- add test for transaction and update code for doc

- replace parcel with rollup

Author: tylim88

README.md

@@ -36,7 +36,7 @@
 			</a>
 			&nbsp;
 			<img
-				src="https://img.shields.io/badge/gzipped-6KB-brightgreen"
+				src="https://img.shields.io/badge/gzipped-8KB-brightgreen"
 				alt="package size"
 			/>
 			&nbsp;

codeForDoc/src/quick_start/runTransaction.ts

@@ -4,39 +4,46 @@ import {
 	serverTimestamp,
 	increment,
 	arrayRemove,
+	Timestamp,
 } from 'firelord'
 
 export const dummy = async () => {
 	try {
-		await runTransaction(db, async transaction => {
-			// ...
-		})
 		// OR you can skip 'db'
-		await runTransaction(async transaction => {
-			await transaction.get(example.doc('lmn')).then(docSnapshot => {
-				const data = docSnapshot.data()
-			})
+		await runTransaction(
+			db,
+			async transaction => {
+				await transaction.get(example.doc('lmn')).then(docSnapshot => {
+					const data = docSnapshot.data()
+				})
 
-			transaction.create(example.doc('lmn'), {
-				a: 500,
-				b: { c: true, d: [{ e: 'efg' }] },
-				f: { g: serverTimestamp(), h: 3838 },
-			})
+				transaction.create(example.doc('lmn'), {
+					a: 500,
+					b: { c: true, d: [{ e: 'efg' }] },
+					f: { g: serverTimestamp(), h: 3838 },
+				})
 
-			transaction.set(example.doc('lmn'), {
-				a: 88,
-				b: { c: false, d: [{ e: 'opq' }] },
-				f: { g: serverTimestamp(), h: 2929 },
-			})
+				transaction.set(example.doc('lmn'), {
+					a: 88,
+					b: { c: false, d: [{ e: 'opq' }] },
+					f: { g: serverTimestamp(), h: 2929 },
+				})
 
-			transaction.update(example.doc('lmn'), {
-				a: increment(1),
-				b: { d: arrayRemove({ e: 'rst' }) }, // nested form
-				'f.g': serverTimestamp(), // dot notation form
-			})
+				transaction.update(example.doc('lmn'), {
+					a: increment(1),
+					b: { d: arrayRemove({ e: 'rst' }) }, // nested form
+					'f.g': serverTimestamp(), // dot notation form
+				})
 
-			transaction.delete(example.doc('lmn'))
-		})
+				transaction.delete(example.doc('lmn'))
+			},
+			{ readOnly: true, readTime: Timestamp.now() } // optional
+			// we can supply 2 set of options:
+			// 1. { readOnly?: false, maxAttempts?: number }
+			// note that in case 1 both properties are optional and readOnly is false
+			// 2. { readOnly: true, readTime?: Timestamp }
+			// note that in case only readTime is optional and readOnly is true
+		)
 		console.log('Transaction successfully committed!')
 	} catch (e) {
 		console.log('Transaction failed: ', e)