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Is API synchronous or asynchronous?
An API may be synchronous where data or service availability, resources and connectivity are high and low latency is a requirement. An API may be asynchronous where data or service availability and connectivity are low or oversaturated with demand.
Is HTTP request is synchronous or asynchronous?
HTTP is a synchronous protocol. The client sends a request and waits for a response from the service. That’s independent of the client code execution that could be synchronous (thread is blocked) or asynchronous (thread isn’t blocked, and the response will reach a callback eventually).
What is synchronous and asynchronous API?
Synchronous means that you call a web service (or function or whatever) and wait until it returns – all other code execution and user interaction is stopped until the call returns. Asynchronous means that you do not halt all other operations while waiting for the web service call to return.
Why is an asynchronous request needed In an API?
Asynchronous requests are useful in maintaining functionality in an application rather than tie up application resources waiting on a request. An API may be synchronous where data or service availability, resources and connectivity are high and low latency is a requirement.
Is the HTTP protocol synchronous or asynchronous?
HTTP is synchronous in the sense that every request gets a response, but asynchronous in the sense that requests take a long time and that multiple requests might be processed in parallel. Therefore, many HTTP clients and servers are implemented in an asynchronous fashion, but without offering an asynchronous API.
What happens when you make a synchronous request?
Synchronous requests block the execution of code which causes “freezing” on the screen and an unresponsive user experience. If you use an asynchronous XMLHttpRequest , you receive a callback when the data has been received.
Why is it difficult to make PHP API synchronous?
This may be difficult for several reasons: Network timeouts and interruptions may disrupt the request. The client must not shut down or cancel the request, which may be difficult for certain clients, e.g. it’s not the default modus operandi for PHP.