April 08, 2025

Managing Query Depth Limits in GraphQL with Absinthe Middleware

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Managing Query Depth Limits in GraphQL with Absinthe Middleware

Source: tomasztomczyk.com

The content explores how to enforce maximum query depth in Absinthe, a widely used GraphQL library for Elixir. It highlights the challenges presented by GraphQL's capabilities, particularly in preventing excessively deep queries that can lead to performance bottlenecks. The author discusses the implementation of middleware to check and limit query depth by examining the selection structure of queries. The article also covers issues that arise with fragments in GraphQL queries and how to adjust the middleware to accommodate them. The effectiveness of this approach is illustrated through testing and performance benchmarks that indicate minimal overhead introduced by the middleware.

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