uni-request/src/class.js

基于Promise封装uni-app的request方法,h5和小程序均可使用

import * as util  from './helpers/util';
import InterceptorManager from './InterceptorManager';
import { dispatchRequest } from './core/dispatchRequest';


class Request {
    constructor( config ){
        this.defaults = config;
        this.interceptors = {
            request: new InterceptorManager(),
            response: new InterceptorManager()
        };
    }
    request( config ){
        if( typeof config === 'string'){
            config = util.merge({url: arguments[0]}, arguments[1]);
        }

        config = util.deepMerge(this.defaults , config );
        config.method = config.method ? config.method.toLowerCase() : 'get' ;

        let chain = [dispatchRequest, undefined];
        let promise = Promise.resolve( config );

        this.interceptors.request.forEach(function(interceptor) {
            chain.unshift(interceptor.fulfilled, interceptor.rejected);
        });
    
        this.interceptors.response.forEach(function(interceptor) {
            chain.push(interceptor.fulfilled, interceptor.rejected);
        });

        while (chain.length) {
            promise = promise.then(chain.shift(), chain.shift());
        }
    
        return promise;
    }
    all (promises){
        return Promise.all(promises);
    }
}



['delete', 'get', 'head', 'options', 'trace'].forEach(method => {
    Request.prototype[method] = function ( url,config ) {
        return this.request( util.merge(config || {} ,{
            method,
            url
        }) );
    }
});




['post', 'put', 'patch' ].forEach(method => {
    Request.prototype[method] = function ( url, data, config ) {
        return this.request( util.merge(config || {} ,{
            method,
            url,
            data
        }) );
    }
});



export default Request;