app_vue2/services/connection/connection.ts

import {DataPersisterArgs, DataProviderArgs} from "~/types/interfaces";
import {HTTP_METHOD} from "~/types/enums";
import {NuxtAxiosInstance} from "@nuxtjs/axios";
import {AxiosRequestConfig} from "axios";

class Connection{
  static connector:NuxtAxiosInstance;

  constructor() {
  }

  static initConnector(connector: NuxtAxiosInstance){
    Connection.connector = connector
  }

  async invoke(method: HTTP_METHOD, url: string, args:DataProviderArgs|DataPersisterArgs): Promise<any>{
    switch (method) {
      case HTTP_METHOD.GET:
        if(args.id)
          return await this.getItem(url, args.id)
        else
          return await this.getCollection(url)
    }
    return null
  }

  private async getItem(url: string, id: number): Promise<any>{
    const config:AxiosRequestConfig = {
      url: `${url}/${id}`,
      method: HTTP_METHOD.GET,
    }
    return await this.request(config)
  }

  private async getCollection(url: string): Promise<any>{
    const config:AxiosRequestConfig = {
      url: `${url}`,
      method: HTTP_METHOD.GET,
    }
    return await this.request(config)
  }

  private async request(config:AxiosRequestConfig){
    return await Connection.connector.$request(config)
  }
}

export default Connection