Kluge new attributes into map service (SOI)

Question

I started with an SOI project and attempting to create an interceptor that will take the contents of a map service (layer 1) and kludge some new attributes from some other JSON I have pulled in another request. Which sample would be closest to what I'd like to attempt? This YouTube Video is doing what I'd like but is in Java and not C# and I'm having difficulty understanding. I have a simple SOI.sln setup and just starting to try and fill in the correct areas. public byte[] HandleRESTRequest(string Capabilities, string resourceName, string operationName, string operationInput, string outputFormat, string requestProperties, out string responseProperties) { responseProperties = null; _serverLog.LogMessage(ServerLogger.msgType.infoStandard, _soiName + ".HandleRESTRequest()", 200, "Request received in Sample Object Interceptor for handleRESTRequest"); /* * Add code to manipulate REST requests here * https://somearcgisserver.com/somesite/rest/services/test/ServiceNameHere/MapServer/1 * https://some3rdpartyapi.com/v1/realtime */ // Find the correct delegate to forward the request too IRESTRequestHandler restRequestHandler = FindRequestHandlerDelegate<IRESTRequestHandler>(); if (restRequestHandler == null) return null; var response = restRequestHandler.HandleRESTRequest( Capabilities, resourceName, operationName, operationInput, outputFormat, requestProperties, out responseProperties); //I think I need to add something here to grab the existing JSON of the mapservice and then kludge the desired attributes into it if (operationName.Equals("query") && resourceName.Equals("layers/1")) { //access the JSON of the map service here //access the JSON of the 3rd party rest service result //kludge the two together on the common attribute they share } return response; //return restRequestHandler.HandleRESTRequest( // Capabilities, resourceName, operationName, operationInput, // outputFormat, requestProperties, out responseProperties); }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

JamesCrandall · Answer

ah ha!  A response!

Thank you a bunch, I've been looking forward to returning to this asap and this looks promising.

nicogis · Answer

with json.net you can write similar code async Task Main() { var httpClient = new HttpClient(); var response = await httpClient.GetAsync($"https://.../MapServer/0/query?where=&text=&objectIds=1%2C2%2C4&time=&geometry=&geometryType=esriGeometryEnvelope&inSR=&spatialRel=esriSpatialRelIntersects&relationParam=&outFields=*&returnGeometry=true&returnTrueCurves=false&maxAllowableOffset=&geometryPrecision=&outSR=&having=&returnIdsOnly=false&returnCountOnly=false&orderByFields=&groupByFieldsForStatistics=&outStatistics=&returnZ=false&returnM=false&gdbVersion=&historicMoment=&returnDistinctValues=false&resultOffset=&resultRecordCount=&queryByDistance=&returnExtentOnly=false&datumTransformation=¶meterValues=&rangeValues=&quantizationParameters=&f=json"); var r = await response.Content.ReadAsStringAsync(); JObject j = JObject.Parse(r); JObject alias = (JObject)j["fieldAliases"]; alias.Add("NewField1", new JValue("NewField 1")); JArray items = (JArray)j["fields"]; items.Add(new JObject() { { "name", "NewField1" }, { "type", "esriFieldTypeString"}, { "alias", "NewField 1" }, { "length", 25 } }); JArray features = (JArray)j["features"]; foreach (var element in features) { //if objectid is 1 field NewField1 add value NewValue if ((int)element["attributes"]["OID"] == 1) { element["attributes"]["NewField1"] = "NewValue"; } .... } j.ToString().Dump(); }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍