401 error code when trying to bulk-write to Thingspeak using AT-COMMAND

Hi everyone,

I would like to bulk-write json data to Thingspeak using AT commands (I'm using SIM7600 module). As I want to send a large amount of data at the same time, the json buffer is not enough. So I'm posting from a file. However I always get a 401 error code.

Does someone know why I get this error ?

The whole commands and results are reported below.

Thank you in advance

AT+HTTPINIT

OK

AT+HTTPPARA="URL","https://api.thingspeak.com/channels/<my_channel_id>/bulk_update.json"

OK

AT+HTTPPARA="CONTENT","application/json"

OK

AT+HTTPPOSTFILE="/data.txt",2,1,1

OK

AT+HTTPACTION=1

OK

+HTTPACTION: 1,401,0

+HTTPACTION: 1,401,154

+HTTP_PEER_CLOSED

AT+HTTPREAD=0,1000

OK

+HTTPREAD: DATA,154

{"status":"401","error":{"error_code":"error_auth_required","message":"Authorization Required","details":"Please provide proper authentication details."}}

+HTTPREAD:0

AT+HTTPTERM

OK

Answer 1

[Christopher Stapels]

The bulk endpoint requires a somewhat complex syntax. Check out the bulk JSON update page here. You aren't providing all the correct information, for example AIP key, etc.