Mock Rules

Mock rules let a single endpoint return different responses depending on the incoming request. Rules are evaluated in order — the first match wins.

Creating a Rule

From the endpoint detail page, click Add Rule. Each rule has:

• Conditions — what to match on (headers, query params, body)
• Response — the status code and body to return when conditions match

Condition Types

Type	Example	Matches when…
Header	Authorization: Bearer token123	Request header matches the value
Query Parameter	status=active	Query string parameter matches
Body (JSON path)	$.user.role = "admin"	JSON body field matches

Evaluation Order

Rules are checked top-to-bottom. The first rule whose conditions all match is used. If no rules match, the endpoint’s default response is returned.

Example

An endpoint at GET /api/users with two rules:

1. If query param status=active then return 200 with active users JSON
2. If query param status=inactive then return 200 with inactive users JSON
3. Default: return 200 with all users JSON