# assignRoleToUser()

This function is used for assigning roles to users within a system. Roles define the level of access or permissions that a user has within an application or system. For example, roles could include "ADMIN", "USER", "MANAGER", etc., each granting different levels of privileges.

> Here's an example:

```tsx
import { createBackendFunction, data, utils } from "@magicjs.dev/backend"

export default createBackendFunction(
  async function (name, username, password, otp, hashedOtp) {
    const userDb = data("users")

    const op = await userDb.insertOne({
      name,
      username,
      password: utils.hash(password),
    })
    await utils.assignRoleToUser(String(op.insertedId), "ADMIN")
    return { message: "New user added" }
  },
)
```

[Click here to refer GitHub.](https://github.com/skyslit/magicjs.dev/blob/main/packages/backend/src/utils.ts#L28)


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