The Complete Guide to Protocol Buffers 3 [Java, Golang, Python] course will teach you everything you need to know to create simple and complex proto files, and write code in your favourite Programming language such as Java, Python and Golang.

In this course, you will explore in depth, with hands-on lectures, all the aspects of Protocol Buffers 3 and also learn about advanced Protocol Buffers concepts. The course is usually available for INR 2,599 on Udemy but students can click on the link and get the ‘Complete Guide to Protocol Buffers 3 [Java, Golang, Python]’ for INR 449.

Who all can opt for this course?

  • Developers who wish to learn how to construct Protocol Buffer data by writing code and proto files
  • Architects those who want to be able to use Protocol Buffers in their solution architecture

Course Highlights

Key HighlightsDetails
Registration LinkApply Now!
PriceINR 449 (INR 2,59980% off
Duration3.5 Hours
Student Enrollment22,779 students
InstructorClément Jeanémentjean
Topics CoveredJava Programming, Golang Programming, Python Programming, Protocol Buffer Basics
Course LevelIntermediate
Total Student Reviews3,898

Learning Outcomes

  • Both simple and complicated writing draught documents
  • Activities for Practice to Reinforce the Lessons
  • Use packages and imports wisely
  • Create code in any language using protoc
  • Java code that uses Protocol Buffers
  • Recognize Protobuf’s Data Evolution process
  • Discover more sophisticated Protocol Buffers ideas

Course Content

S.No.Module (Duration)Topics
1.Course Introduction (09 minutes)Why Protocol Buffers?
How are Protocol Buffers used?
Course Structure
About your instructor
Important Message
2.Code Download & VSCode Setup (37 seconds)Code Download
VSCode Setup (optional)
3.Protocol Buffers Basics I (15 minutes)First Message
Scalar Types
Repeated Fields
Enumerations (Enums)
Practice Exercises I
Solution to Practice Exercises I
4.Protocol Buffers Basics II (06 minutes)Defining Multiple Messages in the Same File
Nesting Messages
5.Exercise II and Solutions (16 minutes)Practice Exercise II
All in One Proto File
Nested Messages
6.Setting up Protoc Compiler (03 minutes)Setup Protoc Compiler
Using Protoc
Practice Using Protoc
7.Java Programming with Protocol Buffers (40 minutes)Important Message
Setup & Code Download in Java
Gradle Project Setup & Code Generation
Simple Message Creation in Java
Creating a Complex Message in Java
Dealing with Enums in Java
Dealing with Maps in Java
Dealing with OneOfs in Java
Serializing/Deserializing (Binary)
Serializing/Deserializing (JSON)
Java Options
Practice Exercise Java (self-guided)
8.Golang Programming with Protocol Buffers (39 minutes)Important Message
Setup & Code Download in Golang
Code generation in Golang
Simple Proto Struct in Golang
Complex Proto Struct in Golang
Enum Proto Struct in Golang
Handling OneOfs in Golang
Handling Maps in Golang
Reading and Writing to Disk
Reading and Writing to JSON
Practice Exercise Golang (self-guided)
9.Python Programming with Protocol Buffers (27 minutes)Important Message
Setup & Code Download in Python
Code generation in Python
Simple Proto Message in Python
Complex Proto Message in Python
Enum Proto Message in Python
Handling OneOfs in Python
Handling Maps in Python
Reading and Writing to Disk
Reading and Writing to JSON
Practice Exercise Python (self-guided)
10.Data Evolution with Protobuf (08 minutes)The Need for Updating Schemas
Rules for Data Evolution
Renaming Fields
Removing Fields
Reserved Keyword
Beware of Defaults
11.Protoc Advanced (11 minutes)–decode_raw Option
–decode Option
–encode Option
12.Protocol Buffers Advanced (19 minutes)Integer Types Deep Dive
Advanced Data Types (oneof, map, Timestamp and Duration)
Protocol Buffers Options
Naming Conventions
Introduction to gRPC (from gRPC Course)
Protocol Buffers Internals
13.Next Steps (02 minutes)List of Protocol Buffer Files to Explore
What’s next & Congratulations!
Bonus Lecture: Coupons for my other courses!

Resources Required

  • Some experience with programming (Java, Python or Go for example)
  • It is preferable if you have prior expertise with other file types like XML or JSON

Featured Review

Aruna Vellanki (5/5) : excellent course on protobuf.well organized and covered everything. Highly recommend this course.


  • Joachim Dechow (3/5) : It could be an excellent course if they share the slides.
  • Abhimanyu Krishna (5/5) : The exercises are a boon as it helps you get on to the concepts learnt, all at once, and gives a wonderful learning experience.
  • Rishi Srivastava (5/5) : Wanted to replace all with ProtoBuf and gRPC – this is the excellent pre-requisite course for gRPC.
  • Robert Lash (5/5) : This course is one of the best courses I have taken.


  • Emr (1/5) : I spend at least 2 hour everytime he executes protoc to get the same output as his.
  • Albin B (1/5) : Please update course content or remove it as its pretty much useless
  • Ahamedali Ms (1/5) : Too speed in explaining the concepts and difficult to grasp for the beginners

About the Author

The instructor of this course is Clément Jean who is a Protocol Buffers and gRPC Enthusiast. With 4.5 Instructor Rating and 10,970 Reviews on Udemy, he/she offers 5 Courses and has taught 59,629 Students so far.

  • Clement Jean is a Udemy instructor who studied software engineering (C, C++, and C#) at Epitech in Montpellier, France, then pursued a master’s degree in computer science at Tsinghua University in Beijing, China, followed by a business degree at CKGSB (Beijing, China)
  • Although Instructor come from a relatively varied background, Instructor is really interested in both teaching and programming, therefore Instructor mix the two to provide you more options to advance your career

Comparison Table

ParametersComplete Guide to Protocol Buffers 3 [Java, Golang, Python]Web Development w/ Google’s Go (golang) Programming LanguagegRPC [Golang] Master Class: Build Modern API & Microservices
OffersINR 455 (INR 2,599) 80% offINR 455 (INR 3,499) 87% offINR 455 (INR 3,499) 87% off
Duration3.5 hours19 hours4 hours
Rating4.5/54.7 /54.6 /5
Student Enrollments22,77953,97133,174
InstructorsClément JeanTodd McLeodClément Jean
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