command

PostgreSQL Command Support

Provides helpers for creating console commands that need PostgreSQL database access. The handler function wraps your command logic with automatic pool management.

Example

import glimr/console/command
import glimr_postgres/command as postgres_command

pub fn my_command() -> command.Command {
  command.new()
  |> command.name("my:command")
  |> command.description("Does database stuff")
  |> postgres_command.handler(fn(args, pool) {
    // pool is glimr_postgres.Pool - fully typed!
    use conn <- glimr_postgres.with_connection(pool)
    // ...
  })
}

Values

cache_handler

</>

pub fn cache_handler(
  cmd: command.Command,
  cache_db_handler: fn(
    command.Args,
    pool.Pool,
    List(driver.CacheStore),
  ) -> Nil,
) -> command.Command

Sets a cache handler for a command. Automatically:

Adds the –database option
Validates the connection exists and is PostgreSQL
Starts a typed pool
Calls your handler with the pool and cache stores
Stops the pool when done

Your handler receives a fully typed glimr_postgres.Pool and the list of cache stores for configuration lookup.

handler

</>

pub fn handler(
  cmd: command.Command,
  db_handler: fn(command.Args, pool.Pool) -> Nil,
) -> command.Command

Sets a database handler for a command. Automatically:

Adds the –database option
Validates the connection exists and is PostgreSQL
Starts a typed pool
Calls your handler with the pool
Stops the pool when done

Your handler receives a fully typed glimr_postgres.Pool.