Update README.md

Author: Waffles32

README.md

@@ -1 +1,161 @@
-# madness
+# madness
+
+
+use methods for your madness
+
+## Application
+
+```python
+from madness import Madness
+
+app = Madness()
+
+# add routes/context here
+
+if __name__ == '__main__':
+  app.run()
+```
+
+
+## Routing
+
+### Decorators
+
+`@route`          
+
+option | description
+------------ | -------------
+`*paths` | relative paths
+`methods` | list of allowed http methods
+`context` | list of extra context functions
+
+#### Single-Method
+
+`@get, @post, @put, @delete, @patch, @options`
+
+#### RESTful
+
+decorator | path | methods
+------------ | ------------- | -------------
+`@index` | {path} | GET
+`@new` | new{path} | GET
+`@create` | | POST
+`@show` | /<int:id>{path} | GET
+`@edit` | /<int:id>/edit{path} | GET
+`@update` | /<int:id>{path} | PUT
+`@destroy` | /<int:id>{path} | DELETE
+
+#### AWS
+
+`@lambda_handler`
+
+[usage](https://github.com/Waffles32/madness/blob/development/examples/api-gateway.py)
+
+#### CORS
+
+if 'OPTIONS' is present in methods the following options are used
+
+option | description
+------------ | -------------
+`origin` | allowed origin: \* or list of urls
+`headers` | allowed request headers: list of header names
+
+
+### Modules
+
+```python
+
+app = Madness()
+
+module = Madness()
+
+@module.route
+def thing():
+  return response(['hello!'])
+
+app.extend(module) # now app has /thing
+
+app.extend(module, 'prefix') # now app has /prefix/thing
+
+app.extend(module, context:bool=True) # choose if module inherits entire app.context
+
+```
+
+
+## Context
+
+rules are added to context e.g. /path/<myvar> creates context.myvar
+
+
+```python
+
+
+from madness import context, request, json
+
+@app.context
+def before_request():
+    # add a variable to the context
+    context.x = 1
+
+@app.context
+def uses_x(x):
+    print('a previous context defined', x)
+
+
+@app.context
+def around_request():
+    # before_request
+    try:
+      yield
+    finally:
+      # after_request
+      pass
+
+
+@app.context
+def handle_exception():
+  try:
+    response = yield
+  except MyException as exception:
+    # MyException error occured while generating the response
+
+    # we can do one of 3 things with it:
+
+    # ignore the exception, continue processing the request
+    pass
+
+    # re-raise the exception to the parent context
+    raise
+
+    # convert the exception to a response
+    yield json.response({'foo': exception.bar})
+
+
+@app.context
+def filter_request():
+  # abort the request before the route, route is never called
+  if request.headers['x-header'] != 'some-value':
+    yield json.response('aborted')
+
+
+@app.context
+def jwt():
+    encoded = request.headers['x-jwt']
+    data = jwt.decode(encoded)
+    context.username = data['username']
+    try:
+      yield
+    else:
+      response.headers['x-jwt'] = jwt.encode({
+        'username': context.username
+      })
+
+
+@app.route
+def test(x, username):
+    print('x is', 1)
+    print('jwt is', username)
+    return response(['body'])
+
+
+```