test-triam-base-contract/src/operations/create_asset.js

Low level triam smart cotnract support library

import {default as xdr} from "../generated/stellar-xdr_generated";
import {Keypair} from "../keypair";
import isInterger from 'lodash/isInteger';
import isUndefined from 'lodash/isUndefined';
import {Hyper} from "js-xdr";

import {StrKey} from "../strkey";
import isString from 'lodash/isString';

/**
 * Create a CreateAsset operation.
 * @function
 * @alias Operation.createAsset
 * @param {object} opts
 * @param {Asset} opts.asset - The asset to create.
 * @param {string} opts.beneficiary - The beneficiary account ID.
 * @param {(number|string)} opts.fee - The amount to send.
 * @param {(number|string)} opts.ratio - The amount to send.
 * @param {string} opts.minfee - The amount to send.
 * The source account for the payment. Defaults to the transaction's source account.
 * @param {string} [opts.source]
 * @returns {xdr.CreateAssetOp}
 */
export const createAsset = function(opts) {

  if (!opts.asset) {
    throw new Error("Must provide an asset for a createAsset operation");
  }
  if (!isUndefined(opts.minfee) && !this.isValidAmount(opts.minfee, true)) {
    throw new TypeError(this.constructAmountRequirementsError('min fee'));
  }

  let attributes = {};
  attributes.asset = opts.asset.toXDRObject();


  attributes.fee = this._checkUnsignedIntValue("fee", opts.fee);
  attributes.ratio = this._checkUnsignedIntValue("ratio", opts.ratio);
  attributes.minfee = this._toXDRAmount(opts.minfee);

  //attributes.beneficiary = Keypair.fromPublicKey(opts.beneficiary).xdrAccountId();
  if (attributes.fee == 0 &&  attributes.minfee == 0) {
    if (!(isString(opts.beneficiary) && opts.beneficiary.length == 0)) {
      throw new Error("beneficiary must be empty when fee and minfee are zero");
    }
  } else {
    if (!(isString(opts.beneficiary) && opts.beneficiary.length == 56)) {
      throw new Error("beneficiary is invalid");
    }
    if (!StrKey.isValidEd25519PublicKey(opts.beneficiary)) {
      throw new Error("beneficiary is invalid");
    }
  }
  attributes.beneficiary =  opts.beneficiary;

  let createAsset = new xdr.CreateAssetOp(attributes);
  let opAttributes = {};
  opAttributes.body = xdr.OperationBody.createAsset(createAsset);
  this.setSourceAccount(opAttributes, opts);
  return new xdr.Operation(opAttributes);
};