index.js 4.5 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. const DEFAULT_CONTENT_TYPE = {
  10. 'Content-Type': undefined
  11. };
  12. /**
  13. * It takes a string, tries to parse it, and if it fails, it returns the stringified version
  14. * of the input
  15. *
  16. * @param {any} rawValue - The value to be stringified.
  17. * @param {Function} parser - A function that parses a string into a JavaScript object.
  18. * @param {Function} encoder - A function that takes a value and returns a string.
  19. *
  20. * @returns {string} A stringified version of the rawValue.
  21. */
  22. function stringifySafely(rawValue, parser, encoder) {
  23. if (utils.isString(rawValue)) {
  24. try {
  25. (parser || JSON.parse)(rawValue);
  26. return utils.trim(rawValue);
  27. } catch (e) {
  28. if (e.name !== 'SyntaxError') {
  29. throw e;
  30. }
  31. }
  32. }
  33. return (encoder || JSON.stringify)(rawValue);
  34. }
  35. const defaults = {
  36. transitional: transitionalDefaults,
  37. adapter: ['xhr', 'http'],
  38. transformRequest: [function transformRequest(data, headers) {
  39. const contentType = headers.getContentType() || '';
  40. const hasJSONContentType = contentType.indexOf('application/json') > -1;
  41. const isObjectPayload = utils.isObject(data);
  42. if (isObjectPayload && utils.isHTMLForm(data)) {
  43. data = new FormData(data);
  44. }
  45. const isFormData = utils.isFormData(data);
  46. if (isFormData) {
  47. if (!hasJSONContentType) {
  48. return data;
  49. }
  50. return hasJSONContentType ? JSON.stringify(formDataToJSON(data)) : data;
  51. }
  52. if (utils.isArrayBuffer(data) ||
  53. utils.isBuffer(data) ||
  54. utils.isStream(data) ||
  55. utils.isFile(data) ||
  56. utils.isBlob(data)
  57. ) {
  58. return data;
  59. }
  60. if (utils.isArrayBufferView(data)) {
  61. return data.buffer;
  62. }
  63. if (utils.isURLSearchParams(data)) {
  64. headers.setContentType('application/x-www-form-urlencoded;charset=utf-8', false);
  65. return data.toString();
  66. }
  67. let isFileList;
  68. if (isObjectPayload) {
  69. if (contentType.indexOf('application/x-www-form-urlencoded') > -1) {
  70. return toURLEncodedForm(data, this.formSerializer).toString();
  71. }
  72. if ((isFileList = utils.isFileList(data)) || contentType.indexOf('multipart/form-data') > -1) {
  73. const _FormData = this.env && this.env.FormData;
  74. return toFormData(
  75. isFileList ? {'files[]': data} : data,
  76. _FormData && new _FormData(),
  77. this.formSerializer
  78. );
  79. }
  80. }
  81. if (isObjectPayload || hasJSONContentType ) {
  82. headers.setContentType('application/json', false);
  83. return stringifySafely(data);
  84. }
  85. return data;
  86. }],
  87. transformResponse: [function transformResponse(data) {
  88. const transitional = this.transitional || defaults.transitional;
  89. const forcedJSONParsing = transitional && transitional.forcedJSONParsing;
  90. const JSONRequested = this.responseType === 'json';
  91. if (data && utils.isString(data) && ((forcedJSONParsing && !this.responseType) || JSONRequested)) {
  92. const silentJSONParsing = transitional && transitional.silentJSONParsing;
  93. const strictJSONParsing = !silentJSONParsing && JSONRequested;
  94. try {
  95. return JSON.parse(data);
  96. } catch (e) {
  97. if (strictJSONParsing) {
  98. if (e.name === 'SyntaxError') {
  99. throw AxiosError.from(e, AxiosError.ERR_BAD_RESPONSE, this, null, this.response);
  100. }
  101. throw e;
  102. }
  103. }
  104. }
  105. return data;
  106. }],
  107. /**
  108. * A timeout in milliseconds to abort a request. If set to 0 (default) a
  109. * timeout is not created.
  110. */
  111. timeout: 0,
  112. xsrfCookieName: 'XSRF-TOKEN',
  113. xsrfHeaderName: 'X-XSRF-TOKEN',
  114. maxContentLength: -1,
  115. maxBodyLength: -1,
  116. env: {
  117. FormData: platform.classes.FormData,
  118. Blob: platform.classes.Blob
  119. },
  120. validateStatus: function validateStatus(status) {
  121. return status >= 200 && status < 300;
  122. },
  123. headers: {
  124. common: {
  125. 'Accept': 'application/json, text/plain, */*'
  126. }
  127. }
  128. };
  129. utils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) {
  130. defaults.headers[method] = {};
  131. });
  132. utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
  133. defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE);
  134. });
  135. export default defaults;