问如何在无服务器项目中拆分API网关服务
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Stack Overflow用户

提问于 2020-04-18 16:28:26

回答 1查看 340关注 0票数 1

我正在处理每个堆栈最多只能使用200个资源的CloudFormation限制。似乎解决方案是将我的服务(serverless.yml文件)分成多个文件。我尝试过自动化方法和they don't work for me。所以，我正在研究手动的。但我不知道该怎么做。

这是我有的一个示例文件：

service:                        serverless-test

provider:
  name:                         aws
  runtime:                      nodejs12.x
  endpointType:                 REGIONAL

plugins:
- serverless-aws-alias

functions:
  authorizerFunc:
    handler:                    code.authorizer

  users:
    handler:                    code.users
    events:
      - http:
          path:                 /user
          integration:          lambda
          authorizer:           authorizerFunc
          method:               get
          cors:                 true
          request:
            passThrough:        WHEN_NO_TEMPLATES
            template:
              application/json: '{ "action": "list_users" }'
      - http:
          path:                 /user
          integration:          lambda
          authorizer:           authorizerFunc
          method:               post
          cors:                 true
          request:
            passThrough:        WHEN_NO_TEMPLATES
            template:
              application/json: '{ "action": "create_user", "payload": $input.body }'

  posts:
    handler:                    code.posts
    events:
      - http:
          path:                 /post
          integration:          lambda
          authorizer:           authorizerFunc
          method:               get
          cors:                 true
          request:
            passThrough:        WHEN_NO_TEMPLATES
            template:
              application/json: '{ "action": "list_posts" }'
      - http:
          path:                 /post
          integration:          lambda
          authorizer:           authorizerFunc
          method:               post
          cors:                 true
          request:
            passThrough:        WHEN_NO_TEMPLATES
            template:
              application/json: '{ "action": "create_post", "payload": $input.body }'

有没有人能帮我把这个文件分成两份或三份？您可以随意以任何方式拆分它(只要生成的文件单独具有较少的资源)。只是JS代码应该保持不变。另外，请密切关注serverless-aws-alias插件。这是我服务的关键部分。当然，目的是部署多个文件应该与部署单个文件相同。

amazon-web-services

serverless-framework

回答 1

Stack Overflow用户

发布于 2020-04-19 17:22:17

据我所知，您应该能够通过拆分网关来处理此问题。

我建议首先创建一个部署了共享部件、应用编程接口网关和授权程序的serverless.yml

service: api-gw

provider:
  name: aws
  runtime: nodejs12.x
  stage: dev
  region: eu-west-2

functions:
  authorizerFunc:
    handler: handler.handler

plugins:
  - serverless-aws-alias

resources:
  Resources:
    MyApiGW:
      Type: AWS::ApiGateway::RestApi
      Properties:
        Name: MyApiGW

  Outputs:
    apiGatewayRestApiId:
      Value:
        Ref: MyApiGW
      Export:
        Name: MyApiGateway-restApiId

    apiGatewayRestApiRootResourceId:
      Value:
        Fn::GetAtt:
          - MyApiGW
          - RootResourceId
      Export:
        Name: MyApiGateway-rootResourceId

其余部分将根据资源数量进行拆分：

service: service-users

provider:
  name: aws
  runtime: nodejs12.x
  region: eu-west-2
  apiGateway:
    restApiId:
      'Fn::ImportValue': MyApiGateway-restApiId
    restApiRootResourceId:
      'Fn::ImportValue': MyApiGateway-rootResourceId
    websocketApiId:
      'Fn::ImportValue': MyApiGateway-websocketApiId

plugins:
  - serverless-aws-alias

functions:
  users:
    handler:                    handler.handler
    events:
      - http:
          path:                 /user
          integration:          lambda
          authorizer:
            arn: authorizerFuncARN
          method:               get
          cors:                 true
          request:
            passThrough:        WHEN_NO_TEMPLATES
            template:
              application/json: '{ "action": "list_users" }'
      - http:
          path:                 /user
          integration:          lambda
          authorizer:           
            arn: authorizerFuncARN
          method:               post
          cors:                 true
          request:
            passThrough:        WHEN_NO_TEMPLATES
            template:
              application/json: '{ "action": "create_user", "payload": $input.body }'