The Death of JSON in Backend: Why I migrated my entire stack to gRPC and Protobuf

I’ll start this post with a confession that might earn me some enemies: I hate JSON.

It’s not an irrational hate, the kind that appears out of nowhere. It’s a hate built, brick by brick, over years of debugging malformed payloads, fields that should have been numbers but arrived as strings, and that classic null where you expected an empty array. JSON is the digital equivalent of a phone conversation with your grandmother: you think you understood what she said, but when you get there, the carrot cake didn’t have that expected chocolate frosting (Brazilians will understand).