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Contract-First Integration: Building Scalable Systems With Flyway, OpenAPI, and Kafka
After implementing contract-first integration across three different microservices architectures, I've learned that the biggest bottleneck in distributed systems isn't technical; it's coordination between teams. When Team A waits for Team B to finish their API before starting integration work, you're throwing away weeks of productivity. Contract-first development flips this model. By defining your integration contracts upfront (OpenAPI specs, Avro schemas, database migrations), you enable teams
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