XMLHtttpRequest sync mode for Web API

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Posted on by bravoss

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For Javascript XMLHtttpRequest was most commonly used and recently we also have been provided with Xrm.WebApi for use with Web API.

Comparing the two XMLHtttpRequest with sync mode is more convenient and we have been using it with Web API for short queries and would like to keep using it to avoid complicated code and effort for change. Since there is some confusion regarding the support for sync going forward I would like to know if we have any guidance in this matter and if this is going to be unsupported and we would be forced to move to an async use in future. Does anyone know and have any reference from MS for this?

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a33ik 84,323 Most Valuable Professional on at

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RE: XMLHtttpRequest sync mode for Web API

Hello,

The problem with sync requests that those block the execution. I haven't heard if Microsoft plans to make sync calls unsupported but the main intention is to move to async execution. Can you please provide any scenarios of why sync is more convenient than async? Promises chaining and usage of async/await resolve a lot of issues.