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Firebase POST - Pushing Data (JSON Object)

See more Firebase Examples

Uses the POST method to append a new record (JSON Object) at a particular location in the database. Firebase automatically generates the push ID and returns it in the response. The data used in this example is at Chilkat Firebase Pigs Database, and is shown here:

Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // Push a new record to a Firebase JSON database using the POST HTTP method.

    // 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.
    const fac = try chilkat.FileAccess.init();
    defer fac.deinit();
    const access_token = fac.readEntireTextFile(alloc, "qa_data/tokens/firebaseToken.txt", "utf-8") catch {
        std.debug.print("{s}\n", .{try fac.getLastErrorText(alloc)});
        return;
    };

    const rest = try chilkat.Rest.init();
    defer rest.deinit();

    // 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.
    rest.connect("chilkat.firebaseio.com", 443, true, true) catch {
        std.debug.print("{s}\n", .{try rest.getLastErrorText(alloc)});
        return;
    };

    const auth_google = try chilkat.AuthGoogle.init();
    defer auth_google.deinit();
    auth_google.setAccessToken(access_token);
    rest.setAuthGoogle(auth_google) catch {};

    // 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 add a new pig with four name/value pairs:
    const pig_record = try chilkat.JsonObject.init();
    defer pig_record.deinit();
    pig_record.appendString("name", "William") catch {};
    pig_record.appendString("species", "pot belly pig") catch {};
    pig_record.appendString("type", "Mike's Herd") catch {};
    pig_record.appendString("birth", "March, 2001") catch {};

    const json_response = rest.fullRequestString(alloc, "POST", "/pig-rescue/animal.json", try pig_record.emit(alloc)) catch {
        // 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.)
        std.debug.print("{s}\n", .{try rest.getLastErrorText(alloc)});
        return;
    };

    // Check the response status code.   A 200 response status indicates success.
    if (rest.getResponseStatusCode() != 200) {
        std.debug.print("{s}\n", .{try rest.getResponseStatusText(alloc)});
        std.debug.print("{s}\n", .{json_response});
        std.debug.print("Failed.\n", .{});
        return;
    }

    // Get the push ID generated by Firebase
    const resp = try chilkat.JsonObject.init();
    defer resp.deinit();
    resp.load(json_response) catch {};
    const push_id = try resp.stringOf(alloc, "name");
    std.debug.print("Added record with push ID {s}\n", .{push_id});
    std.debug.print("Success.\n", .{});
}