Firestore CRUD Cheat Sheet

firestore-guide.js

// Setup Firestore. Note that all of these will be asyncronous tasks and can have a .then attached. Write in a config process for Firebase. Include the necessary process.env files and instructions how to make a .env file.

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// Add data - C
firestore.collection("CollectionName").add({
	key: value,
	key: value,
})

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// Getting data - R
firestore.collection("CollectionName").get().then((snapshot) => {snapshot.docs.map(doc => {
	console.log(doc)
	})
});

!!------------------------!!
// If you require a search query
	
firestore.collection("CollectionName").where("key", "==", "value").get();


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// Update data - U 
firestore.collection("CollectionName").doc(ID).update({
	key: newValue
});

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// Deleting data - D
firestore.collection("CollectionName").doc(ID).delete()

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Please include getting data from a single document.

`var docRef = db.collection("cities").doc("SF");

docRef.get().then(function(doc) {
if (doc.exists) {
console.log("Document data:", doc.data());
} else {
// doc.data() will be undefined in this case
console.log("No such document!");
}
}).catch(function(error) {
console.log("Error getting document:", error);
});`