AT commands to Update Property value through Arduino+ESP8266

Question

I'm trying to update property value on Thingworx through Arduino connected to ESP8266mod,by using HTTP PUT with AT commands. I managed to test updating in Postman and it works fine.
 
1. I only manage to connect to thingworx with AT+CIPSTART="UDP","XX.XX.XX.XX","8080"
    When I use AT+CIPSTART="TCP","XX.XX.XX.XX","8080" it hangs for a bit and i get ERROR.
    (TCP works when connecting to Academic but not Trial)
 
2. Can anyone give me example how would  AT+CIPSEND data package look like?
    My guess is something like:
 
    AT+CIPSEND=0,226
    PUT /Thingworx/Things/TestThing/Properties/TestValue?appKey=xxxxxxxxxxxxxxxxxxxxxx HTTP/1.1    Accept: application/json     Content-Type: application/json    Host: XX.X.XX.X    {"TestValue" : "15"}    #26
   But all i get is SEND OK 
 
   Thanks in advance.

Rick-Stanley · Accepted Answer

Your PUT message is pretty close, but I see a couple of problems.You must have an empty line after the headers and before the body of your put ( 

\ )You are missing a Content-Length header. I am not positive it is required if your client closes the connection after sending the message, but it is a good idea to send itThe Developer Portal 30 day hosted servers use https on the default port 443. I don't know if your device can make an https connection This guide has an example working PUT command:https://developer.thingworx.com/resources/guides/rest-api-how-guide/property-values-rest-api-how

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