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我正在尝试使用 apollo-server-express 创建一个简单的 graphql 后端。

在 expressJS 应用程序（Github repo）中执行此操作按预期工作：

执行查询

query {
    search {
        result
    }
}

在 localhost:4000/graphqlresult按预期返回。

解析器

module.exports = {
  Query: {
    search: async (obj, { name, value }) => {
      return 'result'
    }
  }
}

现在我想在 nx.dev 环境（Github repo）中使用这个 expressJS 后端。我在这里设置了相同的东西，但是在 graphQL 操场上运行服务器并执行查询会返回null.

我不明白出了什么问题。

这是我的结构：

main.ts

const express = require('express');
const { ApolloServer } = require('apollo-server-express');

const typeDefs = require('./graphql/types')
const resolvers = require('./graphql/resolvers')

const app = express();

const server = new ApolloServer({ typeDefs, resolvers });
server.applyMiddleware({ app });

app.listen({ port: 4000 }, () =>
  console.log(` Server ready at http://localhost:4000${server.graphqlPath}`)
)

结构体

+-- graphql
|   +-- author
|   |   +-- author.resolvers.js
|   |   +-- author.graphql
|   +-- search
|   |   +-- search.resolvers.js
|   |   +-- search.graphql
|   +-- resolvers.js <<< Merges all `*.resolvers.*` files
|   +-- types.js <<< Merges all `*.graphql` files

解析器.js

const path = require('path');
const { mergeResolvers } = require('@graphql-tools/merge');
const { loadFilesSync } = require('@graphql-tools/load-files');

const resolversArray = loadFilesSync(path.join(__dirname, "./**/*.resolvers.*"));
module.exports = mergeResolvers(resolversArray);

类型.js

const path = require('path');
const { loadFilesSync } = require('@graphql-tools/load-files');
const { mergeTypeDefs } = require('@graphql-tools/merge');

const typesArray = loadFilesSync(path.join(__dirname, './**/*.graphql'))

module.exports = mergeTypeDefs(typesArray, { all: true })

graphql/search/search.graphql

type Query {
  search(name: String, value: String): [String]
}

graphql/search/search.resolvers.js

module.exports = {
  Query: {
    search: async (obj, { name, value }) => {
      return 'result'
    }
  }
}
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