@node-server/renderer/src/ressource.renderer.ts

NodeServerJs is a library with standard feature implemented for web and api

import * as fs from "fs";
import * as path from "path";
import * as url from 'url';
import { Renderer } from "@node-server/utils";

export class RessourceRenderer  extends Renderer {
    DefaultFile:string;
    constructor(config) {
        super({
            default :{
                debug : false,
                default_file : "index.html",
                folder : "dist",
                case_sensitive : false,
                extentions : ["png", "ico", "svg", "jpeg", "jpg", "ott", "txt" , "js" , "css" ,"map" , "woff" , "ttf" , "json"]
           },
            userDefined : config
        });
        
        if(!this.pluginConfig.case_sensitive)
            this.pluginConfig.extentions.map(x => typeof x === "string" ? x.toLowerCase() : x);

    }
    Start(app){
        super.Start(app);
        this.DefaultFile = this.Config.GetFolder(this.pluginConfig.folder,this.pluginConfig.default_file)
    }
    Condition(req, res){
        var extension = path.extname(url.parse(req.url).pathname).replace(".", "");
        if(this.pluginConfig.case_sensitive)
            extension = extension.toLowerCase();
        return this.pluginConfig.extentions.indexOf(extension) > -1;
    }
    Handle(req: any, res: any, next:(any) => void): void {
        var file = this.Config.GetFolder(this.pluginConfig.folder,req.originalUrl);
        file = url.parse(file).pathname;
        if (fs.existsSync(file))
             res.sendFile(file);
        else {
            file = this.DefaultFile;
            if (fs.existsSync(file))
                res.status(404).sendFile(file);
            else
                throw new Error("Default file not found in directory")   
        }   
    }

  

}