Slack

Overview

Send notifications to a Slack channel.

About Slack Notifier

The Slack notifier allows you to get notification on your favorite slack channel when an instance of go-feature-flag is detecting changes in the configuration file.

Each notification lists the flags that were created, updated or deleted. For an updated flag, every change is described as a short sentence, for example:

✏️ Flag "dark-mode" updated
• Version set to `2`
• Targeting rule `beta-users` now matches `beta eq true or company eq "acme"` (was `beta eq true`)
• Targeting rule `internal` added: serves `enabled` when `email ew "@example.com"`
• Default rule now serves `disabled` 50%, `enabled` 50% (was `disabled` 90%, `enabled` 10%)

A flag shows at most 50 changes, and a last line counts the changes left out.

Configure Slack Notification

1. First, you need to create an incoming webhook on your slack instance. You can follow this documentation to see how to do it
2. Copy your webhook URL. It should look like: https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX.
3. Now you can configure your notifier

Configure the relay proxy

To configure your relay proxy to use the Slack notifier, you need to add the following configuration to your relay proxy configuration file:

goff-proxy.yaml

# ...
notifier:
  - kind: slack
    webhookUrl: "https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX"
# ...

Field name	Mandatory	Type	Default	Description
kind		string	none	Value should be slack. This field is mandatory and describe which retriever you are using.
webhookUrl		string	none	The complete URL of your incoming webhook configured in Slack.

Configure the GO Module

To configure your GO module to use the Slack notifier, you need to add the following configuration to your ffclient.Config{} object:

example.go

err := ffclient.Init(ffclient.Config{
    // ...
    Notifiers: []notifier.Notifier{
        &slacknotifier.Notifier{
            SlackWebhookURL: "https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX",
        },
        // ...
    },
})
defer ffclient.Close()

Field	Mandatory	Description
SlackWebhookURL		The complete URL of your slack webhook.