Introduction to hapi

Slides from Javascript-Meetup (01. Sep 2014) in Stuttgart

Transcript

1. Introduc)on*to*hapi @wakayamakentaro
2. A"rich"framework"for"building" applica5ons"and"services —"hapi
3. Stats Current'version:'v6.7.1 Downloads'last'month:'40,819
4. Ge#ng&Started var hapi = require('hapi'), server = new hapi.Server('localhost', 8000); server.start(function() { console.log('hapi server started @ ' + server.info.uri); });
5. Rou$ng server.route({ method: 'GET', path: '/hello/{name*2}', handler: function(request, reply) { reply('hello ' + request.params.name + '. Nice to see you!'); } });
6. Caching server.method('getProfile', function(id, next) { next(null, { 'id': id, 'timestamp': new Date }); }, { cache: { expiresIn: 10000 } }); server.route({ method: 'GET', path: '/profile/{id}', handler: function(request, reply) { server.methods.getProfile(request.params.id, reply); } });
7. Valida&on)with)Joi server.route({ method: 'GET', path: '/hello/{name}', handler: function(request, reply) { reply('hello ' + request.params.name + '. Nice to see you!'); }, config: { validate: { params: { name: joi.string().required().min(3).max(10) } } } });
8. Plugins()(Modular(Concept var hapi = require('hapi'); hapiSwagger = require('hapi-swagger'); var server = new hapi.Server('localhost', 8000); server.pack.register(hapiSwagger, function(err) { if (err) throw err; server.start(function() { console.log('hapi server started @ ' + server.info.uri); }); });
9. Plugins()(Basic(structure exports.register = function (plugin, options, next) { plugin.route({ method: 'GET', path: '/stuttgartjs', handler: function (request, reply) { reply('pizza and beer!'); } }); next(); }; exports.register.attributes = { pkg: require('./package.json'); };
10. Tes$ng var assert = require('assert'), hapi = require('hapi'), plugin = require('../'); describe('Test Plugin', function() { var server; beforeEach(function(){ server = new hapi.Server(); }); it('loads successfully', function(done) { server.pack.register(plugin, function(err) { assert.ok(!err); done(); }); }); it('responses to GET request on /', function(done) { var request = { method: 'GET', url: '/' }; server.pack.register(plugin, function(err) { server.inject(request, function(res) { assert.equal(res.statusCode, 200); assert.equal(res.result, 'don\'t worry, be hapi!'); done(); }); }); }); });
11. Live%Coding%+%Create%a%hapi%plugin Steps: 1. Listens)to)a)sum$route. 2. Accepts)two$parameters 3. Has)valida0on 4. Is)tested Use$generator+hapi+plugin npm i -g generator-hapi-plugin
12. Composer var manifest = { servers: [ { port: 8080 }, { port: 8081 } ], plugins: { "hapi-swagger": {} "./plugins/example": { endPoint: "/my/custom/route" } } }; hapi.Pack.compose(manifest, function(err, pack) { pack.start(function() { console.log('Servers started'); }); });
13. Composer(commandline manifest.json,+,package.json { "servers": [{ "port": 8080 }, { "port": 8081 }], "plugins": { "hapi-swagger": {}, "stuttgartjs": {} } } Use$hapi$globally hapi -c manifest.json
14. QA @wakayamakentaro