# Body - Multiple Parameters { #body-multiple-parameters }

Now that we have seen how to use `Path` and `Query`, let's see more advanced uses of request body declarations.

## Mix `Path`, `Query` and body parameters { #mix-path-query-and-body-parameters }

First, of course, you can mix `Path`, `Query` and request body parameter declarations freely and **FastAPI** will know what to do.

- name: fastapi-react
  html_url: https://github.com/Buuntu/fastapi-react
  stars: 2569
  owner_login: Buuntu
  owner_html_url: https://github.com/Buuntu
- name: Yuxi-Know
  html_url: https://github.com/xerrors/Yuxi-Know
  stars: 2563
  owner_login: xerrors
  owner_html_url: https://github.com/xerrors
- name: sqladmin
  html_url: https://github.com/aminalaee/sqladmin
  stars: 2558

Now let's extend this example and add more details to see how to test different parts.

### Extended **FastAPI** app file { #extended-fastapi-app-file }

Let's continue with the same file structure as before:

```
.
├── app
│   ├── __init__.py
│   ├── main.py
│   └── test_main.py
```

    private String realm;

    @Override
    public void init(final ServletConfig config) throws ServletException {
        super.init(config);

        /* Set jcifs.smb1 properties we know we want; soTimeout and cachePolicy to 10min.
         */
        Config.setProperty("jcifs.smb1.smb.client.soTimeout", "300000");
        Config.setProperty("jcifs.smb1.netbios.cachePolicy", "600");

	// This has nothing to do with if the drive is hung or not responding.
	// For that individual storage API calls will fail properly. The purpose
	// of this function is to know if the "drive" has "format.json" or not
	// if it has a "format.json" then is it correct "format.json" or not.
	IsOnline() bool

	// Returns the last time this disk (re)-connected
	LastConn() time.Time

* And many other things

## Conclusion { #conclusion }

If you read and understood all this, now **you know much more** about virtual environments than many developers out there. 🤓

 *  Add a media type class to OkHttp.
 *  Change custom header prefix:

    ```
    X-Android-Sent-Millis is now OkHttp-Sent-Millis
    X-Android-Received-Millis is now OkHttp-Received-Millis
    X-Android-Response-Source is now OkHttp-Response-Source
    X-Android-Selected-Transport is now OkHttp-Selected-Transport
    ```
 *  Improve cache invalidation for POST-like requests.

   * trouble, please let us know: https://github.com/google/guava/issues/new
   */
  @IgnoreJRERequirement
  public NullPointerTester() {
    try {
      /*
       * Converter.apply has a non-nullable parameter type but doesn't throw for null arguments. For
       * more information, see the comments in that class.
       *

/// danger

Never store the plain password of a user or send it in a response like this, unless you know all the caveats and you know what you are doing.

///

## Add an output model { #add-an-output-model }

We can instead create an input model with the plaintext password and an output model without it:

...Python has a little special syntax for that.

Pass `*`, as the first parameter of the function.

Python won't do anything with that `*`, but it will know that all the following parameters should be called as keyword arguments (key-value pairs), also known as <abbr title="From: K-ey W-ord Arg-uments"><code>kwargs</code></abbr>. Even if they don't have a default value.