The trusted messaging framework based on MQTT and crypto signatures.

npm install --save mqttt

{
    "from": "",
    "to": "",
    "timestamp": new Date().getTime(),
    "type": "request"/"response"/"command", 
    "data": "",
    "seqno": 0,
}

• mqttt.deriveHDAccount(mnemonic, rpcserver, idx)

• client = new mqttt.MQTTT(address, signer, mqtt_broker_url, [ttv])
• client.send(to, data, type)
• client.listen(checkDate, (err, msg) => {})
• client.stop()

• web3Signer = new mqttt.signers.Web3Singer(web3, signHash, recoverHash)
• privkeySigner = new mqttt.signers.PrivKeySigner(privkey, signHash, recoverHash)
• signer.sign(msg, account, callback)
• signer.recover(msg, sig, callback)

signHash is the type of the hash before feeding the message to the web3 eth_sign function. Providing the flexsibility to specify the hash type is to work around the incompatible eth_hash API since geth 1.5. For signHash, you can specify 'hash', 'hashPersonal' and 'nohash'. For recoverHash, you can specify 'hash' and 'hashPersonal'.

Check examples/ for more usages.

Apache-2.0