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AI Features

Implementing Sign-In

Explore how to implement a secure sign-in process within a NestJS application. Learn to define user credential validation, authenticate users with encrypted passwords, handle errors for invalid logins, and validate access for your backend app securely.

After signing up for our virtual library, the user’s next step is to sign in. In this lesson, we will implement the sign-in process to maintain secure authentication, ensuring the user’s interactions with our application are secure.

Sign-in form
Sign-in form

Defining SignInDTO

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