A developer implements authentication in a NestJS backend using Passport. The process includes installing dependencies, creating an authentication module, defining a local strategy for email and password verification with bcrypt, implementing guards, and testing the login route with Postman to ensure secure access control.
Length 17:04
Captions English (Generated), Spanish (Auto-translated), French (Auto-translated), Korean (Auto-translated), Portuguese (Auto-translated), Vietnamese (Auto-translated) #nestjs #authentication #passport #jwt #backend #coding #programming #software development #web development #api
0:00 All right, so we're ready to get started in 0:02 implementing authentication into our 0:04 NestJS backend. To do this, we're gonna utilize Passport, which 0:08 is the most popular Node.js authentication library. 0:11 So Passport's gonna allow us to write different strategies for each method of 0:15 authentication. We're gonna create two strategies, 0:19 one that will 0:19 allow us to take in a user's email and password, and will give them 0:23 back a JWT, or a JSON Web Token, which 0:27 essentially will authenticate the user so that they can provide that 0:30 JWT in subsequent requests, and then we'll go ahead and 0:34 actually verify that that JWT is valid using a 0:38 secure secret key on our backend server, which is gonna be the same 0:42 key that actually generates the, the JSON Web Token. 0:45 We can use it to verify the JSON Web Token as well. 0:48 So this is a very common method for authentication, and is the most secure 0:52 way to ensure that our backend will only be available to 0:55 authenticated users. We're also gonna be able to integrate this 0:59 with our 0:59 Next.js UI very easily. So let's go ahead and get 1:03 started by installing the dependencies we'll need. 1:06 Now, in our backend, I'll go ahead and pnpm install 1:10 nestjs/passport, 1:17 passport, and passport-local, 1:21 as well as 1:22 @nestjs/jwt, and 1:26 finally passport-jwt. So these are all gonna be the 1:30 dependencies we need to support authentication 1:33 and integrate Passport with NestJS. 1:36 Finally, we'll go ahead and install some development 1:40 dependencies. So we'll need the types 1:43 @/passport-jwt, as well as 1:47 @types for passport-local. 1:52 So now that we have all these dependencies, I'll go ahead 1:55 and start my server 1:56 back up. 1:57 So now back in VS Code, I've opened up a terminal for our backend 2:01 so that 2:01 we can use the Nest CLI and generate a new auth 2:05 module where we'll keep all of our auth related code.
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