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Saga Pattern: The Secret to Seamless Microservices Transactions
In this article, we’ll explore the Saga Pattern: when and why to use it, its benefits and drawbacks, and practical examples of its real-world application
Micro services provide flexibility and scalability by breaking apps into independent services. Managing transactions across these services can be challenging, as traditional ACID transactions don’t fit well with distributed systems. The Saga Pattern ensures data consistency across multiple services.
When to Use the Saga Pattern
The Saga Pattern is particularly useful in scenarios where:
- Multiple Services: Your system is composed of multiple microservices, each responsible for its own database.
- Complex Transactions: Business processes involve transactions that span across these different services.
- Data Consistency: Maintaining data consistency is crucial without relying on traditional distributed transactions.
Example Scenario: Imagine you’re building an e-commerce platform where customer credit limits must be managed across different services. Orders and customer data are stored in separate databases owned by different services. Here, ACID transactions are not feasible, making the Saga Pattern a suitable choice.
