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SIM900A Post HTTP headers

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alexor2k

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Hello,

I am using Arduino Uno board with SIM900A GSM Module.
I am trying to send HTTP Post request to a secure server.
All is being received in the server, besides the header, its a secure server, it requires an authorization header.
Below is my code, content header is being received, body data is also being received by the server.
Only authorization header is not getting to the server , please help.

Code:
Serial.println("HTTP get method :");

Serial.print("AT\\r\\n");
GSMModule.println("AT");  /* Check Communication */

Serial.print("AT+SAPBR=3,1,\"CONTYPE\",\"GPRS\"\\r\\n");
GSMModule.println("AT+SAPBR=3,1,\"CONTYPE\",\"GPRS\"");  /* Connection type GPRS */


Serial.print("AT+SAPBR=3,1,\"APN\",\"uinternet\"\\r\\n");
GSMModule.println("AT+SAPBR=3,1,\"APN\",\"uinternet\"");  /* APN of the provider */


Serial.print("AT+SAPBR=1,1\\r\\n");
GSMModule.println("AT+SAPBR=1,1"); /* Open GPRS context */


Serial.print("AT+SAPBR=2,1\\r\\n");
GSMModule.println("AT+SAPBR=2,1"); /* Query the GPRS context */


Serial.print("AT+HTTPINIT\\r\\n");
GSMModule.println("AT+HTTPINIT"); /* Initialize HTTP service */


Serial.print("AT+HTTPSSL=1\\r\\n");
GSMModule.println("AT+HTTPSSL=1"); /* Initialize SSL service */

Serial.print("AT+CMEE=1\\r\\n");
GSMModule.println("AT+CMEE=1"); /* Initialize Errors service */


Serial.print("AT+HTTPPARA=\"CID\",1\\r\\n");
GSMModule.println("AT+HTTPPARA=\"CID\",1");  /* Set parameters for HTTP session */


Serial.print("AT+HTTPPARA=\"URL\",\"42a149e7.ngrok.io/api\"\\r\\n");
GSMModule.println("AT+HTTPPARA=\"URL\",\"42a149e7.ngrok.io/api\"");  /* Set parameters for HTTP session */

Serial.print("AT+HTTPPARA=\"USERDATA\",\"Authorization sr=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX\"");
GSMModule.println("AT+HTTPPARA=\"USERDATA\",\"Authorization sr=XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX\"");  /* Set Content parameters for HTTP session */


Serial.print("AT+HTTPPARA=\"CONTENT\",\"application/json\"");
GSMModule.println("AT+HTTPPARA=\"CONTENT\",\"application/json\"");  /* Set Content parameters for HTTP session */



Serial.print("AT+HTTPDATA=" + String(reading.length()) + ",100000");
GSMModule.println("AT+HTTPDATA=" + String(reading.length()) + ",100000");  /* Set parameters for HTTP session */

Serial.print(reading);
GSMModule.println(reading);  /* Set parameters for HTTP session */


Serial.print("AT+HTTPACTION=1\\r\\n");
GSMModule.println("AT+HTTPACTION=1");  /* Start POST session */


Serial.print("AT+HTTPREAD\\r\\n");
GSMModule.println("AT+HTTPREAD");  /* Read data from HTTP server */


Serial.print("AT+HTTPTERM\\r\\n");
GSMModule.println("AT+HTTPTERM");  /* Terminate HTTP service */


Serial.print("AT+SAPBR=0,1\\r\\n");
GSMModule.println("AT+SAPBR=0,1"); /* Close GPRS context */
 

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