How can I have is null condition in typeorm find options?

If someone is looking for NOT NULL, it would be like this:

import { IsNull, Not } from "typeorm";

return await getRepository(User).findOne({
    where: { 
      username: Not(IsNull())
    }
});

Another way is you can use IsNull() function, for example:

import { IsNull } from "typeorm";
return await getRepository(User).findOne({
    where: { 
      username: IsNull()
    }
});

You can use QueryBuilder for this purpose:

const users = await userRepository.createQueryBuilder("user")
     .where("user.name IS NULL")
     .getMany();