It can be used by third party applications and systems.

And it can also be used by yourself, to debug, check and test the same application.

## The `password` flow { #the-password-flow }

Now let's go back a bit and understand what is all that.

The `password` "flow" is one of the ways ("flows") defined in OAuth2, to handle security and authentication.

    }

    /**
     * Returns the password.
     * @return The password.
     */
    public String getPassword() {
        return password;
    }

    /**
     * Sets the password.
     * @param password The password.
     */
    public void setPassword(final String password) {
        this.password = password;
    }

    /**

     */
    public String getPassword() {
        return password;
    }

    /**
     * Set the user's password which is used when connecting to the repository.
     *
     * @param password password of the user
     */
    public void setPassword(String password) {
        this.password = password;
    }

    /**
     * Get the username used to access the repository.
     *

        TermQueryBuilder builder = regTermQ("password", password);
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

    public void setPassword_NotEqual(String password) {
        setPassword_NotTerm(password, null);
    }

    public void setPassword_NotTerm(String password) {
        setPassword_NotTerm(password, null);

`password` "💧" 1️⃣ 🌌 ("💧") 🔬 Oauth2️⃣, 🍵 💂‍♂ & 🤝.

Oauth2️⃣ 🔧 👈 👩‍💻 ⚖️ 🛠️ 💪 🔬 💽 👈 🔓 👩‍💻.

✋️ 👉 💼, 🎏 **FastAPI** 🈸 🔜 🍵 🛠️ & 🤝.

, ➡️ 📄 ⚫️ ⚪️➡️ 👈 📉 ☝ 🎑:

* 👩‍💻 🆎 `username` & `password` 🕸, & 🎯 `Enter`.
* 🕸 (🏃‍♂ 👩‍💻 🖥) 📨 👈 `username` & `password` 🎯 📛 👆 🛠️ (📣 ⏮️ `tokenUrl="token"`).
* 🛠️ ✅ 👈 `username` & `password`, & 📨 ⏮️ "🤝" (👥 🚫 🛠️ 🙆 👉).

        try {
            String username = "testuser";
            String password = "testpass";
            server = startFtpServer(FTP_PORT, username, password);
            Map<String, Object> params = new HashMap<String, Object>();
            FtpAuthentication auth = new FtpAuthentication();
            auth.setUsername(username);
            auth.setPassword(password);

🍵 👈, 👥 🥇 🗜 `username` & `password` `bytes` 🔢 👫 ⏮️ 🔠-8️⃣.

⤴️ 👥 💪 ⚙️ `secrets.compare_digest()` 🚚 👈 `credentials.username` `"stanleyjobson"`, & 👈 `credentials.password` `"swordfish"`.

{* ../../docs_src/security/tutorial007.py hl[1,11:21] *}

👉 🔜 🎏:

```Python
if not (credentials.username == "stanleyjobson") or not (credentials.password == "swordfish"):
    # Return some error
    ...
```

 */

/**
 * Provides the API for the Maven Password Encryption tool ({@code mvnenc}).
 *
 * <p>This package contains interfaces and classes for the password encryption tool,
 * which helps secure sensitive information in Maven settings and configuration files.</p>
 *
 * <p>Key features include:</p>
 * <ul>
 *   <li>Password encryption and decryption</li>
 *   <li>Master password management</li>

If it doesn't receive it, it returns an HTTP 401 "Unauthorized" error.

And returns a header `WWW-Authenticate` with a value of `Basic`, and an optional `realm` parameter.

That tells the browser to show the integrated prompt for a username and password.

Then, when you type that username and password, the browser sends them in the header automatically.

# 🙅 Oauth2️⃣ ⏮️ 🔐 & 📨

🔜 ➡️ 🏗 ⚪️➡️ ⏮️ 📃 & 🚮 ❌ 🍕 ✔️ 🏁 💂‍♂ 💧.

## 🤚 `username` & `password`

👥 🔜 ⚙️ **FastAPI** 💂‍♂ 🚙 🤚 `username` & `password`.

Oauth2️⃣ ✔ 👈 🕐❔ ⚙️ "🔐 💧" (👈 👥 ⚙️) 👩‍💻/👩‍💻 🔜 📨 `username` & `password` 🏑 📨 💽.

& 🔌 💬 👈 🏑 ✔️ 🌟 💖 👈. `user-name` ⚖️ `email` 🚫🔜 👷.

✋️ 🚫 😟, 👆 💪 🎦 ⚫️ 👆 🎋 👆 🏁 👩‍💻 🕸.

& 👆 💽 🏷 💪 ⚙️ 🙆 🎏 📛 👆 💚.