# `Parapet.SLO.LoginJourney`
[🔗](https://github.com/szTheory/parapet/blob/v1.0.0/lib/parapet/slo/login_journey.ex#L1)

Provides an out-of-the-box SLO definition for the standard login journey.

> #### Experimental {: .warning}
>
> This module is **experimental** in v1.x. Its API may change in a minor release with a
> single-version notice in CHANGELOG.md. See
> [Stability & Deprecation Policy](stability.html) for details.

# `register`

Registers the login journey SLO with the Parapet.SLO registry.

## Options

  * `:objective` - The target objective percentage (default: `99.9`).
  * `:good_events` - PromQL string for good events.
    (default: `"sum(rate(parapet_journey_login_duration_milliseconds_count{outcome="success"}[5m]))"`)
  * `:total_events` - PromQL string for total events.
    (default: `"sum(rate(parapet_journey_login_duration_milliseconds_count[5m]))"`)
  * `:runbook` - URL to the runbook for this SLO. (default: `"https://example.com/runbooks/login-journey"`)

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*Consult [api-reference.md](api-reference.md) for complete listing*