Fairebase.failed() is always true with empty Firebase.error

[vodibe]

Hey, I can't connect to firebase, after any kind of commands (setInt, setFloat, getString ...), firebase.failed() method always returns true with an empty error. Here is what i tried to do:

• I'm using a NodeMCU v3

• Firebase database settings:
  { "rules": { ".read": true, ".write": true } }

• Version of Firebase Arduino Library: 0.3

• Version of ArduinoJson: 5.13.1

• Double checked Firebase_Host, Firebase_Auth, Wifi_SSID, Wifi_PASSWORD

• Here is my code:

#include <Firebase.h>
#include <FirebaseArduino.h>
#include <FirebaseCloudMessaging.h>
#include <FirebaseError.h>
#include <FirebaseHttpClient.h>
#include <FirebaseObject.h>

#include <ArduinoJson.h>
#include <ESP8266WiFi.h>
#include <String.h>

//VARIABILI FIREBASE
#define FIREBASE_HOST "myproj.firebaseio.com/"
#define FIREBASE_AUTH "xxxx"

//VARIABILI ESP8266
#define WIFI_SSID "wifi"
#define WIFI_PASSWORD "password"

String passcode = "";
void setup()
{
Serial.begin(9600);
WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
while (WiFi.status() != WL_CONNECTED)
{
Serial.print(".");
delay(500);
}
Serial.print("\nconnected: ");
Serial.println(WiFi.localIP());

//////////////////////////////////
Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);
delay(500);
}

void loop()
{
passcode = Firebase.getString("user1");
if (Firebase.failed())
{
Serial.println("errore>>");
Serial.println(Firebase.error());
Serial.print(";;"+passcode);
Serial.println("<<");
}

if(Firebase.success())
{
Serial.print("\nserver = "+passcode);
Serial.print("\n###############");
}

delay(2500);
}

[vodibe]

Solved, here is what you have to do:
1 - Close Arduino IDE
2 - Copy firebase host url and generate your own fingerprint here
3 - Copy your own fingeprint (it should be like this XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX ) and copy it in FirebaseHttpClient.h file.
4 - you will have something like this:
... other code ...
static const char kFirebaseFingerprint[] = "XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX:XX";

N.B. do not delete colon (:), just paste the fingerprint

[Mohfarrag]

same issue and the fingerprint work for me, but for clarification.
use the same firebase host url you use in arduino code.
thanks @brearlycoffee

[m4ddySF]

Thanks a lot! This saved me a lot of trouble!

[Eronrhcp]

Muito obrigado, amigo! Funcionou para mim <3