2018-countdown-cloudfunction

cloud-function.js

/**
 * Method trigger when an image is upload
 */
exports.detectImage = functions.storage.object().onChange(event => {
    const object = event.data; // The Storage object.

    const fileBucket = object.bucket; // The Storage bucket that contains the file.
    const filePath = object.name; // File path in the bucket.
    const contentType = object.contentType; // File content type.
    const resourceState = object.resourceState; // The resourceState is 'exists' or 'not_exists' (for file/folder deletions).
    const metageneration = object.metageneration; // Number of times metadata has been generated. New objects have a value of 1.

    ...
    try {
        const userId = path.dirname(filePath).split(path.sep).pop();
        const drawId = path.basename(filePath, '.jpg');

        return prediction.predictPromise(event)
            .then((result) => {
                console.log('Got result for drawId : ' + drawId);
                return updateTree(userId, drawId, result);
            })
            .catch((err) => {
                console.log('Error trapped !');
                console.error(err);
                return updateTree(userId, drawId);
            });;
    } catch (e) {
        console.log('Error trapped by catch !');
        console.error(e);
    }
    return;
});