Method ExtInternet.TryPost

Overload

Sends a POST request to the specified URL, and gets the response. Handles HTTP errors and exceptions.

public static bool TryPost(this HttpClient t, out HttpResponseMessage r, string url, HttpContent content, IEnumerable<string> headers = null, bool printError = false, bool dontWait = false, string auth = null, Action<HttpRequestMessage> also = null)
Parameters
t  (HttpClient)
r  (HttpResponseMessage)

Receives HttpResponseMessage object that can be used to get response content (web page HTML, JSON, file, etc), headers etc. See example. Will be null if failed because of an exception.
url  (string)

URL.
content  (HttpContent)

Data to post. Usually web form data (see internet.formContent) or JSON (see internet.jsonContent). Can be null.
headers  (IEnumerable<string>)

null or request headers like ["name1: value1", "name2: value2"]. Also you can add headers to System.Net.Http.HttpClient.DefaultRequestHeaders, like internet.http.DefaultRequestHeaders.Add("User-Agent", "Script/1.0");.
printError  (bool)

If failed, call print.warning.
dontWait  (bool)
auth  (string)

String like "username:password" for basic authentication. Adds Authorization header.
also  (Action<HttpRequestMessage>)

Can set more properties for the request.
Returns
bool

false if failed.
Exceptions
UriFormatException

Invalid URL format.
Exception

If headers used, exceptions of ExtInternet.AddMany.

Examples

Post form data.

var content = internet.formContent(("name1", "value1"), ("name2", "value2"));
if (!internet.http.TryPost(out var r, "https://httpbin.org/anything", content, printError: true)) return;
print.it(r.Text());

Post object as JSON.

var v = new POINT(1, 2);
if (!internet.http.TryPost(out var r, "https://httpbin.org/anything", internet.jsonContent(v), printError: true)) return;
print.it(r.Text());