refactor(fetch): implement immutable builder and full-cycle middleware #1
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Description
Immutable
FetchBuilder: The is now immutable. Methods like or return a new cloned instance instead of mutating the existing one, preventing side effects and making the builder safer to reuse.Full-Cycle
Middleware: A new middleware system based on the pattern has been implemented. This allows middleware to inspect and modify both the request and the response, enabling features like logging, caching, and authentication.Lazy Response Parsing: The now receives a function to parse the JSON body () instead of an already-resolved JSON object. This gives developers full control over the raw object, allowing for conditional parsing and better error handling.
Intelligent Body Handling: The request body serialization logic has been improved to automatically set the header for JSON objects and pass other body types through unmodified.
Type of Change
Checklist