A simple script for building a Coinbase Connect Authorization URL

coinbaseAuthUrlGenerator.js

/* 
* A simple script for building an authorization redirect URL for your Coinbase Connect app.
* Follow the ##STEPS
*/


/* ##STEP1**: To generate an Authorization URI for a Sandbox App, set this to TRUE
*  Hint: If you're using this script, you probably want to start on the Sandbox
*/
var useSandbox = true;
var productionAuthURI = 'https://www.coinbase.com/oauth/authorize/?',
    sandboxAuthURI = 'https://sandbox.coinbase.com/oauth/authorize/?';

/* ##STEP2: get the client_id and redirect_uri from your OAuth app 
/ at https://www.coinbase.com/settings/api or https://sandbox.coinbase.com/settings/api
*/
var appArgs = {
  client_id         : 'Your Client ID',
  redirect_uri      : 'Your redirect URI',
  response_type     : 'code' //don't change this
};

/* ##STEP3: Uncomment the permission scopes you need. Visit https://developers.coinbase.com/api/v2 to see the permissions  
* required for each endpoint you plan to use.
*/
var scopes = [
  // 'wallet:user:read',
  // 'wallet:user:update',
  // 'wallet:user:email',
  // 'wallet:accounts:read',
  // 'wallet:accounts:update',
  // 'wallet:accounts:create',
  // 'wallet:accounts:delete',
  // 'wallet:payment-methods:read',
  // 'wallet:payment-methods:delete',
  // 'wallet:payment-methods:limits',
  // 'wallet:transactions:read',
  // 'wallet:transactions:send',
  // 'wallet:transactions:request',
  // 'wallet:transactions:transfer',
  // 'wallet:buys:read',
  // 'wallet:buys:create',
  // 'wallet:sells:read',
  // 'wallet:sells:create',
  // 'wallet:addresses:read',
  // 'wallet:addresses:create',
  // 'wallet:orders:read',
  // 'wallet:orders:create',
  // 'wallet:orders:refund',
  // 'wallet:checkouts:read',
  // 'wallet:checkouts:create',
  // 'wallet:deposits:read',
  // 'wallet:deposits:create',
  // 'wallet:withdrawals:read',
  // 'wallet:withdrawals:create'
];


/* ## STEP4: If your scopes include 'wallet:transactions:send', you'll need to set these parameters
*  Max is 100 USD per day. The less you ask, the more likely people with authorize your app.
* More info: https://developers.coinbase.com/docs/wallet/coinbase-connect/permissions#send-limits
*/
var metaArgs = { 
  send_limit_amount : 100,
  send_limit_currency: 'USD',
  send_limit_period: 'day'
};

// ##STEP5: Run ze file


function buildAuthURI( appArgs, metaArgs, scopes ){
  
  //Sandbox or Production?
  var authURI = productionAuthURI;
  if ( useSandbox ){ authURI = sandboxAuthURI; }
  
  // Convert the appArgs objects into a URI encoded query string
  var queryParams = [];
  for ( var param in appArgs ){
    if ( appArgs.hasOwnProperty(param) ){
      queryParams.push(encodeURIComponent( param ) + '=' + encodeURIComponent( appArgs[param] ));
    }
  }
  
  // Do we need to include the send limits parameters in the query string?
  if (scopes.indexOf('wallet:transactions:send') != -1){
    for ( var param1 in metaArgs){
      queryParams.push( 'meta[' + param1 + ']=' + metaArgs[param1] );
    }
  }
  
  //Put it all together
  authURI += queryParams.join('&') + '&scope=' + scopes.join(','); 
  
  return authURI;
}

console.log( buildAuthURI( appArgs, metaArgs, scopes ) );