Step functions convert string to number

Question

Is there a way in an aws step function to convert a string to a number?

I have a query param that is passed from api gateway to the step function. It is a string with a numeric value. I would like to cast the string to a number in the step function state language, but so far no luck.

ehwang · Accepted Answer · 2022-10-07 23:31:29Z

9

There isn't a native solution for Step Functions to achieve this yet. Another workaround would be to use a simple lambda to convert the type.

Edit: A native workaround would be to use the intrinsic function States.StringToJson

e.g.

"NumberValue.$": "States.StringToJson("$.numberAsString")"

edited Oct 7, 2022 at 23:31

answered Oct 6, 2022 at 19:31

ehwang

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