\nconst restClient = new RestClient();\nrestClient.get('...')\n .then(function(data) {\n console.log(data);\n })\n .catch(err => console.log(err));\n\n*/\nvar RestClient = /** @class */ (function () {\n /**\n * @param {RestClientOptions} [options] - Instance options\n */\n function RestClient(options) {\n this._region = 'us-east-1'; // this will be updated by endpoint function\n this._service = 'execute-api'; // this can be updated by endpoint function\n this._custom_header = undefined; // this can be updated by endpoint function\n /**\n * This weak map provides functionality to let clients cancel\n * in-flight axios requests. https://github.com/axios/axios#cancellation\n *\n * 1. For every axios request, a unique cancel token is generated and added in the request.\n * 2. Promise for fulfilling the request is then mapped to that unique cancel token.\n * 3. The promise is returned to the client.\n * 4. Clients can either wait for the promise to fulfill or call `API.cancel(promise)` to cancel the request.\n * 5. If `API.cancel(promise)` is called, then the corresponding cancel token is retrieved from the map below.\n * 6. Promise returned to the client will be in rejected state with the error provided during cancel.\n * 7. Clients can check if the error is because of cancelling by calling `API.isCancel(error)`.\n *\n * For more details, see https://github.com/aws-amplify/amplify-js/pull/3769#issuecomment-552660025\n */\n this._cancelTokenMap = null;\n this.Credentials = Credentials;\n this._options = options;\n logger.debug('API Options', this._options);\n if (this._cancelTokenMap == null) {\n this._cancelTokenMap = new WeakMap();\n }\n }\n /**\n * Update AWS credentials\n * @param {AWSCredentials} credentials - AWS credentials\n *\n updateCredentials(credentials: AWSCredentials) {\n this.options.credentials = credentials;\n }\n*/\n /**\n * Basic HTTP request. Customizable\n * @param {string | ApiInfo } urlOrApiInfo - Full request URL or Api information\n * @param {string} method - Request HTTP method\n * @param {json} [init] - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestClient.prototype.ajax = function (urlOrApiInfo, method, init) {\n return __awaiter(this, void 0, void 0, function () {\n var parsed_url, url, region, service, custom_header, params, libraryHeaders, userAgent, initParams, isAllResponse, custom_header_obj, _a, _b, search, parsedUrl;\n var _this = this;\n return __generator(this, function (_c) {\n switch (_c.label) {\n case 0:\n logger.debug(method, urlOrApiInfo);\n region = 'us-east-1';\n service = 'execute-api';\n custom_header = undefined;\n if (typeof urlOrApiInfo === 'string') {\n parsed_url = this._parseUrl(urlOrApiInfo);\n url = urlOrApiInfo;\n }\n else {\n (url = urlOrApiInfo.endpoint, custom_header = urlOrApiInfo.custom_header, region = urlOrApiInfo.region, service = urlOrApiInfo.service);\n parsed_url = this._parseUrl(urlOrApiInfo.endpoint);\n }\n params = {\n method: method,\n url: url,\n host: parsed_url.host,\n path: parsed_url.path,\n headers: {},\n data: null,\n responseType: 'json',\n timeout: 0,\n cancelToken: null,\n };\n libraryHeaders = {};\n if (Platform.isReactNative) {\n userAgent = Platform.userAgent || 'aws-amplify/0.1.x';\n libraryHeaders = {\n 'User-Agent': userAgent,\n };\n }\n initParams = Object.assign({}, init);\n isAllResponse = initParams.response;\n if (initParams.body) {\n if (typeof FormData === 'function' &&\n initParams.body instanceof FormData) {\n libraryHeaders['Content-Type'] = 'multipart/form-data';\n params.data = initParams.body;\n }\n else {\n libraryHeaders['Content-Type'] = 'application/json; charset=UTF-8';\n params.data = JSON.stringify(initParams.body);\n }\n }\n if (initParams.responseType) {\n params.responseType = initParams.responseType;\n }\n if (initParams.withCredentials) {\n params['withCredentials'] = initParams.withCredentials;\n }\n if (initParams.timeout) {\n params.timeout = initParams.timeout;\n }\n if (initParams.cancellableToken) {\n params.cancelToken = initParams.cancellableToken.token;\n }\n params['signerServiceInfo'] = initParams.signerServiceInfo;\n if (!(typeof custom_header === 'function')) return [3 /*break*/, 2];\n return [4 /*yield*/, custom_header()];\n case 1:\n _a = _c.sent();\n return [3 /*break*/, 3];\n case 2:\n _a = undefined;\n _c.label = 3;\n case 3:\n custom_header_obj = _a;\n params.headers = __assign(__assign(__assign({}, libraryHeaders), custom_header_obj), initParams.headers);\n _b = parse(url, true, true), search = _b.search, parsedUrl = __rest(_b, [\"search\"]);\n params.url = format(__assign(__assign({}, parsedUrl), { query: __assign(__assign({}, parsedUrl.query), (initParams.queryStringParameters || {})) }));\n // Do not sign the request if client has added 'Authorization' header,\n // which means custom authorizer.\n if (typeof params.headers['Authorization'] !== 'undefined') {\n params.headers = Object.keys(params.headers).reduce(function (acc, k) {\n if (params.headers[k]) {\n acc[k] = params.headers[k];\n }\n return acc;\n // tslint:disable-next-line:align\n }, {});\n return [2 /*return*/, this._request(params, isAllResponse)];\n }\n // Signing the request in case there credentials are available\n return [2 /*return*/, this.Credentials.get().then(function (credentials) {\n return _this._signed(__assign({}, params), credentials, isAllResponse, {\n region: region,\n service: service,\n }).catch(function (error) {\n if (DateUtils.isClockSkewError(error)) {\n var headers = error.response.headers;\n var dateHeader = headers && (headers.date || headers.Date);\n var responseDate = new Date(dateHeader);\n var requestDate = DateUtils.getDateFromHeaderString(params.headers['x-amz-date']);\n if (DateUtils.isClockSkewed(requestDate, responseDate)) {\n DateUtils.setClockOffset(responseDate.getTime() - requestDate.getTime());\n return _this.ajax(urlOrApiInfo, method, init);\n }\n }\n throw error;\n });\n }, function (err) {\n logger.debug('No credentials available, the request will be unsigned');\n return _this._request(params, isAllResponse);\n })];\n }\n });\n });\n };\n /**\n * GET HTTP request\n * @param {string | ApiInfo } urlOrApiInfo - Full request URL or Api information\n * @param {JSON} init - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestClient.prototype.get = function (urlOrApiInfo, init) {\n return this.ajax(urlOrApiInfo, 'GET', init);\n };\n /**\n * PUT HTTP request\n * @param {string | ApiInfo } urlOrApiInfo - Full request URL or Api information\n * @param {json} init - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestClient.prototype.put = function (urlOrApiInfo, init) {\n return this.ajax(urlOrApiInfo, 'PUT', init);\n };\n /**\n * PATCH HTTP request\n * @param {string | ApiInfo } urlOrApiInfo - Full request URL or Api information\n * @param {json} init - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestClient.prototype.patch = function (urlOrApiInfo, init) {\n return this.ajax(urlOrApiInfo, 'PATCH', init);\n };\n /**\n * POST HTTP request\n * @param {string | ApiInfo } urlOrApiInfo - Full request URL or Api information\n * @param {json} init - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestClient.prototype.post = function (urlOrApiInfo, init) {\n return this.ajax(urlOrApiInfo, 'POST', init);\n };\n /**\n * DELETE HTTP request\n * @param {string | ApiInfo } urlOrApiInfo - Full request URL or Api information\n * @param {json} init - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestClient.prototype.del = function (urlOrApiInfo, init) {\n return this.ajax(urlOrApiInfo, 'DELETE', init);\n };\n /**\n * HEAD HTTP request\n * @param {string | ApiInfo } urlOrApiInfo - Full request URL or Api information\n * @param {json} init - Request extra params\n * @return {Promise} - A promise that resolves to an object with response status and JSON data, if successful.\n */\n RestClient.prototype.head = function (urlOrApiInfo, init) {\n return this.ajax(urlOrApiInfo, 'HEAD', init);\n };\n /**\n * Cancel an inflight API request\n * @param {Promise, or missing
. Bailing hydration and performing ' +\n 'full client-side render.'\n );\n }\n }\n // either not server-rendered, or hydration failed.\n // create an empty node and replace it\n oldVnode = emptyNodeAt(oldVnode);\n }\n\n // replacing existing element\n var oldElm = oldVnode.elm;\n var parentElm = nodeOps.parentNode(oldElm);\n\n // create new node\n createElm(\n vnode,\n insertedVnodeQueue,\n // extremely rare edge case: do not insert if old element is in a\n // leaving transition. Only happens when combining transition +\n // keep-alive + HOCs. (#4590)\n oldElm._leaveCb ? null : parentElm,\n nodeOps.nextSibling(oldElm)\n );\n\n // update parent placeholder node element, recursively\n if (isDef(vnode.parent)) {\n var ancestor = vnode.parent;\n var patchable = isPatchable(vnode);\n while (ancestor) {\n for (var i = 0; i < cbs.destroy.length; ++i) {\n cbs.destroy[i](ancestor);\n }\n ancestor.elm = vnode.elm;\n if (patchable) {\n for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {\n cbs.create[i$1](emptyNode, ancestor);\n }\n // #6513\n // invoke insert hooks that may have been merged by create hooks.\n // e.g. for directives that uses the \"inserted\" hook.\n var insert = ancestor.data.hook.insert;\n if (insert.merged) {\n // start at index 1 to avoid re-invoking component mounted hook\n for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {\n insert.fns[i$2]();\n }\n }\n } else {\n registerRef(ancestor);\n }\n ancestor = ancestor.parent;\n }\n }\n\n // destroy old node\n if (isDef(parentElm)) {\n removeVnodes([oldVnode], 0, 0);\n } else if (isDef(oldVnode.tag)) {\n invokeDestroyHook(oldVnode);\n }\n }\n }\n\n invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);\n return vnode.elm\n }\n}\n\n/* */\n\nvar directives = {\n create: updateDirectives,\n update: updateDirectives,\n destroy: function unbindDirectives (vnode) {\n updateDirectives(vnode, emptyNode);\n }\n};\n\nfunction updateDirectives (oldVnode, vnode) {\n if (oldVnode.data.directives || vnode.data.directives) {\n _update(oldVnode, vnode);\n }\n}\n\nfunction _update (oldVnode, vnode) {\n var isCreate = oldVnode === emptyNode;\n var isDestroy = vnode === emptyNode;\n var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);\n var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);\n\n var dirsWithInsert = [];\n var dirsWithPostpatch = [];\n\n var key, oldDir, dir;\n for (key in newDirs) {\n oldDir = oldDirs[key];\n dir = newDirs[key];\n if (!oldDir) {\n // new directive, bind\n callHook$1(dir, 'bind', vnode, oldVnode);\n if (dir.def && dir.def.inserted) {\n dirsWithInsert.push(dir);\n }\n } else {\n // existing directive, update\n dir.oldValue = oldDir.value;\n dir.oldArg = oldDir.arg;\n callHook$1(dir, 'update', vnode, oldVnode);\n if (dir.def && dir.def.componentUpdated) {\n dirsWithPostpatch.push(dir);\n }\n }\n }\n\n if (dirsWithInsert.length) {\n var callInsert = function () {\n for (var i = 0; i < dirsWithInsert.length; i++) {\n callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);\n }\n };\n if (isCreate) {\n mergeVNodeHook(vnode, 'insert', callInsert);\n } else {\n callInsert();\n }\n }\n\n if (dirsWithPostpatch.length) {\n mergeVNodeHook(vnode, 'postpatch', function () {\n for (var i = 0; i < dirsWithPostpatch.length; i++) {\n callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);\n }\n });\n }\n\n if (!isCreate) {\n for (key in oldDirs) {\n if (!newDirs[key]) {\n // no longer present, unbind\n callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);\n }\n }\n }\n}\n\nvar emptyModifiers = Object.create(null);\n\nfunction normalizeDirectives$1 (\n dirs,\n vm\n) {\n var res = Object.create(null);\n if (!dirs) {\n // $flow-disable-line\n return res\n }\n var i, dir;\n for (i = 0; i < dirs.length; i++) {\n dir = dirs[i];\n if (!dir.modifiers) {\n // $flow-disable-line\n dir.modifiers = emptyModifiers;\n }\n res[getRawDirName(dir)] = dir;\n dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);\n }\n // $flow-disable-line\n return res\n}\n\nfunction getRawDirName (dir) {\n return dir.rawName || ((dir.name) + \".\" + (Object.keys(dir.modifiers || {}).join('.')))\n}\n\nfunction callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {\n var fn = dir.def && dir.def[hook];\n if (fn) {\n try {\n fn(vnode.elm, dir, vnode, oldVnode, isDestroy);\n } catch (e) {\n handleError(e, vnode.context, (\"directive \" + (dir.name) + \" \" + hook + \" hook\"));\n }\n }\n}\n\nvar baseModules = [\n ref,\n directives\n];\n\n/* */\n\nfunction updateAttrs (oldVnode, vnode) {\n var opts = vnode.componentOptions;\n if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {\n return\n }\n if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {\n return\n }\n var key, cur, old;\n var elm = vnode.elm;\n var oldAttrs = oldVnode.data.attrs || {};\n var attrs = vnode.data.attrs || {};\n // clone observed objects, as the user probably wants to mutate it\n if (isDef(attrs.__ob__)) {\n attrs = vnode.data.attrs = extend({}, attrs);\n }\n\n for (key in attrs) {\n cur = attrs[key];\n old = oldAttrs[key];\n if (old !== cur) {\n setAttr(elm, key, cur);\n }\n }\n // #4391: in IE9, setting type can reset value for input[type=radio]\n // #6666: IE/Edge forces progress value down to 1 before setting a max\n /* istanbul ignore if */\n if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {\n setAttr(elm, 'value', attrs.value);\n }\n for (key in oldAttrs) {\n if (isUndef(attrs[key])) {\n if (isXlink(key)) {\n elm.removeAttributeNS(xlinkNS, getXlinkProp(key));\n } else if (!isEnumeratedAttr(key)) {\n elm.removeAttribute(key);\n }\n }\n }\n}\n\nfunction setAttr (el, key, value) {\n if (el.tagName.indexOf('-') > -1) {\n baseSetAttr(el, key, value);\n } else if (isBooleanAttr(key)) {\n // set attribute for blank value\n // e.g. \n if (isFalsyAttrValue(value)) {\n el.removeAttribute(key);\n } else {\n // technically allowfullscreen is a boolean attribute for