Answer
PUT replaces the entire resource, while PATCH updates only specific fields.
Quick Answer
PUT replaces the entire resource — you send the complete updated object and the server overwrites everything. PATCH partially updates — you send only the fields that changed. PUT is idempotent and clearer for full replacements; PATCH is more efficient when changing a single field in a large object.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ