Outro grande recurso necessário nas APIs é validação de dados, certificando que os dados são válidos, dados certos parâmetros. Por exemplo, algum campo é `int`, e não alguma string aleatória. Isso é especialmente útil para dados que estão chegando.

.Values.mountPath }} ## bucketRoot: "" # Number of drives attached to a node drivesPerNode: 1 # Number of MinIO containers running replicas: 16 # Number of expanded MinIO clusters pools: 1 # Deploy if 'mode == gateway' - 4 replicas. gateway: type: "nas" # currently only "nas,gcs" are supported. replicas: 4 gcs: serviceAccountFile: "" # credential JSON file of service account key (not required if using existing secret) projectId: "" # Google cloud project id required ## TLS Settings for MinIO tls: enabled: false...

.Values.mountPath }} ## bucketRoot: "" # Number of drives attached to a node drivesPerNode: 1 # Number of MinIO containers running replicas: 16 # Number of expanded MinIO clusters pools: 1 # Deploy if 'mode == gateway' - 4 replicas. gateway: type: "nas" # currently only "nas,gcs" are supported. replicas: 4 gcs: serviceAccountFile: "" # credential JSON file of service account key (not required if using existing secret) projectId: "" # Google cloud project id required ## TLS Settings for MinIO tls: enabled: false...

.Values.mountPath }} ## bucketRoot: "" # Number of drives attached to a node drivesPerNode: 1 # Number of MinIO containers running replicas: 16 # Number of expanded MinIO clusters pools: 1 # Deploy if 'mode == gateway' - 4 replicas. gateway: type: "nas" # currently only "nas" are supported. replicas: 4 ## TLS Settings for MinIO tls: enabled: false ## Create a secret with private.key and public.crt files and pass that here. Ref: https://github.com/minio/minio/tree/master/docs/tls/kubernetes#2-create-kubernetes-secret...

.Values.mountPath }} ## bucketRoot: "" # Number of drives attached to a node drivesPerNode: 1 # Number of MinIO containers running replicas: 16 # Number of expanded MinIO clusters pools: 1 # Deploy if 'mode == gateway' - 4 replicas. gateway: type: "nas" # currently only "nas,gcs" are supported. replicas: 4 gcs: serviceAccountFile: "" # credential JSON file of service account key (not required if using existing secret) projectId: "" # Google cloud project id required ## TLS Settings for MinIO tls: enabled: false...

E a classe de erro `HTTPException` do **FastAPI** herda da classe de erro do `HTTPException` do Starlette.

A diferença entre os dois é a de que o `HTTPException` do **FastAPI** permite que você adicione *headers* que serão incluídos nas *responses*.

Esses *headers* são necessários/utilizados internamente pelo OAuth 2.0 e também por outras utilidades de segurança.

    return {"item_id": item_id, "q": q}
```

**Nota**:

Se você não sabe, verifique a seção _"In a hurry?"_ sobre <a href="https://fastapi.tiangolo.com/async/#in-a-hurry" target="_blank">`async` e `await` nas docs</a>.

</details>

### Rode

Rode o servidor com:

<div class="termy">

```console
$ uvicorn main:app --reload

.Values.mountPath }} ## bucketRoot: "" # Number of drives attached to a node drivesPerNode: 1 # Number of MinIO containers running replicas: 16 # Number of expanded MinIO clusters pools: 1 # Deploy if 'mode == gateway' - 4 replicas. gateway: type: "nas" # currently only "nas" are supported. replicas: 4 ## TLS Settings for MinIO tls: enabled: false ## Create a secret with private.key and public.crt files and pass that here. Ref: https://github.com/minio/minio/tree/master/docs/tls/kubernetes#2-create-kubernetes-secret...

.Values.mountPath }} ## bucketRoot: "" # Number of drives attached to a node drivesPerNode: 1 # Number of MinIO containers running replicas: 16 # Number of expanded MinIO clusters pools: 1 # Deploy if 'mode == gateway' - 4 replicas. gateway: type: "nas" # currently only "nas" are supported. replicas: 4 ## TLS Settings for MinIO tls: enabled: false ## Create a secret with private.key and public.crt files and pass that here. Ref: https://github.com/minio/minio/tree/master/docs/tls/kubernetes#2-create-kubernetes-secret...

.Values.mountPath }} ## bucketRoot: "" # Number of drives attached to a node drivesPerNode: 1 # Number of MinIO containers running replicas: 16 # Number of expanded MinIO clusters pools: 1 # Deploy if 'mode == gateway' - 4 replicas. gateway: type: "nas" # currently only "nas" are supported. replicas: 4 ## TLS Settings for MinIO tls: enabled: false ## Create a secret with private.key and public.crt files and pass that here. Ref: https://github.com/minio/minio/tree/master/docs/tls/kubernetes#2-create-kubernetes-secret...