Aws lambda 如何在VSCode AWS Sam本地Lambda函数中实际逐步调试

大家好，这里有人成功地用visual studio代码和NodeS8.10中断了本地运行的lambda函数吗？我不知道是不是因为我的项目是打字脚本。 我一直跟着，但没有用

如果我在某个文件上执行

stopOnEntry:true

vscode停止，则函数将运行，但不会在实际函数的断点上停止

输出：

$ sam local invoke ConsumeSQSFunction --no-event --region us-west-2 -d 5858
2019-04-30 11:19:16 Found credentials in shared credentials file: ~/.aws/credentials
2019-04-30 11:19:16 Invoking index.processPublisherServicesQueue (nodejs8.10)

Fetching lambci/lambda:nodejs8.10 Docker container image......
2019-04-30 11:19:17 Mounting /home/dev/Documents/xxxx/main-dir/dist/lambda-section/consume-sqs as /var/task:ro,delegated inside runtime container
Debugger listening on ws://0.0.0.0:5858/74f34edb-cdcd-4da0-82c0-950f5d809fd9
For help see https://nodejs.org/en/docs/inspector
Debugger attached.
START RequestId: 1a4198ca-cceb-1b38-f251-386a239dad19 Version: $LATEST
2019-04-30T18:19:19.800Z        1a4198ca-cceb-1b38-f251-386a239dad19    Hello World!
2019-04-30T18:19:19.800Z        1a4198ca-cceb-1b38-f251-386a239dad19    Processing queue {} [] undefined
END RequestId: 1a4198ca-cceb-1b38-f251-386a239dad19
REPORT RequestId: 1a4198ca-cceb-1b38-f251-386a239dad19  Duration: 199.46 ms     Billed Duration: 200 ms Memory Size: 128 MB     Max Memory Used: 45 MB

{"statusCode":200,"body":"{\"message\":\"hello world\"}"}
Waiting for the debugger to disconnect...

项目结构：

launch.json
/main-dir
   /app
        /lambda-section (where I did sam init)
               /ConsumeSQS
                   index.ts
              template.yaml
              event.json
        /etc
   /dist
       /lambda-section
         /ConsumeSQS
            index.js
            index.js.map

template.yaml中的相关部分

Resources:
  ConsumeSQSFunction:
    Type: AWS::Serverless::Function # More info about Function Resource: https://github.com/awslabs/serverless-application-model/blob/master/versions/2016-10-31.md#awsserverlessfunction
    Properties:
      FunctionName: ConsumeSQS
      Description: 'Consumes messages from SQS queue'
      CodeUri: ../../dist/lambda-section/consume-sqs/
      Handler: index.processPublisherServicesQueue
      Runtime: nodejs8.10

launch.json：

,
        {
            "name": "Attach to SAM CLI",
            "type": "node",
            "request": "attach",
            "address": "localhost",
            "port": 5858,
            // From the sam init example, it would be "${workspaceRoot}/hello_world"
            "localRoot": "${workspaceRoot}/main-dir/app/lambda-section",
            "remoteRoot": "/var/task",
            "protocol": "inspector",
            "stopOnEntry": false
        }

---

我认为问题在于您尚未配置源映射

当您运行SAM时，实际调用的代码是

dist/lambda section/consumersqs/index.js

，甚至需要通过包装器（这是您在

stopOnEntry

时看到的）

我建议您在

launch.json

中添加

“sourceMaps”：true

。如果这样做很好，但是您可能还需要使用

sourceMapPathOverrides

键

如果签出

dist/../index.js

和匹配映射的内容，您应该能够看到这些文件中引用的源映射路径与实际typescript文件的路径之间的差异。然后，您可以相应地以映射的形式提供覆盖，例如：

"sourceMapPathOverrides": {
  "file:///lambda-section/ConsumeSQS/*": "${workspaceRoot}/main-dir/app/lambda-section/*"
}

（注意：有关这些属性的更多信息，请参阅）