Template Variables

Template Variables

Template variables let you generate dynamic, realistic data in your mock responses. Use double curly braces: {{variableName}}.

Basic Usage

In your response body:

{
  "id": "{{uuid}}",
  "name": "{{name}}",
  "email": "{{email}}"
}

Each request generates fresh random data.

Request Data

Access data from the incoming request:

Variable	Description	Example
{{params.id}}	Path parameter	/users/{id} -> {{params.id}}
{{query.page}}	Query string	?page=2 -> {{query.page}}
{{body.name}}	Request body field	JSON body access
{{headers.authorization}}	Request header	Header value

Available Helpers

Identity

Helper	Output
{{uuid}}	a1b2c3d4-e5f6-7890-...
{{name}}	John Smith
{{firstName}}	John
{{lastName}}	Smith
{{username}}	jsmith42

Contact

Helper	Output
{{email}}	[email protected]
{{phone}}	(555) 123-4567

Location

Helper	Output
{{address}}	123 Main St
{{city}}	San Francisco
{{state}}	California
{{zipCode}}	94102
{{country}}	United States

Business

Helper	Output
{{company}}	Acme Corp
{{jobTitle}}	Software Engineer

Internet

Helper	Output
{{url}}	https://example.com/page
{{domain}}	example.com
{{ipv4}}	192.168.1.1

Date & Time

Helper	Output
{{date}}	2026-01-15
{{timestamp}}	1737043200
{{pastDate}}	Date in the past
{{futureDate}}	Date in the future

Numbers

Helper	Output
{{number 1 100}}	Random integer 1-100
{{float 0 1 2}}	Random float with 2 decimals
{{boolean}}	true or false

Text

Helper	Output
{{lorem}}	Lorem ipsum paragraph
{{sentence}}	Random sentence
{{word}}	Random word

Arrays with Repeat

Generate arrays of items:

[
  {{#repeat 5}}
  {
    "id": "{{uuid}}",
    "name": "{{name}}"
  }{{#unless @last}},{{/unless}}
  {{/repeat}}
]

Generates an array of 5 user objects.

Full Reference

See Template Helpers Reference for the complete list.