How to use bigint safely with Supabase JS

Question

Postgres' bigint type holds 64 bit integers. But the Supabase JS library returns those values as JS numbers, which cannot safely store 64 bit integers AFAIK. What would be the correct way to handle 64 bit integers in Supabase?

Answer 1

You are correct. This is because numbers in JS are float64, so if your number is more than Number.MAX_SAFE_INTEGER === 9007199254740991 . It won't be represented correctly.

An alternative is to cast it to text during the call & manually convert it:

supabase.from('table_name').select('id, num::text');
BigInt(data);