All files / test/Metadata/fixtures FixtureBuilder.ts

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import * as Queries from './queries';
import { Cardano } from '@cardano-sdk/core';
import { Logger } from 'ts-log';
import { Pool, QueryResult } from 'pg';
import { bufferToHexString } from '@cardano-sdk/util';
 
export class MetadataFixtureBuilder {
  #db: Pool;
  #logger: Logger;
 
  constructor(db: Pool, logger: Logger) {
    this.#db = db;
    this.#logger = logger;
  }
 
  public async getTxIds(desiredQty: number) {
    this.#logger.debug('About to query tx with metadata');
    const result: QueryResult<{ tx_id: Buffer }> = await this.#db.query(Queries.findTxWithMetadata, [desiredQty]);
 
    const resultsQty = result.rows.length;
    Iif (result.rows.length === 0) {
      throw new Error('No transactions found');
    } else Iif (resultsQty < desiredQty) {
      this.#logger.warn(`${desiredQty} transactions desired, only ${resultsQty} results found`);
    }
 
    return result.rows.map(({ tx_id }) => bufferToHexString(tx_id) as unknown as Cardano.TransactionId);
  }
}