Add sample node.js/express server

.gitignore

+node_modules/
+config.json
\ No newline at end of file

README.md

-Ce projet est le générateur de slogan et d'image utilisé par LQDN pour la campagne de dons 2017-2018.
+# Slogans generator
\ No newline at end of file
+
+This project is the slogan generator used by LQDN for the donation compaign of years 2017-2018.
+
+## Installation
+
+The back-end server require node.js, npm and cairo. Here is the installation command for debian based systems:
+
+```sh
+apt install nodejs libcairo2-dev libjpeg62-turbo-dev libpango1.0-dev libgif-dev build-essential g++
+```
+
+```sh
+cp config.json.default config.json
+npm install
+```
+
+## Run
+
+```sh
+npm run
+```

config.json.default

+{
+  "port": "3000"
+}

npm-debug.log

+0 info it worked if it ends with ok
+1 verbose cli [ '/usr/bin/node', '/usr/bin/npm', 'start' ]
+2 info using npm@3.10.10
+3 info using node@v6.11.3
+4 verbose run-script [ 'prestart', 'start', 'poststart' ]
+5 info lifecycle generateur-slogans@1.0.0~prestart: generateur-slogans@1.0.0
+6 silly lifecycle generateur-slogans@1.0.0~prestart: no script for prestart, continuing
+7 info lifecycle generateur-slogans@1.0.0~start: generateur-slogans@1.0.0
+8 verbose lifecycle generateur-slogans@1.0.0~start: unsafe-perm in lifecycle true
+9 verbose lifecycle generateur-slogans@1.0.0~start: PATH: /usr/lib/node_modules/npm/bin/node-gyp-bin:/home/emeraude/projects/generateur-slogans/node_modules/.bin:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games
+10 verbose lifecycle generateur-slogans@1.0.0~start: CWD: /home/emeraude/projects/generateur-slogans
+11 silly lifecycle generateur-slogans@1.0.0~start: Args: [ '-c', 'srv.js' ]
+12 info lifecycle generateur-slogans@1.0.0~start: Failed to exec start script
+13 verbose stack Error: generateur-slogans@1.0.0 start: `srv.js`
+13 verbose stack spawn ENOENT
+13 verbose stack     at ChildProcess.<anonymous> (/usr/lib/node_modules/npm/lib/utils/spawn.js:33:16)
+13 verbose stack     at emitTwo (events.js:106:13)
+13 verbose stack     at ChildProcess.emit (events.js:191:7)
+13 verbose stack     at maybeClose (internal/child_process.js:920:16)
+13 verbose stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:230:5)
+14 verbose pkgid generateur-slogans@1.0.0
+15 verbose cwd /home/emeraude/projects/generateur-slogans
+16 error Linux 4.9.0-3-amd64
+17 error argv "/usr/bin/node" "/usr/bin/npm" "start"
+18 error node v6.11.3
+19 error npm  v3.10.10
+20 error file sh
+21 error code ELIFECYCLE
+22 error errno ENOENT
+23 error syscall spawn
+24 error generateur-slogans@1.0.0 start: `srv.js`
+24 error spawn ENOENT
+25 error Failed at the generateur-slogans@1.0.0 start script 'srv.js'.
+25 error Make sure you have the latest version of node.js and npm installed.
+25 error If you do, this is most likely a problem with the generateur-slogans package,
+25 error not with npm itself.
+25 error Tell the author that this fails on your system:
+25 error     srv.js
+25 error You can get information on how to open an issue for this project with:
+25 error     npm bugs generateur-slogans
+25 error Or if that isn't available, you can get their info via:
+25 error     npm owner ls generateur-slogans
+25 error There is likely additional logging output above.
+26 verbose exit [ 1, true ]

package.json

+{
+  "name": "generateur-slogans",
+  "version": "1.0.0",
+  "description": "Ce projet est le générateur de slogan et d'image utilisé par LQDN pour la campagne de dons 2017-2018.",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "start": "./srv.js"
+  },
+  "repository": {
+    "type": "git",
+    "url": "gitlab@git.laquadrature.net:lqdn-interne/generateur-slogans.git"
+  },
+  "license": "GPL-3.0",
+  "dependencies": {
+    "canvas": "^1.6.7",
+    "express": "^4.16.1"
+  }
+}

srv.js

+#!/usr/bin/env node
+
+const express = require('express');
+const app = express();
+const config = require('./config.json');
+
+app.get('/generate', function (req, res) {
+  res.send('Hello World!');
+})
+
+app.listen(process.env.PORT || config.port || 80, function () {
+  console.log('Example app listening on port ' + config.port);
+})