Node.js
Node.js 기초 최종 코드(생활코딩 따라하기)
Starters
2020. 8. 19. 00:36
최종코드
var http = require('http');
var fs = require('fs');
var url = require('url');
function templateHTML(title, list, body){
return `
<!doctype html>
<html>
<head>
<title>WEB1 - ${title}</title>
<meta charset="utf-8">
</head>
<body>
<h1><a href="/">WEB</a></h1>
${list}
${body}
</body>
</html>
`;
}
function templateList(filelist){
var list = '<ul>';
var i = 0;
while(i < filelist.length){
list += `<li><a href="/?id=${filelist[i]}">${filelist[i]}</a></li>`
i += 1;
}
list = list + '</ul>';
return list;
}
var app = http.createServer(function(request,response){
var _url = request.url;
var queryData = url.parse(_url, true).query;
var pathname = url.parse(_url, true).pathname;
if(pathname === '/'){
if(queryData.id === undefined){
fs.readdir('./data', function(err, filelist){
var title = 'Welcome';
var description = 'Hello Node.js';
var list = templateList(filelist);
var template = templateHTML(title, list, `<h2>${title}</h2><p>${description}</p>`);
response.writeHead(200);
response.end(template);
})
} else{
fs.readdir('./data', function(err, filelist){
fs.readFile(`data/${queryData.id}`, 'utf8', function(err, description){
var title = queryData.id;
var template = templateHTML(title, list, `<h2>${title}</h2><p>${description}</p>`);
var list = templateList(filelist);
response.writeHead(200);
response.end(template);
});
});
}
} else{
response.writeHead(404);
response.end('Not found');
}
});
app.listen(3000);
이걸 또 중복 제거(if 문부터)
if (pathname === '/') {
fs.readdir('./data', (err, fileList) => {
var list = templateList(fileList);
fs.readFile(`data/${queryData.id}`, 'utf8', (err, data) => {
if (queryData.id === undefined) {
var title = "welcome";
var description = "hello node.js";
} else {
var title = queryData.id;
var description = data;
}
var body = `<h2>${title}</h2>${description}`;
var template = templateHTML(title, list, body);
response.writeHead(200);
response.end(template);
});
});
}