Pact
The home of Consumer-Driven Contract Testing.
Overview
Pact is a code-first tool for Consumer-Driven Contract Testing. It allows API consumers to define a 'contract' for an API provider. During the consumer's tests, Pact generates mock services based on this contract. The contract is then shared with the provider to verify they meet the consumer's expectations.
✨ Key Features
- Consumer-Driven Contract Testing
- Generates mock services from contracts
- Verifies contracts against the provider
- Pact Broker for sharing contracts
- Libraries for many languages (Ruby, Java, .NET, JS, etc.)
🎯 Key Differentiators
- Focus on Consumer-Driven Contract Testing methodology
- Broad language support
- Mature ecosystem with the Pact Broker for contract management
Unique Value: Provides confidence in microservice integrations by ensuring that consumers and providers adhere to a shared contract, preventing breaking changes.
🎯 Use Cases (3)
✅ Best For
- Contract testing in a microservices environment
- Generating provider-verified mocks for consumer tests
💡 Check With Vendor
Verify these considerations match your specific requirements:
- General-purpose API mocking for frontend development
- Exploratory API testing
🏆 Alternatives
Focuses on verifying interactions (contracts) rather than just providing static mocks, leading to more reliable tests.
💻 Platforms
✅ Offline Mode Available
🔌 Integrations
🛟 Support Options
- ✓ Email Support
- ✓ Dedicated Support (PactFlow Enterprise tier)
💰 Pricing
✓ 14-day free trial
Free tier: Open-source framework is free. PactFlow has a free tier.
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