21 lines
636 B
TypeScript
21 lines
636 B
TypeScript
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import * as functions from 'firebase-functions'
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import * as admin from 'firebase-admin'
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import { Group } from '../../common/group'
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const firestore = admin.firestore()
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export const onUpdateGroup = functions.firestore
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.document('groups/{groupId}')
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.onUpdate(async (change) => {
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const prevGroup = change.before.data() as Group
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const group = change.after.data() as Group
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// ignore the update we just made
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if (prevGroup.mostRecentActivityTime !== group.mostRecentActivityTime)
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return
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await firestore
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.collection('groups')
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.doc(group.id)
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.update({ mostRecentActivityTime: Date.now() })
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})
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