I have initialised a serverless application using aws-go-mod template. I want to define step functions with lambda functions associated with it. If we use nodejs we can simply use the plugin serverless-step-functions to define the workflow. As I am using golang for the development of the handlers serverless-step-functions is not available. To make use of the plugin what I have done is, I have initialised a npm using npm init -y within the root directory where I have the serverless.yml file and installed the plugin using npm install --save-dev serverless-step-functions. After that I include the below line to the serverless.yml file.
plugins:
- serverless-step-functions
Defined the step functions as below.
service: golangstepfunctions
frameworkVersion: '3'
provider:
name: aws
runtime: go1.x
plugins:
- serverless-step-functions
package:
patterns:
- '!./**'
- ./bin/**
functions:
hello:
handler: bin/hello
world:
handler: bin/world
stepFunctions:
stateMachines:
storeCheckoutFlow:
name: storeCheckoutFlow
definition:
StartAt: checkInventory
States:
checkInventory:
Type: Task
Resource:
Fn::GetAtt: [hello, Arn]
ResultPath: '$.book'
Next: calculateTotal
calculateTotal:
Type: Task
Resource:
Fn::GetAtt: [world, Arn]
ResultPath: '$.check'
End: true
When I deploy this everything is working fine. I can't understand how serverless-step-functions plugin is working within the go runtime. What I understand is irrespective of the runtime serverless-step-functions plugins simply convert the stepfunctions definitions within the serverless.yml file to Amazon State Langugae.
How all these are working ? Is this the correct way to do this ?
I've attached the screenshot of the folder structure
