1. /**
  2. * Converts user records from one format to another with retry logic.
  3. *
  4. * @param {object} record - The user record to convert.
  5. * @param {string} fromFormat - The format of the input record (e.g., 'old', 'csv').
  6. * @param {string} toFormat - The desired format for the output record (e.g., 'new', 'json').
  7. * @param {number} maxRetries - The maximum number of retry attempts.
  8. * @param {number} retryDelay - The delay in milliseconds between retries.
  9. * @returns {Promise<object|null>} - A promise that resolves with the converted record or null if conversion fails after all retries.
  10. */
  11. async function convertRecord(record, fromFormat, toFormat, maxRetries, retryDelay) {
  12. let retries = 0;
  14. while (retries < maxRetries) {
  15. try {
  16. // Perform the format conversion. Replace with your actual conversion logic.
  17. let convertedRecord = convert(record, fromFormat, toFormat);
  19. if (convertedRecord) {
  20. return convertedRecord; // Conversion successful, resolve the promise.
  21. } else {
  22. retries++;
  23. console.warn(`Conversion failed (attempt ${retries}/${maxRetries}).`);
  24. await new Promise(resolve => setTimeout(resolve, retryDelay)); // Wait before retrying.
  25. }
  26. } catch (error) {
  27. retries++;
  28. console.error(`Conversion error (attempt ${retries}/${maxRetries}):`, error);
  29. await new Promise(resolve => setTimeout(resolve, retryDelay)); // Wait before retrying.
  30. }
  31. }
  33. console.error(`Conversion failed after ${maxRetries} attempts.`);
  34. return null; // Conversion failed after all retries.
  35. }
  38. /**
  39. * Placeholder function for the actual conversion logic. Replace this with your implementation.
  40. * @param {object} record - The input record.
  41. * @param {string} fromFormat - The input format.
  42. * @param {string} toFormat - The desired format.
  43. * @returns {object|null} The converted record or null if conversion fails.
  44. */
  45. function convert(record, fromFormat, toFormat) {
  46. // Example conversion logic (replace with your code)
  47. if (fromFormat === 'old' && toFormat === 'new') {
  48. if (record && record.id) {
  49. return {
  50. id: record.id,
  51. name: record.name,
  52. email: record.email
  53. };
  54. } else {
  55. return null;
  56. }
  57. } else if (fromFormat === 'csv' && toFormat === 'json') {
  58. //Simulating CSV to JSON conversion
  59. if (record && record.fields) {
  60. return JSON.parse(record.fields);
  61. }else{
  62. return null;
  63. }
  64. }
  65. else {
  66. console.warn(`Conversion from ${fromFormat} to ${toFormat} not implemented.`);
  67. return null;
  68. }
  69. }
  73. // Example Usage (replace with your actual data and parameters)
  74. async function testConversion() {
  75. const record1 = { id: 123, name: 'Alice', email: 'alice@example.com' };
  76. const record2 = { fields: "{\"col1\": \"val1\", \"col2\": \"val2\"}" };
  79. const convertedRecord1 = await convertRecord(record1, 'old', 'new', 3, 500);
  80. console.log("Converted Record 1:", convertedRecord1);
  82. const convertedRecord2 = await convertRecord(record2, 'csv', 'json', 3, 500);
  83. console.log("Converted Record 2:", convertedRecord2);
  85. const failedRecord = { };
  86. const convertedFailed = await convertRecord(failedRecord, 'old', 'new', 3, 500);
  87. console.log("Converted Failed Record:", convertedFailed);
  88. }
  90. //testConversion();

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