Features

Rift provides advanced features for service virtualization and chaos engineering.

Core Features

Mountebank Compatibility

Imposters - Mock HTTP/HTTPS servers
Predicates - Flexible request matching
Responses - Static, proxy, and dynamic responses
Behaviors - Response modification and delays
JavaScript Injection - Dynamic response generation

Rift Extensions (`_rift` Namespace)

Fault Injection - Probabilistic latency, error, and TCP fault injection
Scripting - Rhai, Lua, and JavaScript engines for dynamic behavior
Flow State - Stateful scenarios with InMemory or Redis backends
Stub Analysis - Overlap detection and conflict warnings
Debug Mode - Request matching diagnostics with X-Rift-Debug header
Metrics - Prometheus integration

Feature Overview

Feature	Mountebank	Rift Extensions
HTTP/HTTPS Mocking	✅ Full support	—
Request Matching	✅ Full predicates	—
Static Responses	✅	—
Proxy Recording	✅	—
JavaScript Injection	✅	—
Probabilistic Faults	Via injection	✅ `_rift.fault`
Rhai/Lua Scripting	—	✅ `_rift.script`
Flow State	Via injection	✅ `_rift.flowState`
Stub Analysis	—	✅ `_rift.warnings`
Stub IDs	—	✅ `id` field
Debug Mode	—	✅ `X-Rift-Debug` header
Prometheus Metrics	✅	✅
Config Linting	—	✅ `rift-lint`
Terminal UI	—	✅ `rift-tui`

Feature Documentation

Fault Injection - Latency and error simulation
Scripting - Dynamic behavior with scripts
Stub Analysis - Overlap detection and warnings
Debug Mode - Request matching diagnostics
TLS/HTTPS - Secure connections
Metrics - Prometheus monitoring
Configuration Linting - Validate imposter configs before loading
Terminal UI - Interactive imposter management

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