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@dengue8830 dengue8830/http.ts
Created Dec 9, 2018

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Http wrapper allow us changing the implementation and defining our custom http response/request interfaces
import axios, { AxiosInstance, AxiosPromise, AxiosRequestConfig } from 'axios';
import { ErrorExtra } from '../models/errores';
export class HttpError extends ErrorExtra {
status: HttpErrorCode;
constructor(status: HttpErrorCode, mensaje: string = '', extra?: any) {
super(mensaje, extra);
this.status = status;
// Esto quita este constructor del stacktrace pero solo esta disponible en node, no browsers
Error.captureStackTrace(this, ErrorExtra);
}
}
export enum HttpErrorCode {
NoAutorizado = 401
}
export interface IHttpResponse<T> {
data: T;
}
class Http {
instance: AxiosInstance;
constructor() {
this.instance = axios.create();
}
setCredenciales(token: string) {
this.instance.defaults.headers.common.Authorization = 'bearer ' + token;
// JWTUtils.parseJwt(resLogin.data.token).usuario.id
}
prepararError(error: any) {
error.extra = JSON.stringify({
url: error.request.responseURL,
status: error.request.status,
method: error.config.method,
response: error.request.responseText,
});
}
private tratarRequest<T>(axiosPromise: AxiosPromise): Promise<IHttpResponse<T>> {
return new Promise((resolve, reject) => {
axiosPromise.then(res => {
resolve({ data: res.data });
}).catch(error => {
this.prepararError(error);
reject(new HttpError(error.request.status));
});
});
}
get<T = any>(url: string, config?: AxiosRequestConfig): Promise<IHttpResponse<T>> {
return this.tratarRequest<T>(this.instance.get(url, config));
}
post<T = any>(url: string, data?: any, config?: AxiosRequestConfig): Promise<IHttpResponse<T>> {
return this.tratarRequest<T>(this.instance.post(url, data, config));
}
put<T = any>(url: string, data?: any, config?: AxiosRequestConfig): Promise<IHttpResponse<T>> {
return this.tratarRequest<T>(this.instance.put(url, data, config));
}
delete<T = any>(url: string, config?: AxiosRequestConfig): Promise<IHttpResponse<T>> {
return this.tratarRequest<T>(this.instance.delete(url, config));
}
}
export const http = new Http();
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