Java

Firebase DELETE - Removing Data

See more Firebase Examples

Uses the DELETE method to delete data. The data used in this example is at Chilkat Firebase Pigs Database, and is shown here:

Chilkat2 Java

import com.chilkatsoft.chilkat2.AuthGoogle;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.FileAccess;
import com.chilkatsoft.chilkat2.Rest;

public class ChilkatExample {

    public static void main(String[] args) {
        // Uses the DELETE method to delete a Firebase record.

        // This example requires the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        // This example assumes a JWT authentication token, if required, has been previously obtained.
        // See Get Firebase Access Token from JSON Service Account Private Key for sample code.

        // Load the previously obtained Firebase access token into a string.
        FileAccess fac = new FileAccess();
        String accessToken;
        try {
            accessToken = fac.readEntireTextFile("qa_data/tokens/firebaseToken.txt", "utf-8");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        Rest rest = new Rest();

        // Make the initial connection (without sending a request yet).
        // Once connected, any number of requests may be sent.  It is not necessary to explicitly
        // call Connect before each request.
        try {
            rest.connect("chilkat.firebaseio.com", 443, true, true);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        AuthGoogle authGoogle = new AuthGoogle();
        authGoogle.setAccessToken(accessToken);
        rest.setAuthGoogle(authGoogle);

        // Chilkat's sample data (pig-rescue data) is publicly readable at: https://chilkat.firebaseio.com/.json
        // This data is publicly readable, but not writable.  You'll need to
        // run against your own database..

        // We're going to delete a pig we previously added.  The push ID of that pig was -KI3pT33wKauiMxY4QTB,
        // so the path will be "/pig-rescue/animal/-KI3pT33wKauiMxY4QTB.json"

        String jsonResponse;
        try {
            jsonResponse = rest.fullRequestNoBody("DELETE", "/pig-rescue/animal/-KI3pT33wKauiMxY4QTB.json");
        } catch (ChilkatException e) {
            // Something happened in the communications (either no request was sent, or no response was received.
            // (The Chilkat REST API also has lower-level methods where an app can send the request in one call,
            // and then receive the response in another call.)
            System.out.println(e.getLastErrorText());
            return;
        }

        // Check the response status code.   A 200 response status indicates success.
        if (rest.getResponseStatusCode() != 200) {
            System.out.println(rest.getResponseStatusText());
            System.out.println(jsonResponse);
            System.out.println("Failed.");
            return;
        }

        System.out.println("Success.");
    }
}