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Mastering API Development with Python, Django REST Framework, PostgreSQL, and Postman – Build GET, POST, PUT, and DELETE

What you will learn

How to build a REST API web service with the Django REST framework

Set up a development environment with Python, Django, PostgreSQL, and Postman

Understand the fundamentals of RESTful architecture and API design principles

Model resources and perform serialization using Django models and serializers

Implement CRUD operations (Create, Read, Update, Delete) on API resources using Django REST Framework

Handle relationships between models and serialization for complex API structures

Explore advanced API features such as CORS for improved functionality and scalability

Writing API Endpoints like GET, POST, PUT, and DELETE methods

Optimize database queries using PostgreSQL for enhanced performance

Use Postman for comprehensive API testing, including request sending, response inspection, and API Calling

REST API testing workflows in Postman for efficient and reliable testing

Handle common error scenarios and debug your APIs effectively

Sending Images or Docs to upload using Django REST APIs

Description

The “Build REST APIs with Python, Django REST Framework, PostgreSQL, and Postman API Testing” course is a comprehensive and practical learning experience that will equip you with the skills and tools needed to create robust and scalable RESTful APIs using Python, Django REST Framework, PostgreSQL, and Postman for API testing.

In today’s interconnected world, REST APIs play a crucial role in enabling communication between different applications and services. This course is designed to provide you with a solid foundation in building REST APIs using Python, leveraging the power of Django REST Framework, and utilizing PostgreSQL as the database backend. Additionally, you will learn how to test your APIs effectively using Postman.

Throughout the course, you will start with the fundamentals and gradually progress to more advanced topics. You will learn how to set up a development environment with Python, Django, and PostgreSQL, and configure Django REST Framework for backend API development. The course will cover key concepts such as resource modeling, serialization, JSON Parsing, and JSON Response on HTTP Requests while emphasizing the importance of data integrity and security.

By combining Python, Django REST Framework, and PostgreSQL, you will gain hands-on experience in implementing CRUD operations (Create, Read, Update, Delete) on your API resources, managing relationships between models, and optimizing database queries for improved performance. You will also learn to create GET, POST, PUT, and DELETE methods for your serializer model classes to enhance the functionality and scalability of your APIs.

Furthermore, the course will introduce you to Postman, a popular API testing tool. You will learn how to create comprehensive test suites to verify the functionality and behavior of your APIs. From sending requests and inspecting responses on workflows, you will become proficient in using Postman to ensure the quality and reliability of your APIs.

Real-world examples and practical exercises will be integrated into the course, allowing you to apply your newfound knowledge in a hands-on manner. You will develop API endpoints, write APIs and tests, and handle error scenarios.

Key Topics Covered:

– Setting up a development environment with Python, Django, PostgreSQL, and Postman

– Introduction to RESTful architecture and API design principles

– Resource modeling and serialization using Django models and serializers

– Applying Cross-Origin-Resource-Sharing (CORS)


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– Implementing CRUD operations on API resources with Django REST Framework

– Managing relationships between models and serialization

– Advanced API features: making a unique record to update

– Optimizing database queries with PostgreSQL

– Introduction to Postman and API testing fundamentals

– Creating comprehensive test suites in Postman

– Handling common error scenarios and debugging

– Writing a Base path setting to save External images or docs on API requests

– Postman API to save external Images to local project

By the end of this course, you will have the skills and confidence to develop robust REST APIs using Python, Django REST Framework, PostgreSQL, and effectively test them using Postman. Whether you’re a beginner seeking to enter the world of API development or an experienced developer looking to enhance your skills, this course will provide you with the knowledge and hands-on practice necessary to build high-quality and thoroughly tested backend web APIs.

English
language

Content

Introduction

Introduction
Getting started on Windows, macOS, and Linux
How to ask great questions
FAQs

Setting up a Python development

Installing Python step by step
Installing PyCharm IDE (code editor) for development
Creating the first project
Write and Run Hello World program
Command line basics
Installing and accessing pip command
Postman API platform installation

Django setting up the REST API project

Introduction to web framework and Django
Installing Django and Djangorestframework
Django(CORS) installation
Creating Django project
Understanding Django architecture and structured
Creating a Django application
Understanding Django models, views, and URL routings
Registering the app to project

Building Django Models for API with PostgreSQL

Introduction to PostgreSQL and its advantages for web applications
Installing PostgreSQL and setting up
pgAdmin Secure login and create database
Building Django models for the REST API data structures

Django API Model ORM-Migrations to PostgreSQL

Installing the psycopg2 module for DB connection
Database (DB) connection – Django to PostgreSQL
Creating and applying ORM-migrations for the PostgreSQL database
SQL Querying and adding Sample Data into tables

Creating Serializers for Complex Datatypes

Serializers in Django REST API
Serializing data with Django REST Framework serializers

Writing REST API Endpoints

Import required modules to write API methods
Implementing API GET method using REST Framework
Implementing API POST method using REST Framework
Implementing API PUT method using REST Framework
Implementing API DELETE method using REST Framework
Validating data with Django REST Framework validators
Handling API requests and responses

URLs Mapping on Application and Project

Writing App URLs and path setting
Write Project URLs and include app
Exercise and Solution for it

POSTMAN for Testing API Methods

Exploring Postman API app
API GET method testing
API POST method testing
API PUT method testing
API DELETE method testing

Project: Creating REST APIs Quickly

Creating REST API methods at one snap
Writing URLs on an app for access APIs
POSTMAN API testing

Building Image Upload REST API Service

Base image save path setting on project
Write the API method to save image
Adding urls path and static settings to save image
Postman API to test and save image