The phrase "a user requests" is correct and usable in written English.
It can be used in contexts where you are describing an action taken by a user, typically in technical or customer service scenarios.
Example: "When a user requests assistance, our support team is ready to help them promptly."
Alternatives: "a user asks" or "a user inquires".
Twitter does this when a user requests that his location not be shared, Mr. Paul said.
When a user requests a piece of information, it is delivered like a boat crossing a canal via locks.
The company updates the database by sending its cars to remap certain areas and by using phones as sensors when a user requests location data.
When a user requests the item from the server, the browser can send the ETag stored in its cache back to the server to see whether it matches the latest iteration.
When a user requests a specific application from a cloud-based "app store", the appropriate multicompiler in the store generates a unique version for him, thus making a hacker's task nigh impossible.Dr Franz has already built a prototype that can diversify programs such as Firefox and Apache Linux.
And last year, the malevolent forces of a botnet of things was leveled at the domain name system host Dyn, which is used by thousands of websites to manage the process of pointing computers to the correct files when a user requests a Web page.
User non-personal and/or de-identified information (such as a user's browser software or the page a user requested) may be distributed to third parties to facilitate site analytics.
But as far as most of us are concerned, broadband providers' only responsibility is to carry data that other companies have delivered to them in response to a user request.
A so-called OTF provider receives and processes a user request.
A composition process is able to automatically produce solutions that satisfy a user request.
That way, when a user requested a popular picture, it could come from a computer across town instead of from one on the other side of the globe.
