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Who am I?

Mike Elsmore

Developer Advocate

mike.elsmore@uk.ibm.com

Follow Along

http://elsmore.me/no-service-jsoxford/

Demo

http://elsmore.me/jsoxford-demo/

Offline WebApps

web SQL & Indexed DB

SQL in the browser

SQL in the browser

Kinda

Transaction Datastore that's Relational

API differences

Another way…

Dexie

localForage

Etc

Dexie

localForage

Etc

So what's special…

In-browser database

Local database on LevelDB

Interface library for CouchDB

Get started

In Node.js

npm install --save pouchdb

var PouchDB = require('pouchdb');
var db = new PouchDB('my_database');

As a client

var db = new PouchDB('http://localhost:5984/my_database');

JSON Document

var doc = {
  event: "JSOxford",
  type: "meetup",
  date: "2016-02-17"
}

Create

db.post(doc, [options], [callback]);

db.post(doc, function (err, response) {
  if (err) { return console.log(err); }
  // handle response
});

Read

db.get(docId, [options], [callback]);

db.get('jsoxford', function(err, doc) {
  if (err) { return console.log(err); }
  // handle doc
});

Update

db.put(doc, [docId], [docRev], [options], [callback]);

db.get('jsoxford', function(err, doc) {
  if (err) { return console.log(err); }
  db.put({
    _id: 'jsoxford',
    _rev: doc._rev,
    talk: "No Service"
  }, function(err, response) {
    if (err) { return console.log(err); }
    // handle response
  });
});

PUT Create

db.put(doc, [docId], [docRev], [options], [callback]);

var doc = {
  _id: "jsoxford",
  event: "JSOxford",
  type: "Meetup",
  date: "2015-02-17"
}
db.put(doc, function(err, response) {
  if (err) { return console.log(err); }
  // handle response
});

Delete / Destroy

db.remove(docId, [docRev], [options], [callback]);

db.get('jsoxford', function(err, doc) {
  if (err) { return console.log(err); }
  db.remove(doc, function(err, response) {
    if (err) { return console.log(err); }
    // handle response
  });
});

That's the basics…now what?

Bulk Actions

Create

db.bulkDocs(docs, [options], [callback]);
db.bulkDocs([
  {event: "JSOxford",}, {event : "Render"}
], function(err, response) {
  if (err) { return console.log(err); }
  // handle result
});

Read

db.allDocs([options], [callback]);
db.allDocs({
  include_docs: true,
  attachments: true
}, function(err, response) {
  if (err) { return console.log(err); }
  // handle result
});

Changes

db.changes(options);

var changes = db.changes({
  since: 'now',
  live: true,
  include_docs: true
}).on('change', function(change) {
  // handle change
}).on('complete', function(info) {
  // changes() was canceled
}).on('error', function (err) {
  console.log(err);
});

changes.cancel();

Attachments

Create

db.putAttachment(docId, attachmentId, [rev], attachment, type, [callback]);

Read

db.getAttachment(docId, attachmentId, [options], [callback]);

Delete

db.removeAttachment(docId, attachmentId, rev, [callback]);

Replication

PouchDB.replicate(source, target, [options]);

db.replicate.to(remoteDB, [options]);
// or
db.replicate.from(remoteDB, [options]);

Sync

var sync = PouchDB.sync(src, target, [options]);

PouchDB.sync('mydb', 'http://localhost:5984/mydb');

Magic bit

CouchDB

Codez!

https://github.com/ukmadlz/jsoxford-demo https://github.com/ukmadlz/apikeyapp

Round Up

Questions?