> ## Documentation Index
> Fetch the complete documentation index at: https://docs.clinikapi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# FHIR Passthrough

> Send raw FHIR R4 requests through the ClinikAPI gateway.

# FHIR Passthrough

The `/v1/fhir/*` endpoint lets you send raw FHIR R4 requests directly to the ClinikAPI FHIR gateway. Tenant isolation is still enforced — tenant tags are injected on creates and filtered on searches.

## Base Path

```
https://api.clinikapi.com/v1/fhir/{FhirResourcePath}
```

## Authentication

Same as all other endpoints — `x-api-key` header required.

## Supported Operations

| Method   | Path                   | Description       |
| -------- | ---------------------- | ----------------- |
| `GET`    | `/v1/fhir/{Type}`      | Search resources  |
| `GET`    | `/v1/fhir/{Type}/{id}` | Read a resource   |
| `POST`   | `/v1/fhir/{Type}`      | Create a resource |
| `PATCH`  | `/v1/fhir/{Type}/{id}` | Update a resource |
| `DELETE` | `/v1/fhir/{Type}/{id}` | Delete a resource |

## Tenant Isolation

Even in passthrough mode:

* **Creates**: `meta.tag` with your tenant ID is automatically injected
* **Searches**: `_tag` filter is automatically appended
* **Reads/Updates/Deletes**: ownership is verified

You cannot bypass tenant isolation.