如何解决 AWS CDK 错误 "Argument of type 'Function' is not assignable to parameter of type 'IFunction'"

Question

我想从 https://docs.aws.amazon.com/cdk/latest/guide/serverless_example.html 中获取以下示例代码，但出现“'Function' 类型的参数不可分配给 'IFunction' 类型的参数”错误。

import * as cdk from '@aws-cdk/core';
import * as apigateway from '@aws-cdk/aws-apigateway';
import * as lambda from '@aws-cdk/aws-lambda';

export default class ApiGatewayFunctionStack extends cdk.Stack {
  
  constructor(scope: cdk.App, id: string, props?: cdk.StackProps) {
    
    super(scope, id, props);

    const handler = new lambda.Function(this, 'WidgetHandler', {
      runtime: lambda.Runtime.NODEJS_10_X, // So we can use async in widget.js
      code: lambda.Code.fromAsset('resources'),
      handler: 'widgets.main',
    });

    const api = new apigateway.RestApi(this, 'widgets-api', {
      restApiName: 'Widget Service',
      description: 'This service serves widgets.',
    });

    const getWidgetsIntegration = new apigateway.LambdaIntegration(handler, {
      requestTemplates: { 'application/json': '{ "statusCode": "200" }' },
    });

    api.root.addMethod('GET', getWidgetsIntegration); // GET /
  }
}

下面的完整错误似乎表明至少部分问题可能是 aws-apigateway 包有自己的不兼容包。

我不知道如何解决这个问题，非常感谢您的帮助。

test-deploy/ApiGatewayFunctionStack.ts:49:68 - error TS2345: Argument of type 'Function' is not assignable to parameter of type 'IFunction'.
  Types of property 'role' are incompatible.
    Type 'import("D:/Users/andyb/Documents/github/agb-aws-functions/node_modules/@aws-cdk/aws-iam/lib/role").IRole | undefined' is not assignable to type 'import("D:/Users/andyb/Documents/github/agb-aws-functions/node_modules/@aws-cdk/aws-apigateway/node_modules/@aws-cdk/aws-iam/lib/role").IRole | undefined'.
      Type 'import("D:/Users/andyb/Documents/github/agb-aws-functions/node_modules/@aws-cdk/aws-iam/lib/role").IRole' is not assignable to type 'import("D:/Users/andyb/Documents/github/agb-aws-functions/node_modules/@aws-cdk/aws-apigateway/node_modules/@aws-cdk/aws-iam/lib/role").IRole'.
        Types of property 'grant' are incompatible.
          Type '(grantee: import("D:/Users/andyb/Documents/github/agb-aws-functions/node_modules/@aws-cdk/aws-iam/lib/principals").IPrincipal, ...actions: string[]) => import("D:/Users/andyb/Documents/github/agb-aws-functions/node_modules/@aws-cdk/aws-iam/lib/grant").Grant' is not assignable to type '(grantee: import("D:/Users/andyb/Documents/github/agb-aws-functions/node_modules/@aws-cdk/aws-apigateway/node_modules/@aws-cdk/aws-iam/lib/principals").IPrincipal, ...actions: string[]) => import("D:/Users/andyb/Documents/github/agb-aws-functions/node_modules/@aws-cdk/aws-apigateway/node_modules/@aws-cdk/aws-iam/lib...'.
            Types of parameters 'grantee' and 'grantee' are incompatible.
              Type 'import("D:/Users/andyb/Documents/github/agb-aws-functions/node_modules/@aws-cdk/aws-apigateway/node_modules/@aws-cdk/aws-iam/lib/principals").IPrincipal' is not assignable to type 'import("D:/Users/andyb/Documents/github/agb-aws-functions/node_modules/@aws-cdk/aws-iam/lib/principals").IPrincipal'.
                Types of property 'addToPolicy' are incompatible.
                  Type '(statement: import("D:/Users/andyb/Documents/github/agb-aws-functions/node_modules/@aws-cdk/aws-apigateway/node_modules/@aws-cdk/aws-iam/lib/policy-statement").PolicyStatement) => boolean' is not assignable to type '(statement: import("D:/Users/andyb/Documents/github/agb-aws-functions/node_modules/@aws-cdk/aws-iam/lib/policy-statement").PolicyStatement) => boolean'.
                    Types of parameters 'statement' and 'statement' are incompatible.
                      Type 'import("D:/Users/andyb/Documents/github/agb-aws-functions/node_modules/@aws-cdk/aws-iam/lib/policy-statement").PolicyStatement' is not assignable to type 'import("D:/Users/andyb/Documents/github/agb-aws-functions/node_modules/@aws-cdk/aws-apigateway/node_modules/@aws-cdk/aws-iam/lib/policy-statement").PolicyStatement'.
                        Types have separate declarations of a private property 'action'.

49     const getWidgetsIntegration = new apigateway.LambdaIntegration(handler, {

Answer 1

此错误 Argument of type 'SomeClass' is not assignable to parameter of type 'ISomeClass' 通常在 CDK 依赖项的版本处于不同版本时发生。为了解决这个问题，我们需要将所有依赖项都带到同一个版本。

删除 node_modules 文件夹
删除package-lock.json
确保 package.json 中的所有依赖项都使用相同的版本。
删除依赖项前的胡萝卜 ^ 符号，例如从 "@aws-cdk/aws-lambda": "^1.90.0" 到 "@aws-cdk/aws-lambda": "1.90.0" ，以避免不同的次要版本正在安装。
npm install

Answer 2

另一个解决方案是像这样导入包：

const lambda = require('@aws-cdk/aws-lambda');

但是代码质量检查器（例如 ESLINT）可能不喜欢它。

如何解决 AWS CDK 错误 "Argument of type 'Function' is not assignable to parameter of type 'IFunction'"

How to resolve AWS CDK error "Argument of type 'Function' is not assignable to parameter of type 'IFunction'"

aws-lambda

aws-cdk