没有导出成员 'graphqlKoa' 并尝试了所有配置选项
has no exported member 'graphqlKoa' and have tried all the config options
我一直在 运行 讨论这个问题,我正在尝试使用 graphql 设置打字稿 koa 后端,但一直收到此错误。
[nodemon] starting `ts-node --inspect -r tsconfig-paths/register ./src/server.ts`
/home/wouter/dev/project/node_modules/ts-node/src/index.ts:261
return new TSError(diagnosticText, diagnosticCodes)
^
TSError: ⨯ Unable to compile TypeScript:
src/routes.ts(4,10): error TS2305: Module '"/home/wouter/dev/project/node_modules/apollo-server-koa/dist/index"' has no exported member 'graphqlKoa'.
src/routes.ts(4,22): error TS2305: Module '"/home/wouter/dev/project/node_modules/apollo-server-koa/dist/index"' has no exported member 'graphiqlKoa'.
src/routes.ts(6,24): error TS2307: Cannot find module 'graphql/schema'.
at createTSError (/home/wouter/dev/project/node_modules/ts-node/src/index.ts:261:12)
at getOutput (/home/wouter/dev/project/node_modules/ts-node/src/index.ts:367:40)
at Object.compile (/home/wouter/dev/project/node_modules/ts-node/src/index.ts:558:11)
at Module.m._compile (/home/wouter/dev/project/node_modules/ts-node/src/index.ts:439:43)
at Module._extensions..js (internal/modules/cjs/loader.js:665:10)
at Object.require.extensions.(anonymous function) [as .ts] (/home/wouter/dev/project/node_modules/ts-node/src/index.ts:442:12)
at Module.load (internal/modules/cjs/loader.js:566:32)
at tryModuleLoad (internal/modules/cjs/loader.js:506:12)
at Function.Module._load (internal/modules/cjs/loader.js:498:3)
at Module.require (internal/modules/cjs/loader.js:598:17)
[nodemon] app crashed - waiting for file changes before starting...
这是 routes.ts 文件
import Router from 'koa-router';
import koaBody from 'koa-bodyparser';
import { graphqlKoa, graphiqlKoa } from 'apollo-server-koa';
import { schema } from 'graphql/schema';
export const routes = new Router();
// API entrypoint
const apiEntrypointPath = '/graphql';
const graphQlOpts = graphqlKoa({
schema,
});
routes.get(apiEntrypointPath, graphQlOpts);
routes.post(apiEntrypointPath, koaBody(), graphQlOpts);
// GraphiQL entrypoint
routes.get('/graphiql', graphiqlKoa({ endpointURL: apiEntrypointPath }));
这是我的 tsconfig.json
{
"compileOnSave": false,
"compilerOptions": {
"target": "es6",
"strict": false,
"module": "commonjs",
"moduleResolution": "node",
"noImplicitAny": false,
"emitDecoratorMetadata": true,
"allowSyntheticDefaultImports": true,
"experimentalDecorators": true,
"esModuleInterop": true,
"sourceMap": true,
"baseUrl": "./src"
},
"exclude": [
"node_modules",
"client",
"**/*.spec.ts"
]
}
我能找到的最多信息是我需要将 "esModuleInterop" 更改为 true 但这没有帮助。我也尝试添加 skipLibCheck 但仍然没有运气。据我所知,我确实安装了正确的类型,所以我想知道发生了什么事?
如错误所示,apollo-server-koa
模块没有名为 graphqlKoa
的导出。从 2.0 版开始,Apollo Server 的 API 发生了相当大的变化。如果您使用的是更新版本的 apollo-server-koa
,您的代码应该更像这样:
import Koa from 'koa'
import { ApolloServer } from 'apollo-server-koa'
import { typeDefs, resolvers } from './somewhere'
const server = new ApolloServer({ typeDefs, resolvers })
const app = new Koa()
server.applyMiddleware({ app });
app.listen({ port: 4000 }, () =>
console.log(`Server ready at http://localhost:4000${server.graphqlPath}`),
)
如果您不使用任何其他路由,您也可以使用 apollo-server
包设置一个 "standalone" 服务器:
import { ApolloServer } from 'apollo-server'
import { typeDefs, resolvers } from './somewhere'
const server = new ApolloServer({ typeDefs, resolvers })
server.listen().then(({ url }) => {
console.log(` Server ready at ${url}`);
});
我一直在 运行 讨论这个问题,我正在尝试使用 graphql 设置打字稿 koa 后端,但一直收到此错误。
[nodemon] starting `ts-node --inspect -r tsconfig-paths/register ./src/server.ts`
/home/wouter/dev/project/node_modules/ts-node/src/index.ts:261
return new TSError(diagnosticText, diagnosticCodes)
^
TSError: ⨯ Unable to compile TypeScript:
src/routes.ts(4,10): error TS2305: Module '"/home/wouter/dev/project/node_modules/apollo-server-koa/dist/index"' has no exported member 'graphqlKoa'.
src/routes.ts(4,22): error TS2305: Module '"/home/wouter/dev/project/node_modules/apollo-server-koa/dist/index"' has no exported member 'graphiqlKoa'.
src/routes.ts(6,24): error TS2307: Cannot find module 'graphql/schema'.
at createTSError (/home/wouter/dev/project/node_modules/ts-node/src/index.ts:261:12)
at getOutput (/home/wouter/dev/project/node_modules/ts-node/src/index.ts:367:40)
at Object.compile (/home/wouter/dev/project/node_modules/ts-node/src/index.ts:558:11)
at Module.m._compile (/home/wouter/dev/project/node_modules/ts-node/src/index.ts:439:43)
at Module._extensions..js (internal/modules/cjs/loader.js:665:10)
at Object.require.extensions.(anonymous function) [as .ts] (/home/wouter/dev/project/node_modules/ts-node/src/index.ts:442:12)
at Module.load (internal/modules/cjs/loader.js:566:32)
at tryModuleLoad (internal/modules/cjs/loader.js:506:12)
at Function.Module._load (internal/modules/cjs/loader.js:498:3)
at Module.require (internal/modules/cjs/loader.js:598:17)
[nodemon] app crashed - waiting for file changes before starting...
这是 routes.ts 文件
import Router from 'koa-router';
import koaBody from 'koa-bodyparser';
import { graphqlKoa, graphiqlKoa } from 'apollo-server-koa';
import { schema } from 'graphql/schema';
export const routes = new Router();
// API entrypoint
const apiEntrypointPath = '/graphql';
const graphQlOpts = graphqlKoa({
schema,
});
routes.get(apiEntrypointPath, graphQlOpts);
routes.post(apiEntrypointPath, koaBody(), graphQlOpts);
// GraphiQL entrypoint
routes.get('/graphiql', graphiqlKoa({ endpointURL: apiEntrypointPath }));
这是我的 tsconfig.json
{
"compileOnSave": false,
"compilerOptions": {
"target": "es6",
"strict": false,
"module": "commonjs",
"moduleResolution": "node",
"noImplicitAny": false,
"emitDecoratorMetadata": true,
"allowSyntheticDefaultImports": true,
"experimentalDecorators": true,
"esModuleInterop": true,
"sourceMap": true,
"baseUrl": "./src"
},
"exclude": [
"node_modules",
"client",
"**/*.spec.ts"
]
}
我能找到的最多信息是我需要将 "esModuleInterop" 更改为 true 但这没有帮助。我也尝试添加 skipLibCheck 但仍然没有运气。据我所知,我确实安装了正确的类型,所以我想知道发生了什么事?
如错误所示,apollo-server-koa
模块没有名为 graphqlKoa
的导出。从 2.0 版开始,Apollo Server 的 API 发生了相当大的变化。如果您使用的是更新版本的 apollo-server-koa
,您的代码应该更像这样:
import Koa from 'koa'
import { ApolloServer } from 'apollo-server-koa'
import { typeDefs, resolvers } from './somewhere'
const server = new ApolloServer({ typeDefs, resolvers })
const app = new Koa()
server.applyMiddleware({ app });
app.listen({ port: 4000 }, () =>
console.log(`Server ready at http://localhost:4000${server.graphqlPath}`),
)
如果您不使用任何其他路由,您也可以使用 apollo-server
包设置一个 "standalone" 服务器:
import { ApolloServer } from 'apollo-server'
import { typeDefs, resolvers } from './somewhere'
const server = new ApolloServer({ typeDefs, resolvers })
server.listen().then(({ url }) => {
console.log(` Server ready at ${url}`);
});