Amazon States Language Parser

Package aslparser validates and parses the Amazon States Language, that is used for step functions. See https://states-language.net/spec.html for details.

Installation

go get github.com/enginyoyen/aslparser 

Usage

First argument is the file content to be validated, while the second argument is whether it should use strict mode for validation

stateMachine, err := aslparser.Parse(filePath, true)
if !stateMachine.Valid() {
	for _, e := range stateMachine.Errors(){
		fmt.Print(e.Description())
	}
}

Alternatively, ParseFile method uses file path to load and validate

stateMachine, err := aslparser.ParseFile(filePath, true)
if !stateMachine.Valid() {
	for _, e := range stateMachine.Errors(){
		fmt.Print(e.Description())
	}
}

Converting JSON Schema to a static file

JSON schema is converted to an static go file to be included as an executable.

go-bindata -o state_machine_bin.go schemas/state-machine.json schemas/state-machine-strict-arn.json

JSON Schema

JSON Schema file modified and original JSON schemas based on asl-validator by AirWare (https://www.airware.com/). Additionally, test input file are also copied from the repo. See schema files See test files

TODO

• Validate json-path in InputPath, OutputPath and ResultPath
• Extend StateMachine to include complete spec

Licence

Use of this source code is governed by an MIT license that can be found in the LICENSE file.