An empty database in everybody's pocket at 4Developers

IndexedDB is not new. It is supported in almost every browser and can power the most modern of client side applications. But there is not a lot of love for it and that needs to change.
We'll investigate why we should love IndexedDB and the kind of apps you can create when you have the power of a database in the browser. Then we'll dive into how to use IndexedDB with a look at both the terrifying API and the friendly libraries and Angular integrations that will help us along the way. Together we'll discover a new love for IndexedDB.

--

Links:

idb-keyval: https://github.com/jakearchibald/idb-keyval
localForage: https://github.com/localForage/localForage
idb: https://github.com/jakearchibald/idb
Dexie: http://dexie.org/
PouchDB: https://pouchdb.com/

Twilio Programmable Chat (from the demo): https://www.twilio.com/chat

Twilimoji chat: https://github.com/philnash/twilimoji

Transcript

1. A empt databas i everybod ' pocke Phil Nash 4Developers 2017
2. Phi Nas @philnash http://philna.sh philnash@twilio.com
3. A empt databas i everybod ' pocke
4. Problem
5. Performanc
6. O lin
7. O lin Poo connectivit
8. O lin Poo connectivit Resilienc
9. Use experienc
10. Progressiv We Ap
11. A empt databas i everybod ' pocke
12. Th option
13. Cookie
14. LocalStorag
15. LocalStorag localStorage.setItem('FEL', 'Awesome');
16. Bu ...
17. WebSQL?
18. S ...
19. IndexedDB
20. IndexedDB ha ba reputatio
21. Wha i IndexedDB?
22. Objec stor
23. Transactiona
24. Asynchronou
25. Sam origi polic
26. Dem
27. Ther ' mor !
28. Indexe
29. Indexe request.onupgradeneeded = (event) => { const db = event.target.result; const objectStore = db.createObjectStore('messages', { keyPath: 'sid' }); objectStore.createIndex('dateUpdated', 'dateUpdated'); }; 01. 02. 03. 04. 05. 06. 07.
30. Indexe const transaction = db.transaction(['messages']); const objectStore = transaction.objectStore('messages'); const index = objectStore.index('dateUpdated'); index.openCursor().onsuccess = (event) => { // do stuff } 01. 02. 03. 04. 05. 06.
31. Upgrade
32. Upgrade request.onupgradeneeded = (event) => { const db = event.target.result; db.createObjectStore("messages", { keyPath: "sid" }); }; 01. 02. 03. 04.
33. Upgrade request.onupgradeneeded = (event) => { const db = event.target.result; if (event.oldVersion < 1) { db.createObjectStore("messages", { keyPath: "sid" }); } if (event.oldVersion < 2) { db.createObjectStore("channels", { keyPath: "sid" }); } }; 01. 02. 03. 04. 05. 06. 07. 08. 09.
34. Bu
35. Safar
36. Librarie !
37. id -keyva localForag id Dexi PouchDB
38. Dexi const dexie = new Dexie("messageStore"); dexie.version(1).stores({ messages: 'sid,dateUpdated' }); 01. 02. 03. 04.
39. Dexi dexie.open().then((db) => { db.messages.where("sid").equals(key) .then((message) => { console.log(message.body); }); }); 01. 02. 03. 04.
40. A empt databas i everybod ' pocke
41. IndexedDB hel t enhanc th experienc
42. Performanc
43. Resilienc
44. Le ' l th s database !
45. Thank ! @philnash http://philna.sh philnash@twilio.com