Sign a message

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Sign a message
Sign a message with specific address
Example
signMessage function takes 2 parameters: first parameter as message to be signed and second parameter as WIF of specific wallet address. Second parameter can also be object that contains binary  privateKey or wif string and boolean testnet switch.
Documentation how to generate WIF can be found on Generate a random address page.
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const { signMessage } = require('obyte/lib/utils');
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const privateKey = window.atob('base64 of private key'); // convert to binary
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const address_wif = 'wif string';
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//const address_key = { privateKey, testnet: false }; // optional way
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//const address_key = { wif: address_wif, testnet: false }; // optional way
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const address_key = wallet_wif;
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const message = 'Hello world';
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​
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const objSignedMessage = signMessage(message, address_key);
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const signedMessageBase64 = window.btoa(JSON.stringify(objSignedMessage));
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​
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console.log(objSignedMessage, signedMessageBase64);
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Returns
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{
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  authors: [
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    {
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      address: 'TMWNLXR42CKIP4A774BQGNVBZAPHY7GH',
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      definition: [
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        'sig',
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        {
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          pubkey: 'AsD2GQ3+CSHfFO9CfX8+gBxmxSm9TGweKjWVie0rt/0p'
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        }
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      ],
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      authentifiers: {
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        r: 'Xfw43Kiu+q+L/1b+z+daKe784V3KcvxWXedwcyC/Yvp+ziR1Jomo7Og7ZoPUPUwQeM4UPpIVU/cTtgurH0LzvA=='
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      }
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    }
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  ],
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  signed_message: 'Hello world',
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  version: '3.0'
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}
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​
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"eyJ2ZXJzaW9uIjoiMy4wIiwic2lnbmVkX21lc3NhZ2UiOiJIZWxsbyB3b3JsZCIsImF1dGhvcnMiOlt7ImFkZHJlc3MiOiJUTVdOTFhSNDJDS0lQNEE3NzRCUUdOVkJaQVBIWTdHSCIsImRlZmluaXRpb24iOlsic2lnIix7InB1YmtleSI6IkFzRDJHUTMrQ1NIZkZPOUNmWDgrZ0J4bXhTbTlUR3dlS2pXVmllMHJ0LzBwIn1dLCJhdXRoZW50aWZpZXJzIjp7InIiOiJYZnc0M0tpdStxK0wvMWIreitkYUtlNzg0VjNLY3Z4V1hlZHdjeUMvWXZwK3ppUjFKb21vN09nN1pvUFVQVXdRZU00VVBwSVZVL2NUdGd1ckgwTHp2QT09In19XX0="
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​
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