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const admin = require("firebase-admin"); | |
process.env["FIRESTORE_EMULATOR_HOST"] = "localhost:8080"; | |
const serviceAccountKey = require("./serviceAccountKey.json"); | |
admin.initializeApp({ | |
credential: admin.credential.cert(serviceAccountKey), | |
databaseURL: `https://${serviceAccountKey.project_id}.firebaseio.com`, | |
}); |
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function countListener(onCountChange: (count: number) => void) { | |
const query = firebase.firestore().collection("fruits"); | |
let count = 0; | |
return query.onSnapshot(snapshot => { | |
snapshot.docChanges().forEach(change => { | |
if (change.type === "added") onCountChange(++count); | |
if (change.type === "removed") onCountChange(--count); | |
}); | |
}); | |
} |
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async function attendCourse(studentId, courseId) { | |
const attendingRef = db.doc(`students/${studentId}/attending/${courseId}`); | |
const attendeeRef = db.doc(`courses/${courseId}/attendees/${studentId}`); | |
const batch = db.batch(); | |
batch.set(attendingRef, {}); | |
batch.set(attendeeRef, {}); | |
await batch.commit(); | |
} |
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rules_version = '2'; | |
service cloud.firestore { | |
match /databases/{database}/documents { | |
match /junction_student_course/{junctionId} { | |
allow read: | |
if request.auth != null | |
&& request.auth.uid == resource.data.studentId; | |
allow create: | |
if request.auth != null |