GOLANG

This repository is for Golang-related materials with examples

Table of content

1. Essentials.
   • Packages & Modules
   • How to build and run your first app
   • variable assignments, const, println
   • String Formatting, output formatting. Sprintf, Println. Project_2: Profit Calculator
   • if-else if-else
   • functions. return several variables
   • loop. for. infinite loop. switch. labeled loop
2. Read and Write from files
   • Read from the file
   • Write to the file
3. Error Handling
   • Graceful handling and panic (crashing the app)
   • Example 2 with panic and error as second return parameter
4. Packages
   • General Project Structure. package alias/shortname
   • Separating Packages
   • Exporting from the package
   • Work with 3rd party packages. Dummy Data
5. Pointers
   • Pointers. * and & symbols. Lots of examples
   • Pointers In Methods and Receiver Arguments
6. Structs
   • Struct. Constructor. Methods. Mutators. Pointers and where it's necessary
   • Difference in struct usage
   • Constructor Validation
   • Embedding. Struct Inside Struct
   • lowercase and uppercase visibility within the package
7. Interfaces
8. Concurrency, Goroutines, WaitGroup
   • Goroutines, Channels. Simple Examples with explanation
   • Goroutines and Error Handling
   • Concurrency using WaitGroup and Worker Channel

For Intermediate

1. General
   • [Struct allocation on Stack and on Heap](in progress. Shortly - depends on pointer Escaping. If pointer never escapes the function - struct will be allocated on Stack. Otherwise on Heap)
   • custom types and aliases using type
2. Backend Tricks

Backend API Project using latest trends

0. Gin Templating
1. WebAPI using Gin with Postman collection
2. WebAPI Gin with Docker and docker-compose
3. GORM meets webAPI. AutoMigrate, Anemic Model, Services
4. Golang meets Azure Function (in progress)
5. Golang meets GraphQL (in progress)
6. Golang with PGX and GORM vs EntityFramework with LINQ (in progress)