active return 0 } # checkUserExists ($username) # Check if the user exists, by using the exit code of `mc admin user info` checkUserExists() { USER=$1 CMD=$(${MC} admin user info myminio $USER > /dev/null 2>&1) return $? } # createUser ($username, $password, $policy) createUser() { USER=$1 PASS=$2 POLICY=$3 # Create the user if it does not exist if ! checkUserExists $USER ; then echo "Creating user '$USER'" ${MC} admin user add myminio $USER $PASS else echo "User '$USER' already exists." fi # set policy...

		`Verify if MinIO binary is running as the same user who has write permissions for the backend`,
	)

	ErrPortAlreadyInUse = newErrFn(
		"Port is already in use",
		"Please ensure no other program uses the same address/port",
		"",
	)

	ErrPortAccess = newErrFn(
		"Unable to use specified port",
		"Please ensure MinIO binary has 'cap_net_bind_service=+ep' permissions",

## Additional Features { #additional-features }

The main [Tutorial - User Guide](../tutorial/index.md){.internal-link target=_blank} should be enough to give you a tour through all the main features of **FastAPI**.

In the next sections you will see other options, configurations, and additional features.

/// tip

The next sections are **not necessarily "advanced"**.

    protected Class<?> getLoginActionType() {
        return LoginAction.class;
    }

    /**
     * Converts a user key to a typed user ID.
     * In this implementation, returns the user key as-is.
     *
     * @param userKey the user key to convert
     * @return the typed user ID
     */
    @Override
    protected String toTypedUserId(final String userKey) {
        return userKey;
    }

                String user = index != -1 ? auth.substring(0, index) : auth;
                final String password = index != -1 ? auth.substring(index + 1) : "";
                index = user.indexOf('\\');
                if (index == -1) {
                    index = user.indexOf('/');
                }
                final String domain = index != -1 ? user.substring(0, index) : defaultDomain;

active return 0 } # checkUserExists ($username) # Check if the user exists, by using the exit code of `mc admin user info` checkUserExists() { USER=$1 CMD=$(${MC} admin user info myminio $USER > /dev/null 2>&1) return $? } # createUser ($username, $password, $policy) createUser() { USER=$1 PASS=$2 POLICY=$3 # Create the user if it does not exist if ! checkUserExists $USER ; then echo "Creating user '$USER'" ${MC} admin user add myminio $USER $PASS else echo "User '$USER' already exists." fi # set policy...

active return 0 } # checkUserExists ($username) # Check if the user exists, by using the exit code of `mc admin user info` checkUserExists() { USER=$1 CMD=$(${MC} admin user info myminio $USER > /dev/null 2>&1) return $? } # createUser ($username, $password, $policy) createUser() { USER=$1 PASS=$2 POLICY=$3 # Create the user if it does not exist if ! checkUserExists $USER ; then echo "Creating user '$USER'" ${MC} admin user add myminio $USER $PASS else echo "User '$USER' already exists." fi # set policy...

- If storage class is not defined before starting MinIO server, and subsequent PutObject metadata field has `x-amz-storage-class` present
with values `REDUCED_REDUNDANCY` or `STANDARD`, MinIO server uses default parity values.

### Set metadata

            if (isBeforeOrAfterPhase(task)) {
                String prevTask = task;
                task = PhaseId.of(task).phase();
                logger.warn("Illegal call to phase '{}'. The main phase '{}' will be used instead.", prevTask, task);
            }
            if (isGoalSpecification(task)) {
                // "pluginPrefix[:version]:goal" or "groupId:artifactId[:version]:goal"

The way to describe this in OpenAPI, is to mark that field as **required**, because it will always be there.

Because of that, the JSON Schema for a model can be different depending on if it's used for **input or output**:

* for **input** the `description` will **not be required**
* for **output** it will be **required** (and possibly `None`, or in JSON terms, `null`)