listmonk/internal/migrations/v0.9.0.go
Kailash Nadh 027261793f Add support for rate limiting messages with a sliding window.
Certain SMTP hosts limit the total number of messages that can be
sent within a window, for instance, X / 24 hours. The concurrency
and message rate controls can only limit that to a max of
1 messages / second, without a global cap.

This commit introduces a simple sliding window rate limit feature
that counts the number of messages sent in a specific window, and
upon reaching that limit, waits for the window to reset before
any more messages are pushed out globally across any number of
campaigns.

Context: https://github.com/knadh/listmonk/issues/119
2021-01-24 12:19:26 +05:30

20 lines
510 B
Go

package migrations
import (
"github.com/jmoiron/sqlx"
"github.com/knadh/koanf"
"github.com/knadh/stuffbin"
)
// V0_9_0 performs the DB migrations for v.0.9.0.
func V0_9_0(db *sqlx.DB, fs stuffbin.FileSystem, ko *koanf.Koanf) error {
_, err := db.Exec(`
INSERT INTO settings (key, value) VALUES
('app.lang', '"en"'),
('app.message_sliding_window', 'false'),
('app.message_sliding_window_duration', '"1h"'),
('app.message_sliding_window_rate', '10000')
ON CONFLICT DO NOTHING;
`)
return err
}