How can i consume rest api of https kind for POST request in c#
I have rest api of https and i need to send data from crm in json format with 'Post' request. How can i consume and send POST data to them?
Share
Report
All responses (
Answers (
// Set the base address of the API
client.BaseAddress = new Uri("https://api.example.com");
// Set the content to be sent in the request
var content = new StringContent("{ \"key\": \"value\" }", System.Text.Encoding.UTF8, "application/json");
// Send the POST request to the API endpoint
HttpResponseMessage response = await client.PostAsync("/endpoint", content);
// Check if the request was successful
if (response.IsSuccessStatusCode)
{
// Handle the successful response
string responseBody = await response.Content.ReadAsStringAsync();
Console.WriteLine("Response: " responseBody);
}
else
{
// Handle the error response
Console.WriteLine("Error: " response.StatusCode);
}
create an instance of HttpClient, set the base address of the API, and specify the content to be sent in the request body. Then, we use the PostAsync method to send the POST request to the desired endpoint. Finally, we handle the response by checking the IsSuccessStatusCode property and reading the response body if the request was successful.
Hi Shazaz,
You can try the below code which I have used to connect to third party. However I generaly try to access the api from a tool like restclient, postman to confirm the functioning of the api. Sometimes the issue is with the endpoint and we spent time troubleshooting our code.
** Do note that headers/ parameters are dependent on the endpoints so you need to change it accordingly.
===========
var resource = "/v1/lodging/semantic/concepts";
var client = new RestClient("http://connect.reviewpro.com");
client.Proxy = WebRequest.DefaultWebProxy;
client.AddHandler("application/json", new JsonDeserializer());
var request = new RestRequest(resource, Method.GET);
request.RequestFormat = DataFormat.Json;
request.AddQueryParameter("api_key", apiKey);
request.AddQueryParameter("sig", signature);
// Custum query paramters
request.AddQueryParameter("lang", "en");
// execute the request
IRestResponse response = client.Execute(request);
var results = ConvertJSonToObject<List<SemanticsConceptSet>>((string)response.Content);
==============
Hope this helps.
void CallPostMethod(JArray jarray)
{
// Restful service URL
/*string url = */
//consuming third party service need to send data in json and retrieve rsponse, error coming when response coming.
string url = "test.slutions.com/.../verbatim";
// declare ascii encoding
// ASCIIEncoding encoding = new ASCIIEncoding();
Encoding encoding = new UTF8Encoding();
string strResult = string.Empty;
// sample xml sent to Service & this data is sent in POST
//string SampleXml = "SHAHZEB";
JArray jr= jarray;
//string postData = jr.ToString();
Console.WriteLine(jr);
// convert xmlstring to byte using ascii encoding
byte[] data = encoding.GetBytes(jr.ToString());
//string data = jr.ToString();
// declare httpwebrequet wrt url defined above
string data11="Shahzeb";
HttpWebRequest webrequest = (HttpWebRequest)WebRequest.Create(url);
// set method as post
webrequest.Method = "POST";
// set content type
webrequest.Headers.Add("apikey", "PVR1234");
webrequest.ContentLength = data.Length;
// get stream data out of webrequest object
Stream newStream = webrequest.GetRequestStream();
newStream.Write(data, 0, data.Length);
newStream.Close();
// declare & read response from service
HttpWebResponse webresponse = (HttpWebResponse)webrequest.GetResponse(); //error on this line when getting response, 401 error
//webresponse.Headers.Add("apikey", "1234");
// set utf8 encoding
string s = webresponse.ToString();
Encoding enc = System.Text.Encoding.GetEncoding( "utf-8" );
// read response stream from response object
StreamReader loResponseStream =
new StreamReader(webresponse.GetResponseStream(), enc);
// read string from stream data
strResult = loResponseStream.ReadToEnd();
Console.WriteLine(strResult);
Console.ReadKey();
// close the stream object
loResponseStream.Close();
// close the response object
webresponse.Close();
// below steps remove unwanted data from response string
strResult = strResult.Replace("</string>", "");
strResult = strResult.Substring(strResult.LastIndexOf(strResult));
Console.WriteLine(strResult);
Console.ReadKey();
}
Hi,
You can basically use System.Net.WebRequest to POST your data and get response and also please check RestSharp (http://restsharp.org/) library that can helps you to use RESTful APIs with C#
WebRequest webRequest = WebRequest.Create($"{_baseUrl}{request.Endpoint}");
webRequest.Method = "POST";
webRequest.ContentType = "application/json";
StreamWriter writer = new StreamWriter(webRequest.GetRequestStream());
writer.WriteLine(JsonConvert.SerializeObject(YOUR_REQUEST_OBJECT_TO_POST));
writer.Close();
WebResponse webResponse = webRequest.GetResponse();
StreamReader streamReader = new StreamReader(webResponse.GetResponseStream());
var serviceResponse = streamReader.ReadToEnd();
streamReader.Close();
and of course you need to deserialize your "serviceResponse" to your .NET class like below;
var deserializedData = JsonConvert.DeserializeObject<YOUR_RESPONSE_CLASS>(serviceResponse);
#1
André Arnaud de Cal...
291,431
Super User 2024 Season 2
#2
Martin Dráb
230,503
Most Valuable Professional
#3
nmaenpaa
101,156
