{"id":47870,"date":"2023-09-13T05:28:13","date_gmt":"2023-01-18T01:51:21","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8nestjs%e5%92%8cprisma%e6%9e%84%e5%bb%bagraphql%e6%9c%8d%e5%8a%a1%e5%99%a8\/"},"modified":"2024-05-03T23:31:12","modified_gmt":"2024-05-03T15:31:12","slug":"%e4%bd%bf%e7%94%a8nestjs%e5%92%8cprisma%e6%9e%84%e5%bb%bagraphql%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%a8nestjs%e5%92%8cprisma%e6%9e%84%e5%bb%bagraphql%e6%9c%8d%e5%8a%a1%e5%99%a8\/","title":{"rendered":"\u4f7f\u7528NestJS\u548cPrisma\u6784\u5efaGraphQL\u670d\u52a1\u5668"},"content":{"rendered":"

\u7b80\u8ff0<\/h2>\n

\u4f7f\u7528Node.js\u7684\u540e\u7aef\u6846\u67b6NestJS\u548cTypeScript\u7684ORMPrisma\u6765\u521b\u5efaGraphQL\u670d\u52a1\u5668\u3002
\n\u987a\u4fbf\u8bf4\u4e00\u4e0b\uff0cPrisma\u4e5f\u53ef\u4ee5\u7528\u4e8e\u6784\u5efaREST API\uff0c\u5b83\u5e76\u4e0d\u7279\u5316\u4e8eGraphQL\u3002
\n\u7136\u800c\uff0cPrisma\u6a21\u5f0f\u5b9a\u4e49\u7684\u7ed3\u6784\u975e\u5e38\u63a5\u8fd1GraphQL\u7684SDL\uff08Schema Definition Language = Schema\u5b9a\u4e49\u8bed\u8a00\uff09\uff0c\u800c\u4e14Prisma Client\u53ef\u4ee5\u8986\u76d6GraphQL\u7684\u590d\u6742\u6027\uff0c\u56e0\u6b64\u6211\u8ba4\u4e3a\u5b83\u4e0eGraphQL\u7684\u517c\u5bb9\u6027\u975e\u5e38\u9ad8\u3002<\/p>\n

\u5f15\u5165\u6b65\u9aa4<\/h2>\n

\u7531\u4e8eNestJS\u7684\u6587\u6863\u4e2d\u5206\u522b\u5305\u542b\u4e86Prisma\u548cGraphQL\u7684\u5185\u5bb9\uff0c\u6240\u4ee5\u6211\u4eec\u57fa\u672c\u4e0a\u4f1a\u6309\u7167\u8fd9\u4e9b\u5185\u5bb9\u8fdb\u884c\u8fdb\u5c55\u3002
\n\u94fe\u63a5\uff1a
\nPrisma\uff1ahttps:\/\/docs.nestjs.com\/recipes\/prisma
\nGraphQL\uff1ahttps:\/\/docs.nestjs.com\/graphql\/quick-start<\/p>\n

\u5b89\u88c5NestJS CLI<\/h3>\n
$ npm i -g @nestjs\/cli\r\n<\/code><\/pre>\n
\u521b\u5efa\u4e00\u4e2aNestJS\u9879\u76ee<\/h3>\n
$ nest new my-app\r\n<\/code><\/pre>\n
\u5b89\u88c5Prisma CLI\u548cPrisma Client\u3002<\/h3>\n
$ cd my-app\r\n$ npm install @prisma\/client\r\n$ npm install --save-dev prisma\r\n<\/code><\/pre>\n
4. Prisma\u7684\u914d\u7f6e<\/h3>\n
$ npx prisma init\r\n<\/code><\/pre>\n
\u5f53\u6267\u884c\u6b64\u547d\u4ee4\u65f6\uff0c\u5c06\u5728\u6839\u76ee\u5f55\u4e0b\u751f\u6210prisma\/schema.prisma\u548c.env\u6587\u4ef6\u3002<\/p>\n
\u4e0e\u6570\u636e\u5e93\u5efa\u7acb\u8fde\u63a5<\/h3>\n
\u6839\u636e\u81ea\u5df1\u51c6\u5907\u7684\u6570\u636e\u5e93\u7f16\u8f91prisma\/schema.prisma\u548c.env\u6587\u4ef6\u3002\u6211\u81ea\u5df1\u662f\u4f7f\u7528Docker\u642d\u5efa\u4e86\u4e00\u4e2aMysql\u5bb9\u5668\uff0c\u6240\u4ee5\u914d\u7f6e\u5982\u4e0b\u6240\u793a\u3002<\/p>\n
datasource db {\r\n  provider = \"mysql\"\r\n  url      = env(\"DATABASE_URL\")\r\n}\r\n\r\ngenerator client {\r\n  provider = \"prisma-client-js\"\r\n}\r\n<\/code><\/pre>\n
DATABASE_URL=\"mysql:\/\/root:password@db\/development\"\r\n<\/code><\/pre>\n
\u203b@\u540e\u9762\u7684db\u662f\u5bb9\u5668\u540d\u3002
\n\u203bdevelopment\u662f\u8868\u540d\uff0c\u53ef\u4ee5\u968f\u610f\u66f4\u6539\u4e3a\u5176\u4ed6\u5408\u9002\u7684\u540d\u79f0\uff0c\u6ca1\u6709\u95ee\u9898\u3002<\/p>\n
version<\/span>:<\/span> '<\/span>3.8'<\/span>\r\nservices<\/span>:<\/span>\r\n  server<\/span>:<\/span>\r\n    build<\/span>:<\/span> .<\/span>\r\n    volumes<\/span>:<\/span>\r\n      -<\/span> .\/:\/usr\/app<\/span>\r\n    ports<\/span>:<\/span>\r\n      -<\/span> '<\/span>3000:3000'<\/span>\r\n    tty<\/span>:<\/span> true<\/span>\r\n    depends_on<\/span>:<\/span>\r\n      -<\/span> db<\/span>\r\n  db<\/span>:<\/span>\r\n    image<\/span>:<\/span> mysql:8.0<\/span>\r\n    environment<\/span>:<\/span>\r\n      MYSQL_ROOT_PASSWORD<\/span>:<\/span> password<\/span>\r\n    ports<\/span>:<\/span>\r\n      -<\/span> '<\/span>3306:3306'<\/span>\r\n    command<\/span>:<\/span> --default-authentication-plugin=mysql_native_password<\/span>\r\n    volumes<\/span>:<\/span>\r\n      -<\/span> .\/prisma\/mysql:\/var\/lib\/mysql<\/span>\r\n\r\n<\/code><\/pre>\n
\u6309\u7167\u516c\u5f0f\u6587\u4ef6\u6240\u8ff0\uff0c\u5982\u679c\u60f3\u8981\u5feb\u901f\u6267\u884c\uff0c\u4f7f\u7528SQLite\u662f\u6700\u7b80\u4fbf\u7684\u65b9\u6cd5\u3002<\/p>\n
datasource db {\r\n  provider = \"sqlite\"\r\n  url      = env(\"DATABASE_URL\")\r\n}\r\n\r\ngenerator client {\r\n  provider = \"prisma-client-js\"\r\n}\r\n<\/code><\/pre>\n
DATABASE_URL=\"file:.\/dev.db\"\r\n<\/code><\/pre>\n
6. \u5b9a\u4e49\u67b6\u6784<\/h3>\n
\u5728schema.prisma\u4e2d\u5b9a\u4e49\u6a21\u5f0f\u3002\u8fd9\u91cc\u4ee5\u521b\u5efa\u4e00\u4e2a\u540d\u4e3aUser\u7684\u793a\u4f8b\u4e3a\u4f8b\u3002<\/p>\n
(\u2191\u306b\u8ffd\u52a0)\r\nmodel User {    \r\n  id Int @id @default(autoincrement())  \r\n  registeredAt DateTime?    \r\n  updatedAt DateTime?   \r\n  email String? \r\n  name String   \r\n} \r\n<\/code><\/pre>\n
7. \u5c06\u67b6\u6784\u5e94\u7528\u4e8e\u6570\u636e\u5e93\u3002<\/h3>\n
\u5c06\u5728\u7b2c6\u6b65\u4e2d\u5b9a\u4e49\u7684\u6a21\u5f0f\u5e94\u7528\u5230\u6570\u636e\u5e93\u4e2d\u6709\u4e24\u79cd\u65b9\u6cd5\u3002<\/p>\n
Create migrations from your Prisma schema, apply them to the database, generate artifacts (e.g. Prisma Client)\r\n  $ prisma migrate dev --preview-feature\r\n\r\n  Push the Prisma schema state to the database\r\n  $ prisma db push --preview-feature\r\n<\/code><\/pre>\n
\u5982\u679c\u6267\u884c\u8fc1\u79fb\u547d\u4ee4migrate\uff0c\u5c06\u5728prisma\u76ee\u5f55\u4e0b\u751f\u6210\u4e00\u4e2amigrations\u76ee\u5f55\uff0c\u5e76\u5728\u5176\u4e2d\u4e3a\u6bcf\u4e2a\u8fc1\u79fb\u751f\u6210\u4e00\u4e2a\u5355\u72ec\u7684\u76ee\u5f55\u3002
\nmigration.sql\u6587\u4ef6\u4e2d\u5305\u542b\u4e86\u7528\u4e8e\u5e94\u7528\u67b6\u6784\u7684SQL\u8bed\u53e5\u3002
\nmigrate\u8fd8\u63d0\u4f9b\u4e86\u5176\u4ed6\u547d\u4ee4\uff0c\u5982reset\u548cstatus\uff0c\u8bf7\u8be6\u89c1\u4ee5\u4e0b\u94fe\u63a5\uff1a
\nhttps:\/\/www.prisma.io\/docs\/reference\/api-reference\/command-reference#prisma-migrate-preview<\/p>\n
\u251c\u2500\u2500 prisma\r\n\u2502\u00a0\u00a0 \u251c\u2500\u2500 migrations\r\n\u2502\u00a0\u00a0 \u2502\u00a0\u00a0 \u2514\u2500\u2500 20201220094108_\r\n\u2502\u00a0\u00a0 \u2502\u00a0\u00a0     \u2514\u2500\u2500 migration.sql\r\n<\/code><\/pre>\n
\u5982\u679c\u6267\u884cdb push\uff0c\u5c06\u76f4\u63a5\u5c06\u6a21\u5f0f\u5e94\u7528\u5230\u6570\u636e\u5e93\u4e2d\uff0c\u800c\u4e0d\u4f1a\u751f\u6210\u4efb\u4f55\u6587\u4ef6\u3002
\n\u8003\u8651\u5230rails\u4e2d\u66f4 commonly preferred ridgepole\u800c\u4e0d\u662fmigration\uff0c\u4e2a\u4eba\u89c9\u5f97\u53ef\u4ee5\u4f7f\u7528db push\u3002<\/p>\n
\u521b\u5efa\u4e00\u4e2a\u5904\u7406PrismaClient\u7684PrismaService\u3002<\/h3>\n
\u4e3a\u4e86\u4f7f\u7528NestJS\u5904\u7406Prisma Client API\uff0c\u6211\u4eec\u5c06\u5728src\u6587\u4ef6\u5939\u4e2d\u521b\u5efaprisma.service.ts\u3002<\/p>\n
import<\/span> {<\/span> Injectable<\/span>,<\/span> OnModuleInit<\/span>,<\/span> OnModuleDestroy<\/span> }<\/span> from<\/span> '<\/span>@nestjs\/common<\/span>'<\/span>;<\/span>\r\nimport<\/span> {<\/span> PrismaClient<\/span> }<\/span> from<\/span> '<\/span>@prisma\/client<\/span>'<\/span>;<\/span>\r\n\r\n@<\/span>Injectable<\/span>()<\/span>\r\nexport<\/span> class<\/span> PrismaService<\/span> extends<\/span> PrismaClient<\/span>\r\n  implements<\/span> OnModuleInit<\/span>,<\/span> OnModuleDestroy<\/span> {<\/span>\r\n  async<\/span> onModuleInit<\/span>()<\/span> {<\/span>\r\n    await<\/span> this<\/span>.<\/span>$connect<\/span>();<\/span>\r\n  }<\/span>\r\n\r\n  async<\/span> onModuleDestroy<\/span>()<\/span> {<\/span>\r\n    await<\/span> this<\/span>.<\/span>$disconnect<\/span>();<\/span>\r\n  }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5b89\u88c5\u4e0eGraphQL\u76f8\u5173\u7684\u5305\u3002<\/h3>\n
npm i @nestjs\/graphql graphql-tools graphql apollo-server-express\r\n<\/code><\/pre>\n
\u5982\u679c\u4f7f\u7528Fastify\uff0c\u8bf7\u5b89\u88c5apollo-server-fastify\u6765\u66ff\u4ee3apollo-server-express\u3002\u53e6\u5916\uff0c\u5728src\/main.ts\u7684app\u5904\u5c06Fastify\u8fdb\u884c\u66ff\u6362\u3002<\/p>\n
const<\/span> app<\/span> =<\/span> await<\/span> NestFactory<\/span>.<\/span>create<\/span><<\/span>NestFastifyApplication<\/span>><\/span>(<\/span>\r\n    AppModule<\/span>,<\/span>\r\n    new<\/span> FastifyAdapter<\/span>(),<\/span>\r\n  );<\/span>\r\n<\/code><\/pre>\n
\u521b\u5efa\u5bf9\u8c61\u7c7b\u578b\u548c\u89e3\u6790\u5668\u3002<\/h3>\n
GraphQL\u7684\u5b9e\u73b0\u6709\u4e24\u79cd\u65b9\u6cd5\uff1aCode first\u548cSchema first\u3002\u8fd9\u6b21\u6211\u4eec\u4f7f\u7528\u4e86\u4ece\u4ee3\u7801\u521b\u5efa\u6a21\u5f0f\u7684Code first\u65b9\u6cd5\u3002<\/p>\n
import<\/span> {<\/span> ObjectType<\/span>,<\/span> Field<\/span>,<\/span> Int<\/span>,<\/span> HideField<\/span> }<\/span> from<\/span> '<\/span>@nestjs\/graphql<\/span>'<\/span>;<\/span>    \r\n\r\n@<\/span>ObjectType<\/span>()<\/span>   \r\nexport<\/span> class<\/span> User<\/span> {<\/span> \r\n  @<\/span>Field<\/span>((<\/span>type<\/span>)<\/span> =><\/span> Int<\/span>)<\/span> \r\n  id<\/span>:<\/span> number<\/span>;<\/span>   \r\n  @<\/span>Field<\/span>({<\/span> name<\/span>:<\/span> '<\/span>registeredAt<\/span>'<\/span> })<\/span>  \r\n  createdAt<\/span>?:<\/span> Date<\/span>;<\/span> \r\n  updatedAt<\/span>?:<\/span> Date<\/span>;<\/span> \r\n  email<\/span>:<\/span> string<\/span>;<\/span>    \r\n  @<\/span>HideField<\/span>()<\/span>  \r\n  password<\/span>:<\/span> string<\/span>;<\/span> \r\n  name<\/span>?:<\/span> string<\/span>;<\/span>    \r\n}<\/span>\r\n<\/code><\/pre>\n
import<\/span> {<\/span> Resolver<\/span>,<\/span> Query<\/span> }<\/span> from<\/span> '<\/span>@nestjs\/graphql<\/span>'<\/span>;<\/span>  \r\nimport<\/span> {<\/span> User<\/span> }<\/span> from<\/span> '<\/span>..\/models\/user.model<\/span>'<\/span>;<\/span>    \r\nimport<\/span> {<\/span> PrismaService<\/span> }<\/span> from<\/span> '<\/span>..\/prisma.service<\/span>'<\/span>;<\/span>  \r\n\r\n@<\/span>Resolver<\/span>((<\/span>of<\/span>)<\/span> =><\/span> User<\/span>)<\/span> \r\nexport<\/span> class<\/span> UserResolver<\/span> {<\/span> \r\n  constructor<\/span>(<\/span>private<\/span> prisma<\/span>:<\/span> PrismaService<\/span>)<\/span> {}<\/span> \r\n\r\n  @<\/span>Query<\/span>((<\/span>returns<\/span>)<\/span> =><\/span> [<\/span>User<\/span>])<\/span>   \r\n  async<\/span> users<\/span>()<\/span> {<\/span>   \r\n    return<\/span> this<\/span>.<\/span>prisma<\/span>.<\/span>user<\/span>.<\/span>findMany<\/span>();<\/span> \r\n  }<\/span> \r\n}<\/span>\r\n<\/code><\/pre>\n
\u5728\u8fd9\u4e2a\u65f6\u5019\uff0c\u5f53\u6211\u4eec\u5728nest-cli.json\u7684compilerOptions\u4e2d\u6dfb\u52a0GraphQL\u63d2\u4ef6\u5e76\u4f7f\u5176\u751f\u6548\u65f6\uff0c\u53ef\u4ee5\u5728\u4e00\u5b9a\u7a0b\u5ea6\u4e0a\u51cf\u5c11\u4ee3\u7801\u91cf\uff0c\u975e\u5e38\u65b9\u4fbf\u3002<\/p>\n
\"compilerOptions\"<\/span>:<\/span> {<\/span>\r\n    \"plugins\"<\/span>:<\/span> [<\/span>\r\n      {<\/span>\r\n        \"name\"<\/span>:<\/span> \"@nestjs\/graphql\/plugin\"<\/span>,<\/span>\r\n        \"options\"<\/span>:<\/span> {<\/span>\r\n          \"typeFileNameSuffix\"<\/span>:<\/span> [<\/span>\".input.ts\"<\/span>,<\/span> \".model.ts\"<\/span>]<\/span>\r\n        }<\/span>\r\n      }<\/span>\r\n    ]<\/span>\r\n  }<\/span>\r\n<\/code><\/pre>\n
\u53e6\u5916\uff0c\u8fd8\u6709\u4e00\u4e2a\u4ece\u5728\u7b2c6\u6b65\u521b\u5efa\u7684 schema.prisma \u4e2d\u81ea\u52a8\u751f\u6210 NestJS \u4ee3\u7801\u7684\u751f\u6210\u5668\uff0c\u4f46\u662f\u5b83\u5e76\u6ca1\u6709\u5f97\u5230\u5b98\u65b9\u7684\u652f\u6301\uff0c\u56e0\u6b64\u5728\u9009\u62e9\u4e0a\u4ecd\u7136\u76f8\u5f53\u56f0\u96be\u3002<\/p>\n
    \n
  • \n
      https:\/\/github.com\/EndyKaufman\/typegraphql-prisma-nestjs-example<\/ul>\n<\/li>\n<\/ul>\n
       <\/p>\n
        \n
      • \n
          https:\/\/github.com\/wSedlacek\/prisma-generators\/tree\/master\/libs\/nestjs<\/ul>\n<\/li>\n<\/ul>\n
           <\/p>\n
            https:\/\/github.com\/unlight\/prisma-nestjs-graphql<\/ul>\n
            11. \u5728AppModule\u4e2d\u5bfc\u5165PrismaService\u3001GraphQLModule\u548cUserResolver\u3002<\/h3>\n
            \u5728AppModule\u4e2d\uff0c\u6211\u4eec\u5c06\u5bfc\u5165\u4f7f\u75288\u521b\u5efa\u7684PrismaService\uff0c\u4f7f\u75289\u5b89\u88c5\u7684GraphQLModule\u548c\u4f7f\u752810\u521b\u5efa\u7684UserResolver\u3002<\/p>\n
            @<\/span>Module<\/span>({<\/span>\r\n  imports<\/span>:<\/span> [<\/span>\r\n    GraphQLModule<\/span>.<\/span>forRoot<\/span>({<\/span> \r\n      autoSchemaFile<\/span>:<\/span> join<\/span>(<\/span>process<\/span>.<\/span>cwd<\/span>(),<\/span> '<\/span>src\/schema.gql<\/span>'<\/span>),<\/span>    \r\n      debug<\/span>:<\/span> true<\/span>,<\/span>  \r\n      playground<\/span>:<\/span> true<\/span>,<\/span> \r\n    }),<\/span>\r\n  ],<\/span>\r\n  controllers<\/span>:<\/span> [<\/span>AppController<\/span>],<\/span>\r\n  providers<\/span>:<\/span> [<\/span>AppService<\/span>,<\/span> PrismaService<\/span>],<\/span>\r\n})<\/span>\r\n<\/code><\/pre>\n
            \u6821\u9a8c\u884c\u52a8<\/h2>\n
            \"image.png\"<\/div>\n
            \u6b64\u5916\uff0c\u6b63\u5982\u6240\u5b9a\u4e49\u7684autoSchemaFile\u4e00\u6837\uff0c\u5c06\u81ea\u52a8\u751f\u6210\u4e00\u4e2a\u540d\u4e3asrc\/schema.gql\u7684\u6a21\u5f0f\u5b9a\u4e49\u6587\u4ef6\u3002<\/p>\n
            \u5230\u6700\u540e<\/h2>\n
            \u67e5\u770b\u4e86Nexus 1.0\u7684\u53d1\u5e03\u8bf4\u660e\u540e\uff0c\u6211\u8bbe\u6cd5\u8003\u8651\u5982\u4f55\u5c06Nexus\u96c6\u6210\u8fdbNest+Prisma\uff0c\u4f46\u6211\u4e2a\u4eba\u611f\u89c9\u76ee\u524d\u5728Nest+Prisma\u4e2d\u4f7f\u7528Nexus\u4f3c\u4e4e\u6ca1\u6709\u592a\u591a\u610f\u4e49\u3002
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