How to fetch all PDAs owned by a program

Question

Is there a way to fetch all PDA's owned by a Solana program?

Answer 1

The Solana cookbook has a great article about this RPC call that solves your problem. Bear in mind that this is an expensive request for the RPC nodes to fulfill, so please be gentle!

https://solanacookbook.com/guides/get-program-accounts.html#facts

Answer 2

adding to @HelmetFace answer, there are several constraints to keep in mind while using getProgramAccounts

1. not paginated, so calls to programs with huge number of accounts might not complete, and can return truncated results. use filters where applicable....
2. and filtering is a bit primitive ( uses memcmp to do byte wise comparison ) and not very expressive.