수업소개
에러가 발생했을 때 처리하는 방법을 소개합니다.
강의
소스코드
main.js
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 | var express = require('express')var app = express()var fs = require('fs');var path = require('path');var qs = require('querystring');var bodyParser = require('body-parser');var sanitizeHtml = require('sanitize-html');var compression = require('compression')var template = require('./lib/template.js');app.use(express.static('public'));app.use(bodyParser.urlencoded({ extended: false }));app.use(compression());app.get('*', function(request, response, next){ fs.readdir('./data', function(error, filelist){ request.list = filelist; next(); });});//route, routing//app.get('/', (req, res) => res.send('Hello World!'))app.get('/', function(request, response) { var title = 'Welcome'; var description = 'Hello, Node.js'; var list = template.list(request.list); var html = template.HTML(title, list, ` <h2>${title}</h2>${description} <img src="/images/hello.jpg" style="width:300px; display:block; margin-top:10px;"> `, `<a href="/create">create</a>` ); response.send(html);});app.get('/page/:pageId', function(request, response, next) { var filteredId = path.parse(request.params.pageId).base; fs.readFile(`data/${filteredId}`, 'utf8', function(err, description){ if(err){ next(err); } else { var title = request.params.pageId; var sanitizedTitle = sanitizeHtml(title); var sanitizedDescription = sanitizeHtml(description, { allowedTags:['h1'] }); var list = template.list(request.list); var html = template.HTML(sanitizedTitle, list, `<h2>${sanitizedTitle}</h2>${sanitizedDescription}`, ` <a href="/create">create</a> <a href="/update/${sanitizedTitle}">update</a> <form action="/delete_process" method="post"> <input type="hidden" name="id" value="${sanitizedTitle}"> <input type="submit" value="delete"> </form>` ); response.send(html); } });});app.get('/create', function(request, response){ var title = 'WEB - create'; var list = template.list(request.list); var html = template.HTML(title, list, ` <form action="/create_process" method="post"> <p><input type="text" name="title" placeholder="title"></p> <p> <textarea name="description" placeholder="description"></textarea> </p> <p> <input type="submit"> </p> </form> `, ''); response.send(html);});app.post('/create_process', function(request, response){ var post = request.body; var title = post.title; var description = post.description; fs.writeFile(`data/${title}`, description, 'utf8', function(err){ response.writeHead(302, {Location: `/?id=${title}`}); response.end(); });});app.get('/update/:pageId', function(request, response){ var filteredId = path.parse(request.params.pageId).base; fs.readFile(`data/${filteredId}`, 'utf8', function(err, description){ var title = request.params.pageId; var list = template.list(filelist); var html = template.HTML(title, list, ` <form action="/update_process" method="post"> <input type="hidden" name="id" value="${title}"> <p><input type="text" name="title" placeholder="title" value="${title}"></p> <p> <textarea name="description" placeholder="description">${description}</textarea> </p> <p> <input type="submit"> </p> </form> `, `<a href="/create">create</a> <a href="/update?id=${title}">update</a>` ); response.send(html); });});app.post('/update_process', function(request, response){ var post = request.body; var id = post.id; var title = post.title; var description = post.description; fs.rename(`data/${id}`, `data/${title}`, function(error){ fs.writeFile(`data/${title}`, description, 'utf8', function(err){ response.redirect(`/?id=${title}`); }) });});app.post('/delete_process', function(request, response){ var post = request.body; var id = post.id; var filteredId = path.parse(id).base; fs.unlink(`data/${filteredId}`, function(error){ response.redirect('/'); });});app.use(function(req, res, next) { res.status(404).send('Sorry cant find that!');});app.use(function (err, req, res, next) { console.error(err.stack) res.status(500).send('Something broke!')});app.listen(3000, function() { console.log('Example app listening on port 3000!')}); |
