Golang REST API and Microservices

Developing REST APIs and microservices in Golang leverages the language's core strengths in concurrency, performance, and simplicity to build scalable, independent services. Go's built-in support for concurrency with goroutines and channels makes it exceptionally well-suited for handling many simultaneous API requests efficiently. Furthermore, its comprehensive standard library, especially the `net/http` package, allows developers to create lightweight, high-performance web servers with minimal external dependencies, making it a popular choice for constructing the modular and resilient back-end systems characteristic of a microservices architecture.

1. Go Language Fundamentals for Web Services
   1. Go Development Environment
      1. Installing Go
      2. Go Workspace Structure
      3. Environment Variables
      4. Go Toolchain Commands
         1. go run
         2. go build
         3. go test
         4. go mod
         5. go fmt
         6. go vet
   2. Core Language Syntax
      1. Variables and Constants
         1. Variable Declaration
         2. Constant Declaration
         3. Zero Values
         4. Type Inference
      2. Data Types
         1. Basic Types
            1. Numeric Types
            2. String Type
            3. Boolean Type
            4. Rune Type
         2. Composite Types
            1. Arrays
            2. Slices
            3. Maps
            4. Structs
            5. Pointers
            6. Channels
      3. Control Flow
         1. Conditional Statements
            1. if Statements
            2. switch Statements
         2. Loops
            1. for Loops
            2. range Loops
         3. Control Transfer
            1. break and continue
            2. goto
      4. Functions
         1. Function Declaration
         2. Parameters and Return Values
         3. Multiple Return Values
         4. Named Return Values
         5. Variadic Functions
         6. Anonymous Functions
         7. Closures
         8. Function Types
      5. Methods and Interfaces
         1. Method Declaration
         2. Receiver Types
         3. Value vs Pointer Receivers
         4. Interface Definition
         5. Interface Implementation
         6. Empty Interface
         7. Type Assertions
         8. Type Switches
      6. Structs and Composition
         1. Struct Definition
         2. Struct Literals
         3. Anonymous Fields
         4. Embedded Types
         5. Method Sets
   3. Advanced Data Structures
      1. Slices
         1. Slice Creation
         2. Slice Operations
         3. Slice Internals
         4. Memory Management
      2. Maps
         1. Map Creation
         2. Map Operations
         3. Map Iteration
         4. Map as Sets
      3. Channels
         1. Channel Types
         2. Channel Operations
         3. Channel Directions
         4. Buffered Channels
         5. Channel Closing
   4. Concurrency
      1. Goroutines
         1. Creating Goroutines
         2. Goroutine Scheduling
         3. Goroutine Lifecycle
         4. Common Pitfalls
      2. Channel Communication
         1. Synchronous Communication
         2. Asynchronous Communication
         3. Select Statement
         4. Channel Patterns
      3. Synchronization Primitives
         1. Mutexes
         2. RWMutexes
         3. WaitGroups
         4. Once
         5. Atomic Operations
      4. Concurrency Patterns
         1. Worker Pools
         2. Pipeline Pattern
         3. Fan-in Fan-out
         4. Context Cancellation
   5. Error Handling
      1. Error Interface
      2. Error Creation
      3. Error Wrapping
      4. Error Unwrapping
      5. Custom Error Types
      6. Error Propagation
      7. Panic and Recover
      8. Error Handling Best Practices
   6. Package Management
      1. Go Modules
      2. Module Initialization
      3. Dependency Management
      4. Version Selection
      5. Module Proxy
      6. Private Modules
      7. Vendoring
   7. Testing Fundamentals
      1. Unit Testing
      2. Test Functions
      3. Test Coverage
      4. Benchmarking
      5. Example Tests
      6. Test Helpers