AWS-LAMBDA：没有这样的文件或目录，打开 './src/graphql/schema.graphql'

Posted 2023-03-08

【中文标题】AWS-LAMBDA：没有这样的文件或目录，打开 \'./src/graphql/schema.graphql\'

【英文标题】：AWS-LAMBDA: no such file or directory, open './src/graphql/schema.graphql'AWS-LAMBDA：没有这样的文件或目录，打开 './src/graphql/schema.graphql'

【发布时间】：2022-01-19 16:28:11

【问题描述】：

我正在练习 Graphql 和 AWS。我使用简单的无服务器框架也创建了简单的 Graphql 模式。我部署了架构（好像这个 graphql.schema 文件没有部署），解析器到 AWS。它成功地创建了一个 DynamoDB 表和 lambda。我可以使用 serverless-offline 通过 Graphql Playground 发出 POST/GET 请求。但问题是 api 端点不起作用。它告诉我internal server error。我正在调查这个问题。从 cloud watch 我发现了我创建的 Lambda 函数的本地模式确实找到了graphql.schema。这是我收到的错误"ENOENT: no such file or directory, open './src/graphql/schema.graphql'". 这是 lambda 错误Image

这是我的 lambda 函数

import  ApolloServer  from 'apollo-server-lambda';
import  ApolloServerPluginLandingPageGraphQLPlayground  from 'apollo-server-core';
import runWarm from '../utils/run-warm';
import fs from 'fs';

const schema = fs.readFileSync('./src/graphql/schema.graphql', 'utf8'); // This is local my schema 
import resolvers from '../resolvers';

const server = new ApolloServer(
  typeDefs: schema,
  resolvers,
  introspection: true,
  plugins: [ApolloServerPluginLandingPageGraphQLPlayground()],
);

export default runWarm(
  server.createHandler(
    expressGetMiddlewareOptions: 
      cors: 
        origin: '*',
        credentials: true,
        allowedHeaders: ['Content-Type', 'Origin', 'Accept'],
        optionsSuccessStatus: 200,
      ,
    ,
  )
);

这是我的无服务器 YAML 文件

service: serverless-aws-graphql

package:
  individually: true

provider:
  name: aws
  profile: $env:profile
  runtime: nodejs14.x
  stage: $env:stage
  region: eu-north-1
  timeout: 30
  apiName: $self:service.name-$self:provider.stage
  environment:
    ITEM_TABLE: $self:service-items-$self:provider.stage
  iamRoleStatements:
    - Effect: Allow
      Action:
        - dynamodb:Query
        - dynamodb:Scan
        - dynamodb:GetItem
        - dynamodb:PutItem
        - dynamodb:UpdateItem
        - dynamodb:DeleteItem
      Resource: 'arn:aws:dynamodb:$opt:region, self:provider.region:*:table/$self:provider.environment.ITEM_TABLE'

  apiGateway:
    shouldStartNameWithService: true

custom:
  webpack:
    webpackConfig: ./webpack.config.js
    includeModules: true
    packager: 'npm' # Packager that will be used to package your external modules
  warmup:
    enabled: true
    events:
      - schedule: rate(5 minutes)
    prewarm: true
    concurrency: 1
  prune:
    automatic: true
    number: 5

functions:
  graphql:
    handler: src/handlers/graphql.default
    events:
      - http:
          path: $env:api_prefix/graphql
          method: any
          cors: true

resources:
  Resources:
    ItemsTable:
      Type: 'AWS::DynamoDB::Table'
      Properties:
        AttributeDefinitions:
          - AttributeName: PK
            AttributeType: S
          - AttributeName: SK
            AttributeType: S
          - AttributeName: GSI1PK
            AttributeType: S
          - AttributeName: GSI1SK
            AttributeType: S
        KeySchema:
          - AttributeName: PK
            KeyType: HASH
          - AttributeName: SK
            KeyType: RANGE
        ProvisionedThroughput:
          ReadCapacityUnits: 1
          WriteCapacityUnits: 1
        GlobalSecondaryIndexes:
          - IndexName: GSI1
            KeySchema:
              - AttributeName: GSI1PK
                KeyType: HASH
              - AttributeName: GSI1SK
                KeyType: RANGE
            Projection:
              ProjectionType: ALL
            ProvisionedThroughput:
              ReadCapacityUnits: 1
              WriteCapacityUnits: 1
        TableName: $self:provider.environment.ITEM_TABLE

plugins:
  - serverless-webpack
  - serverless-offline
  - serverless-plugin-warmup
  - serverless-dotenv-plugin
  - serverless-prune-plugin

这是我的 webpack.config.js 设置

const nodeExternals = require('webpack-node-externals');
const slsw = require('serverless-webpack');

module.exports = 
  entry: slsw.lib.entries,
  target: 'node',
  mode: slsw.lib.webpack.isLocal ? 'development' : 'production',
  externals: [nodeExternals()],
  module: 
    rules: [
      
        test: /\.tsx?$/,
        use: 'ts-loader',
        exclude: /node_modules/,
      ,
    ],
  ,
  resolve: 
    extensions: ['.tsx', '.ts', '.js', '.jsx'],
  ,
;

这是我的 tsconfig 设置

  "compilerOptions": 
    "target": "esnext",
    "allowJs": true,
    "skipLibCheck": false,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "strict": true,
    "forceConsistentCasingInFileNames": true,
    "module": "esnext",
    "moduleResolution": "node",
    "resolveJsonModule": true,
    "noEmit": false,
    "jsx": "preserve",
    "noUnusedLocals": true,
    "noUnusedParameters": true
  ,
  "include": [
    "src/**/*"
  ],
  "exclude": [
    "node_modules",
  ]

【参考方案1】：

正如您所观察到的，./src/graphql/schema.graphql 没有被打包到无服务器构建和部署的最终工件中。

您可以通过在函数中指定 package 属性来添加它：

graphql:
  handler: src/handlers/graphql.default
  events:
    - http:
        path: $env:api_prefix/graphql
        method: any
        cors: true
  package:
    include:
      - src/graphql/schema.graphql

来源：https://www.serverless.com/framework/docs/providers/aws/guide/packaging#patterns

【讨论】：

仍然出现同样的错误:(

当您将 Typescript 与 Serverless 一起使用时，似乎还有一些额外的构建步骤。您可以查看并尝试this question 或this question 的答案。最新的一个与你的情况非常相似。

谢谢！我想我想通了，但没有找到主要原因。它有些方法不加载 schema.graphql 文件，但它接受 schema.ts 文件。 ，我认为我的 webpack 和 typescript 设置有问题。我将在问题中附上我的 webpack 和 tsconfig 设置。

好吧，知道您正在使用 webpack 会有所帮助。很高兴您找到了解决方案！