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PHP Bitcoin tutorial based on Mixin Network III : Create Bitcoin wallet, read balance and send Bitcoin

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Mixin Network
Published
2022/04/29
Updated
2019/05/25
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PHP Bitcoin tutorial based on Mixin Network III : Create Bitcoin wallet, read balance and send Bitcoin

We have created a bot to echo message and echo Bitcoin.

What you will learn from this chapter

  1. How to create Bitcoin wallet
  2. How to read Bitcoin balance
  3. How to send Bitcoin with zero transaction fee and confirmed in 1 second
  4. How to send Bitcoin to other wallet

Create a Bitcoin wallet by Mixin Network PHP SDK

Pre-request: You should have a Mixin Network account. Create an accounte can be done by one line code:

$user_info = $mixinSdkBot->Network()->createUser("Tom cat");

The function in PHP SDK create a RSA key pair automatically, then call Mixin Network to create an account. last the function return all account information.

//Create User api include all account information
print_r($user_info);
print($user_info["pubKey"]);
$newConfig = array();
$newConfig["private_key"] = $user_info["priKey"];
$newConfig["pin_token"]   = $user_info["pin_token"];
$newConfig["session_id"]  = $user_info["session_id"];
$newConfig["client_id"]   = $user_info["user_id"];

Result of createUser is:

Array
(
    [type] => user
    [user_id] => de06f952-6ec7-3789-8467-9aa79869a6ef
    [identity_number] => 0
    [full_name] => Tom cat
    [avatar_url] =>
    [relationship] =>
    [mute_until] => 0001-01-01T00:00:00Z
    [created_at] => 2019-02-20T12:29:29.86008273Z
    [is_verified] =>
    [session_id] => bc9293e5-ed9a-48da-99f9-915f561a1c60
    [phone] =>
    [pin_token] => TIPyCtRTTYOg2sr+lu0z2D3xS8SOtQAy0ZDnacRrn6u2ytutZinzeEpRTD9N1+DS/T1zJ8VoX4ED19nhF5SApjqjUaRjKI5lga4rQGcePjCvM0D89FdpmKJzNMLjzV2DglKFMPbnJTu1btfILc0XWiSNEiiFr2mHuLI7bYuQzWI=
    [invitation_code] =>
    [code_id] =>
    [code_url] => https://mixin.one/codes/
    [has_pin] =>
    [receive_message_source] => EVERYBODY
    [accept_conversation_source] => EVERYBODY
    [priKey] => -----BEGIN PRIVATE KEY-----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-----END PRIVATE KEY-----

    [pubKey] => -----BEGIN PUBLIC KEY-----
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC4dHUsthnCnpPyaeJUzGcSd9AF
j/op2eHPhRvt3Id33p5l8rAsjOeoYL1WcIeEa0ab1Y0bfzTRN5NloDfSzWallwpq
OGnv4SY6cLo/xFUf9fx0nmxfYXLzKE63vA9Ii5ZPq39bYK/2R5iKGvHn+OcTAQ2q
4H7BeG+ZO5FGr1Pf8QIDAQAB
-----END PUBLIC KEY-----
)

Now you need to carefully keep the account information. You need these information to read asset balance and other content.

Create Bitcoin wallet for the Mixin Network account

The Bitcoin wallet is not generated automatically at same time when we create Mixin Network account. Read Bitcoin asset once to generate a Bitcoin wallet.

$asset_infoNew = $mixinSdkNew->Wallet()->readAsset("c6d0c728-2624-429b-8e0d-d9d19b6592fa");
echo "BitCoin wallet address is :".$asset_infoNew["public_key"];

You can found information about Bitcoin asset in the account. Public key is the Bitcoin deposit address. Full response of read Bitcoin asset is

Array
(
    [type] => asset
    [asset_id] => c6d0c728-2624-429b-8e0d-d9d19b6592fa
    [chain_id] => c6d0c728-2624-429b-8e0d-d9d19b6592fa
    [symbol] => BTC
    [name] => Bitcoin
    [icon_url] => https://images.mixin.one/HvYGJsV5TGeZ-X9Ek3FEQohQZ3fE9LBEBGcOcn4c4BNHovP4fW4YB97Dg5LcXoQ1hUjMEgjbl1DPlKg1TW7kK6XP=s128
    [balance] => 0
    [public_key] => 195p8R8Y15uzDGMrdVkELVUW2444psqiSq
    [account_name] =>
    [account_tag] =>
    [price_btc] => 1
    [price_usd] => 3928.11498197
    [change_btc] => 0
    [change_usd] => -0.006841408545228452
    [asset_key] => c6d0c728-2624-429b-8e0d-d9d19b6592fa
    [confirmations] => 12
    [capitalization] => 0
)

The API provide many information about Bitcoin asset.

  • Deposit address:[public_key]
  • Logo: [icon_url]
  • Asset name:[name]
  • Asset uuid in Mixin network: [asset_key]
  • Price in USD from Coinmarketcap.com: [price_usd]
  • Least confirmed blocks before deposit is accepted by Mixin network:[confirmations]

Private key?

Where is Bitcoin private key? The private key is protected by multi signature inside Mixin Network so it is invisible for user. Bitcoin asset can only be withdraw to other address when user provide correct RSA private key signature, PIN code and Session key.

Not only Bitcoin, but also Ethereum, EOS

The account not only contain a Bitcoin wallet, but also contains wallet for Ethereum, EOS, etc. Full blockchain support list. All ERC20 Token and EOS token are supported by the account.

Create other asset wallet is same as create Bitcoin wallet, just read the asset.

Mixin Network support cryptocurrencies (2019-02-19)

crypto uuid in Mixin Network
EOS 6cfe566e-4aad-470b-8c9a-2fd35b49c68d
CNB 965e5c6e-434c-3fa9-b780-c50f43cd955c
BTC c6d0c728-2624-429b-8e0d-d9d19b6592fa
ETC 2204c1ee-0ea2-4add-bb9a-b3719cfff93a
XRP 23dfb5a5-5d7b-48b6-905f-3970e3176e27
XEM 27921032-f73e-434e-955f-43d55672ee31
ETH 43d61dcd-e413-450d-80b8-101d5e903357
DASH 6472e7e3-75fd-48b6-b1dc-28d294ee1476
DOGE 6770a1e5-6086-44d5-b60f-545f9d9e8ffd
LTC 76c802a2-7c88-447f-a93e-c29c9e5dd9c8
SC 990c4c29-57e9-48f6-9819-7d986ea44985
ZEN a2c5d22b-62a2-4c13-b3f0-013290dbac60
ZEC c996abc9-d94e-4494-b1cf-2a3fd3ac5714
BCH fd11b6e3-0b87-41f1-a41f-f0e9b49e5bf0

If you read EOS deposit address, the deposit address is composed of two parts: account_name and account tag. When you transfer EOS token to your account in Mixin network, you should fill both account name and memo. The memo content is value of 'account_tag'. Result of read EOS asset is:

Array
(
    [type] => asset
    [asset_id] => 6cfe566e-4aad-470b-8c9a-2fd35b49c68d
    [chain_id] => 6cfe566e-4aad-470b-8c9a-2fd35b49c68d
    [symbol] => EOS
    [name] => EOS
    [icon_url] => https://images.mixin.one/a5dtG-IAg2IO0Zm4HxqJoQjfz-5nf1HWZ0teCyOnReMd3pmB8oEdSAXWvFHt2AJkJj5YgfyceTACjGmXnI-VyRo=s128
    [balance] => 0
    [public_key] =>
    [account_name] => eoswithmixin
    [account_tag] => 0aa2b00fad2c69059ca1b50de2b45569
    [price_btc] => 0.00097367
    [price_usd] => 3.87734515
    [change_btc] => 0.05950956117519646
    [change_usd] => 0.07238079041492786
    [asset_key] => eosio.token:EOS
    [confirmations] => 64
    [capitalization] => 0
)

Deposit Bitcoin and read balance

Now you can deposit Bitcoin into the deposit address.

This is maybe too expensive for this tutorial. There is a free and lightening fast solution to deposit Bitcoin: add the address in your Mixin messenger account withdrawal address and withdraw small amount Bitcoin from your account to the address. It is free and confirmed instantly because they are both on Mixin Network.

Now you can read Bitcoin balance of the account.

$btc = $mixinSdkNew->Wallet()->readAsset("c6d0c728-2624-429b-8e0d-d9d19b6592fa");
print_r($btc);

Send Bitcoin inside Mixin Network to enjoy instant confirmation and ZERO transaction fee

Any transaction happen between Mixin network account is free and is confirmed in 1 second.

Pre-request: A PIN has been created for account

A PIN is required to send any asset in Mixin Network. Let's create pin for the account if it is missing.

//Create a PIN.
$pinInfo = $mixinSdkNew->Pin()->updatePin('',PIN);
print_r($pinInfo);

Send Bitcoin to another Mixin Network account

We can send Bitcoin to our bot through Mixin Messenger, and then transfer Bitcoin from bot to new user.

$mixinSdkBot = new MixinSDK(require './config.php');
//$user_info["user_id"] generated by create user;
$trans_info = $mixinSdkBot->Wallet()->transfer(BTC_ASSET_ID,$user_info["user_id"],
                                         $mixinSdkBot->getConfig()['default']['pin'],AMOUNT);

Read bot's Bitcoin balance to confirm the transaction. Caution: $mixinSdkNew is for the New User!

$btc = $mixinSdkNew->Wallet()->readAsset("c6d0c728-2624-429b-8e0d-d9d19b6592fa");
print_r($btc);

Send Bitcoin to another Bitcoin exchange or wallet

If you want to send Bitcoin to another exchange or wallet, you need to know the destination deposit address, then add the address in withdraw address list of the Mixin network account.

Pre-request: Withdrawal address is added and know the Bitcoin withdrawal fee

Add destination address to withdrawal address list

Call createAddress, the ID of address will be returned in result of API and is required soon.

$btcInfo = $mixinSdkNew->Wallet()->createAddress("c6d0c728-2624-429b-8e0d-d9d19b6592fa",
                                                    "14T129GTbXXPGXXvZzVaNLRFPeHXD1C25C",
                                                    $mixinSdkNew->getConfig()['default']['pin'],
                                                    "BTC withdral",false);

The 14T129GTbXXPGXXvZzVaNLRFPeHXD1C25C is a Bitcoin wallet address, Output like below, fee is 0.0025738 BTC, The API result contains the withdrawal address ID. 

Array
(
    [type] => address
    [address_id] => 345855b5-56a5-4f3b-ba9e-d99601ef86c1
    [asset_id] => c6d0c728-2624-429b-8e0d-d9d19b6592fa
    [public_key] => 14T129GTbXXPGXXvZzVaNLRFPeHXD1C25C
    [label] => BTC withdral
    [account_name] =>
    [account_tag] =>
    [fee] => 0.0025738
    [reserve] => 0
    [dust] => 0.0001
    [updated_at] => 2019-02-20T01:47:56.44067294Z
)

Read withdraw fee anytime

$wdInfo = $mixinSdkBot->Wallet()->readAddress($btcInfo["address_id"]);

Send Bitcoin to destination address

Submit the withdrawal request to Mixin Network, the $btcInfo["address_id"] is the address id return by createAddress

$wdInfo = $mixinSdkBot->Wallet()->withdrawal($btcInfo["address_id"],
                            "0.01",
                            $mixinSdkBot->getConfig()['default']['pin'],
                            "BTC withdral");

Confirm the transaction in blockchain explore

Full example

<?php
require __DIR__ . '/vendor/autoload.php';
use ExinOne\MixinSDK\MixinSDK;
$mixinSdkBot = new MixinSDK(require './config.php');

const PIN             = "945689";
const MASTER_ID       = "37222956";
const BTC_ASSET_ID    = "c6d0c728-2624-429b-8e0d-d9d19b6592fa";
const EOS_ASSET_ID    = "6cfe566e-4aad-470b-8c9a-2fd35b49c68d";
const BTC_WALLET_ADDR = "14T129GTbXXPGXXvZzVaNLRFPeHXD1C25C";
const AMOUNT          = "0.001";
// Mixin Network support cryptocurrencies (2019-02-19)
// |EOS|6cfe566e-4aad-470b-8c9a-2fd35b49c68d
// |CNB|965e5c6e-434c-3fa9-b780-c50f43cd955c
// |BTC|c6d0c728-2624-429b-8e0d-d9d19b6592fa
// |ETC|2204c1ee-0ea2-4add-bb9a-b3719cfff93a
// |XRP|23dfb5a5-5d7b-48b6-905f-3970e3176e27
// |XEM|27921032-f73e-434e-955f-43d55672ee31
// |ETH|43d61dcd-e413-450d-80b8-101d5e903357
// |DASH|6472e7e3-75fd-48b6-b1dc-28d294ee1476
// |DOGE|6770a1e5-6086-44d5-b60f-545f9d9e8ffd
// |LTC|76c802a2-7c88-447f-a93e-c29c9e5dd9c8
// |SC|990c4c29-57e9-48f6-9819-7d986ea44985
// |ZEN|a2c5d22b-62a2-4c13-b3f0-013290dbac60
// |ZEC|c996abc9-d94e-4494-b1cf-2a3fd3ac5714
// |BCH|fd11b6e3-0b87-41f1-a41f-f0e9b49e5bf0

$msg  = "1: Create user and update PIN\n2: Read Bitcoin balance \n3: Read Bitcoin Address\n4: Read EOS balance\n";
$msg .= "5: Read EOS address\n6: Transfer Bitcoin from bot to new user\n7: Transfer Bitcoin from new user to Master\n";
$msg .= "8: Withdraw bot's Bitcoin\n";
$msg .= "9: Exit \nMake your choose:";
while (true) {
  echo $msg;
  $line = readline("");
  if ($line != '9') print("run...\n");
  if ($line == '1') {
    $user_info = $mixinSdkBot->Network()->createUser("Tom cat");
    print_r($user_info);
    print($user_info["pubKey"]);

    $newConfig = array();
    $newConfig["private_key"] = $user_info["priKey"];
    $newConfig["pin_token"]   = $user_info["pin_token"];
    $newConfig["session_id"]  = $user_info["session_id"];
    $newConfig["client_id"]   = $user_info["user_id"];
    $newConfig["pin"]         = PIN;
    $mixinSdkNew = new MixinSDK($newConfig);

    $pinInfo = $mixinSdkNew->Pin()->updatePin('',PIN);
    print_r($pinInfo);
    $csvary = array($newConfig);
    $fp = fopen('new_users.csv', 'a');
    foreach ($csvary as $fields) {
        fputcsv($fp, $fields);
    }
    fclose($fp);
  }
  if ($line == '2') {
    if (($handle = fopen("new_users.csv", "r")) !== FALSE) {
    while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
      $mixinSdkNew = new MixinSDK(GenerateConfigByCSV($data));
      $asset_info = $mixinSdkNew->Wallet()->readAsset(BTC_ASSET_ID);
      print_r("Bitcoin wallet balance is :".$asset_info["balance"]."\n");
    }
      fclose($handle);
    } else print("Create user first\n");
  }
  if ($line == '3') {
    if (($handle = fopen("new_users.csv", "r")) !== FALSE) {
    while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
      $mixinSdkNew = new MixinSDK(GenerateConfigByCSV($data));
      $asset_info = $mixinSdkNew->Wallet()->readAsset(BTC_ASSET_ID);
      print_r("Bitcoin wallet address is :".$asset_info["public_key"]."\n");
    }
      fclose($handle);
    } else print("Create user first\n");
  }
  if ($line == '4') {
    if (($handle = fopen("new_users.csv", "r")) !== FALSE) {
    while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
      $mixinSdkNew = new MixinSDK(GenerateConfigByCSV($data));
      $asset_info = $mixinSdkNew->Wallet()->readAsset(EOS_ASSET_ID);
      print_r("EOS wallet balance is :".$asset_info["balance"]."\n");
    }
      fclose($handle);
    } else print("Create user first\n");
  }
  if ($line == '5') {
    if (($handle = fopen("new_users.csv", "r")) !== FALSE) {
    while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
      $mixinSdkNew = new MixinSDK(GenerateConfigByCSV($data));
      $asset_info = $mixinSdkNew->Wallet()->readAsset(EOS_ASSET_ID);
      print_r($asset_info);
      print_r("EOS wallet address is :".$asset_info["account_name"]."\n");
      print_r($asset_info["account_tag"]."\n");
    }
      fclose($handle);
    } else print("Create user first\n");

  }
  if ($line == '6') {
    if (($handle = fopen("new_users.csv", "r")) !== FALSE) {
    while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
      $new_user_id = $data[3];
      $trans_info = $mixinSdkBot->Wallet()->transfer(BTC_ASSET_ID,$new_user_id,
                                               $mixinSdkBot->getConfig()['default']['pin'],AMOUNT);
      print_r($trans_info);
    }
      fclose($handle);
    } else print("Create user first\n");
  }
  if ($line == '7') {
    $userInfo = $mixinSdkBot->Network()->readUser(MASTER_ID);
    if (isset($userInfo["user_id"])) {
      if (($handle = fopen("new_users.csv", "r")) !== FALSE) {
      while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
          $mixinSdkNew = new MixinSDK(GenerateConfigByCSV($data));
          $asset_info = $mixinSdkNew->Wallet()->readAsset(BTC_ASSET_ID);
          if ( (float) $asset_info["balance"] > 0 ) {
            $trans_info = $mixinSdkNew->Wallet()->transfer(BTC_ASSET_ID,$userInfo["user_id"],
                                                     $mixinSdkNew->getConfig()['default']['pin'],$asset_info["balance"]);
            print_r($trans_info);
          } else print($data[3] . " has no coins!\n");
      }
        fclose($handle);
      } else print("Create user first\n");
    } else print("Can not find this user id by Mixin ID!");
  }
  if ($line == '8') {
    $btcInfo = $mixinSdkBot->Wallet()->createAddress(BTC_ASSET_ID,
                                              BTC_WALLET_ADDR,
                                              $mixinSdkBot->getConfig()['default']['pin'],
                                              "BTC withdral",false);
    print("Bitcoin winthdrawal fee is:".$btcInfo["fee"]."\n");
    $wdInfo = $mixinSdkBot->Wallet()->withdrawal($btc["address_id"],
                                AMOUNT,
                                $mixinSdkBot->getConfig()['default']['pin'],
                                "BTC withdral");
    // $wdInfo = $mixinSdkBot->Wallet()->readAddress($btcInfo["address_id"]);
    print_r($wdInfo);
  }
  if ($line == '9') {
    exit();
  }
}

function GenerateConfigByCSV($data) :array {
  print("client id is:".$data[3]."\n");
  $newConfig = array();
  $newConfig["private_key"] = $data[0];
  $newConfig["pin_token"]   = $data[1];
  $newConfig["session_id"]  = $data[2];
  $newConfig["client_id"]   = $data[3];
  $newConfig["pin"]         = $data[4];
  return $newConfig;
}

Full source code

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