# `Mailglass.Credo.NoBareOptionalDepReference`
[🔗](https://github.com/szTheory/mailglass/blob/v1.0.0/credo_checks/no_bare_optional_dep_reference.ex#L1)

## Basics

> #### This check is disabled by default. {: .neutral}
>
> [Learn how to enable it](`e:credo:config_file.html#checks`) via `.credo.exs`.

This check has a base priority of `high` and works with any version of Elixir.

## Explanation

Optional dependencies must be reached through `Mailglass.OptionalDeps.*`
gateway modules, never referenced directly from application code.

## Check-Specific Parameters

Use the following parameters to configure this check:

### `:gated_modules`

  Map of optional dependency root modules to their required gateway module.

*This parameter defaults to* `%{Oban => Mailglass.OptionalDeps.Oban, Mjml => Mailglass.OptionalDeps.Mjml, Sigra => Mailglass.OptionalDeps.Sigra, OpenTelemetry => Mailglass.OptionalDeps.OpenTelemetry, GenSmtp => Mailglass.OptionalDeps.GenSmtp}`.

### `:included_path_prefixes`

  Only files in these path prefixes are linted.

*This parameter defaults to* `["lib/mailglass/"]`.

## General Parameters

Like with all checks, [general params](`e:credo:check_params.html`) can be applied.

Parameters can be configured via the [`.credo.exs` config file](`e:credo:config_file.html`).

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