Javascript aws从lambda调用step函数

所以我设置了一个step函数来调用lamba，它将发送一封电子邮件

我已经手动测试了这个函数，它可以工作了…现在我想用一个新的lambda来调用这个step函数…我在网上找到了一些代码，并对它进行了处理…通过了测试，没有引发任何错误…有人知道我缺少了什么，因为它不工作了吗

我在

https://www.youtube.com/watch?v=9MKL5Jr2zZ4&t=306s

我认为直接复制它是可以的，因为它的唯一用途是调用step函数

谢谢

'use strict';

const AWS = require('aws-sdk');
const stepFunctions = new AWS.StepFunctions();

//module.exports.hello = (event, context, callback) => {
exports.handler = function(event, context) {
    const response = {
        statusCode:200,
        body: JSON.stringify({
            message: 'Hello World!',
            input: event,
        }),
    };

//  callback(null, response);
};

module.exports.init = (event, context, callback) => {

    const params = {
        stateMachineArn: 'STATE-MACHINE-ARN',
        input: '',
        name: 'Execution lambda'
    }

    stepFunctions.startExecution(params, (err, data) => {
        if(err) {
            console.log(err);

            const response = {
                statusCode: 500,
                body:JSON.stringify({
                    message: 'There was an error'
                }),
            };
            callback(null, response);
        } else {
            console.log(data);

            const response = {
                statusCode: 200,
                body: JSON.stringify({
                    message: 'Step function worked'
                })
            };
            callback(null, response);
        }
    });
};

我只想让这个lambda调用step函数

executeSendEmailLambda

任何帮助都是非常感谢的

更新 多亏了我的帮助，我想我离我们更近了一点，但是我们已经回到了测试通过的第一步，但是兰姆达并没有叫F步

console.log('Loading function');

const AWS = require('aws-sdk');

exports.handler = function(event, context) {

    console.log('Loading step functions');
    const stepFunctions = new AWS.StepFunctions({
    region: 'US West (Oregon)'
});

console.log('Loading init');
module.exports.init = (event, context, callback) => {

    console.log('Loading params');

    const params = {
        stateMachineArn: 'STATE-MACHINE-ARN',
        // input: JSON.stringify({}), Optional if your statemachine requires an application/json input, make sure its stringified 
        name: 'TestExecution' // name can be anything you want, but it should change for every execution
    };

    console.log('start step functions');

    stepFunctions.startExecution(params, (err, data) => {
        if (err) {
            console.log(err);
            const response = {
                statusCode: 500,
                body: JSON.stringify({
                    message: 'There was an error'
                })
            };
            callback(null, response);
        } else {
            console.log(data);
            const response = {
                statusCode: 200,
                body: JSON.stringify({
                    message: 'Step function worked'
                })
            };
            callback(null, response);
            console.log(response);
        }
    });
    };

};

此日志显示以下内容

    
23:54:47
2017-12-07T23:54:47.448Z    016133fa-dbaa-11e7-8473-7147adf52922    Loading function

23:54:47
START RequestId: 016133fa-dbaa-11e7-8473-7147adf52922 Version: $LATEST

23:54:47
2017-12-07T23:54:47.767Z    016133fa-dbaa-11e7-8473-7147adf52922    Loading step functions

23:54:47
2017-12-07T23:54:47.905Z    016133fa-dbaa-11e7-8473-7147adf52922    Loading init

23:54:47
END RequestId: 016133fa-dbaa-11e7-8473-7147adf52922

23:54:47
REPORT RequestId: 016133fa-dbaa-11e7-8473-7147adf52922  Duration: 178.97 ms Billed Duration: 200 ms Memory Size: 128 MB Max Memory Used: 31 MB
No newer events found at the moment. Retry.

---

我对您的代码进行了一些修改，并使用我的一个Step函数对其进行了测试，这段代码似乎适合我：）

---

嘿，克沙夫，谢谢你花时间回复…我已经尝试了你建议在我的地区名称中添加的内容，以及状态机arn。但这会触发一个错误响应：{“errorMessage”：“模块‘index’’上缺少处理程序‘Handler’”}……因此我在缺少的exports.Handler=函数（事件，上下文）{const Response={statusCode:200，body:JSON.stringify中添加了({消息：'Hello World！'，输入：event，}，}；}；这似乎可行，在测试中没有引发错误，但它不会调用step函数。您知道这可能不起作用的原因吗？您好，很抱歉回复太晚，但是如果您只是将serverless.yml文件中的处理程序名称从handler.handler更改为handler.init，我的代码应该可以工作，您不需要导出另一个名为处理程序，因为当你这样做时，LAMBDA只会在这个模块中运行代码，它不会考虑init模块。我已经更新了区域和状态机ARN值。但是当我执行这个时，我得到下面的错误消息：<代码> {“Error Meime:”：“2021-03-31T11:53:06.420Z*某些键使用-*任务在3.02秒后超时”}您找到解决方案了吗？我尝试了更新部件代码，lambda执行成功，但它没有调用step函数。请看这里。我做了完全相同的事情，从lambda调用了step函数。代码可以适当缩进，以提供更多精彩

const AWS = require('aws-sdk');

const stepFunctions = new AWS.StepFunctions({
region: 'YOUR_REGION_NAME'
});

module.exports.init = (event, context, callback) => {
const params = {
    stateMachineArn: 'YOUR_STATE_MACHINE_ARN',
    // input: JSON.stringify({}), Optional if your statemachine requires an application/json input, make sure its stringified 
    name: 'TestExecution' // name can be anything you want, but it should change for every execution
};

stepFunctions.startExecution(params, (err, data) => {
    if (err) {
    console.log(err);
    const response = {
        statusCode: 500,
        body: JSON.stringify({
        message: 'There was an error'
        })
    };
    callback(null, response);
    } else {
    console.log(data);
    const response = {
        statusCode: 200,
        body: JSON.stringify({
        message: 'Step function worked'
        })
    };
    callback(null, response);
    }
});
};

{
"Comment": "Call Library_ReIndex Lambda",
"StartAt": "Library_StepFun_RDSAccess",
"States": {
"Library_StepFun_RDSAccess": {
  "Type": "Task",
  "Resource": "arn:aws:lambda:us-east- 
    1:163806924483:function:Library_StepFun_RDSAccess",
  "OutputPath": "$",
  "Next": "MappingState"
},
"MappingState": {
  "Type": "Map",
  "InputPath": "$",
  "ItemsPath": "$.documents",
  "MaxConcurrency": 10,
  "Iterator": {
    "StartAt": "Choice",
    "States": {
      "Choice": {
        "Type": "Choice",
        "InputPath": "$",
        "Choices": [
          {
            "Variable": "$.doc_source_type",
            "StringEquals": "slides",
            "Next": "callSlides"
          },
          {
            "Variable": "$.doc_source_type",
            "StringEquals": "docs",
            "Next": "callDocs"
          }
        ]
      },
      "callDocs": {
        "Type": "Task",
        "InputPath": "$",
        "Resource": "arn:aws:lambda:us-east-1:163806924483:function:Library-Docs- 
          Parser-2",
        "Catch": [ {
        "ErrorEquals": ["States.ALL"],
        "Next": "CatchAllFallback"
        } ],
        "OutputPath": "$",
        "End": true
      },
      "callSlides": {
        "Type": "Task",
        "InputPath": "$",
        "Resource": "arn:aws:lambda:us-east-1:163806924483:function:Library-Slides-Parser",
        "Catch": [ {
        "ErrorEquals": ["States.ALL"],
        "Next": "CatchAllFallback"
        } ],
        "OutputPath": "$",
        "End": true
      },
      "CatchAllFallback": {
      "Type": "Pass",
      "Result": "This is a fallback from any error code",
      "End": true
      }
    }
  },
  "End": true
}
}
}