Important: This is the documentation for a previous version of Feathers.
For the latest documentation please visit docs.feathersjs.com.

Examples of snapshot replication

Let's look at some snapshot replications.

Example

You can run this example with

cd path/to/feathers-docs/examples/offline
npm install
cd ./snapshot
npm run build
npm start

Then point a browser at localhost:3030 and look at the log on the browser console.

You can see the client source here, here and here.

Snapshot the entire collection

The remote service data is

===== Read stockRemote service directly
{dept: "a", stock: "a1", _id: "LANJQx24cg9Jy2Hr"}
{dept: "a", stock: "a2", _id: "rTk5oK6gLupjbsyP"}
{dept: "a", stock: "a3", _id: "nOxWx97QKzp89qA9"}
{dept: "a", stock: "a4", _id: "xzOwo8g671sdejg5"}
{dept: "a", stock: "a5", _id: "nEYr6D9YcQ0Ln9nW"}
{dept: "b", stock: "b1", _id: "qY8LhzTKLw4G2ld6"}
{dept: "b", stock: "b2", _id: "DBQ93zzWPNiFq6wd"}
{dept: "b", stock: "b3", _id: "xyVeDj7BRXJlPo9F"}
{dept: "b", stock: "b4", _id: "mZddKB7THrbv8dHV"}
{dept: "b", stock: "b5", _id: "4RQ5BL8PHER5DEGX"}

Snapshot all of it.

const snapshot = require('feathers-offline-snapshot');
const stockRemote = app.service('/stock');

snapshot(stockRemote)
  .then(records => console.log(records));
===== snapshot, all records
{dept: "a", stock: "a1", _id: "LANJQx24cg9Jy2Hr"}
{dept: "a", stock: "a2", _id: "rTk5oK6gLupjbsyP"}
{dept: "a", stock: "a3", _id: "nOxWx97QKzp89qA9"}
{dept: "a", stock: "a4", _id: "xzOwo8g671sdejg5"}
{dept: "a", stock: "a5", _id: "nEYr6D9YcQ0Ln9nW"}
{dept: "b", stock: "b1", _id: "qY8LhzTKLw4G2ld6"}
{dept: "b", stock: "b2", _id: "DBQ93zzWPNiFq6wd"}
{dept: "b", stock: "b3", _id: "xyVeDj7BRXJlPo9F"}
{dept: "b", stock: "b4", _id: "mZddKB7THrbv8dHV"}
{dept: "b", stock: "b5", _id: "4RQ5BL8PHER5DEGX"}

Snapshot part of the collection

const snapshot = require('feathers-offline-snapshot');
const stockRemote = app.service('/stock');

snapshot(stockRemote, { dept: 'a', $sort: { stock: 1 } })
  .then(records => console.log(records));
===== snapshot, dept: 'a'
{dept: "a", stock: "a1", _id: "LANJQx24cg9Jy2Hr"}
{dept: "a", stock: "a2", _id: "rTk5oK6gLupjbsyP"}
{dept: "a", stock: "a3", _id: "nOxWx97QKzp89qA9"}
{dept: "a", stock: "a4", _id: "xzOwo8g671sdejg5"}
{dept: "a", stock: "a5", _id: "nEYr6D9YcQ0Ln9nW"}
===== Example finished.

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