\u770b\u4e00\u4e2a\u6295\u7a3fAPI\u5b9e\u73b0\u7684\u771f\u5b9e\u4f8b\u5b50\u4f5c\u4e3a\u53c2\u8003\u3002<\/p>\n
                            export<\/span> const<\/span> post<\/span> =<\/span> async <\/span>(<\/span>\r\n  _<\/span>:<\/span> unknown<\/span>,<\/span>\r\n  args<\/span>:<\/span> {<\/span> description<\/span>:<\/span> string<\/span>;<\/span> url<\/span>:<\/span> string<\/span> },<\/span>\r\n  context<\/span>:<\/span> Context<\/span>\r\n)<\/span> =><\/span> {<\/span>\r\n  const<\/span> {<\/span> userId<\/span> }<\/span> =<\/span> context<\/span>\r\n\r\n  const<\/span> newLink<\/span> =<\/span> await<\/span> context<\/span>.<\/span>prisma<\/span>.<\/span>link<\/span>.<\/span>create<\/span>({<\/span>\r\n    data<\/span>:<\/span> {<\/span>\r\n      url<\/span>:<\/span> args<\/span>.<\/span>url<\/span>,<\/span>\r\n      description<\/span>:<\/span> args<\/span>.<\/span>description<\/span>,<\/span>\r\n      user<\/span>:<\/span> {<\/span> connect<\/span>:<\/span> {<\/span> id<\/span>:<\/span> userId<\/span> }<\/span> },<\/span>\r\n    },<\/span>\r\n  })<\/span>\r\n\r\n  return<\/span> newLink<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                            \u4ee5\u4e0b\u662fContext\u7684\u7c7b\u578b\u5b89\u6392\u3002<\/p>\n
                            import<\/span> type<\/span> {<\/span> Prisma<\/span>,<\/span> PrismaClient<\/span> }<\/span> from<\/span> '<\/span>@prisma\/client<\/span>'<\/span>\r\nimport<\/span> type<\/span> {<\/span> DefaultArgs<\/span> }<\/span> from<\/span> '<\/span>@prisma\/client\/runtime<\/span>'<\/span>\r\n\r\nexport<\/span> type<\/span> Context<\/span> =<\/span> {<\/span>\r\n  prisma<\/span>:<\/span> PrismaClient<\/span><<\/span>\r\n    Prisma<\/span>.<\/span>PrismaClientOptions<\/span>,<\/span>\r\n    never<\/span>,<\/span>\r\n    Prisma<\/span>.<\/span>RejectOnNotFound<\/span> |<\/span> Prisma<\/span>.<\/span>RejectPerOperation<\/span> |<\/span> undefined<\/span>,<\/span>\r\n    DefaultArgs<\/span>\r\n  ><\/span>\r\n  userId<\/span>:<\/span> number<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                            \u4f7f\u7528\u4e0a\u4e0b\u6587context\u7684\u5730\u65b9\u5206\u4e3a\u4e24\u90e8\u5206\uff1a\u7528\u6237Id\u7684\u89e3\u6784\u8d4b\u503c\u548ccontext.prisma\u90e8\u5206\u3002\u901a\u8fc7\u8fd9\u6837\u505a\uff0c\u53ef\u4ee5\u5728\u5176\u4ed6\u89e3\u6790\u5668\u51fd\u6570\u4e2d\u540c\u6837\u4f7f\u7528context.prisma.\u65b9\u6cd5\u8fdb\u884c\u5b9e\u73b0\u3002\u597d\u5904\u5305\u62ec\u51cf\u5c11\u4e86\u8ba4\u8bc1\u5b9e\u73b0\u548cPrismaClient\u5b9e\u4f8b\u5316\u7684\u5de5\u4f5c\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u4ee3\u7801\u91cf\u548c\u5185\u5b58\u4f7f\u7528\u91cf\u7b49\u3002<\/p>\n
                            \u987a\u4fbf\u8bf4\u4e00\u53e5\uff0c\u5173\u4e8e “user: { connect: { id: userId } }” \u8fd9\u90e8\u5206\uff0cPrisma\u4e2d\u7684Link\u548cUser\u5efa\u7acb\u4e86\u5173\u8054\u3002\u8fd9\u4e2a\u63cf\u8ff0\u8868\u793a\u4e86\u5b83\u4eec\u4e4b\u95f4\u7684\u5173\u7cfb\u3002<\/p>\n
                            \u901a\u8fc7\u4f7f\u7528connect\u9009\u9879\uff0c\u60a8\u53ef\u4ee5\u5c06\u73b0\u6709\u7684User\u8bb0\u5f55\uff08\u73b0\u6709\u7528\u6237\uff09\u4e0eLink\u8bb0\u5f55\uff08\u5728\u6b64\u5904\u662f\u65b0\u5efa\u7684Link\uff09\u5173\u8054\u8d77\u6765\u3002\u952e\u503c\u5bf9\u5e94\u4e8euserId\uff0c\u56e0\u6b64\u8bf7\u4f7f\u7528{ id: userId }\u3002
                            \n\u8fd9\u662f\u4e00\u4e2a\u5e38\u89c1\u7684\u8bef\u89e3\uff1a\u201c\u4e3a\u4ec0\u4e48\u662f`{ id: userId }`\u800c\u4e0d\u662fLink\u7684ID\uff1f\u201d
                            \n\u7531\u4e8e\u6700\u521d\u6307\u5b9a\u4e86user: {connect: \u30fb\u30fb\u30fb}\uff0c\u6240\u4ee5{ id: userId }\u662f\u6b63\u786e\u7684\u3002<\/p>\n
                            \u6700\u540e<\/h1>\n
                            \u6700\u540e\u8877\u5fc3\u5efa\u8bae\uff0c\u8bf7\u52a1\u5fc5\u6ce8\u610f\u516c\u5f0f\u65b9\u9762\u7684\u4fe1\u606f\u66f4\u52a0\u51c6\u786e\u3002\u5173\u4e8e\u201c\u53c2\u8003\u6587\u732e\u201d\u7ae0\u8282\u4e2d\u7684\u201c\u80cc\u666f\u548c\u80cc\u666f\u503c\u201d\uff0c\u8bf7\u53c2\u9605\u5b98\u65b9\u6587\u6863\uff0c\u6709\u5174\u8da3\u7684\u8bdd\u4e5f\u53ef\u4ee5\u4e00\u8d77\u67e5\u9605\u3002<\/p>\n
                            \u8bf7\u63d0\u4f9b\u76f8\u5173\u6587\u732e\u3002<\/h1>\n
                            \u4e0a\u4e0b\u6587\u548c\u4e0a\u4e0b\u6587\u503c
                            \n\u4f7f\u7528Apollo Server v4\u3001Next.js\u3001Prisma\u6765\u8bbe\u7f6eGraphQL<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"
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