How to stream data from firebase with ESP32 connected to GSM module SIM A7670C..?

Projects Programming
1

I am using SIM A7670C GSM module connected to ESP32 Serial 2 and able to make the HTTP connection.
Below is the code I have written to open net as per AT_Commands of the A7670C.

How do I stream data from firebase instead of using GET command to save data uselessly?

include <HardwareSerial.h>
  // Hardware Serial 2 pins
  #define RXD2 16
  #define TXD2 17

HardwareSerial  MODEM(2);

const String APN  = "airtelgprs.com";
const String USER = "";
const String PASS = "";

const String FIREBASE_HOST  = "My_Project_link";
const String FIREBASE_SECRET  = "DB_Secret";

void setup() {
Serial.begin(115200);
MODEM.begin(115200, SERIAL_8N1, RXD2, TXD2); 

Serial.println("Initializing MODEM...");
  sendATCommand("AT", 2000);
  sendATCommand("AT+CREG?", 2000); // Network registration
  sendATCommand("AT+CGATT=1", 2000); // GPRS attach
  sendATCommand("AT+NETOPEN", 5000); // Open network
  sendATCommand("AT+IPADDR", 2000); // Check IP
}

void loop(){

}
2

Does firebase have an option to stream data?

4

Yes, Firebase offers streaming capabilities for both Realtime Database and Cloud Firestore. Specifically, the Realtime Database supports streaming via the REST API using Server-Sent Events (SSE) or EventSource. Cloud Firestore allows you to listen for changes in data using a stream of snapshots, effectively creating a live stream of data updates.

Answer by google AI

5

Was this ever answered? Did you find out how to stream from Firebase?

6

Use the A7670C in PPP mode so your ESP32 gets a data connection, connect via WiFiClientSecure, then use Firebase REST API to read/write data. Send GET/PUT/PATCH requests in a loop to “stream” updates. Make sure to include your Firebase URL + API key and keep SSL enabled.