Dec 12, 2024
(…) for very large 64-bit integers, such as randomly generated IDs, a JSON parser that converts integers into floats results in data loss. Go’s encoding/json package does this, for example.
(…)
How often does this actually happen for randomly-generated numbers?
(…)
It turns out that almost all randomly distributed int64 values are affected by round-trip data loss. Roughly, the only numbers that are safe are those with at most 16 digits (although not exactly: 9,999,999,999,999,999, for example, gets rounded up to a nice round 10 quadrillion).