up:: [[Boilerplate Code]]
X:: [[JavaScript]]
tags:: #boilerplate 

# JWT Class Boilerplate

## Here is a simple example of how you might use JSON Web Tokens (JWTs) for user management in a TypeScript project:

```tsx
import jwt from 'jsonwebtoken';

class User {
  private id: number;
  private username: string;
  private password: string;

  constructor(id: number, username: string, password: string) {
    this.id = id;
    this.username = username;
    this.password = password;
  }

  public getId(): number {
    return this.id;
  }

  public getUsername(): string {
    return this.username;
  }

  public setUsername(username: string): void {
    this.username = username;
  }

  public getPassword(): string {
    return this.password;
  }

  public setPassword(password: string): void {
    this.password = password;
  }

  public generateJWT(): string {
    const tokenData = {
      id: this.id,
      username: this.username,
    };

    return jwt.sign(tokenData, process.env.JWT_SECRET);
  }
}
```

In this example, the **`User`** class has three private properties: **`id`**, **`username`**, and **`password`**. The class has a constructor that accepts values for **`id`**, **`username`**, and **`password`**, and assigns them to the respective properties. The class also has methods for accessing and modifying these properties, as well as a method for generating a JSON Web Token (JWT) for the user. The **`generateJWT`** method uses the **`jsonwebtoken`** library to sign a JSON object containing the user's **`id`** and **`username`** properties, using a secret key stored in the **`JWT_SECRET`** environment variable. This JWT can then be sent to the client and used to authenticate and authorize the user in subsequent requests.