"Java Web Services" from Udemy is the first name on the list of the best online Application Programming Interfaces courses that Toplist has compiled for you. This course, which is a best-seller on Udemy, is for people who want to learn how to develop web services and APIs in Java. The instructor explains how to design and develop SOAP and REST APIs from the ground up in this course. This course goes over everything in great detail. With concepts and step-by-step implementations, this course will make things easier. By the time you have finished, you will be able to recognize the benefits of Web Services and the components that make them up, demystify difficult concepts such as WSDL and Web Services Design, and implement Web Services from the Top-Down and Bottom-Up, among other things!

This is a lengthy course with seventeen hours of video content. It is a beginner's course, but it is also the best and most comprehensive course for learning Java API and web service development. Java Developers, JEE Developers, and students with a Java background should enroll in this course.

This course offers:

• 17 hours on-demand video
• 5 articles
• 24 downloadable resources
• Full lifetime access
• Access on mobile and TV
• Assignments
• Certificate of completion

Course by: Udemy
Udemy Rating: 4.6/5.0
Enroll here: udemy.com/course/java-web-services

"REST APIs with Flask and Python" from Udemy is the next name on the list of the best online Application Programming Interfaces courses that Toplist has compiled for you. This course is the best option if you want to learn REST API development in Python. It is Udemy's best-selling API development course. The instructor in this course focuses on creating REST APIs with Python, a popular programming language. Furthermore, the instructor uses the Flask framework in addition to Python, which is a great minimal web development framework for Python developers to learn.

You will learn how to create REST APIs, connect web and mobile applications to databases and servers, and perform authentication, among other things. This course has a total video content of seventeen hours and is designed for beginners. Students interested in using server-side technologies to enhance the capabilities of mobile and web applications and those interested in learning Python with a focus on web services should be the ones suitable for this course. Besides, if you are a software developer looking to broaden your skillset by learning to develop professional-grade REST APIs, you also need to enroll in this course.

This course offers:

• 17 hours on-demand video
• 25 articles
• 15 downloadable resources
• 7 coding exercises
• Full lifetime access
• Access on mobile and TV
• Certificate of completion

Course by: Udemy
Udemy Rating: 4.6/5.0
Enroll here: udemy.com/course/rest-api-flask-and-python

"WebServices/Rest API Testing with SoapUI +Real time Projects" is considered one of the most popular API automation courses on Udemy that Toplist would like to share with you. In this course, the instructor explains the meaning of APIs, web services, and the differences between them in a clear and concise manner. This course focuses on using the SoapUI to test REST APIs. Throughout this course, the instructor explains the various types of automation that can be performed using the REST API. At the conclusion of this course, you will have a thorough understanding of web services, APIs, and their functionality. This is a lengthy course with nineteen hours of video content.

Manual testers who want to learn web services testing, functional automation testers who would like to extend their scripting on web services, penetration testers who want to understand security flaws, and any graduate who wants to kick start their career in testing are suitable to enroll in this course.

This course offers:

• 15 hours on-demand video
• 14 articles
• 16 downloadable resources
• Full lifetime access
• Access on mobile and TV
• Certificate of completion

Course by: Udemy
Udemy Rating: 4.5/5.0
Enroll here: udemy.com/course/webservices-testing-with-soap-ui

"Server-side Development with NodeJS, Express, and MongoDB" from Coursera is the next name on the list of the best online Application Programming Interfaces courses that Toplist would like to introduce to you.

This is Coursera's most popular API development course. It is a part of a full stack of expertise. The instructor covers server-side development with Node.js, Express, and MongoDB in this course. The main focus of this course is on using JavaScript to create REST APIs. At the end of this course, you will be able to show an understanding of server-side concepts, CRUD and REST, using the NodeJS framework to create and configure a backend server, and create a RESTful API for accessing backend services from the front end. This is an excellent course because these three technologies (Node.js, Express, and MongoDB) are the foundations of the popular MEAN and MERN stacks. Another thing you need to remember is that this is a course for intermediate students.

This course offers:

• Flexible deadlines
• Shareable Certificate
• 100% online
• Intermediate Level
• Subtitles: Arabic, French, Portuguese (European), Italian, Vietnamese, German, Russian, English, Spanish

Course by: Coursera
Coursera Rating: 4.7/5.0
Enroll here: coursera.org/learn/server-side-nodejs

"Designing RESTful Web AP" from PluralSight" is the next name on the list of the best online Application Programming Interfaces courses. Pluralsight's most popular API development course is this one. You will learn how to create RESTful APIs for the web and mobile in this course. The instructor clearly explains what a REST API is and how to use one. It is a two-hour beginner's course with two hours of video content.

Designing RESTful Web APIs is a course that will help you design your API to meet your needs before you start implementing it. To begin, you will look at the design philosophies for building an API on top of REST that is not dogmatic. Following that, you will learn how to design APIs that take into account URIs, verbs, message bodies, versioning, and security. Finally, instead of extending your proof of concept into a supported API that you can't get rid of, you'll look at how creating an API can stand the test of time. By the end of this course, you will have a complete understanding and knowledge of how to create useful APIs for your project.

This course offers:

• Beginner Level
• Duration of 2h 6m

Course by: Pluralsight
Pluralsight Rating: 4.5/5.0
Enroll here: pluralsight.com/courses/designing-restful-web-apis