Python Cornice Library Introduction (Python Cornice Library Beginner's Guide)

Python Cornice is a library for building and release of RESTFUL services.It is part of the Pyramid framework and provides a simple and easy -to -use method to create RESTFUL API. Before using Python Cornice, you first need to install the Python and Cornice libraries.You can use the following commands to install Cornice: pip install cornice After the installation is completed, we can start using Cornice to build a restful service.The following is a simple example: python from pyramid.config import Configurator from cornice import Service # Create a new service hello_service = Service(name='hello', path='/hello', description='Hello World Service', cors_origins=('*',)) # Configuration service GET request @hello_service.get() def get_hello(request): return {'message': 'Hello, World!'} if __name__ == '__main__': config = Configurator() # Add the service to the configuration config.include("cornice") config.scan() app = config.make_wsgi_app() # serve(app, host='0.0.0.0', port=8080) In the above example, we first import the required modules and classes.Then, we use the `Service ()` function to create a new service and provide it with a name, path, and description.In addition, we also use the `CORS_ORIGINS` parameter to configure the service cross -domain resource sharing (CORS). Next, we use the `@hello_service.get ()` decorator to define the service GET request processing method.In this example, we simply return a JSON response containing "Hello, World!". Finally, in the `__name__ == '__main __'` part, we created a configuration object and added the Cornice to the configuration through the `Include ()" method.Then, we use the `Scan ()` method to scan our services, and use the method of `Make_wsgi_app ()` to create a WSGI application object.Finally, we start the application on the local port 8080 through the `Serve ()` function. Through the above configuration, we can access the `http:// localhost: 8080/Hello`, and we will see a JSON response containing" Hello, World! ". All in all, Python Cornice is a very convenient library that makes it simple to build and release the RESTFUL service.Through simple configuration and use examples, we can quickly get started and build a powerful RESTFUL API.