anywhr-backend

Find your travel destinations, from famous movie spot

Documentation Coverage for frontend

http://3.1.20.178:3000/documentation

Entry point

app.js is the entry point of the application, however when running in production run bin/www

Features

Implemented real time search functionality using rxjs's debounce, distinct until changed operator on angular form's input element, which exposes an event that is fired everytime value of input box changes

Movie Location and definition from wiki pages On clicking any one of the locations, the app will look for that title on wikipedia and populate results on the grey area

Pagination implementation in angular

Example http://3.1.20.178:3000/movie?title=180

Running locally

git clone https://github.com/shanurrahman/anywhr-backend.git cd anywhr-backend npm install browse localhost:3000

To improve upon the frontend

cd .. git clone https://github.com/shanurrahman/anywhr-frontend.git npm run compodoc ng build --prod

Now run your backend server cd ../anywhr-backend && npm start goto : localhost:3000

Note:

For this process to run both anywhr-frontend and backend should be in the same folder

Using Docker

From the root directory docker build --tag="anywhr:anywhr" ./ docker image ls => find the id of your image and do a docker run -d --restart=always -p 3000:3000 image_name:version In our case it is going to be docker run -d --restart=always -p 3000:3000 <image_id> goto localhost:3000

you can also use the image id if tag was not created

Building an image from dockerfile

Running docker container from that image

Production build instructions

update the .env file, your db credentials, put NODE_ENV=development to enable full logging

You may use this docker image inside a docker stack and use it with production but that will require
docker and docker compose installation first, for an app of this size I would not actually recommend
going with that approach, Here I am using pm2 and pm2-logrotate for the same purpose

npm install

Install pm2 globally

$ pm2 stop     <app_name|namespace|id|'all'|json_conf>
$ pm2 restart  <app_name|namespace|id|'all'|json_conf>
$ pm2 delete   <app_name|namespace|id|'all'|json_conf>

$ sudo pm2 start bin/www

Install pm2 logrotate, prevents memory leak issues on the server

pm2 install pm2-logrotate

Notes to the reviewer [Handling memory leaks in postgres]

For one line postgres statements that dont require a transaction block we can simply use pg pools that way we dont have to deal with closing the database queries More on it here https://node-postgres.com/api/pool

Database tables

create table movie
(
	title varchar(256) not null
		constraint movie_pkey
			primary key,
	release_year varchar(128),
	fun_facts varchar(339),
	production_company varchar(256) default 'N/A'::character varying,
	distributor varchar(256),
	director varchar(79),
	writer varchar(49),
	actor_1 varchar,
	actor_2 varchar,
	actor_3 varchar
);

create table movie_location
(
	title varchar(45) not null,
	locations varchar(110)
);

codebanesr / anywhr-backend