Sequelize optional where clause parameters?

Question

This is one thing that really annoys me! I have to write 2 different functions for almost the same query!

Say I\'ve got an API that returns posts that a

Answer 1

You could build the where object beforehand. Here's a simple example

// Get typeIds from whatever source you have

// Here's an example
var typeIds = [1, 2, 3];

// Or you could try this to build a query without typeIds
// var typeIds = [];

var whereCondition = {};

if (typeIds.length > 0) {
    whereCondition['$or'] = typeIds.map(function(id) {
        return {
            typeId: id
        };
    })
};

whereCondition['cityId'] = 1;

console.log(whereCondition);

Post.findAll(whereCondition).then(function(posts) {
    // The rest of your logic
});

Answer 2

i had some similar situation , and i used template literals to define empty string as default if the field was undefined.

User.findOne({
where: {
  [Op.or]: [
    { email: `${req.body.email || ""}` },
    { username: `${req.body.username || ""}` },
  ],
},

})