aws-step-functions

I have an AWS step-function/state-machine of Lambda functions written primarily in Javascript (although one is in Java) and I'd like to manage the error processing better. I have no problem with having an error condition being caught and then forwarded to another state in the flow. So for instance, the following state definition in my state machine passes execution to the NotifyOfError state where I am able to email and sms appropriately about the error state. Closure: Type: Task Resource: >- arn:aws:lambda:#{AWS::Region}:#{AWS::AccountId}:function:xxx-services-${opt:stage}-transportClosure

I'm looking a solution for my problem and maybe someone could give me some ideas. I have a API Gateway plugged to a aws lambda A. I have to handle cases like this: Lambda A should call lambda B and if there are any results, return to the API Gateway. Lambda A should call lambda B and if no results, it will call lambda C, and then return whatever the results are to the APi Gateway . So, my problem is how to chain these lambdas, because I don't want to have a huge lambda. At first, I thought about using Step Functions except that this works in a asynchronous mode, so no good for my case. I know

How can I passthrough the input to a Task state in an AWS Step Functions to the output? After reading the Input and Output Processing page in the AWS docs, I have played with various combinations of InputPath , ResultPath and OutputPath . State definition: "First State": { "Type": "Task", "Resource": "[My Lambda ARN]", "Next": "Second State", "InputPath": "$.someKey", "OutputPath": "$" } Input: { "someKey": "someValue" } Expected Result I would like the output of the First State (and thus the input of Second State ) to be { "someKey": "someValue" } Actual Result [empty] What if the input is

How do I invoke an AWS Step Function using an API Gateway POST request, and the request's JSON payload to the Step Function ? 1. Create your step function Quite obvious. I guess that if you're reading this you know how to do it. Otherwise, you can go have a look at the documentation here: What is AWS Step Functions? . 2. Create the IAM Role for your API It can be for either all Step Functions, or only this one. We'll only cover the first case, as explained in an Amazon tutorial: Creating an API Using API Gateway . To create the IAM role Log in to the AWS Identity and Access Management console.

I have the following Step Function : { "Comment": "Test Lambda with Wait", "StartAt": "wait_using_seconds", "States": { "wait_using_seconds": { "Type": "Wait", "SecondsPath": "$.timer_seconds", "Next": "lambda_test" }, "lambda_test": { "Type": "Task", "Resource": "arn:aws:lambda:us-east-1:00000000000:function:XXXXXXXX", "End": true } } } This Step Function receives dynamic input data for the Lambda so it's enough flexible to be called for different purposes. I might have some Executions with 1 hour wait, others with 3 hours, and so on. Let's say I will have 5,000 Running Executions of the same

According to Amazon's documentation, step function can be invoked using HTTP API. Step Functions can be accessed and used with the Step Functions console, the AWS SDKs, or an HTTP API. I tried to search the detailed information, but can't seem to find any good ones. Does anyone know how to invoke AWS step function using API gateway, similar to the way it invokes Lambda functions? If you need to call StepFunction from API Gateway, it's now possible and described well in docs: https://docs.aws.amazon.com/step-functions/latest/dg/tutorial-api-gateway.html For Integration Type, choose AWS Service