Get all balances for token mint

Question

How do I get all token balances for a specific mint? I want a list of all owners and their balance.

I would also like to do this at a historical point in time using a snapshot.

Answer 1

This is a very tricky problem with a few solutions.

Note that this is impossible using the normal JSON RPC API, since no historical account data is served through the RPC.

If you want to get the current owners and balances for a mint, you can do getProgramAccountshttps://docs.solana.com/api/http#getprogramaccounts with the following params:

"params": [
      "<TOKEN_PROGRAM_ID_GOES_HERE>",
      {
        "filters": [
          {
            "dataSize": 165
          },
          {
            "memcmp": {
              "offset": 0,
              "bytes": "<MINT_AS_BASE_58_GOES_HERE>"
            }
          }
        ]
      }
    ]

To do it from a snapshot, you can hack solana-ledger-tool to do something similar. I have a branch which searches through all programs at a snapshot, which you could certainly hack to work with tokens too: https://github.com/joncinque/solana/tree/lt-gpa