simple state function to perform join with json serialization

join-string.state-function.json

{
    "StartAt": "CreateCliParams",
    "States": {
        "CreateCliParams": {
            "Type": "Pass",
            "Next": "CreateCliParams_ifJoinParams",
            "Parameters": {
                "CliParameterSeparator.$": "$.CliParameterSeparator",
                "CliCurrentParameterSeparator": "",
                "CliParameters.$": "$.CliParameters[*][*]",
                "CliParametersBuffer": "",
                "CliParameterIndex.$": "States.ArrayLength($.CliParameters[*][*])"
            }
        },
        "CreateCliParams_ifJoinParams": {
            "Type": "Choice",
            "Choices": [
                {
                    "Variable": "$.CliParameterIndex",
                    "NumericGreaterThan": 0,
                    "Next": "CreateCliParams_thenJoinParams"
                }
            ],
            "Default": "ExecuteCliCommand"
        },
        "CreateCliParams_thenJoinParams": {
            "Type": "Pass",
            "Next": "CreateCliParams_ifJoinParams",
            "Parameters": {
                "CliParameterSeparator.$": "$.CliParameterSeparator",
                "CliCurrentParameterSeparator.$": "$.CliParameterSeparator",
                "CliParameters.$": "$.CliParameters[1:]",
                "CliParametersBuffer.$": "States.Format('{}{}{}', $.CliParametersBuffer, $.CliCurrentParameterSeparator, States.JsonToString($.CliParameters[0]))",
                "CliParameterIndex.$": "States.MathAdd($.CliParameterIndex, -1)"
            }
        },
        "ExecuteCliCommand": {
            "Type": "Pass",
            "Next": "End",
            "Parameters": {
                "CliCommand.$": "States.Format('bash -c {}', States.JsonToString($.CliParametersBuffer))"
            }
        },
        "End": {
            "Type": "Succeed"
        }
    }
}

params.json

{
  "CliParameters": [["ls"], ["-la", "-w", 1], ["\".\""]],
  "CliParameterSeparator": " "
}