Cloud Functions

Question

使用云功能，我想在午夜删除某些文档(我使用的是pubsub)。查询文档后如何删除?

export const taskDeletion = functions.pubsub.schedule('0 0 * * *')
    .onRun((context) => {
        const query = db.collection('tasks')
            .where('dailyTask', '==', false)
            .where('completed', '==', true);
        const tasks = query.get();
        
    });

Answer 1

使用对文档的引用并删除它们

// using an async function
const tasks = await query.get();
const del_ops = tasks.docs.map(doc => doc.ref.delete())
await Promise.all(del_ops)
//continue