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url: /snippets/how-to/query-errors-transport.md
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## Errors and transport

The generated hooks call the client operation with `throwOnError: true`, so failures surface through the query library's `error` state, typed from the spec's error responses. Transport concerns (base URL, authentication, interceptors, serialization, validation) live on the client plugin: see the [plugin-fetch](/plugins/plugin-fetch/guide/calling-operations) or [plugin-axios](/plugins/plugin-axios/guide/calling-operations) guides.