Node.js

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:

Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    // 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.
    var fac = new chilkat.FileAccess();
    var accessToken = fac.ReadEntireTextFile("qa_data/tokens/firebaseToken.txt","utf-8");
    if (fac.LastMethodSuccess !== true) {
        console.log(fac.LastErrorText);
        return;
    }

    var rest = new chilkat.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.  
    success = rest.Connect("chilkat.firebaseio.com",443,true,true);
    if (success !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    var authGoogle = new chilkat.AuthGoogle();
    authGoogle.AccessToken = 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"

    var jsonResponse = rest.FullRequestNoBody("DELETE","/pig-rescue/animal/-KI3pT33wKauiMxY4QTB.json");
    if (rest.LastMethodSuccess !== true) {
        // 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.)
        console.log(rest.LastErrorText);
        return;
    }

    // Check the response status code.   A 200 response status indicates success.
    if (rest.ResponseStatusCode !== 200) {
        console.log(rest.ResponseStatusText);
        console.log(jsonResponse);
        console.log("Failed.");
        return;
    }

    console.log("Success.");

}

chilkatExample();