Performing HTTP(S) asynchronous POST requests
In this recipe, we will be adding the sendPostRequest:toUrl:
method to the WebServiceConnectAsynchronous
class that we created in the Performing HTTP(S) asynchronous GET requests recipe. If we follow the HTTP specifications to the letter, we would use the HTTP POST
request when we want to send data to a server for processing. For example, if you fill out an HTTP form (for instance, from a login page), you would submit an HTTP POST
request that contains the form information.
To perform a POST
request, you should have some data to post to the server. This data takes the form of a key-value pair, just like the GET
query request. We also submit the data in the same format as the GET
query request, where ...
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