Shop configuration options

Name	Type	Env	Values	Default	Description
Env	string	ENV	prod, dev, test	prod	Server mode
RootDir	string	ROOT_DIR			Root dir
TmpDir	string	TMP_DIR		tmp	Temporary files dir
NoLog	bool	NO_LOG	true	false	Disable std log output

Example

[shop]
RootDir="/app"
TmpDir="/tmp"

Database

We currently support sqlite3, postgres and cockroach databases.

Name	Type	Env	Values	Default	Description
Type	string	DB_TYPE	postgres,sqlite3		Database type
Dsn	string	DB_CONNECTION			Database url
Host	string	DB_HOST			Database host
Port	uint	DB_PORT	1-65535		Database port
Name	string	DB_NAME			Database name
User	string	DB_USER			Database user
Pass	string	DB_PASS			database password
ConnMaxLifetime	time duration	DB_CONN_MAX_LIFETIME	“100s”,“10m”		Connection life time
MaxIdleConns	int	DB_MAX_IDLE_CONNS			Max idle connections
MaxOpenConns	int	DB_MAX_OPEN_CONNS			Max open connections
ReadOnly	bool	DB_READ_ONLY		false	Read only mode
Migrate	bool	DB_MIGRATE		false	Enable migrations

If you use dsn you don’t need to specify database type, host, port, name, user or pass.

Migrations

Upon startup the system checks if there are any pending database schema migrations and applies them in sequence. If one of the migrations fail everything gets rolled back and the startup fails with details in its log output.

The Migrate setting allows you to control automatic schema migrations. If you want to update or upgrade the system you cannot have ReadOnly mode and must set Migrate to true.

Database opts

The opts setting allows you to set additional configuration parameters for the database.

Name	Type	Env	Values	Default	Description
Set	string				Option setting
Val	string				Option value

The options you can set depends on the database type and version you are using.

Example sqlite3 database configuration.

[shop.database]
type = "sqlite3"
name = "/storage/shop.db"
migrate = true
[[shop.database.opts]]
set = "foreign_keys"
val = "ON"
[[shop.database.opts]]
set = "journal_mode"
val = "WAL"

The database gets created if it doesn’t exist.

Example Postgres database configuration.

[shop.database]
type = "postgres"
name = "shop"
user = "postgres"
pass = "postgres"
host = "127.0.0.1"
port = 5432
migrate = true

If you have granted create database permission to the db user the database is created.

Example Cockroach database configuration using dsn.

[shop.database]
dsn = "cockroach://root@localhost:26257/shop?sslmode=disable"
migrate = true

You must first create the shop database in cockroach or it will use defaultdb instead.

Backend

Server backend url (message bus).

Name	Type	Env	Values	Default	Description
Url	string	BACKEND_URL	url		Url to backend server (message bus)

Example

[shop.backend]
url = "nats://172.16.172.16:4222"