^~~~~ exit status 1 Compilation error: no matching function for call to 'firebase::FirebaseClient::FirebaseClient(const char [44])'

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1

this is my arduino code for esp8266 . i have used firebaseClient library. i encounter errors after compiling. my goal is to take data from a device using esp and display on mobile app. here i have tried to implement esp8266 code using firebaseclient library

#include <ESP8266WiFi.h>
#include <FirebaseClient.h>

// Wi-Fi credentials
const char* ssid = "Redmi ";
const char* password = "vogu";

// Firebase configuration
 FirebaseClient client ("https://< >.firebaseio.com"); // Replace with your Firestore URL

void setup() {
    Serial.begin(115200);
    //connect to wifi
    WiFi.begin(ssid, password);
    Serial.print("Connecting to Wifi");
    while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        Serial.print(".");
    }
    Serial.println("Connected to Wi-Fi");
    }

void writeData(float waterLevel) {
    String documentPath = "sensors/water_level"; // Firestore document path
    String jsonData = "{\"level\": " + String(waterLevel) + "}"; // JSON data format

    if (client.post(documentPath, jsonData)) {
        Serial.println("Data sent successfully");
    } else {
        Serial.println("Error sending data: " + client.error());
    }
}

void readData() {
    String documentPath = "sensors/water_level"; // Firestore document path
    if (client.get(documentPath)) {
        Serial.println("Data retrieved: " + client.responseBody());
    } else {
        Serial.println("Error reading data: " + client.error());
    }
}

void loop() {
    // Placeholder for sending and receiving data
    // Example of how to call the functions
    writeData(75.5); // Example water level
    delay(10000); // Wait for 10 seconds
    readData(); // Read the data
    delay(10000); // Wait for another 10 seconds
}


C:\Users\<-->\AppData\Local\Temp\.arduinoIDE-unsaved2024917-11596-xn4egq.2i22\sketch_oct17a\sketch_oct17a.ino:9:70: error: no matching function for call to 'firebase::FirebaseClient::FirebaseClient(const char [44])'     9 |  FirebaseClient client ("https://<  >.firebaseio.com"); // Replace with your Firestore URL       |                                                                      ^ In file included from C:\Users\< >\AppData\Local\Temp\.arduinoIDE-unsaved2024917-11596-xn4egq.2i22\sketch_oct17a\sketch_oct17a.ino:2: c:\Users\< >\Documents\Arduino\libraries\FirebaseClient\src/FirebaseClient.h:128:9: note: candidate: 'firebase::FirebaseClient::FirebaseClient()'   128 |         FirebaseClient() {}       |         ^~~~~~~~~~~~~~ c:\Users\< >\Documents\Arduino\libraries\FirebaseClient\src/FirebaseClient.h:128:9: note:   candidate expects 0 arguments, 1 provided In file included from C:\Users\< >\AppData\Local\Temp\.arduinoIDE-unsaved2024917-11596-xn4egq.2i22\sketch_oct17a\sketch_oct17a.ino:2: c:\Users\<  >\Documents\Arduino\libraries\FirebaseClient\src/FirebaseClient.h:87:11: note: candidate: 'constexpr firebase::FirebaseClient::FirebaseClient(const firebase::FirebaseClient&)'    87 |     class FirebaseClient : public AppBase       |           ^~~~~~~~~~~~~~ c:\Users\<  >\Documents\Arduino\libraries\FirebaseClient\src/FirebaseClient.h:87:11: note:   no known conversion for argument 1 from 'const char [44]' to 'const firebase::FirebaseClient&' C:\Users\< >\AppData\Local\Temp\.arduinoIDE-unsaved2024917-11596-xn4egq.2i22\sketch_oct17a\sketch_oct17a.ino: In function 'void writeData(float)': C:\Users\< >\AppData\Local\Temp\.arduinoIDE-unsaved2024917-11596-xn4egq.2i22\sketch_oct17a\sketch_oct17a.ino:28:16: error: 'class firebase::FirebaseClient' has no member named 'post'    28 |     if (client.post(documentPath, jsonData)) {       |                ^~~~ C:\Users\<  >\AppData\Local\Temp\.arduinoIDE-unsaved2024917-11596-xn4egq.2i22\sketch_oct17a\sketch_oct17a.ino:31:56: error: 'class firebase::FirebaseClient' has no member named 'error'    31 |         Serial.println("Error sending data: " + client.error());       |                                                        ^~~~~ C:\Users\<  >\AppData\Local\Temp\.arduinoIDE-unsaved2024917-11596-xn4egq.2i22\sketch_oct17a\sketch_oct17a.ino: In function 'void readData()': C:\Users\<  >\AppData\Local\Temp\.arduinoIDE-unsaved2024917-11596-xn4egq.2i22\sketch_oct17a\sketch_oct17a.ino:37:16: error: 'class firebase::FirebaseClient' has no member named 'get'    37 |     if (client.get(documentPath)) {       |                ^~~ C:\Users\< >\AppData\Local\Temp\.arduinoIDE-unsaved2024917-11596-xn4egq.2i22\sketch_oct17a\sketch_oct17a.ino:38:52: error: 'class firebase::FirebaseClient' has no member named 'responseBody'    38 |         Serial.println("Data retrieved: " + client.responseBody());       |                                                    ^~~~~~~~~~~~ C:\Users\<  >\AppData\Local\Temp\.arduinoIDE-unsaved2024917-11596-xn4egq.2i22\sketch_oct17a\sketch_oct17a.ino:40:56: error: 'class firebase::FirebaseClient' has no member named 'error'    40 |         Serial.println("Error reading data: " + client.error());       |                                                        ^~~~~  exit status 1  Compilation error: no matching function for call to 'firebase::FirebaseClient::FirebaseClient(const char [44])'
2

Does this fall in the category of "old code using new library?"

3

I have looked through the Firebase libraries for Arduino, and can find no library called "firebaseClient".

There is a FirebaseClient library (note the capital F) which points to the Github repository. Proper capitalization is important and saves time and confusion in the long run.

However, looking through the Github history for FirebaseClient.h, I could not find any instance in any version where the FirebaseClient constructor took a parameter.

Short of downloading every version of that library and going through every line of the header, it would appear to me that you are using some other Firebase library. One that you did not provide a link to. Would you please rectify that oversight?

4

Yes, I think you are right.

5

I am using FirebaseClient.h

6

And we're just supposed to guess from which library that comes from? I'm done here.