Is it possible to represent this data using TS Interfaces?

[toxic sinew]

Is it possible in TS to use types the following data structure??

{
  "productCount": {
    "product1": 9,
    "product2": 1,
    "product3": 10
  }
}

the key will be ALWAYS a string and the value will be ALWAYS a number

[tribal arch]

That's what the Record utility type is for
Record<string, number>

Your whole object would be typed as

type Something = {
  productCount: Record<string, number>
}

[toxic sinew]

perfect! thank you sir!