46 lines
1.3 KiB
TypeScript
46 lines
1.3 KiB
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 { FieldValue } from 'firebase-admin/firestore'
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export const onDeleteContractFollow = functions.firestore
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.document('contracts/{contractId}/follows/{userId}')
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.onDelete(async (change, context) => {
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const { contractId } = context.params as {
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contractId: string
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}
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const firestore = admin.firestore()
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const contract = await firestore
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.collection(`contracts`)
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.doc(contractId)
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.get()
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if (!contract.exists) throw new Error('Could not find contract')
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await firestore
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.collection(`contracts`)
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.doc(contractId)
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.update({
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followerCount: FieldValue.increment(-1),
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})
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})
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export const onCreateContractFollow = functions.firestore
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.document('contracts/{contractId}/follows/{userId}')
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.onCreate(async (change, context) => {
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const { contractId } = context.params as {
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contractId: string
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}
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const firestore = admin.firestore()
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const contract = await firestore
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.collection(`contracts`)
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.doc(contractId)
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.get()
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if (!contract.exists) throw new Error('Could not find contract')
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await firestore
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.collection(`contracts`)
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.doc(contractId)
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.update({
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followerCount: FieldValue.increment(1),
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})
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})
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