# Class Extensions

OptimaJet.Workflow.Api.Postgres.Extensions

This class contains extensions for configuring Workflow Engine Api Data services for PostgreSQL.

Namespace: [OptimaJet.Workflow.Api.Postgres](https://api.workflowengine.io/web-api-postgresql/OptimaJet.Workflow.Api.Postgres/)

```csharp
public static class Extensions
```

## Methods

`public static IServiceCollection AddWorkflowApiPostgres(this IServiceCollection services)` 

Adds the Workflow Engine Api Data Persistence Provider services for PostgreSQL, enabling you to connect other Workflow Api services.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `services` | `IServiceCollection` | The [IServiceCollection](https://learn.microsoft.com/dotnet/api/microsoft.extensions.dependencyinjection.iservicecollection). |

### Returns

| Type | Description |
| --- | --- |
| `IServiceCollection` | A [IServiceCollection](https://learn.microsoft.com/dotnet/api/microsoft.extensions.dependencyinjection.iservicecollection) that can be used to further configure services. |