UniApp implements the design and development method of API interface encapsulation and request method

UniApp implements the design and development method of API interface encapsulation and request method

Introduction: UniApp is a cross-platform development framework based on Vue.js, which can develop iOS, Android and H5 applications at the same time. In UniApp, the design and development of API interface encapsulation and request methods is a very important part. This article will introduce how to use UniApp to implement the design and development of API interface encapsulation and request methods, and provide relevant code examples.

1. Design API interface encapsulation method
In UniApp, we can uniformly manage and encapsulate all API interfaces for easy calling and management. Generally speaking, we can divide the API interface into different modules, and each module corresponds to a file. We can write the module's routing information, request address, request method and other information in a configuration file and export an object. Next, let's take a closer look at how to design the API interface encapsulation method.

1. Create an api folder to store all API interface files.
2. Create a config.js file in the api folder to configure the routing information, request address, request method and other information of the interface. The sample code is as follows:

export default {
  // 登录接口
  login: {
    url: '/api/login',
    method: 'post'
  },
  // 获取用户信息接口
  getUserInfo: {
    url: '/api/user',
    method: 'get'
  },
  // 修改用户信息接口
  updateUserInfo: {
    url: '/api/user',
    method: 'put'
  }
};

3. Create an index.js file in the api folder for unified management and export of all API interfaces. The sample code is as follows:

import config from './config';

const install = Vue => {
  if (install.installed) return;

  install.installed = true;

  Object.defineProperties(Vue.prototype, {
    $api: {
      get() {
        const api = {};

        for (const key in config) {
          const { url, method } = config[key];

          api[key] = (data, options) =>
            new Promise((resolve, reject) => {
              uni.request({
                url,
                method,
                data,
                success: res => {
                  resolve(res.data);
                },
                fail: err => {
                  reject(err);
                },
                ...options
              });
            });
        }

        return api;
      }
    }
  });
};

export default {
  install
};

2. Develop API request method
In UniApp, you can use the uni.request method to send API requests. For ease of use, we can encapsulate a layer of API request methods to make it easier to use and more unified.

1. Create a request.js file in the api folder to encapsulate the API request method. The sample code is as follows:

const request = (url, method, data, options) =>
  new Promise((resolve, reject) => {
    uni.request({
      url,
      method,
      data,
      success: res => {
        resolve(res.data);
      },
      fail: err => {
        reject(err);
      },
      ...options
    });
  });

export default request;

2. Introduce request.js into the index.js file in the api folder, and modify the corresponding code. The sample code is as follows:

import config from './config';
import request from './request';

const install = Vue => {
  if (install.installed) return;

  install.installed = true;

  Object.defineProperties(Vue.prototype, {
    $api: {
      get() {
        const api = {};

        for (const key in config) {
          const { url, method } = config[key];

          api[key] = (data, options) =>
            request(url, method, data, options);
        }

        return api;
      }
    }
  });
};

export default {
  install
};

3. Use API interface encapsulation and request method
In the UniApp page, we can call the API interface encapsulation and request method through this.$api to process data. ask. The following is a sample code:

<template>
  <view>
    <button @click="login">登录</button>
  </view>
</template>

<script>
export default {
  methods: {
    login() {
      this.$api.login({ username: 'admin', password: '123456' })
        .then(res => {
          console.log(res);
        })
        .catch(err => {
          console.error(err);
        });
    }
  }
};
</script>

In this sample code, the login interface is called by clicking the button to trigger the login method, passing the username and password as parameters. If the request is successful, the returned data will be output on the console. If it fails, an error message will be output on the console.

Conclusion: By using UniApp to implement the design and development of API interface encapsulation and request methods, the code writing and maintenance work can be greatly simplified and development efficiency improved. I hope that the introduction in this article can help you better use UniApp for development. If you have any questions, please leave a message for discussion.

The above is the detailed content of UniApp implements the design and development method of API interface encapsulation and request method. For more information, please follow other related articles on the PHP Chinese website!