Implement Routing and Controllers

[travisoneill]

DO NOT MERGE YET

Implements routes and controllers for servers with eos g service. Basic REST functionality up for Express. Generation command working.

FUNCTIONALITY:
Adds a default routes.js and controller.js file to the service folder on running eos g service express [name]. Users can easily map routes and REST verbs directly to controller actions simply by adding the route to /<server>/routes.js and writing the corresponding method in /<server>/controller.js

// /servername/routes.js
const GET = {
  '/': 'root',
  '/example': 'getExample'
  //<route>: <controller action>
};

const POST = {
  '/example': 'postExample'
  //<route>: <controller action>
};

// /servername/controller.js

  root(){
    return 'This is the Root';
  }

   getExample(){
   //do stuff...
    return <Example  GET Response>;
  }

  root(){
    //do stuff...
    return <Example  POST Response>;
  }

TODO:

1. Implement nested routes
2. Implement URL params
3. Handle POST request data
4. Configure static file functionality for default server on eos g service
5. Implement all of the above for Flask

[travisoneill]

Implemented routes for Flask.

FUNCTIONALITY:
Adds a default routes.py and controller.py file to the service folder on running eos g service flask [name]. Users can easily map routes and REST verbs directly to controller actions simply by adding the route to //routes.py and writing the corresponding method in //controller.py.

#/<name>/routes.py
from collections import defaultdict
GET = defaultdict(lambda: None)
POST = defaultdict(lambda: None)
PATCH_PUT = defaultdict(lambda: None)
DELETE = defaultdict(lambda: None)

GET['/'] = 'root'
GET['/test'] = 'test'

# To add routes:
# <METHOD>[<route>] = <controller action>

#/<name>/controller.py
def root():
    return 'ROOT'


def error(code):
    errors = {
        404: 'Route Not Found'
    }
    text = errors[code]
    return 'ERROR:  ' + str(code) + '  ' + text

TODO:

1. Implement nested routes
2. Implement URL params
3. Handle POST request data
4. Configure static file functionality for default server on eos g service

[travisoneill]

Nested routes and params now working for Flask and Express. Express route matching handled by module in /utils/routing.js. Flask routing handled by pip package eos_python_utils installed by the config script. Currently at https://github.com/travisoneill/python-utils-eos-redux.

TODO:

1. Handle POST request data
2. Configure static file functionality for default server on eos g service