Amazon web services 使用Lambda授权器的awscognito和websocketapi

我在尝试为WebSocket API设置lambda授权时遇到问题

Serverless.yml

functions:
  sample-web-socket-authorizer:
    iamRoleStatementsName: stack-${opt:stage}-web-socket-authorizer
    iamRoleStatementsInherit: true
    iamRoleStatements:
      - Effect: "Allow"
        Action:
          - 'cognito-idp:*'
        Resource: '*'
    handler: sample-web-socket-authorizer/handler.handler
    environment:
      JWK_URL: ${self:custom.jwkUrl}
      CLIENT_ID: ${self:custom.cognitoClientId}
  ...
  connectionHandler:
    handler: handler.connectionHandler
    events:
      - websocket:
          route: $connect
          authorizer:
            name: sample-web-socket-authorizer
            identitySource:
              - 'route.request.querystring.Authorizer'

在前端，我想发送一个tokenId或accessToken以在授权程序中使用

wss://abcd1234.execute-api.ap-region-1.amazonaws.com/pre?Authorizer=${token}

你们能给我一个使用python为我的websocket api创建lambda授权器的示例代码吗

---

我现在正在看这篇文章：

，所以我要做的就是将这段代码复制到我的授权人处理程序中：

然后基于这个文档

我改了密码

resourceArn = 'arn:aws:execute-api:{}:{}:{}/{}/{}/{}'.format(self.region, self.awsAccountId, self.restApiId, self.stage, verb, resource)        

到

您还需要在AuthPolicy类中指定methodArn，如下所示：

class AuthPolicy(object):
    # The AWS account id the policy will be generated for. This is used to create the method ARNs.
    awsAccountId = ''
    # The principal used for the policy, this should be a unique identifier for the end user.
    principalId = ''
    # The policy version used for the evaluation. This should always be '2012-10-17'
    version = '2012-10-17'
    # The regular expression used to validate resource paths for the policy
    pathRegex = '^[/.a-zA-Z0-9-\*]+$'

    methodArn = '*'
    ....

最后，在创建AuthPolicy时，添加methodArn Value comming from lambda事件：

policy = AuthPolicy(principalId, awsAccountId)
        policy.restApiId = apiGatewayArnTmp[0]
        policy.region = tmp[3]
        policy.stage = apiGatewayArnTmp[1]
        policy.methodArn = event["methodArn"]
        policy.allowAllMethods()

policy = AuthPolicy(principalId, awsAccountId)
        policy.restApiId = apiGatewayArnTmp[0]
        policy.region = tmp[3]
        policy.stage = apiGatewayArnTmp[1]
        policy.methodArn = event["methodArn"]
        policy.allowAllMethods()