Gateway microservice without comments

gateway.service.ts

module microservice.gateway {
  interface GatewayServiceSettings {
    heat_secret_phrase: string;
    btc_private_key: string;
    btc_token: string;
  }

  @MicroService('gateway.service')
  class GatewayService extends AbstractMicroService<GatewayServiceSettings> {
    private subscriber = subscriber.create('gateway.service.btc').assetTransfer();
    constructor(config: Config) {
      super(config);
      var heat_account = Account.getId(Crypto2.getPublicKey(this.settings.heat_secret_phrase));
      this.subscriber.recipient(heat_account).confirmations(10).onConfirmed((event) => {
         this.onAssetTransfer(event.transaction)}).subscribe();
    }    
    private onAssetTransfer(transaction: Java.com.heatledger.Transaction) {
      var btc_address = util.decryptEncryptedMessage(transaction, this.settings.heat_secret_phrase);
      this.subscriber.put(transaction.id, subscriber.COMPLETE, subscriber.TRUE);
      var quantity = attachment.quantity - (attachment.quantity * .0025);
      var attachment: Java.com.heatledger.Attachment.ColoredCoinsAssetTransfer = <any> transaction.attachment;
      var response = this.sendBTC(btc_address, quantity);
      this.subscriber.put(transaction.id, 'BTC.TRANSACTION.ID', response.transactionId);
      this.subscriber.put(transaction.id, 'BTC.TRANSACTION.TIMESTAMP', response.transactionTimestamp);
    }
    private sendBTC(btc_recipient: string, btc_amount: number) {
      var microtx = { from_private: this.settings.btc_private_key,to_address: btc_recipient,value_satoshis: btc_amount };
      var url = 'https://api.blockcypher.com/v1/bcy/test/txs/micro?token='+this.settings.btc_token;
      return JSON.parse(heat.createHTTPClient().post(url, JSON.stringify(microtx)));
    }
  }
}