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110 lines
2.6 KiB
110 lines
2.6 KiB
//服务端地址
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import {server} from "./api";
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export enum Method {
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PUT="PUT",
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POST="POST",
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GET="GET"
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}
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export enum Result {
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OK="OK",
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FAIL="FAIL"
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}
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/**
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* 响应数据
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*/
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export class JSONResponse<Q> {
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result?:Result
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customResult?:Q
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}
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/**
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* 数据类型转换
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*/
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export abstract class TransformData<Q,T extends JSONResponse<Q>> {
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protected target: T
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constructor() {
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this.target = this.newObject();
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}
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protected abstract newObject(): T
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public transform(data:any){
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this.transformResult(data)
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this.transformBody(data)
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return this.target
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}
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protected transformBody(data:any){
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}
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private transformResult(data:any){
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if("result" in data ) {
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this.target.result = data.result
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}
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if("customResult" in data){
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this.target.customResult = data.customResult
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}
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}
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}
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//发送请求
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export function request<Q,E extends JSONResponse<Q>,T extends TransformData<Q,E>>(api:string,method:Method,formParams: {[propName:string]: string | Blob|Array<string>},transform:T,callback:Function) {
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let formData
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let queryParams=''
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if(method===Method.GET) {
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for(let formParam in formParams){
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let params=formParams[formParam]
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if(params instanceof Array) {
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for(let value in params){
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queryParams+='&'+formParam+'='+params[value]
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}
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}else{
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queryParams += '&' + formParam + '=' + params
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}
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}
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queryParams='?'+queryParams.substr(1)
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}else{
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formData=new FormData()
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for (let formParam in formParams) {
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let params= formParams[formParam]
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if(params instanceof Array){
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for(let value in params){
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if(params.hasOwnProperty(value)) {
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formData.append(formParam + '[]', params[value])
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}
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}
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}else if(params instanceof Blob||typeof params==="string"){
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formData.append(formParam,params)
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}
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}
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}
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fetch(server+api+queryParams,{
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method:method,
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body:formData,
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credentials: 'include',
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})
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.then(
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response=>{if(response.status===200){
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return response.json()
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}else{
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throw new Error("遇到无法处理的错误，请联系管理员")
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}}
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)
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.catch(
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error =>console.error('Error:', error)
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)
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.then((response:JSONResponse<Q>)=>{
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callback(transform.transform(response))
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})
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}
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