**FastAPI** will **extract** the data for **each field** from the **headers** in the request and give you the Pydantic model you defined.

## Check the Docs { #check-the-docs }

You can see the required headers in the docs UI at `/docs`:

<div class="screenshot">
<img src="/img/tutorial/header-param-models/image01.png">
</div>

## Forbid Extra Headers { #forbid-extra-headers }

- BucketAnalytics, BucketMetrics, BucketLogging (Use [bucket notification](https://docs.min.io/community/minio-object-store/administration/monitoring/bucket-notifications.html) APIs)

### List of Amazon S3 Object APIs not supported on MinIO

- ObjectACL (Use [bucket policies](https://docs.min.io/community/minio-object-store/administration/identity-access-management/policy-based-access-control.html) instead)

Y abre la documentación en <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.

Verás la documentación automática de la API para la aplicación principal, incluyendo solo sus propias _path operations_:

<img src="/img/tutorial/sub-applications/image01.png">

            <offlineLink>
              <url>https://javadoc.io/doc/com.google.j2objc/j2objc-annotations/latest/</url>
              <location>${project.basedir}/javadoc-link/j2objc-annotations</location>
            </offlineLink>
          </offlineLinks>
          <links>
            <link>https://docs.oracle.com/en/java/javase/21/docs/api/</link>
            <link>https://errorprone.info/api/latest/</link>

But FastAPI also supports using <a href="https://docs.python.org/3/library/dataclasses.html" class="external-link" target="_blank">`dataclasses`</a> the same way:

{* ../../docs_src/dataclasses/tutorial001.py hl[1,7:12,19:20] *}

- [Use `minio-java` SDK with MinIO Server](https://docs.min.io/community/minio-object-store/developers/java/minio-java.html)
- [Object Lock and Immutability Guide](https://docs.min.io/community/minio-object-store/administration/object-management/object-retention.html)
- [MinIO Admin Complete Guide](https://docs.min.io/community/minio-object-store/reference/minio-mc-admin.html)

* You can get metadata from the uploaded file.
* It has a <a href="https://docs.python.org/3/glossary.html#term-file-like-object" class="external-link" target="_blank">file-like</a> `async` interface.

* Você pode receber metadados do arquivo enviado.
* Ele tem uma <a href="https://docs.python.org/3/glossary.html#term-file-like-object" class="external-link" target="_blank">file-like</a> interface `assíncrona`.

![quota](https://raw.githubusercontent.com/minio/minio/master/docs/bucket/quota/bucketquota.png)

Buckets can be configured to have `Hard` quota - it disallows writes to the bucket after configured quota limit is reached.

## Prerequisites

- Install MinIO - [MinIO Quickstart Guide](https://docs.min.io/community/minio-object-store/operations/deployments/baremetal-deploy-minio-on-redhat-linux.html#procedure).

* The _path_ `/items/{item_id}` has an optional `str` _query parameter_ `q`.

### Interactive API docs { #interactive-api-docs }

Now go to <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.