index.js 4.3 KB

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  1. 'use strict';
  2. import utils from '../utils.js';
  3. import AxiosError from '../core/AxiosError.js';
  4. import transitionalDefaults from './transitional.js';
  5. import toFormData from '../helpers/toFormData.js';
  6. import toURLEncodedForm from '../helpers/toURLEncodedForm.js';
  7. import platform from '../platform/index.js';
  8. import formDataToJSON from '../helpers/formDataToJSON.js';
  9. /**
  10. * It takes a string, tries to parse it, and if it fails, it returns the stringified version
  11. * of the input
  12. *
  13. * @param {any} rawValue - The value to be stringified.
  14. * @param {Function} parser - A function that parses a string into a JavaScript object.
  15. * @param {Function} encoder - A function that takes a value and returns a string.
  16. *
  17. * @returns {string} A stringified version of the rawValue.
  18. */
  19. function stringifySafely(rawValue, parser, encoder) {
  20. if (utils.isString(rawValue)) {
  21. try {
  22. (parser || JSON.parse)(rawValue);
  23. return utils.trim(rawValue);
  24. } catch (e) {
  25. if (e.name !== 'SyntaxError') {
  26. throw e;
  27. }
  28. }
  29. }
  30. return (encoder || JSON.stringify)(rawValue);
  31. }
  32. const defaults = {
  33. transitional: transitionalDefaults,
  34. adapter: ['xhr', 'http'],
  35. transformRequest: [function transformRequest(data, headers) {
  36. const contentType = headers.getContentType() || '';
  37. const hasJSONContentType = contentType.indexOf('application/json') > -1;
  38. const isObjectPayload = utils.isObject(data);
  39. if (isObjectPayload && utils.isHTMLForm(data)) {
  40. data = new FormData(data);
  41. }
  42. const isFormData = utils.isFormData(data);
  43. if (isFormData) {
  44. if (!hasJSONContentType) {
  45. return data;
  46. }
  47. return hasJSONContentType ? JSON.stringify(formDataToJSON(data)) : data;
  48. }
  49. if (utils.isArrayBuffer(data) ||
  50. utils.isBuffer(data) ||
  51. utils.isStream(data) ||
  52. utils.isFile(data) ||
  53. utils.isBlob(data)
  54. ) {
  55. return data;
  56. }
  57. if (utils.isArrayBufferView(data)) {
  58. return data.buffer;
  59. }
  60. if (utils.isURLSearchParams(data)) {
  61. headers.setContentType('application/x-www-form-urlencoded;charset=utf-8', false);
  62. return data.toString();
  63. }
  64. let isFileList;
  65. if (isObjectPayload) {
  66. if (contentType.indexOf('application/x-www-form-urlencoded') > -1) {
  67. return toURLEncodedForm(data, this.formSerializer).toString();
  68. }
  69. if ((isFileList = utils.isFileList(data)) || contentType.indexOf('multipart/form-data') > -1) {
  70. const _FormData = this.env && this.env.FormData;
  71. return toFormData(
  72. isFileList ? {'files[]': data} : data,
  73. _FormData && new _FormData(),
  74. this.formSerializer
  75. );
  76. }
  77. }
  78. if (isObjectPayload || hasJSONContentType ) {
  79. headers.setContentType('application/json', false);
  80. return stringifySafely(data);
  81. }
  82. return data;
  83. }],
  84. transformResponse: [function transformResponse(data) {
  85. const transitional = this.transitional || defaults.transitional;
  86. const forcedJSONParsing = transitional && transitional.forcedJSONParsing;
  87. const JSONRequested = this.responseType === 'json';
  88. if (data && utils.isString(data) && ((forcedJSONParsing && !this.responseType) || JSONRequested)) {
  89. const silentJSONParsing = transitional && transitional.silentJSONParsing;
  90. const strictJSONParsing = !silentJSONParsing && JSONRequested;
  91. try {
  92. return JSON.parse(data);
  93. } catch (e) {
  94. if (strictJSONParsing) {
  95. if (e.name === 'SyntaxError') {
  96. throw AxiosError.from(e, AxiosError.ERR_BAD_RESPONSE, this, null, this.response);
  97. }
  98. throw e;
  99. }
  100. }
  101. }
  102. return data;
  103. }],
  104. /**
  105. * A timeout in milliseconds to abort a request. If set to 0 (default) a
  106. * timeout is not created.
  107. */
  108. timeout: 0,
  109. xsrfCookieName: 'XSRF-TOKEN',
  110. xsrfHeaderName: 'X-XSRF-TOKEN',
  111. maxContentLength: -1,
  112. maxBodyLength: -1,
  113. env: {
  114. FormData: platform.classes.FormData,
  115. Blob: platform.classes.Blob
  116. },
  117. validateStatus: function validateStatus(status) {
  118. return status >= 200 && status < 300;
  119. },
  120. headers: {
  121. common: {
  122. 'Accept': 'application/json, text/plain, */*',
  123. 'Content-Type': undefined
  124. }
  125. }
  126. };
  127. utils.forEach(['delete', 'get', 'head', 'post', 'put', 'patch'], (method) => {
  128. defaults.headers[method] = {};
  129. });
  130. export default defaults;