Part 4 1 chapter

Reliability: Errors & Partial Results

Return partial data with typed errors so one failing field never takes down the whole response.

Chapter 9

Error handling

How GraphQL reports failure: request errors against execution errors, the anatomy of an error, partial data, a stable extensions.code vocabulary, masking unexpected failures on both stacks, status codes and media types, and the choice between errors[], payload userErrors and result unions.

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