If we want to use any other HTTP verbs, we have to specify them by passing them via the methods parameter as a list. We created two functions booksFunction and bookFunctionId id. Otherwise, it will return the makeANewBook method. The makeANewBook function takes in three parameters. These are the values we need to create a row in our database table. The GET request in our first function returns all the books in our database, while the GET request in our second function only returns the filtered book.
Data serialization converts the structured data to a format that allows sharing or storage of the data in its original structure. Here we create five different functions that execute CRUD operations.
To create a new book, we insert new values in our Book table. To read the existing books from our database, we use all. To update a book in our database, we first find the book, update the values and add them. And lastly, to delete a book, we first find the book, and then simply call delete and commit the change. To check our endpoints, we can use Postman. Postman is an application for testing APIs that works by sending requests to the web server and getting the responses back.
You should see something like the following image:. Once defined, we can use the api. The argument parser serves another function, it can validate the argument values. You can enable or disable argument validation for each method using the validate argument in the api.
Allowed values are int , str and bool. You can specify arguments to be present in the query of your method, but also in the headers or request body using the location keyword. To create an argument which accepts multiple values, use the action keyword and specify 'append' as value:.
To specify a list of valid argument values, use the choices keyword and provide an iterator as value. Each field has an associated type e. String , Integer , DateTime , which determines what values will be considered valid. The demo app has a number of API models in the serializers.
A simple example would look something like this:. Once the model is defined you can attach it to a method using the api. A field of an API model may use another model as its expected value. You would then provide a JSON object as a valid value for this field. If you have two similar models, you may use model inheritance to extend the definition of a model with additional fields. Audio Libraries for manipulating audio and its metadata.
TimeSide - Open web audio processing framework. Metadata beets - A music library manager and MusicBrainz tagger. Authentication Libraries for implementing authentications schemes. Build Tools Compile software from source code. BitBake - A make-like build tool for embedded Linux.
PlatformIO - A console tool to build code with different development platforms. SCons - A software construction tool. Built-in Classes Enhancement Libraries for enhancing Python built-in classes. Box - Python dictionaries with advanced dot notation access.
DottedDict - A library that provides a method of accessing lists and dicts with a dotted path notation. Kotti - A high-level, Pythonic web application framework built on Pyramid. Caching Libraries for caching data. HermesCache - Python caching library with tag-based invalidation and dogpile effect prevention. ChatOps Tools Libraries for chatbot development. Code Analysis Tools of static analysis, linters and code quality checkers. Code Analysis coala - Language independent and easily extendable code analysis application.
Code Linters flake8 - A wrapper around pycodestyle , pyflakes and McCabe. Code Formatters black - The uncompromising Python code formatter. Static Type Checkers, also see awesome-python-typing mypy - Check variable types during compile time. Static Type Annotations Generators MonkeyType - A system for Python that generates static type annotations by collecting runtime types. Command-line Interface Development Libraries for building command-line applications. Terminal Rendering alive-progress - A new kind of Progress Bar, with real-time throughput, eta and very cool animations.
Also provides a great RichHandler log handler. Productivity Tools copier - A library and command-line utility for rendering projects templates.
Invoke - A tool for managing shell-oriented subprocesses and organizing executable Python code into CLI-invokable tasks. PathPicker - Select files out of bash output. Compatibility Libraries for migrating from Python 2 to 3. Computer Vision Libraries for Computer Vision. Face Recognition - Simple facial recognition library. SimpleCV - An open source framework for building computer vision applications.
Concurrency and Parallelism Libraries for concurrent and parallel execution. Configuration Libraries for storing and parsing configuration options. Cryptography cryptography - A package designed to expose cryptographic primitives and recipes to Python developers. Data Analysis Libraries for data analyzing. Orange - Data mining, data visualization, analysis and machine learning through visual programming or scripts.
Pandas - A library providing high-performance, easy-to-use data structures and data analysis tools. Data Validation Libraries for validating data. Used for forms in many cases. Cerberus - A lightweight and extensible data validation library. Schematics - Data Structure Validation.
Data Visualization Libraries for visualizing data. Altair - Declarative statistical visualization library for Python. Bokeh - Interactive Web Plotting for Python. Cartopy - A cartographic python library with matplotlib support. Dash - Built on top of Flask, React and Plotly aimed at analytical web applications. Matplotlib - A Python 2D plotting library. PyGraphviz - Python interface to Graphviz. Seaborn - Statistical data visualization using Matplotlib.
Database Databases implemented in Python. A key-value and object graph database. Database Drivers Libraries for connecting and operating databases. I also advice on cloud configurations, deployment or scalability issues. I provide assistance with Python, Flask and security review of code. I also look into troubleshooting code t Discover and read more posts from Sagar Chand Agarwal. Be the first to share your opinion. GitHub flavored markdown supported.
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