What are batched queries in GraphQL?
Batched queries in GraphQL refer to the ability to combine multiple operations into a single network request. This technique optimizes data retrieval by reducing the number of HTTP requests required to fetch related data. Instead of sending separate queries for each piece of data, batched queries enable clients to bundle these queries together into one payload.
Benefits of Batched Queries
- Reduced Latency: By minimizing the number of requests, batched queries can significantly lower the response time, leading to a more efficient application.
- Optimized Bandwidth: Sending fewer requests can help save bandwidth, which is especially beneficial in environments with limited connectivity.
- Simplified Client Logic: Clients can handle multiple queries as a single operation, streamlining the application code and improving maintainability.
How to Implement Batched Queries
Many GraphQL clients support batching out of the box. For example, Apollo Client provides functionality to batch requests through its HTTP Link. On the server side, GraphQL implementations can be configured to recognize batch operations and process them accordingly, typically using a specialized middleware.
In summary, batched queries in GraphQL enhance application performance while simplifying data fetching strategies, making them an essential feature for developers aiming to create efficient APIs.