Deployed Contracts From a User Address

Question

I am trying to fetch all the programs deployed by a given address. I went through the Solana documentation but I could not figure out how I can do it. I am considering to use solscan.io to fetch the transactions but I do not know how to process that data. It is very different than Ethereum. Does anyone know how I can achieve this?

Answer 1

Question could be what is the end goal. The programs are upgradable (by default https://medium.com/coinmonks/solana-internals-part-2-how-is-a-solana-deployed-and-upgraded-d0ae52601b99) in Solana and if you say "deployed by a given address" then you will quite probably need to search the history of transactions and check what account was the fee payer or considered as upgradable authority at the time of deployment.

If you search the programs that belongs to particular upgradable authority then you can use the general getProgramAccounts call (https://docs.solana.com/api/http#getprogramaccounts, with more details at https://solanacookbook.com/guides/get-program-accounts.html#facts).

As Solana uses the account model (https://docs.solana.com/developing/programming-model/accounts) then we know the program is an account with specific owner. Owner of all standard programs is the address of BPFLoaderUpgradeab1e11111111111111111111111. The program BPFLoaderUpgradeab1e11111111111111111111111 works with several states: Uninitialized, Buffer, Program, Data (https://github.com/solana-labs/solana/blob/v1.15.0/sdk/program/src/bpf_loader_upgradeable.rs#L29).

Let's check an example of Marinade Staking program https://explorer.solana.com/address/MarBmsSgKXdrN1egZf5sqe1TMai9K1rChYNDJgjq7aD We can see the "Program Account" (Program), having associated "Program Executable Data Account" (ProgramData). The upgrade authority is "551FBXSXdhcRDDkdcb3ThDRg84Mwe5Zs6YjJ1EEoyzBp" (considered as an owner or who deployed).

The structure of the Account with executable data (i.e., the ProgramData) owned by the BPFLoader program can be observed in source code https://github.com/solana-labs/solana/blob/v1.15.0/sdk/program/src/bpf_loader_upgradeable.rs#L29

ProgramData {
  slot: u64,
  upgrade_authority_address: Option<Pubkey>,
},

From that we can calculate the offset and data for the filter. The data structure of the ProgramData is:

4 bytes for type,
8 bytes for slot
1 byte for `Option`
32 bytes for Pubkey

The type ProgramData is fourth in the enum thus on index 3. Getting the base58 of [3,0,0,0] we get 5Sxr3. Then the offset for the searching upgradable authority key is 4 + 8 + 1.

With following call we can get account of type ProgramData where upgradable authority is the given Pubkey.

curl https://api.mainnet-beta.solana.com -X POST -H "Content-Type: application/json" -d '
  {
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getProgramAccounts",
    "params": [
      "BPFLoaderUpgradeab1e11111111111111111111111",
      {
        "encoding": "base64",
        "filters": [
          {
            "memcmp": {
              "offset": 0,
              "bytes": "5Sxr3"
            }
          },
          {
            "memcmp": {
              "offset": 13,
              "bytes": "551FBXSXdhcRDDkdcb3ThDRg84Mwe5Zs6YjJ1EEoyzBp"
            }
          }
        ]
      }
    ]
  }
'