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🧠 Learn Erlang
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🌐 Books to Read
🌟 Why Erlang?
In an age of massive concurrency, distributed architecture, and zero downtime expectations, Erlang shines as a purpose-built language for building fault-tolerant, scalable, and resilient systems.
Developed by Ericsson for telecom systems, Erlang now powers technologies like WhatsApp, real-time financial platforms, and IoT backends.
Its “let it crash” philosophy, lightweight processes, and message-passing model make it ideal for any system demanding high reliability under load.
📚 Table of Contents
📖 Introduction
- Why Erlang?
- What to Expect from This Book
- Who Should Read This Book?
- Learning Objectives
- Approach and Methodology
- Getting the Most Out of This Book
- Final Thoughts
💡 Introduction to Erlang
- What is Erlang?
- History and Evolution
- Key Features
- Erlang vs Other Languages
- Use Cases: Telecom, Gaming, IoT
- Setting Up the Environment
- Conclusion
🔤 Erlang Basics
- Your First Program
- Shell and REPL
- Syntax & Structure
- Variables and Immutability
- Data Types
- Pattern Matching
- Guards and Conditionals
- Functions and Modules
- Conclusion + Exercises
🧮 Functional Programming
- Functional Concepts
- Recursion
- Higher-Order Functions
- List Comprehensions
- Pure Functions & Side Effects
- Conclusion + Exercises
🧵 Concurrency and Processes
- Erlang’s Concurrency Model
- Creating and Managing Processes
- Message Passing
- Linking and Monitoring
- Supervisor Trees
- Fault Tolerance
- Conclusion + Exercises
🧰 OTP Framework
- Overview of OTP
- Behaviors:
GenServer,GenEvent,GenFSM - Supervision Trees
- Releases and Upgrades
- Conclusion + Exercises
🌐 Distributed Systems
- BEAM VM & Distributed Erlang
- Node Communication
- Global Process Registry
- Scalability & Fault Tolerance
- Tools for Managing Distributed Systems
- Conclusion + Exercises
📊 Data Handling
- Tuples, Lists, Maps, Records
- ETS (Erlang Term Storage)
- Mnesia DB
- File I/O and Binary Data
- JSON and XML Parsing
- Conclusion + Exercises
🌍 Networking & Web Development
- TCP/UDP Sockets
- Network Servers & Clients
- HTTP with Inets
- Cowboy Web Server
- REST APIs in Erlang
- Conclusion + Exercises
🧪 Testing, Debugging & Optimization
- Unit Testing with EUnit
- Common Test Framework
- Debugging Tools:
dbg,observer,trace - Dialyzer for Type Checking
- Profiling & Optimization
- Conclusion + Exercises
🚀 Advanced Topics
- Metaprogramming & Macros
- Native Implemented Functions (NIFs)
- Interfacing with C, Java, Python
- Custom Behaviors
- Real-Time Systems
- Conclusion + Exercises
🛠️ Practical Applications
- Real-Time Chat with OTP
- Fault-Tolerant Game Server
- IoT Backend
- Distributed Queue System
- Final Wrap-up
🔄 Erlang Ecosystem and Tools
- Rebar3 for Builds
- Libraries and Frameworks
- Code Formatting & Linting
- CI/CD Pipelines
- Conclusion
🔮 Future of Erlang
- Erlang vs. Elixir
- The BEAM Ecosystem
- Upcoming Features
- Community and Industry Adoption
- Final Thoughts
💬 “Erlang isn’t just a language. It’s a philosophy—build systems that never stop.”