## Pegue o `username` (nome de usuário) e `password` (senha)

É utilizado o utils de segurança da **FastAPI** para obter o `username` e a `password`.

OAuth2 especifica que ao usar o "password flow" (fluxo de senha), que estamos usando, o cliente/usuário deve enviar os campos `username` e `password` como dados do formulário.

{* ../../docs_src/security/tutorial005_an_py310.py hl[106,108:116] *}

## Verify the `username` and data shape

We verify that we get a `username`, and extract the scopes.

        uses: actions/setup-java@8df1039502a15bceb9433410b1a100fbe190c53b # v4.5.0
        with:
          java-version: 21
          distribution: 'zulu'
          server-id: sonatype-nexus-snapshots
          server-username: CI_DEPLOY_USERNAME
          server-password: CI_DEPLOY_PASSWORD
          cache: 'maven'
      - name: 'Publish'
        env:
          CI_DEPLOY_USERNAME: ${{ secrets.CI_DEPLOY_USERNAME }}

	var parentUserActualDNList []string
	// Map of LDAP user (internal representation) to list of active credential objects
	parentUserToCredsMap := make(map[string][]auth.Credentials)
	// DN to ldap username mapping for each LDAP user
	actualDNToLDAPUsernameMap := make(map[string]string)
	// External (actual) LDAP DN to internal normalized representation
	actualDNToParentUserMap := make(map[string]string)

@app.get("/items/{item_id}")
def get_item(item_id: str, username: Annotated[str, Depends(get_username)]):
    if item_id not in data:
        raise HTTPException(status_code=404, detail="Item not found")
    item = data[item_id]
    if item["owner"] != username:
        raise OwnerError(username)
    return item
```

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