## Tools {#tools}

### Go command {#go-command}

<!-- go.dev/issue/74667 -->
`cmd/doc`, and `go tool doc` have been deleted. `go doc` can be used as
a replacement for `go tool doc`: it takes the same flags and arguments and
has the same behavior.

errors.app.illegal.transition = Illegal transition. Please try again.
errors.app.db.already.deleted = It may have been deleted by another process. Please try again.
errors.app.db.already.updated = It may have been updated by another process. Please try again.
errors.app.db.already.exists = The data already exists. Please try again.
errors.app.double.submit.request = It may have been processed before this request. Please try again.

errors.app.illegal.transition = Illegal transition. Please try again.
errors.app.db.already.deleted = It may have been deleted by another process. Please try again.
errors.app.db.already.updated = It may have been updated by another process. Please try again.
errors.app.db.already.exists = The data already exists. Please try again.
errors.app.double.submit.request = It may have been processed before this request. Please try again.

<img src="/img/tutorial/path-params/image01.png">

/// info

À nouveau, en utilisant uniquement les déclarations de type Python, **FastAPI** vous fournit automatiquement une documentation interactive (via Swagger UI).

On voit bien dans la documentation que `item_id` est déclaré comme entier.

///

## Les avantages d'avoir une documentation basée sur une norme, et la documentation alternative.

### Tự động hóa tài liệu


Tài liệu tương tác API và web giao diện người dùng. Là một framework được dựa trên OpenAPI do đó có nhiều tùy chọn giao diện cho tài liệu API, 2 giao diện bên dưới là mặc định.

* <a href="https://github.com/swagger-api/swagger-ui" class="external-link" target="_blank"><strong>Swagger UI</strong></a>, với giao diện khám phá, gọi và kiểm thử API trực tiếp từ trình duyệt.

cloud** qui fait une partie du travail pour vous, ou encore d'autres options possibles.

Je vais vous montrer certains des principaux concepts que vous devriez probablement avoir à l'esprit lors du déploiement
d'une application **FastAPI** (bien que la plupart de ces concepts s'appliquent à tout autre type d'application web).

  - By default, `<IS_HOST>` is localhost. However, if using a public IP, the respective IP address or domain needs to be specified.
  - By default, `<IS_HTTPS_PORT>` has been set to 9443. However, if the port offset has been incremented by n, the default port value needs to be incremented by n.

Request

```

//    connection.queueEvent { connectionListener.connectEnd(connection) }
    scheduleCloser()
  }

  /**
   * Notify this pool that [connection] has become idle. Returns true if the connection has been
   * removed from the pool and should be closed.
   */
  fun connectionBecameIdle(connection: RealConnection): Boolean {
    connection.assertLockHeld()

        // Default constructor
    }

    /**
     * The expiration time for this response in milliseconds.
     */
    public long expiration;
    /**
     * Flag indicating whether this response has been received.
     */
    public boolean isReceived;

  }

  /**
   * Starts specifying how to combine {@link ClosingFuture}s into a single pipeline.
   *
   * @throws IllegalStateException if a {@code ClosingFuture} has already been derived from any of
   *     the {@code futures}, or if any has already been {@linkplain #finishToFuture() finished}
   */
  public static Combiner whenAllComplete(Iterable<? extends ClosingFuture<?>> futures) {
    return new Combiner(false, futures);
  }