yanglei99/acmeair-nodejs

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yanglei99/acmeair-nodejs repository overview

⁠Acme Air in NodeJS

An implementation of the Acme Air benchmark application for NodeJS. This implementation can support multiple datastores; run in several application modes; offer oeration insights and API management capabilities. It also supports running on a variety of runtime platforms including stand-alone bare-metal system, Virtual Machines, docker containers, IBM Bluemix, IBM Bluemix Container Service, Mesos through Marathon...

⁠Content

⁠Runtime Environment

NodeJs⁠

⁠Datastore Choices

Environment variable dbtype is used to determine the datastore choice. MongoDB is default. See under "More on configurations".

⁠Application Mode

Environment variable AUTH_SERVICE is use to determine when Micro-Service is used. Default is Monolitic. See under "More on configurations".

⁠Monolithic

One NodeJS application. The default mode.

⁠Micro-Service

Main NodeJS application delegates to authorization service NodeJS application hosted on host:port, defined in AUTH_SERVICE.

⁠Application Run Platforms

⁠Insights and API Management

Enable zipkin tracing with ENABLE_ZIPKIN
Enable Swagger API exploring with ENABLE_SWAGGER

⁠How to get started

Assume MongoDB started on 127.0.0.1:27017

⁠Resolve module dependencies

npm install

⁠Run Acmeair in Monolithic on Local

node app.js

⁠Run Acmeair in Micro-Service on Local

node authservice_app.js
set AUTH_SERVICE=localhost:9443 or export AUTH_SERVICE=localhost:9443
node app.js

⁠Run Acmeair in Micro-Service with Netflix Hystrix Stream enabled on Local

node authservice_app.js
set AUTH_SERVICE=localhost:9443 or export AUTH_SERVICE=localhost:9443
set enableHystrix=true or export enableHystrix=true

node app.js

⁠Enable ZipKin tracing for all the scenarios

export ENABLE_ZIPKIN=true
export ZIPKIN_HOST= your Zipkin collector host

⁠Known issue

If you hit ipv6 issue⁠, you can work around it by clone the branch to replace your local node-modules

⁠Enable Swagger API definition for all the scenarios

export ENABLE_SWAGGER=true

The Swagger API definition shown as default⁠. The Swagger API definition for Authentication Service⁠
The swagger-ui is at http://host:port/v1⁠

⁠Known issue

The Swagger API needs improvements. Especially on how to model sessionid in cookies.

⁠Access Application

http://localhost:9080/

Load the database (under Configure the Acme Air environment)
	preload 10k customers uid[0..9999]@email.com:password, 5 days' flights.  Defined in loader/loader-settings.json
Login
Flights
	such as Singapore to HongKong or Paris to Moscow 
Checkin
	cancel some booked flights
Account
	update account info
Logout	

If hystrix is enabled, it is available at : http://localhost:9080/rest/api/hystrix.stream

⁠More on Configurations

⁠Environment Variables

Name	Default	Meaning
dbtype	mongo	You can switch between mongo,cloudant,cassandra for datastore choices. When running on Bluemix, dbtype is automactially discovered from the service the application is bound to.
AUTH_SERVICE		By default, there is only one main NodeJS application for all logics. When defined, in the format of host:port, it enables Micro-Service mode, main NodeJS application delegates to authorization service NodeJS application hosted on host:port.
enableHystrix	false	when set to true, it will enable hystrix stream available at /rest/api/hystrix.stream
MONGO_URL		Mongo database URL. Take precedence over other settings
CLOUDANT_URL		Cloudant database URL. Take precedence over other settings
CASSANDRA_CP		Cassandra Contact Points. Take precedence over other settings
CASSANDRA_KS		Cassandra keyspace. Take precedence over other settings
ENABLE_ZIPKIN		when set to true, it will enable ZipKin integration
ZIPKIN_HOST		zipkin collector scribe host. Take precedence over other settings
ZIPKIN_PORT		zipkin collector scribe port. Take precedence over other settings
ENABLE_SWAGGER		when set to true, it will enable Swagger API exploring. The swagger-ui is at host:port/v1

⁠Configuration for Runtime

Default values are defined here⁠

Name	Default	Meaning
mongoHost	127.0.0.1	MongoDB host ip
mongoPort	27017	MongoDB port
mongoConnectionPoolSize	10	MongoDB connection pool size
cloudant_host		Cloudant database host name
cloudant_port	443	Cloudant database port
cloudant_username		Cloudant database username/API key
cloudant_password		Cloudant database password
cloudant_httpclient.maxTotal	200	Cloudant http client max connections
cloudant_httpclient.maxPerRoute	100	Cloudant http client connections per route
cloudant_httpclient.soTimeout	5000	Cloudant http client socket timeout
cloudant_httpclient.connectionTimeout	5000	Cloudant http client connection timeout
cassandra_contactPoints		Cassandra contact points
cassandra_keyspace	acmeair_keyspace	Cassandra keyspace
zipkin_host	127.0.0.1	zipkin collector scribe host
zipkin_port	9410	zipkin collector scribe port

When running on Bluemix, datasource url will be read from bound service information.
For Cloudant, you need to follow instruction⁠ to create database and define search index.
For Cassandra, you need to follow instruction⁠ to create keyspace and tables.

⁠Configuration for Preload

Default values are defined here⁠

Name	Default	Meaning
MAX_CUSTOMERS	10000	number of customers
MAX_DAYS_TO_SCHEDULE_FLIGHTS	5	max number of days to schedule flights
MAX_FLIGHTS_PER_DAY	1	max flights per day

⁠Other Topics

⁠How to extend with more datasource types

Create a folder under dataaccess with the new dbtype name. Look at current implementation for reference.

⁠Data consistency with Acmeair Java

The data format is NOT the same as Acmeair Java. The impact:

You can not share database with Acmeair Java.
When drive acmeair workload, you need follow the instruction⁠ to use -DusePureIDs=true when starting jmeter.

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