emxqm-11 / go-bank-backend

This is code for the Duomly course - Learn Golang by building a bank app

Golang banking app

This is app for the Duomly Golang Course - Learn Golang by building banking App

Run

• Setup a PostgreSQL db * Troubleshoot section for more details
• You need to setup your connection string in the two files, vulnerable-db.go, and migrations.go
• Start migration by commenting migration in main.go and commenting API

func main() {
	// Init database
	database.InitDatabase()
	// Do migration
	migrations.Migrate()
	// api.StartApi()
}

• Run (this migrate to your db):

go run main.go

• Comment out migration and uncomment api (to start server)

func main() {
	// Init database
	database.InitDatabase()
	// Do migration
	// migrations.Migrate()
	api.StartApi()
}

• Run:

go run main.go

This should start your server on localhost:8888

API Examples

To register a new user:

Use this json as the body of your payload in a POST request to localhost:8888/register

{
	"username": "xxxxxx",
	"email": "[email protected]",
	"password": "some_password"
}

Example response from /register:

{
  "data": {
    "ID": 5,
    "Username": "xxxxxx",
    "Email": "[email protected]",
    "Accounts": [
      {
        "ID": 5,
        "Name": "xxxxxx's account",
        "Balance": 0
      }
    ]
  },
  "jwt": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJleHBpcnkiOjE2MTAxODQ1ODgsInVzZXJfaWQiOjV9.E8FXVYmz_N_IL0WnC9COO2XyrHc7HFPjmQUaeg3MKjk",
  "message": "all is fine"
}

To send a transaction: Use this json as the body of your payload in a POST request to localhost:8888/transaction

Make sure that you add your "jwt" token you obtain from /login or /register response and add that as your request's Authorization Bearer token.

{
	"UserId" : 1,
	"From": 1,
	"To": 3,
	"Amount" : 1000
}

Troubleshoot (Mac)

When you're setting up your postgres db for the first time on a mac you can run:

createuser -s postgres - fixes role "postgres" does not exist
createdb bankapp - fixes database "bankapp" does not exist