# /api/v1/regions/select (management)

Source-derived management endpoint contract, authentication, request validation, responses, and errors.

Source: https://docs.minds.sh/docs/api/platform/reference/management--api-v1-regions-select



This is the **management** service route. Its origin and authentication are described in [Platform API overview](/docs/api/platform) and [Authentication](/docs/api/platform/authentication). A path shared by another service is a different endpoint.

| Property                       | Contract                                                                       |
| ------------------------------ | ------------------------------------------------------------------------------ |
| Methods                        | POST                                                                           |
| Path                           | `/api/v1/regions/select`                                                       |
| Path parameters                | None                                                                           |
| Query parameters read in route | None read directly; schema validation below may define additional fields       |
| Headers read in route          | No additional direct header reads; authentication helpers may read credentials |

## Authentication and access [#authentication-and-access]

Management auth context: validated x-api-key or configured session authentication; trusted gateway integration may select its auth pipeline. Organization/tenant checks are separate.

## Method behavior [#method-behavior]

The handler excerpt preserves field validation, response envelopes, cookie changes, and exception branches. Values returned by service helpers retain their named response type above; for passthrough routes, the upstream response is authoritative.

### POST [#post]

```typescript
export async function POST(request: NextRequest) {
  const requestId = generateRequestId()
  let rateLimitInfo: RateLimitMetadata | undefined

  try {
    const authContext = await resolveAuthContext(request)

    const body = await validateBody(request, SelectRegionRequest)

    const evaluation = await enforceRateLimit({
      context: authContext,
    })

    rateLimitInfo = {
      ...evaluation.metadata,
      retryAfter: evaluation.retryAfter,
    }

    if (evaluation.blocked) {
      throw new RateLimitExceededError(evaluation.retryAfter ?? 60)
    }

    // Get the best region slug
    const selectedSlug = await selectBestRegion(
      body.preferredRegion,
      body.latitude,
      body.longitude
    )

    // Get full region details
    const region = await getRegionBySlug(authContext, selectedSlug)

    const response = apiSuccess({
      selectedRegion: region,
      selectionReason: body.preferredRegion
        ? body.preferredRegion === selectedSlug
          ? 'preferred_region_available'
          : 'preferred_region_unavailable_fallback'
        : body.latitude !== undefined && body.longitude !== undefined
          ? 'geo_proximity'
          : 'default_primary',
    })
    return withRequestMetadata(response, requestId, rateLimitInfo)
  } catch (error) {
    if (error instanceof ApiError) {
      const response = apiError(error, requestId)
      return withRequestMetadata(response, requestId, rateLimitInfo)
    }
    console.error('Failed to select region:', error)
    const response = apiError(
      new ApiError(500, 'INTERNAL_ERROR', 'Failed to select region'),
      requestId
    )
    return withRequestMetadata(response, requestId, rateLimitInfo)
  }
}
```

Source: `minds-ui/apps/api-service/app/api/v1/regions/select/route.ts:26`.

## Response and error branches [#response-and-error-branches]

Literal HTTP statuses in the route: 500. Shared management error classes are defined in [Errors and responses](/docs/api/platform/errors).

```typescript
new RateLimitExceededError(evaluation.retryAfter ?? 60)
```

Source: `minds-ui/apps/api-service/app/api/v1/regions/select/route.ts:45`.

```typescript
apiSuccess({
      selectedRegion: region,
      selectionReason: body.preferredRegion
        ? body.preferredRegion === selectedSlug
          ? 'preferred_region_available'
          : 'preferred_region_unavailable_fallback'
        : body.latitude !== undefined && body.longitude !== undefined
          ? 'geo_proximity'
          : 'default_primary',
    })
```

Source: `minds-ui/apps/api-service/app/api/v1/regions/select/route.ts:58`.

```typescript
apiError(error, requestId)
```

Source: `minds-ui/apps/api-service/app/api/v1/regions/select/route.ts:71`.

```typescript
apiError(
      new ApiError(500, 'INTERNAL_ERROR', 'Failed to select region'),
      requestId
    )
```

Source: `minds-ui/apps/api-service/app/api/v1/regions/select/route.ts:75`.

```typescript
new ApiError(500, 'INTERNAL_ERROR', 'Failed to select region')
```

Source: `minds-ui/apps/api-service/app/api/v1/regions/select/route.ts:76`.

## Service dependencies [#service-dependencies]

* `minds-ui/apps/api-service/lib/api-response.ts`
* `minds-ui/apps/api-service/lib/validation.ts`
* `minds-ui/apps/api-service/types/errors.ts`
* `minds-ui/apps/api-service/lib/services/auth-context.ts`
* `minds-ui/apps/api-service/lib/services/region-service.ts`
* `minds-ui/apps/api-service/lib/services/rate-limit.ts`

## Evidence [#evidence]

Generated from the local source snapshot on 2026-09-12. This page documents implemented code and does not certify a deployed service, permissions configuration, or successful provider operation.

Source file: `minds-ui/apps/api-service/app/api/v1/regions/select/route.ts`. SHA-256: `aa6500d3a58eec2750c64ecb057fa94f2bbbd2ef58ca99bc6ba7aea52f45affb`.