How to send request to uniapp official website

In recent years, with the popularity of mobile Internet, more and more people have begun to use mobile phones for website browsing, shopping, social networking and other activities. This has also driven many companies to develop mobile applications to improve user experience. For developers, how to develop a mobile application quickly and efficiently has become one of the biggest challenges. With the continuous evolution of various front-end technologies, a technology called "Uni-App" is increasingly favored by developers. This article will introduce how to initiate a request to the official website in Uni-App.

1. What is Uni-App

Uni-App is a cross-platform application development framework launched by DCloud. It can be developed once using Vue syntax and published to Android, iOS, H5, Various platforms such as mini programs and quick applications. Compared with traditional native development, Uni-App development is more efficient and has lower maintenance costs, while also ensuring good performance and user experience.

2. How Uni-App initiates a request

Initiating a request in Uni-App mainly requires the use of the uni.request() interface, which encapsulates wx in the mini program for Uni-App. request() interface and XMLHttpRequest interface in H5. Use this interface to implement operations such as network requests, file uploads and downloads.

1. Send GET request

When sending a GET request, you can set the request url, header, data and other parameters. The url parameter needs to specify the complete request address, the header parameter can set the request header information, and the data parameter can set the request parameters.

uni.request({
  url: 'https://www.example.com/api/user',
  data: {},
  header: {},
  success: (res) => {
    console.log(res.data);
  },
  fail: (err) => {
    console.log(err);
  }
});

2. Send a POST request

Sending a POST request is similar to a GET request. You only need to specify the request method as "POST" in the parameters. At the same time, request parameters can be set in the request body.

uni.request({
  url: 'https://www.example.com/api/user',
  method: 'POST',
  data: {},
  header: {},
  success: (res) => {
    console.log(res.data);
  },
  fail: (err) => {
    console.log(err);
  }
});

3. Send a file upload request

When sending a file upload request, you need to specify the request header information as "multipart/form-data" and set the formData parameter to be uploaded document.

uni.uploadFile({
  url: 'https://www.example.com/api/upload',
  filePath: '',
  name: '',
  formData: {},
  header: {},
  success: (res) => {
    console.log(res.data);
  },
  fail: (err) => {
    console.log(err);
  }
});

3. How to send requests to the official website in Uni-App

There is no essential difference between sending requests to the official website in Uni-App and sending requests to other sites. Just set the request address to the official website address, set the request parameters and request header information.

uni.request({
  url: 'https://www.uniapp.com/api/user',
  data: {},
  header: {},
  success: (res) => {
    console.log(res.data);
  },
  fail: (err) => {
    console.log(err);
  }
});

It should be noted that some official websites may set CORS (cross-domain resource sharing) restrictions, causing the request to fail. At this time, you need to make relevant settings on the official website to open the corresponding request source.

In short, it is not difficult to initiate a request to the official website in Uni-App. You only need to understand the network request interface of Uni-App and set the corresponding request parameters and request header information. We believe that the simplicity, efficiency and cross-platform features of Uni-App will attract more developers to join and contribute to the development of mobile applications.

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