fetch-api

问题 I'm trying to get my request to go through to a online game API that I can't seem to get working. I'm using the Fetch API, and some request require Authorization Bearer token , but the request never gets sent with the authorization header. I have tried mode: 'no-cors', credentials: 'include' and obviously putting the Authorization in the header like so header: { 'Authorization': 'Bearer TOKEN' } but the request still does not go with the authorization. Can anyone point me in the right

问题 I am trying fetch data from API in my React JS component. Link to API. This API will populate the number count of each vehicle. The last argument 'audi' corresponds to vehicle make name. I need to fetch that data for 64 different vehicles and create dynamic list items (li) but don't know how to do that. Everything is working except fetchCount function. Here is an example of vehicles data which is imported from '../shared/vehicle_make_and_models' there are total 64 care makes. const veh_data =

问题 So we get a file (an image file) in the front-end like so: //html <input type="file" ng-change="onFileChange"> //javascript $scope.onFileChange = function (e) { e.preventDefault(); let file = e.target.files[0]; // I presume this is just a binary file // I want to HTTP Post this file to a server // without using form-data }; What I want to know is - is there a way to POST this file to a server, without including the file as form-data? The problem is that the server I am send a HTTP POST

问题 I have my fetch request like this. fetch(deafaultUrl + '/v1/users/', { headers: { 'Content-Type': 'application/json' }, method: "POST", body: JSON.stringify(userInfoParams) }) .then(function(response) { console.log(response); console.log(response.json()); // not working never go into this function response.json().then(function(value) { console.log('access promise'); console.log(value); // "Success" }); if (response.status !== 200 && response.status !== 201) { throw new Error("Bad response

问题 I'm trying to query a Firebase database from a Service Worker using the Fetch API. However it doesn't work as expected as I can't get authenticated correctly. Basically what I'm trying to do is from origin https://myproject.firebaseapp.com inside a Service Worker I do a call like this : var fetchOptions = {}; fetchOptions.credentials = 'include'; var url = options.messageUrl; var request = new Request('https://myproject.firebaseio.com/user/foobar.json', fetchOptions); messagePromise = fetch

问题 I have a function like so: check_auth(){ fetch(Urls.check_auth(), { credentials: 'include', method: 'GET' }).then(response => { if(response.ok) return response.json(); }).then(json => { return json.user_logged_in; }); } And then I try to do this: if(this.check_auth()){ // do stuff } else { // do other stuff } But, this.check_auth() is always undefined . What am I missing here? I thought that within fetch's then() was where the resolved Promise object was therefore I thought that I'd get true

问题 Using cordova build Android app , and add cordova hot code push plugin to make app update automatically, and using Fetch API to load JSON files which located in current project directory, the problem is when update the app, any JSON files cannot be reload,and throw the error Fetch API cannot load file:///android_asset/www/xx/xxx.json. URL scheme "file" is not supported. How to solve this Fecth error in Android app? Or is there any plugin that need add to my cordova project? 回答1: https:/

问题 Strange problem with React Native's fetch. It was working previously, not sure what I've changed but it's stopped working. login(data,success,fail){ console.log('doing fb login'); fetch(host+'/api/login?credentials='+data.credentials) .then( (response) => { console.log('got login response'); return response.json(); } ) .then( json => { console.log('got login json'); if(json.result!='fail'){ success(json); } else { fail(json); } return json; }) .catch((error) => { console.warn(error); }); }

问题 I'm using fetch API to get data from other APIs this is my code: var result = fetch(ip, { method: 'get', }).then(response => response.json()) .then(data => { country = data.country_name; let lat = data.latitude; let lon = data.longitude; //fetch weather api with the user country return fetch(`https://api.darksky.net/forecast/efc76f378da9a5bd8bb366a91ec6f550/${lat},${lon}`); }) .then(response => response.json()) .then(data => { // access the data of the weather api console.log(JSON.stringify

问题 my aim is to fetch data from two URLs and perform an action only when both have come back successfully. On the other hand i want to return an error if either of them fail. I have played around with my code and managed to get the desired effect. My question is, is there a more efficient, succinct way of achieving the same functionality? Helper functions let status = (r) => { if (r.ok) { return Promise.resolve(r) } else { return Promise.reject(new Error(r.statusText)) } } let json = (r) => r