OKHttp is an easy to use http library with very few dependencies. It is also the provided library that loadcoder uses to generate loadtests.

Create the OKHttp client like this:

OkHttpClient client = new OkHttpClient();

Below shows how to create and send a request, with HTTP verb, body and headers set.

RequestBody body = RequestBody.create(MediaType.get("application/x-www-form-urlencoded; charset=UTF-8"), "http body");
Request req = new Request.Builder().url("https://localhost:8080/")
	.method("POST", body)
	.header("accept", "*/*")
Response resp = client.newCall(req).execute();

OkhttpClient will default follow redirects (HTTP 302). If you wish to disable this, you can do this by using the Builer methods below with the parameter false

OkHttpClient client = new OkHttpClient.Builder()


If you want to call an endpoint over TLS, you need to create the RestTemplate so that it accepts the server certificate. There are a number of ways to do this.

Maven dependencies

Here are the Maven dependencies you need to use OKHttp as the client library for your load tests