Rift is a high-performance mock server designed for HTTP/HTTPS, compatible with Mountebank and built using Rust. It enhances testing by delivering 2-250x better performance compared to traditional solutions, allowing users to utilize existing Mountebank configurations while enjoying significantly faster test execution.

Key Features

• Mountebank Compatibility: Use the same REST API, configuration files, and behaviors as Mountebank without modifications. This critical compatibility allows seamless integration and migration.

• Exceptional Performance: Rift boasts remarkable performance improvements:

  Feature	Mountebank	Rift	Speedup
  Simple stubs	1,900 RPS	39,000 RPS	20x faster
  JSONPath predicates	107 RPS	26,500 RPS	247x faster
  XPath predicates	169 RPS	28,700 RPS	170x faster
  Complex predicates	900 RPS	29,300 RPS	32x faster

• Comprehensive Feature Set: Supports various functionalities, including imposters for HTTP/HTTPS mock servers, a wide variety of predicates, responses, behaviors, and proxy modes for recording and replaying requests.

Quick Start

Rift can be run via Docker, allowing for straightforward setup and configuration. Users can create their first imposter with a simple command:

curl -X POST http://localhost:2525/imposters \  
  -H "Content-Type: application/json" \  
  -d '{"port": 4545, "protocol": "http", "stubs": [{"predicates": [{"equals": {"path": "/hello"}}], "responses": [{"is": {"statusCode": 200, "body": "Hello, World!"}}]}]}'

It is also possible to load existing Mountebank configuration files seamlessly.

Extensive Documentation

Rift is equipped with comprehensive documentation that covers installation options, configuration guidance, and feature descriptions to facilitate user onboarding and effective use of the tool.

Explore topics such as:

• Installation
• Mountebank Compatibility
• Configuration

Rift also includes tools for managing mock servers through a Terminal UI, verifying stubs and linting configuration files, further enhancing the user experience.

In summary, Rift offers a robust and efficient solution for developers seeking a high-performance mock server that integrates seamlessly with existing systems while providing exceptional speed and flexibility.