@aeternity/aepp-sdk/es/oracle/OracleBase.js

SDK for the æternity blockchain

import { decode } from '../utils/encoder.js';

/**
 * @category oracle
 */

/**
 * @category oracle
 */

function decodeQuery(queryEntry) {
  return {
    ...queryEntry,
    id: queryEntry.id,
    decodedQuery: decode(queryEntry.query).toString(),
    decodedResponse: decode(queryEntry.response).toString()
  };
}

/**
 * This class is needed because `getOracleQuery` would return different values depending on the
 * oracle type.
 * @category oracle
 */
export default class OracleBase {
  /**
   * @param address - Oracle public key
   */
  constructor(address, options) {
    this.address = address;
    this.options = options;
  }

  /**
   * Get oracle entry from the node
   * @param options - Options object
   */
  async getState(options = {}) {
    const opt = {
      ...this.options,
      ...options
    };
    return opt.onNode.getOracleByPubkey(this.address);
  }

  /**
   * Get oracle queries from the node
   * @param options - Options object
   */
  async getQueries(options = {}) {
    const opt = {
      ...this.options,
      ...options
    };
    return (await opt.onNode.getOracleQueriesByPubkey(this.address)).oracleQueries.map(decodeQuery);
  }

  /**
   * Get oracle query entry from the node
   * @param queryId - Oracle query ID
   * @param options - Options object
   */
  async getQuery(queryId, options = {}) {
    const {
      onNode
    } = {
      ...this.options,
      ...options
    };
    const queryEntry = await onNode.getOracleQueryByPubkeyAndQueryId(this.address, queryId);
    return decodeQuery(queryEntry);
  }
}
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