Check out example codes for "unity html get request". It will help you in understanding the concepts better.

Code Example 1

// Call Method Through: StartCourotine(SendRequest());

IEnumerator SendRequest() 
{
	UnityWebRequest request = UnityWebRequest.Get("REQUEST_URL");
	yield return request.SendWebRequest();
 
	if(request.isNetworkError || request.isHttpError) {
      	// Error Occurred
		Debug.Log(request.error);
	}
	
  	else {
      	// Response can be accessed through: request.downloadHandler.text
		Debug.Log(request.downloadHandler.text);
	}
}

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