Nodejs-Assignment-8

 Create following routes in User API

 1. Get user by username (Password should not be included)

 2. Get all users (Passwords should not be included)

 3. Login user

Website links:

https://jwt.io/

https://www.npmjs.com/

Sample code for User login:

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userApp.post('/user-login',expressAsyncHandler(async(request,response)=>{

//get userCollectionObj

const userCollectionObj = request.app.get("userCollectionObj");

//get user credentials from req

const userCredObj=request.body;

//verify username

let userOfDB=await userCollectionObj.findOne({username:userCredObj.username})

//if username is invalid

if(userOfDB===null){

response.status(200).send({message:"Invalid username"})

}

//if username is valid

else{

//verify password

let isEqual=await bcryptjs.compare(userCredObj.password,userOfDB.password)

//if passwords not matched

if(isEqual===false){

response.status(200).send({message:"Invalid password"})

}

//if passwords matched

else{

//create a JWT token

let jwtToken=jwt.sign({username:userOfDB.username},'abcdef',{expiresIn:20})

//send token in response

response.status(200).send({message:"Valid user",token:jwtToken})

}

}

}))