flasgger 0.2.8

Extract swagger specs from your flask project

# flasgger
A Swagger 2.0 spec extractor for Flask

Install:
```
pip install flasgger
```

> Take a look at examples/example.py

flasgger provides a method (swagger) that inspects the Flask app for endpoints that contain YAML docstrings with Swagger 2.0 [Operation](https://github.com/swagger-api/swagger-spec/blob/master/versions/2.0.md#operation-object) objects.

```
class UserAPI(MethodView):

def post(self):
"""
Create a new user
---
tags:
- users
parameters:
- in: body
name: body
schema:
id: User
required:
- email
- name
properties:
email:
type: string
description: email for user
name:
type: string
description: name for user
address:
description: address for user
schema:
id: Address
properties:
street:
type: string
state:
type: string
country:
type: string
postalcode:
type: string
responses:
201:
description: User created
"""
return {}
```
flasgger supports docstrings in methods of MethodView classes (ala [Flask-RESTful](https://github.com/flask-restful/flask-restful)) and regular Flask view functions.

Following YAML conventions, flasgger searches for `---`, everything preceding is provided as `summary` (first line) and `description` (following lines) for the endpoint while everything after is parsed as a swagger [Operation](https://github.com/swagger-api/swagger-spec/blob/master/versions/2.0.md#operation-object) object.

In order to support inline definition of [Schema ](https://github.com/swagger-api/swagger-spec/blob/master/versions/2.0.md#schemaObject) objects in [Parameter](https://github.com/swagger-api/swagger-spec/blob/master/versions/2.0.md#parameterObject) and [Response](https://github.com/swagger-api/swagger-spec/blob/master/versions/2.0.md#responsesObject) objects, flasgger veers a little off from the standard. We require an `id` field for the inline Schema which is then used to correctly place the [Schema](https://github.com/swagger-api/swagger-spec/blob/master/versions/2.0.md#schemaObject) object in the [Definitions](https://github.com/swagger-api/swagger-spec/blob/master/versions/2.0.md#definitionsObject) object.

[Schema ](https://github.com/swagger-api/swagger-spec/blob/master/versions/2.0.md#schemaObject) objects can also be defined within the properties of other [Schema ](https://github.com/swagger-api/swagger-spec/blob/master/versions/2.0.md#schemaObject) objects . An example is shown above with the address property of User.

To expose your Swagger specification to the world you provide a Flask route that does something along these lines

```
from flask import Flask, jsonify
from flasgger import Swagger

app = Flask(__name__)

app.config['SWAGGER'] = {
"version": "0.0.1",
"title": "Example site title",
"specs": [
{
"endpoint": 'v1_spec',
"route": '/v1/spec',
"rule_filter": lambda rule: True
},
]
}

# you can pass many specs registers and use rule_filter to
# separate versions

swagger = Swagger() # you can pass config here if prefered

# register your views and blueprints and then

swagger.init_app(app)


if __name__ == "__main__":
app.run(debug=True)

```

If you need to add some aditional info
```
app.config['SWAGGER'] = {
"version": "0.0.1",
"title": "Example site title",
"specs": [
{
"endpoint": 'v1_spec',
"route": '/v1/spec',
"rule_filter": lambda rule: True
"extra_data": {
"info": {"version": "0.1.2"},
"foo": "bar"
}
},
]
}
```


[Swagger-UI](https://github.com/swagger-api/swagger-ui)

Swagger-UI is the reason we embarked on this mission to begin with, flasgger does not however include Swagger-UI. Simply follow the awesome documentation over at https://github.com/swagger-api/swagger-ui and point your [swaggerUi.url](https://github.com/swagger-api/swagger-ui#swaggerui) to your new flasgger endpoint and enjoy.


Acknowledgments

Flasgger is a fork of Flask-Swagger that builds on ideas and code from [flask-sillywalk](https://github.com/hobbeswalsh/flask-sillywalk) and [flask-restful-swagger](https://github.com/rantav/flask-restful-swagger)