```
pip install uvicorn
```

Et la même chose pour chacune des dépendances facultatives que vous voulez utiliser.

///

## Guide utilisateur avancé

Il existe également un **Guide d'utilisation avancé** que vous pouvez lire plus tard après ce **Tutoriel - Guide d'utilisation**.

        Path newCwd = resolve(seg);
        if (Files.isDirectory(newCwd)) {
            this.directory = newCwd;
        } else {
            throw new IllegalArgumentException("Directory '" + directory + "' does not exist");
        }
    }

# Each item may be enclosed in quotes to gracefully include spaces. Items are trimmed before being loaded.
# If the first character of an item is a question mark, the load will silently fail if the file does not exist.
${includes} = ?"${maven.user.conf}/maven-system.properties", \
              ?"${maven.project.conf}/maven-system.properties"

#
# Settings
#
# Define the default three levels for settings.

# Each item may be enclosed in quotes to gracefully include spaces. Items are trimmed before being loaded.
# If the first character of an item is a question mark, the load will silently fail if the file does not exist.
${includes} = ?"${maven.user.conf}/maven-user.properties", \
              ?"${maven.project.conf}/maven-user.properties"

#
# Maven Cache Configuration
#

That doesn't add any extra security to your API, the *path operations* will still be available where they are.

If there's a security flaw in your code, it will still exist.

       TFCI_BAZEL_TARGET_SELECTING_CONFIG_PREFIX is "$TFCI_BAZEL_TARGET_SELECTING_CONFIG_PREFIX".
       But in .bazelrc, there is no "rbe_$TFCI_BAZEL_TARGET_SELECTING_CONFIG_PREFIX".
       That setting must exist for this script to function correctly.
EOF
  exit 1
fi
TFCI_BAZEL_COMMON_ARGS="$TFCI_BAZEL_COMMON_ARGS --config rbe_$TFCI_BAZEL_TARGET_SELECTING_CONFIG_PREFIX"

if [[ `uname -s | grep -P '^MSYS_NT'` ]]; then

But in some cases you need to return a different status code than the default.

## Use case { #use-case }

For example, imagine that you want to return an HTTP status code of "OK" `200` by default.

But if the data didn't exist, you want to create it, and return an HTTP status code of "CREATED" `201`.

But you still want to be able to filter and convert the data you return with a `response_model`.

For those cases, you can use a `Response` parameter.

 * @param file a file in the directory to check. This file shouldn't already exist!
 */
internal fun FileSystem.isCivilized(file: Path): Boolean {
  sink(file).use {
    try {
      delete(file)
      return true
    } catch (_: IOException) {
    }
  }
  delete(file)
  return false
}

/** Delete file we expect but don't require to exist. */
internal fun FileSystem.deleteIfExists(path: Path) {
  try {

For example, let's say that you want to have a *path operation* that allows to update items, and returns HTTP status codes of 200 "OK" when successful.

But you also want it to accept new items. And when the items didn't exist before, it creates them, and returns an HTTP status code of 201 "Created".

To achieve that, import `JSONResponse`, and return your content there directly, setting the `status_code` that you want:

   * process with an exit status of 1, indicating abnormal termination.
   */
  public static UncaughtExceptionHandler systemExit() {
    return new Exiter(Runtime.getRuntime()::exit);
  }

  @VisibleForTesting
  interface RuntimeWrapper {
    void exit(int status);
  }

  @VisibleForTesting