Show all Dates data between two dates; if no row exists for particular date then show zero in all columns using sequelize

Question

folks I m stuck in logical or syntax problem, I have tried so many thing from stack. But I didn't get the exact solution on my Problem.

Problem

I have table abc with following columns

╔════╦═════════╦═════════════════════╦═══════╗
║ id ║ success ║ transactionTime     ║ value ║
╠════╬═════════╬═════════════════════╬═══════╣
║ 1  ║ 1       ║ 2018/09/12 10:50:00 ║ 10    ║
╠════╬═════════╬═════════════════════╬═══════╣
║ 2  ║ 0       ║ 2018/09/13 10:58:00 ║ 12    ║
╠════╬═════════╬═════════════════════╬═══════╣
║ 3  ║ 1       ║ 2018/09/13 10:55:00 ║ 34    ║
╚════╩═════════╩═════════════════════╩═══════╝

I wanted Show All the data between two dates; if no row exists for particular date then show zero in all columns using sequelize ;

I understand with the SQL but not getting how to do with Sequilze ORM

I have Tried this

startDate = moment().subtract(7, 'days').format('YYYY-MM-DD 00:00:00');
endDate = moment().format('YYYY-MM-DD 23:59:59');  
const Record = await db.abc.count({
        where: {
         transactionTime: {
            $between: [
              startDate, 
              endDate,
            ],
          },
        },
        attributes: [[sequelize.fn('DATE_FORMAT', sequelize.col('transactionTime'), '%Y-%m-%d'), 'day']],
        group: [sequelize.fn('DAY', sequelize.col('transactionTime'))],
      });

I Am getting the following Output

day              Count
2018/09/12        1
2018/09/13        2

Expected Output :

day              Count
2018/09/08        0
2018/09/09        0
2018/09/10        0
2018/09/11        0
2018/09/12        1
2018/09/13        2

Help me out, I am new in sequelize.