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https://github.com/umermansoor/microservices

Example of Microservices written using Flask.
https://github.com/umermansoor/microservices

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Example of Microservices written using Flask.

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# Cinema 3 - (Extremely Simplified) Example of Microservices in Python

Overview
========

Cinema 3 is an example project which demonstrates the use of microservices for a fictional movie theater.
The Cinema 3 backend is powered by 4 microservices, all of which happen to be written in Python using
Flask. For more information, you can refer to the blog post here: https://codeahoy.com/2016/07/10/writing-microservices-in-python-using-flask/

* Movie Service: Provides information like movie ratings, title, etc.
* Show Times Service: Provides show times information.
* Booking Service: Provides booking information.
* Users Service: Provides movie suggestions for users by communicating with other services.

Requirements
===========

* Python 2.7
* Works on Linux, Windows, Mac OSX and (quite possibly) BSD.

Install
=======

The quick way is use the provided `make` file.


$ make install

Starting and Stopping Services
==============================

To launch the services:


$ make launch

To stop the services:


$ make shutdown

APIs and Documentation
======================

## Movie Service (port 5001)

This service is used to get information about a movie. It provides the movie title, rating on a 1-10 scale,
director and other information.

To lookup all movies in the database, hit: `http://127.0.0.1:5001/movies`

GET /movies
Returns a list of all movies.

{
"267eedb8-0f5d-42d5-8f43-72426b9fb3e6": {
"director": "Ryan Coogler",
"id": "267eedb8-0f5d-42d5-8f43-72426b9fb3e6",
"rating": 8.8,
"title": "Creed"
},
...... output truncated ......

To lookup a movie by its `id`:

GET /movies/7daf7208-be4d-4944-a3ae-c1c2f516f3e6
Returns the specified movie.

{
"director": "Paul McGuigan",
"id": "7daf7208-be4d-4944-a3ae-c1c2f516f3e6",
"rating": 6.4,
"title": "Victor Frankenstein",
"uri": "/movies/7daf7208-be4d-4944-a3ae-c1c2f516f3e6"
}

## Showtimes Service (port 5002)

This service is used get a list of movies playing on a certain date.

To lookup all showtimes, hit: `http://127.0.0.1:5002/showtimes`

GET /showtimes
Returns a list of all showtimes by date.

{
"20151130": [
"720d006c-3a57-4b6a-b18f-9b713b073f3c",
"a8034f44-aee4-44cf-b32c-74cf452aaaae",
"39ab85e5-5e8e-4dc5-afea-65dc368bd7ab"
],
...... output truncated ......

To get movies playing on a certain date:

GET /showtimes/20151201
Returns all movies playing on the date.

[
"267eedb8-0f5d-42d5-8f43-72426b9fb3e6",
"7daf7208-be4d-4944-a3ae-c1c2f516f3e6",
"39ab85e5-5e8e-4dc5-afea-65dc368bd7ab",
"a8034f44-aee4-44cf-b32c-74cf452aaaae"
]

## Booking Service (port 5003)

Used to lookup booking information for users.

To get all bookings by all users in the system, hit: `http://127.0.0.1:5003/bookings`

GET /bookings
Returns a list of booking information for all bookings in the database.

{
"chris_rivers": {
"20151201": [
"267eedb8-0f5d-42d5-8f43-72426b9fb3e6"
]
},
...... output truncated ......

To lookup booking information for a user:

GET /bookings/dwight_schrute

{
"20151201": [
"7daf7208-be4d-4944-a3ae-c1c2f516f3e6",
"267eedb8-0f5d-42d5-8f43-72426b9fb3e6"
],
"20151205": [
"a8034f44-aee4-44cf-b32c-74cf452aaaae",
"276c79ec-a26a-40a6-b3d3-fb242a5947b6"
]
}

## User Service (port 5000)

This service returns information about the users of Cinema 3 and also provides movie suggestions to the
users. It communicates with other services to retrieve booking or movie information.

To get a list of all the users in the system, hit: `http://127.0.0.1:5000/users`

GET /users
Returns a list of all users in the database.

{
"chris_rivers": {
"id": "chris_rivers",
"last_active": 1360031010,
"name": "Chris Rivers"
},
...... output truncated ......

To lookup information about a user:

GET /users/michael_scott
{
"id": "michael_scott",
"last_active": 1360031625,
"name": "Michael Scott"
}

To get suggested movies for a user:

GET /users/michael_scott/suggested