Mock Rules

URL pattern

Specify a pattern that matches the request URL. You can use wildcards (* and **).

# Exact match
https://api.example.com/users

# Single-segment wildcard
https://api.example.com/users/*

# Multi-segment wildcard
https://api.example.com/**

# Match by path only, on any host
/api/users/**

# Domain wildcard
https://*.example.com/api/*

• A pattern starting with http:// or https:// is matched against the whole URL, host included. A pattern starting with / is matched against the path (and query) only, on any host.
• * does not cross /. Use ** to match across multiple segments.
• The whole path has to match; it is not a prefix match. /api/users/* matches /api/users/42 but not /api/users/42/posts.
• A trailing slash is significant: /api/users and /api/users/ are different paths.
• Case is ignored for ASCII characters only.
• The query is checked only when the pattern has one, and then as a subset: the parameters you wrote must be present in the request. A pattern without a query ignores the request's query.

HTTP method

Specify the HTTP method to match.

Selecting "All methods" matches every HTTP method.

Status code

Specify the status code of the response. Common codes are available as presets, and selecting "Custom" at the end of the list lets you enter any code from 100 to 599 directly.

Response headers

Specify the response headers in JSON format.

{
  "Content-Type": "application/json",
  "Cache-Control": "no-cache"
}

Response body

Set the response body. You can specify it in any format, such as JSON, text, or HTML.

{
  "id": 1,
  "name": "John Doe",
  "email": "john@example.com"
}

Delay (milliseconds)

Specify the delay in milliseconds before the response is returned. Use it to test network latency and timeout handling.