Refactor If Statements.

[anuraghazra]

We can refactor these if statements with Guard Clauses

rest-api-nodejs-mongodb/controllers/AuthController.js

Lines 114 to 160 in 8191ce9

	if (!errors.isEmpty()) {
	return apiResponse.validationErrorWithData(res, "Validation Error.", errors.array());
	}else {
	UserModel.findOne({email : req.body.email}).then(user => {
	if (user) {
	//Compare given password with db's hash.
	bcrypt.compare(req.body.password,user.password,function (err,same) {
	if(same){
	//Check account confirmation.
	if(user.isConfirmed){
	// Check User's account active or not.
	if(user.status) {
	let userData = {
	_id: user._id,
	firstName: user.firstName,
	lastName: user.lastName,
	email: user.email,
	};
	//Prepare JWT token for authentication
	const jwtPayload = userData;
	const jwtData = {
	expiresIn: process.env.JWT_TIMEOUT_DURATION,
	};
	const secret = process.env.JWT_SECRET;
	//Generated JWT token with Payload and secret.
	userData.token = jwt.sign(jwtPayload, secret, jwtData);
	return apiResponse.successResponseWithData(res,"Login Success.", userData);
	}else {
	return apiResponse.unauthorizedResponse(res, "Account is not active. Please contact admin.");
	}
	}else{
	return apiResponse.unauthorizedResponse(res, "Account is not confirmed. Please confirm your account.");
	}
	}else{
	return apiResponse.unauthorizedResponse(res, "Email or Password wrong.");
	}
	});
	}else{
	return apiResponse.unauthorizedResponse(res, "Email or Password wrong.");
	}
	});
	}
	} catch (err) {
	return apiResponse.ErrorResponse(res, err);
	}
	}];

[kelostrada]

no shit XD