test-triam-base-contract/src/contr_operations/query.js

Low level triam smart cotnract support library

import {default as xdr} from "../generated/stellar-xdr_generated";
import {Keypair} from "../keypair";
import {StrKey} from "../strkey";
import isUndefined from 'lodash/isUndefined';
import isString from 'lodash/isString';

/**
 * Create a query operation.
 * @function
 * @alias ContrOperation.query
 * @param {object} opts
 * @param {string} opts.data - query data.
 * @returns {xdr.Query}
 */
export const query = function(opts) {

  let attributes = {};

  if (!isString(opts.data) &&
      !Buffer.isBuffer(opts.data) && opts.data !== null) {
    throw new Error("data must be a string, Buffer or null");
  }

  if (isString(opts.data)) {
    opts.data = Buffer.from(opts.data);
  }

  attributes.data        = opts.data;
  let query             = new xdr.Query(attributes);

  let opAttributes = {};
  opAttributes.body = xdr.ContrOperationBody.query(query);

  return new xdr.ContrOperation(opAttributes);
};