README.md

Simple example project

Simple project demonstrating the use of dgraph-js, the official JavaScript client for Dgraph.

Running

Start Dgraph server

You will need to install Dgraph v20.03.0 or above and run it.

You can run the commands below to start a clean Dgraph server every time for testing and exploration.

First, create two separate directories for dgraph zero and dgraph alpha.

mkdir -p dgraphdata/zero dgraphdata/data

Then start dgraph zero:

cd dgraphdata/zero
rm -r zw; dgraph zero

Finally, start the dgraph alpha:

cd dgraphdata/data
rm -r p w; dgraph alpha --lru_mb=1024 --zero localhost:5080

For more configuration options, and other details, refer to docs.dgraph.io

Install dependencies

npm install

Run the sample code

For Node.js, run:

node index.js

Your output should look something like this (uid values may be different):

Created person named "Alice" with uid = 0x7569

All created nodes (map from blank node names to uids):
alice => 0x7569
dg.1447158641.7 => 0x756a
dg.1447158641.8 => 0x756b
dg.1447158641.9 => 0x756c

Number of people named "Alice": 1
{ uid: '0x7569',
  name: 'Alice',
  age: 26,
  married: true,
  loc: { type: 'Point', coordinates: [ 1.1, 2 ] },
  dob: '1980-02-01T17:30:00Z',
  friend: [ { name: 'Bob', age: 24 }, { name: 'Charlie', age: 29 } ],
  school: [ { name: 'Crown Public School' } ] }

DONE!

You can explore the source code in the index.js file.