DeltaDNA.HttpRequest.setHeader C# (CSharp) Method

        internal void setHeader(string field, string value)
        {
            this.headers[field] = value;
        }

        internal static IEnumerator Request(MonoBehaviour caller, EngageRequest request, EngageResponse response)
        {
            string requestJSON = request.ToJSON();
            string url = DDNA.Instance.ResolveEngageURL(requestJSON);

            HttpRequest httpRequest = new HttpRequest(url);
            httpRequest.HTTPMethod = HttpRequest.HTTPMethodType.POST;
            httpRequest.HTTPBody = requestJSON;
            httpRequest.TimeoutSeconds = DDNA.Instance.Settings.HttpRequestEngageTimeoutSeconds;
            httpRequest.setHeader("Content-Type", "application/json");

            System.Action<int, string, string> httpHandler = (statusCode, data, error) => {

                string engagementKey = "DDSDK_ENGAGEMENT_" + request.DecisionPoint + "_" + request.Flavour;
                if (error == null && statusCode >= 200 && statusCode < 300) {
                    try {
                        PlayerPrefs.SetString(engagementKey, data);
                    } catch (Exception exception) {
                        Logger.LogWarning("Unable to cache engagement: "+exception.Message);
                    }
                } else {
                    Logger.LogDebug("Engagement failed with "+statusCode+" "+error);
                    if (PlayerPrefs.HasKey(engagementKey)) {
                        Logger.LogDebug("Using cached response");
                        data = "{\"isCachedResponse\":true," + PlayerPrefs.GetString(engagementKey).Substring(1);
                    } else {
                        data = "{}";
                    }
                }

                response(data, statusCode, error);
            };

            yield return caller.StartCoroutine(Network.SendRequest(httpRequest, httpHandler));
        }