MongoDB-users

MongoDB users - code challenge

Requirement:

MongoDB 3.0

Techoligies:

mongo-java-driver: Java library for MongoDB. jersey-container-jdk-http: framework provides standard ways for building RESTful web services httpserver allows to build http server in runnable jar file

Start in command line:

java -cp MongoUsers.jar org.mongousers.UserServer [parameter:value] [parameter:value]...

List of parameters and default values:

	host -           host URL, default http://localhost/.
	port - 	         port, default 9998.
	dbhost -         host of MongoDB, default http://localhost.
	dbport -         port of MongoDB, default 27017.
	dbuser -         MongoDB user name.
	dbpassword -     MongoDB user password.
	dbname -         MongoDB database name, default "test".
	dbcollection -	 MongoDB collection, default "users".

Example: start application locally on port 9997 with MongoDB is running locally on port 27018, using db "test" and collection "users":

java -cp MongoUsers.jar org.mongousers.UserServer -port:9997 -dbport:27018 dbname:test dbcollection:users

JUnit tests:

java -cp MongoUsersTests.jar tests.testMain [host:][port:]

import users.json to MongoDB using mongoimport, where db and collection will be used in parameters of server:

mongoimport /db:test /collection:users < users.json

Start MongoUsers:

java -cp MongoUsers.jar org.mongousers.UserServer -dbname:test -dbcollection:users

Run JUnit tests:

java -cp MongoUsersTests.jar tests.testMain

Versioning.

Versioning of endpoints are hendled with JAX-RS annotation @Consumes:

@Consumes({MediaType.APPLICATION_JSON,"application/mongo-users-v1+json"})

Client sends a version in http header: connection.setRequestProperty("Content-Type", "application/mongo-users-v1+json; charset=UTF-8");

Server returns HTTP error 415, if server version and client version are different.

JUnit test testFiles() sends wrong version to server and fails, if server does not return an error.

EndPoints:

User Login: POST UserService/login

Payload example: {"userid":"test","password":"test123!"}

Response: {"error":"yes"|"no"}

Get users: GET UserService/users Query params: page_size - max number of results page_number - current page number groupby - group field filter - query condition

Sample: UserService/users?page_number=3&page_size=50&groupby=address.zipcode&filter={"fistname":"John","profession":"engineer"}

Response: { "last":"yes", "result":[{_id:94063,...}] }

Status: GET UserService/status

Response: {"error":"yes"|"no"}

Files: GET UserService/files{dir}

Response example: [{"db":"directory"},{"readme.txt":"file"}...]