Using AT command to Update Property value through GPRS Modem

[mkhalil1]

Dear,

i'm trying to update property value on thingworx through Arduino connected to GPRS modem, i'm using HTTP PUT using AT command as per below, i always get error after last line

AT+CREG?

AT+CGACT?

AT+CMEE=1

AT+CGATT=1

AT+CSTT="etisalat"

AT+CIICR

AT+CIFSR

AT+CIPSTART="TCP","34.202.124.XX","443"

AT+CIPSEND

PUT /Thingworx/Things/etiajmp_mohamedkhalil1711/Properties/mykidname?appKey=58b3eb57-36ef-4f59-aa45-79b60099bXX2 HTTP/1.1

Accept: application/json, */*

Accept-Encoding: gzip,deflate

Connection: keep-alive

Content-Length: 21

Content-Type: application/json

Host: 34.202.124.206

{"mykidname" : "Amr"}

#26

Here is the output i get

AT+CIPSTART="TCP","34.202.124.206","443"

OK

CONNECT OK

TCP connection success

AT+CIPSEND

> PUT /Thingworx/Things/etiajmp_mohamedkhalil1711/Properties/mykidname?appKey=58b3eb57-36ef-4f59-aa45-79b60099b052 HTTP/1.1

Accept: application/json

Accept-Encoding: gzip,deflate

Connection: keep-alive

Content-Length: 21

Content-Type: application/json

Host: 34.202.124.206

User-Agent: HTTPie/0.9.6

{"mykidname" : "Amr"}

#26

ERROR

CLOSED

TCP connection is closed by remote server

Please check and help

[AdamR]

Hi Mohammed,

Being able to use a direct PUT command would require changing the platform subsystem settings to "Allow Request Method Switch" and turn off "Filter Content Type", but this can also open the platform up to cross site scripting vulnerabilities (but it would work).  The other option is to create a custom service on the same thing to save the value to the property and send a POST transaction with the defined service parameter to accept the property value.

Thanks,

Adam

[mkhalil1]

Thanks Adam Ressler​ , i have few comments
1-Why PUT works fine on same thing and property when i use Postman but doesn't when i use AT commands
2-For the other option, if i need to update pressure or Temperature value, do you mean that i have to create many services like
servicepressure1,servicepressure2 ,.....servicepressure100,....then when i need to set property value pressure=50, i have to POST servicepressure50 and when i need to set value to 55, i have to post service servicepressure55,
This would be very time consuming and there is huge probability for errors
3-Lastly, if i change platform subsystem settings, would my code that i put in my earlier poster work, or it needs modification?

[mkhalil1]

adding to my reply,

what if i need to update long/lat property, in this case triggering predefined service wouldn't help

[mkhalil1]

Dear Adam Ressler​ , Here is the latest updates

i changed platform subsystem as per your recommendation

AT+CIPSTART="TCP","34.202.1xx.xx","6725"

AT+CIPSEND

PUT /Thingworx/Things/arduinothing/Properties/mykidname?appKey=c55af751-41e5-4c45-8eb4-9f3e3a86ac99 HTTP/1.1

Accept: application/json, */*

Accept-Encoding: gzip,deflate

Connection: keep-alive

Content-Length: 21

Content-Type: application/json

Host: 217.165.211.74

{"mykidname" : "Amr"}

#26

i still have no update on thingworx when i run the below AT Commands from Arduino

ERROR

CLOSED

TCP connection is closed by remote server

and get above error once i run above command sequence

Please check and help if possible

[mliu-21]

Hi, Mohamed Khalil

Do you solve using HTTP AT or TCP/IP AT command to POST json to Thingworx?

HTTP AT  returned 500 always error code.