Interfaces - Command Line Applications in Go | Dreams of Code

Command Line Applications in Go

Introduction

7 lessons

Introduction to the course

Setting up your environment

Go 101: Variables, Values & Types

Go 101: Conditionals & Loops

Go 101: Functions & Pointers

Go 101: Packages

Counting Words

7 lessons

Starting a new project

Reading from a file

A Simple Word Counter

Table Driven Testing

A better algorithm

Input, Output, & Arguments

13 lessons

Introduction to input

Reading large files

Unicode & Runes

The bufio package

Decoupling & io.Reader

Command line arguments

Handling multiple errors

Closing files with defer

Adding Features

15 lessons

Adding new features

File offsets and seeking

Variadic parameters

Method receivers

Single pass algorithm

Organizing our code

Package visibility

Constructor arguments

Whitebox vs Blackbox testing

Concurrency & Streams

7 lessons

Introduction to concurrency & data

Goroutines & Waitgroups

Handling async errors

Advanced Testing

8 lessons

Introduction to Advanced Testing

Benchmark testing

End to end testing (e2e)

e2e: Testing files

e2e: Multiple files

Determinstic output

e2e: Testing flags

Creating test helpers

Commands, Signals, & Contexts

11 lessons

Executing commands

Passing in input

Configuring commands

Asynchronous execution

Graceful shutdown

context.Context

Building a process guard

Opening an editor

Fuzzing finding with fzf

Filesystem & Networking

14 lessons

Introduction to Networking & Files

File permissions

Walking the filesystem

Lockfiles & PIDFiles

The net package

The net/http package

Marshaling & unmarshaling data

Sending files with HTTP

Testing HTTP Requests

Powerful Command Line Applications

22 lessons

Introduction to Powerful CLI Apps

Subcommand Abstraction

Compressing files & data with GZip

Hashing files & data

Password & Secure Input

Have I been pwned?

Environment variables

Configuration files

Advanced Error Handling

Embedding Files

Cross platform code

Regular expressions

UI: A Loading Spinner

UI: A Progress Bar

Adding color to Stdout

Working with images

Distributing an application

An Application Builder

Popular CLI Packages

12 lessons

Introduction to Popular CLI packages

Subcommands with Cobra

POSIX flags with pFlag

Storing data with SQLite

Database Migrations with Migrate

Repositories with SQLc

Color with color

TUI with Bubble Tea

Test assertions with Testify

Mocking with go-mock

Releasing with Go releaser

Final Project

Coming Soon

Introduction to Final Project

Installing Ollama

Obtaining staged changes

Handling errors

Performing HTTP Requests

Adding in retry

Adding another provider

Commiting our messages

Introduction

7 lessons

Introduction to the course

Setting up your environment

Go 101: Variables, Values & Types

Go 101: Conditionals & Loops

Go 101: Functions & Pointers

Go 101: Packages

Counting Words

7 lessons

Starting a new project

Reading from a file

A Simple Word Counter

Table Driven Testing

A better algorithm

Input, Output, & Arguments

13 lessons

Introduction to input

Reading large files

Unicode & Runes

The bufio package

Decoupling & io.Reader

Command line arguments

Handling multiple errors

Closing files with defer

Adding Features

15 lessons

Adding new features

File offsets and seeking

Variadic parameters

Method receivers

Single pass algorithm

Organizing our code

Package visibility

Constructor arguments

Whitebox vs Blackbox testing

Concurrency & Streams

7 lessons

Introduction to concurrency & data

Goroutines & Waitgroups

Handling async errors

Advanced Testing

8 lessons

Introduction to Advanced Testing

Benchmark testing

End to end testing (e2e)

e2e: Testing files

e2e: Multiple files

Determinstic output

e2e: Testing flags

Creating test helpers

Commands, Signals, & Contexts

11 lessons

Executing commands

Passing in input

Configuring commands

Asynchronous execution

Graceful shutdown

context.Context

Building a process guard

Opening an editor

Fuzzing finding with fzf

Filesystem & Networking

14 lessons

Introduction to Networking & Files

File permissions

Walking the filesystem

Lockfiles & PIDFiles

The net package

The net/http package

Marshaling & unmarshaling data

Sending files with HTTP

Testing HTTP Requests

Powerful Command Line Applications

22 lessons

Introduction to Powerful CLI Apps

Subcommand Abstraction

Compressing files & data with GZip

Hashing files & data

Password & Secure Input

Have I been pwned?

Environment variables

Configuration files

Advanced Error Handling

Embedding Files

Cross platform code

Regular expressions

UI: A Loading Spinner

UI: A Progress Bar

Adding color to Stdout

Working with images

Distributing an application

An Application Builder

Popular CLI Packages

12 lessons

Introduction to Popular CLI packages

Subcommands with Cobra

POSIX flags with pFlag

Storing data with SQLite

Database Migrations with Migrate

Repositories with SQLc

Color with color

TUI with Bubble Tea

Test assertions with Testify

Mocking with go-mock

Releasing with Go releaser

Final Project

Coming Soon

Introduction to Final Project

Installing Ollama

Obtaining staged changes

Handling errors

Performing HTTP Requests

Adding in retry

Adding another provider

Commiting our messages

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Interfaces - Command Line Applications in Go | Dreams of Code

Command Line Applications in Go
Final Project
Interfaces

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Coming soon!

This lesson is expected to drop June 2025! Check back then.

Final Project

Interfaces

Coming soon

Full Course

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