//https://api.mouser.com/api/docs/ui/index#/SearchApi/SearchApi_SearchByKeyword

 public string MouserCreateApiJson(string transistor) {
            string json = "{ \"SearchByKeywordRequest\": { \"keyword\": \""+transistor+"\", \"records\": 0, \"startingRecord\": 0, \"searchOptions\": \"string\", \"searchWithYourSignUpLanguage\": \"string\" }}";
           // json.Replace("{0}", transistor);

           return json;
        }

        public string MouserApiRequest(string json) {
            try
            {
                string content = string.Empty;
                string ResponseStatus;
                string StatusCode;
                string StatusDescription;
                ServicePointManager.SecurityProtocol =  SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;
                string url = _mouser_api_url + "api/v1/search/keyword?apiKey=" + _mouser_api_key;
                var client = new RestClient(url);
                var request = new RestRequest(Method.POST);
                request.RequestFormat = DataFormat.Json;
                request.AddHeader("Content-Type","application/json");
                request.AddJsonBody(json);

                client.ExecuteAsync(request, response =>
                {
                    content = response.Content;
                    ResponseStatus = response.ResponseStatus.ToString();
                    StatusCode = response.StatusCode.ToString();
                    StatusDescription = response.StatusDescription;
                });
                return content;
            }
            catch (Exception ex) {
                Console.WriteLine(ex.Message);
                return string.Empty;
            }
        }