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String Template

String Template generates a dynamic string using Mustache template syntax.

It allows you to:

  • Concatenate values
  • Build JSON payloads
  • Create formatted strings
  • Conditionally include sections

All message parameters are automatically available inside the template as variables.

Parameters​

TEMPLATE​

Mustache template string used to generate the output.

All message parameters are available as variables using:

{{ParameterName}}

Conditional rendering is supported using:

{{#when Condition}}
...
{{/when}}

Required

OUTPUT_PARAM​

Message parameter name that receives the rendered output.

Direction: Out
Default: OUTPUT

Execution Context Behavior​

  1. Reads the template from TEMPLATE.
  2. Builds a context using all current message parameters.
  3. Compiles the Mustache template.
  4. Renders the template using message parameters as variables.
  5. Writes the rendered result to OUTPUT_PARAM.

Example Configuration​

ParameterValue
TEMPLATEtext{"name":"{{NAME}}","age":"{{AGE}}"}
OUTPUT_PARAMREQUEST_BODY

Example Result​

REQUEST_BODY = text{"name":"John","age":"30"}