Call CRUD(GET, POST, PUT, DELETE) API using HttpClient in c#

Here We will see how we can call all CRUD methods (GET, PUT, POST, DELETE) with the help of HttpClient in c#.

1. Call POST API :-

string url = "http://localhost:26404/api/POSTAPI";

HttpClient httpClient = new HttpClient();

HttpResponseMessage APIResponse = new HttpResponseMessage();

var obj = new { name = "Amit", age = 26, subject = "c#" };

var objJson = JsonConvert.SerializeObject(obj);

var stringContent = new StringContent(objJson, UnicodeEncoding.UTF8, "application/json");

APIResponse = httpClient.PostAsync(url, stringContent).GetAwaiter().GetResult();

var resultJson = APIResponse.Content.ReadAsStringAsync().GetAwaiter().GetResult();

2. Call GET API :-

string url = "http://localhost:26404/api/GETAPI";

HttpClient httpClient = new HttpClient();

HttpResponseMessage APIResponse = new HttpResponseMessage();

APIResponse = httpClient.GetAsync(url).GetAwaiter().GetResult();

var resultJson = APIResponse.Content.ReadAsStringAsync().GetAwaiter().GetResult();

3. Call PUT API :-

string url = "http://localhost:26404/api/PUTAPI?id=1";

HttpClient httpClient = new HttpClient();

HttpResponseMessage APIResponse = new HttpResponseMessage();

var obj = new { name = "Amit", age = 26, subject = "c#" };

var objJson = JsonConvert.SerializeObject(obj);

var stringContent = new StringContent(objJson, UnicodeEncoding.UTF8, "application/json");

APIResponse = httpClient.PutAsync(url, stringContent).GetAwaiter().GetResult();

var resultJson = APIResponse.Content.ReadAsStringAsync().GetAwaiter().GetResult();

4. Call DELETE API :-

string url = "http://localhost:26404/api/DELETEAPI?id=1";

HttpClient httpClient = new HttpClient();

HttpResponseMessage APIResponse = new HttpResponseMessage();

APIResponse = httpClient.DeleteAsync(url).GetAwaiter().GetResult();

var resultJson = APIResponse.Content.ReadAsStringAsync().GetAwaiter().GetResult();