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make-arvados-request.js 1.7KB

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  1. import wbApplyPromiseOrdering from 'wb-apply-promise-ordering';
  2. const requestPromiseOrdering = {};
  3. function makeArvadosRequest(arvHost, arvToken, endpoint, params={}) {
  4. const defaultParams = {
  5. 'method': 'GET',
  6. 'data': null,
  7. 'contentType': 'application/json;charset=utf-8',
  8. 'responseType': 'json',
  9. 'useSsl': true,
  10. 'requireToken': true,
  11. 'onProgress': () => {},
  12. 'promiseOrdering': true,
  13. 'expectedStatus': 200
  14. };
  15. Object.keys(defaultParams).map(k => (params[k] =
  16. (k in params ? params[k] : defaultParams[k])));
  17. let { method, data, contentType, responseType,
  18. useSsl, requireToken, onProgress, promiseOrdering,
  19. expectedStatus } = params;
  20. if (!(arvHost && (arvToken || !requireToken)))
  21. return new Promise((accept, reject) => reject());
  22. let xhr = new XMLHttpRequest();
  23. xhr.open(method, (useSsl ? 'https://' : 'http://') + arvHost + endpoint);
  24. if (arvToken)
  25. xhr.setRequestHeader('Authorization', 'OAuth2 ' + arvToken);
  26. if (data !== null)
  27. xhr.setRequestHeader('Content-Type', contentType);
  28. xhr.responseType = responseType;
  29. xhr.onprogress = onProgress;
  30. let prom = new Promise((accept, reject) => {
  31. xhr.onreadystatechange = () => {
  32. if (xhr.readyState !== 4)
  33. return;
  34. if ((expectedStatus instanceof Array) &&
  35. expectedStatus.indexOf(xhr.status) !== -1) {
  36. accept(xhr);
  37. } else if (expectedStatus === xhr.status) {
  38. accept(xhr);
  39. } else {
  40. reject(xhr);
  41. }
  42. };
  43. xhr.send(data);
  44. });
  45. if (promiseOrdering)
  46. prom = wbApplyPromiseOrdering(prom, requestPromiseOrdering);
  47. return prom;
  48. }
  49. export default makeArvadosRequest;