Tech With Tim - CDN

CDN for the Tech With Tim website using Go

📝 Table of Contents

• 🏁 Getting Started
  • Environment variables
  • Running
• 🐳 Running with Docker
• 🚨 Tests
• 📜 Licence
• ⛏️ Built Using
• ✍️ Authors

🏁 Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See Running with Docker if you want to setup the CDN faster with Docker. ( Docker is optional )

Environment variables

Set the environment variables. Start by writing this in a file named app.env and test.env: (test.env is required for running tests)

app.env and test.env should look like this:

DB_URI=postgres://user:password@localhost:5432/dbname?sslmode=disable
SECRET_KEY=secret
MAX_FILE_SIZE=30

• SECRET_KEY is the key used for the JWT token encoding.
• MAX_FILE_SIZE is the maxiumum file size allowed in asset upload (in mb)

Running

• To create the Postgres container - make postgres
• To create the db - make createdb
• To drop db - make dropdb

Run go mod tidy to install packages

CLI commands

go run main.go migrate_up
go run main.go dropdb
go run main.go migrate_steps --steps int
go run main.go generate_docs
go run main.go runserver --host localhost --port port (localhost, 5000 are default)

To run migrations on the test database

go run main.go migrate_up -t
go run main.go dropdb -t
go run main.go migrate_steps -t --steps int

Use the make file, its your best friend 🛠

Make commands -

If you are on windows please use Git Bash or WSL. You also have to install Make for Windows To install Make for Windows run winget install GnuWin32.Make

make postgres # Creates docker container for postgres12
# Reads env variables from app.env
make createdb # Creates the db in the postgres container
make dropdb # Drops the db
make migrate_up # Migrates to the latest schema
make sqlc_generate # Generates sqlc code if you write queries
make generate_docs # Generates documentation
make test # Tests your code and shows coverage
# Its a big output make sure to read it all

🐳 Running with Docker

Start the cdn with docker-compose up

🗒️Docs

While adding new endpoints, you need add docs in the form of comments. For example:

/*
Response: String

URL Parameters: None

Request Body:
	- Name: username
	- Type: String
	- Description: "Username to register so and so . . ."

Description: "Returns `Hello, World` when called."
*/
func GetAllAssets(w http.ResponseWriter, r *http.Request) {
    w.WriteHeader(statusCode)
    json.NewEncoder(w).Encode("Hello, World")
}

And you will need to update the routes variable in routes.go

🚨 Tests

There are two methods to test the cdn -

make test

If you don't have make installed -

go run main.go migrate_up -t
go test ./... -v 

When you contribute, you need to add tests for the features you add.

⛏️ Built Using

• Go - Language
• go-chi - Router
• sqlc - Database Query Helper

✍️ Authors

See the list of contributors who participated in this project.