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Understanding OData.Etag in Postman and Related Features

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#postman

Dynamics 365 Intelligent Order Management

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Nov 8, 2024

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  • Open Data Protocol (oData) is a web protocol that simplifies data exchange between clients and servers.
  • ETags are part of the HTTP protocol and serve as a version identifier for a resource.
  • oData.ETag in Postman helps maintain data integrity during updates.
  • Fetching an ETag involves looking for the ETag header in the response of a GET request.
  • Updating a resource with ETag requires including the ETag in the If-Match header of a PUT or PATCH request.
  • ETags are useful in REST APIs for conditional requests, CORS preflight requests, caching strategies, and error handling.
  • Understanding oData.ETag in Postman is crucial for developers working with RESTful APIs.
  • Leveraging ETags can ensure safe and efficient data updates, manage caching, and improve overall API interactions.

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