https 400 bad request error while fetch firebase json data

[droidalfa]

// this project firebase json http get request example but I get 400 bad request error when pulling data // my aim is to print firebase json data to serial monitor but html texts are coming to serial monitor i want json data to come // How we can solve this problem

define TINY_GSM_MODEM_SIM800

define TINY_GSM_RX_BUFFER 256

include

include

include

const char apn[] = "internet"; // GPRS APN const char gprsUser[] = ""; // GPRS user const char gprsPass[] = ""; // GPRS şifre

const char host[] = "abcd-7892d-default-rtdb.firebaseio.com"; const char path[] = "/message.json"; const int port = 443;

SoftwareSerial SerialAT(10, 11); // RX, TX pin

TinyGsm modem(SerialAT); TinyGsmClient client(modem);

void setup() { Serial.begin(9600); SerialAT.begin(9600); delay(1000);

if (modem.restart()) { Serial.println((F("System starting..."))); } // GPRS connection create if (!modem.gprsConnect(apn, gprsUser, gprsPass)) { Serial.println((F("GPRS connection error :-( "))); return; } else { Serial.println((F("GPRS connection done :-) "))); IPAddress local = modem.localIP(); Serial.print((F("Local IP: "))); Serial.println(local); } delay(5000); }

void loop() { // http get fetch path Serial.println("HTTP GET fetch data..."); if (client.connect(host,port)) { client.print(F("GET")); client.print(path); client.println(F(" HTTP/1.1")); client.print("Host:"); client.print(host); client.println(F("Accept: application/json")); client.println(F("Cache-Control: no-cache")); client.println(); } else { Serial.println("Connection error :-("); }

// fetch data show serial monitor while (client.connected()) { String line = client.readStringUntil('\n'); Serial.println(line); } // 10 second wait delay(10000); }

/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // Serial Monitor Output

System starting... GPRS connection done :-) Local IP: 100.92.154.31 HTTP GET fetch data... HTTP/1.1 400 Bad Request

Server: nginx

Date: Sun, 05 Mar 2023 09:52:39 GMT

Content-Type: text/html

Content-Length: 150

Connection: close

Strict-Transport-Security: max-age=31556926; includeSubDomains; preload

400 Bad Request

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nginx