Breej

Javascript library for breeze blockchain

Installation

Install with npm install --save breej inside your project. Then just

const breej = require('breej')

CDN style

If you are working in the browser and want to load breej from a CDN:

<script src="https://unpkg.com/breej/bin/breej.min.js"></script>

breej.init({api: 'http://localhost:3001'})

GET API

GET single account

breej.getAccount('alice', (err, account) => {
    console.log(err, account)
})

GET many accounts

Just pass an array of usernames instead

breej.getAccounts(['alice', 'bob'], (err, accounts) => {
    console.log(err, accounts)
})

GET account transaction history

For the history, you also need to specify a block number. The api will return all blocks lower than the specified block where the user was involved in a transaction

breej.getAccountHistory('alice', 0, (err, blocks) => {
    console.log(err, blocks)
})

GET single content

breej.getContent('alice', 'pocNl2YhZdM', (err, content) => {
    console.log(err, content)
})

GET followers

breej.getFollowers('alice', (err, followers) => {
    console.log(err, followers)
})

GET following

breej.getFollowers('alice', (err, followers) => {
    console.log(err, followers)
})

GET contents by author

You can pass a username and permlink (identifying a content) in the 2nd and 3rd argument to 'get more'.

breej.getDiscussionsByAuthor('alice', null, null, (err, contents) => {
    console.log(err, contents)
})

GET contents by creation time

You can pass a username and a permlink to 'get more'.

breej.getNewDiscussions('alice', null, null, (err, contents) => {
    console.log(err, contents)
})

GET notifications

breej.getNotifications('alice', (err, contents) => {
    console.log(err, contents)
})

GET all votes by account

breej.getVotesByAccount('alice', 0, (err, votes) => {
    console.log(err, votes)
})

POST API

To send a transaction to the network, you will need multiple steps. First you need to define your transaction and sign it.

var newTx = {
    type: breej.TransactionType.FOLLOW,
    data: {
        target: 'bob'
    }
}

newTx = breej.sign(alice_key, 'alice', newTx)

After this step, the transaction is forged with a timestamp, hash, and signature. This transaction needs to be sent in the next 60 secs or will be forever invalid.

You can send it like so

breej.sendTransaction(newTx, function(err, res) {
    cb(err, res)
})

The callback will return once your transaction has been included in a new block.

Alternatively, you can just want the callback as soon as the receiving node has it, you can do:

breej.sendRawTransaction(newTx, function(err, res) {
    cb(err, res)
})

Convenience

Generate a keypair

console.log(breej.keypair())

Growing variables

Voting Power and Bandwidth are growing in time but the API will only return the latest update in the vp and bw fields of the accounts. To get the actual value, use votingPower() and bandwidth()

breej.getAccount('alice', (err, account) => {
    console.log(breej.votingPower(account))
    console.log(breej.bandwidth(account)) 
})