add user-agent header to rest sharp client in csharp

To add a user-agent header to a RestSharp client in C#, you can use the AddOrUpdateParameter method of the RestRequest object.

main.cs
using RestSharp;

var client = new RestClient("https://api.example.com");

var request = new RestRequest("resource", Method.GET);

request.AddOrUpdateParameter("User-Agent", "my-user-agent-value");

var response = client.Execute(request);
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In the example above, we create a new RestSharp client with the base URL of the API we want to consume. We then create a new RestRequest object with the endpoint and HTTP method we want to use.

To add the User-Agent header to the request, we call the AddOrUpdateParameter method on the request object and pass in the key "User-Agent" and the value we want to use as the header value.

Finally, we execute the request using the client's Execute method and capture the response in the response variable for further processing.