2018-countdown-update-tree

update-tree.js

function updateTree(userId, drawId, result) {
    return new Promise((resolve, reject) => {
        admin.database().ref(`/drawUpload/${drawId}`).once('value', (snapshot) => {
            try {
                // prepare to update the tree
                if (snapshot && snapshot.val()) {
                    let snapshotFb = snapshot.val();
                    // Update the drawing with the classifications
                    snapshotFb.tags = extractTags(result);
                    // Add the drawing in a new part of tree
                    admin.database().ref(`/draw/${drawId}`).set(snapshotFb)
                        // When it's done, I remove the drawing from it's old path
                        .then(() => admin.database().ref(`/drawUpload/${drawId}`).remove())
                        .then(() => {
                            resolve();
                        })
                        .catch((reason) => {
                            reject(reason);
                        });
                }
            } catch (e) {
                reject(e);
            }
        }, (error) => {
            reject(error);
        });
    });
}