A GraphQL depth limit is a control that restricts how deeply nested a GraphQL query can be before the server rejects it. It matters because GraphQL flexibility can become expensive or abusive when clients request overly deep or complex data trees.
What is GraphQL Depth Limit?
Depth limits help reduce denial-of-service risk, runaway resolver work, and unexpectedly large data traversal. They are commonly paired with cost analysis, field allow rules, and authentication controls for safer GraphQL exposure.
What GraphQL Depth Limit Commonly Supports
Common uses include GraphQL hardening, DoS resistance, query governance, and API performance protection.
GraphQL Depth Limit vs. Unbounded GraphQL Query Complexity
A GraphQL depth limit constrains nested query expansion. Unbounded complexity allows clients to push much more work onto the server.
Frequently Asked Questions
Why does query depth matter?
Because deeper queries can trigger disproportionately large backend work and data exposure.
Is depth limit enough by itself?
No. Breadth, field cost, authorization, and introspection controls still matter too.
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