Example JavaScript Source: (get information for a Bitcoin address)

var api = $.fn.blockstrap.api;
api.address('1121cQLqCsDsLPAkJW5ddTCREZ7Bp4ufrk', ‘btc’, function(results)
{
    // Your callback
    console.log(results)
});                             
            

Expected JSON Results:

{
    address: “1121cQLqCsDsLPAkJW5ddTCREZ7Bp4ufrk”,
    balance: 0,
    currency: “btc”,
    hash: “0030ececbad05ffcdff89f3f26e38ca3d735a8de”,
    received: 5000000000,
    tx_count: 2
}                               
            

---

Example JavaScript Source: (manually generate and relay raw transaction to self with data encoded)

var api = $.fn.blockstrap.api;
var blockchains = $.fn.blockstrap.blockchains;
var blockchain = 'btc';
var data = 'Testing Data Encoding';
var keys = blockchains.keys('SECRET_SALTED_HASH', blockchain);
var change_address = keys.pub;
var address_to_send_tx_too = 'OPTIONAL_ADDRESS';
if(!address_to_send_tx_too) address_to_send_tx_too = keys.pub;
api.unspents(keys.pub, blockchain, function(unspents)
{
    if($.isArray(unspents) && blockstrap_functions.array_length(unspents) > 0)
    {
        var total = 0;
        var inputs = [];
        var fee = $.fn.blockstrap.settings.blockchains[blockchain].fee;
        $.each(unspents, function(k, unspent)
        {
            inputs.push({
                txid: unspent.txid,
                n: unspent.index,
                script: unspent.script,
                value: unspent.value,
            });
            total = total + unspent.value
        });
        var outputs = [{
            address: address_to_send_tx_too,
            value: total - fee
        }];
        var amount_to_send_back = total - fee;
        var raw_tx = blockchains.raw(
            keys.pub,
            keys.priv,
            inputs,
            outputs,
            fee,
            amount_to_send,
            data
        );
        api.relay(raw_tx, blockchain, function(results)
        {
            // Your callback
            console.log(results);
        });
    }
});

Expected JSON Results:

{
    txid: 57068f4ffba9f08308ef2c2728f425233a68c11199e872336232d2a08e6a4e8f
}                               
            

Looking up that transaction via an API should result in seeing outputs similar to the following:

outputs: [
    {
        pos: 0,
        script_pub_key: "76A9145EBC3C0FF4955F96E3F4940B0749CCEAA1E5186888AC",
        pubkey_hash: "5EBC3C0FF4955F96E3F4940B0749CCEAA1E51868"
    },
    {
        pos: 1,
        script_pub_key: "6A4C4F7B226E223A224D61726B20536D616C6C6579222C227077223A22333736643762626261386266386563613736333235623135316164623739666135343730643635653364333465383132373837227D",
        pubkey_hash: null
    }
]

Please notice the script_pub_key on line 09. When decoded, it reads:

OP_RETURN 7b226e223a224d61726b20536d616c6c6579222c227077223a22333736643762626261386266386563613736333235623135316164623739666135343730643635653364333465383132373837227d

When the hex value following the op_return is decoded you will find your encoded message.

Please note there is a 40 to 80 bytes limit on data depending on the blockchain used.

For more examples please visit http://docs.blockstrap.com/en/framework/examples/.