如何从 Node.js Lambda 函数调用步骤函数？

我正在尝试从 Node.js lambda 函数调用步骤函数。我尝试了该解决方案并更新了实现thread.

显示错误响应的解决方案，但更新后的代码显示成功响应。但更新后的代码没有调用step函数。

My Code:

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-east-2'
});
console.log('Loading init');
module.exports.init = (event, context, callback) => {
console.log('Loading params');
const params = {
        stateMachineArn: 'ARN of My State Machine',
        // 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);
        }
    });
    };
};

我已将上述代码添加到 Lambda 函数中并部署代码。之后我使用了 lambda 函数的 Test 选项。这是执行 Lambda 函数的正确方法吗？测试结果是成功的，但是当我检查状态机时，没有最近的执行。帮助我找到解决方案，我对步骤功能非常陌生。提前致谢。

以下是我所做的事情：

• 创建了 lambda 并添加了步骤函数执行的权限lambda role
• 创建了类型的step函数（只是一个hello world）standard。在创作时我选择了ALL Logs哪个去CloudWatch Log Group。甚至它们也被展示在step function控制台如下Logging tab.

下面是我调用步骤函数的代码：

var aws = require('aws-sdk')
exports.handler = (event, context, callback) => {
  var params = {
    stateMachineArn: 'arn:aws:states:us-east-1:1234567890:stateMachine:Helloworld',
    input: JSON.stringify({})
  };
  var stepfunctions = new aws.StepFunctions()
  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);
    }
});
}

Lambda 执行日志

Step 函数执行日志