CODEWITHSUNDEEP
javascriptnode.js
kato
kato

Reputation: 196

How to check if data insert is not null with NodeJs?

I have a controller that when i insert data into the database it always inserted. Now i wanna check that if the data i create is null is must report an error. Here is my code:

// create new car
export async function createCar (req, res) {
    const car = new Car({
      car_id: id,
      name: req.body.name,
      color: req.body.color,
      brand: req.body.brand,
    });
    
    return car
      .save()
      .then((newCar) => {
        return res.status(201).json({
          success: true,
          message: 'New car created successfully',
          Car: newCar,
        });
      })
      .catch((error) => {
          console.log(error);
        res.status(500).json({
          success: false,
          message: 'Server error. Please try again.',
          error: error.message,
        });
      });
  }

And i check on postman even i let Name is NULL is still inserted. Furthermore, how can i check that COLOR, BRAND if it's null must also report an error. Please help me.

enter image description here

Upvotes: 1

Views: 599

Answers (2)

kato
kato

Reputation: 196

For validate before insert

// Validate request
if (!req.body.name) 
{
  res.status(400).send
  ({
      message: "Name can not be empty!"
  });
  return;
} else if (!req.body.color)
{
   res.status(400).send
   ({
       message: "Color can not be empty!"
   });
    return;
} else if (!req.body.brand) 
{
    res.status(400).send({
       message: "Brand can not be empty!"
    });
    return;
}

Upvotes: 0

Smit Gajera
Smit Gajera

Reputation: 1039

Kato, please follow my boilerplate. I created it with the best practices, and it also provides high-end JOI request validation.

A boilerplate for building production-ready RESTful APIs using Node.js, ExpressJs, Mongoose and Joi (Request Validation)

Node-Express-Mongoose-Joi

Upvotes: 1

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