The credix permissioned market is a "permissioned market" on Serum via a proxy program. It is a regular serum market with the additional checks for CIVIC pass, Credix Pass. Along with these checks it also sends an instruction to the credix Program to thaw LP tokens before calling the dex instruction and freeze them again right after that.
This is a dummy program for Credix market, it contains instructions to initialize market, deposit funds and get LP tokens, create an credix pass, update credix pass. Anyone can initiate these instructions. It also contains instruction to freeze LP Tokens and thaw LP tokens. For calling them the transaction must be signed by the signing-authority PDA of credix-permissioned-market program. This way we make sure that no one can thaw their LP tokens and transfer them to a public key that doesn't have Credix pass or civic pass.
This is the proxy program, we can created it with permissioned package. Along with the proxy instructions to the dex program it contains a instruction to create the signing-authority PDA. The programs's main role is to create a thaw LP instruction before calling the dex instruction and a freeze LP instruction after that.
Unfortunately crates.io version of the package was outdated, So we had to clone it locally and do changes in cargo.toml to make it work. We also had to adjust the order in which the calls the made. You can find the local package in root/permissioned directory.
You can run the following command to test the programs:
anchor testTo deploy all the required program and start the solana test validator:
anchor localnet
Setup credix-market and list on serum dex program:
ANCHOR_WALLET=~/.config/solana/id.json ANCHOR_PROVIDER_URL=http://127.0.0.1:8899 npx ts-node ./setup/setup.ts
You can find the program deployed on devnet here
SERUM DEX program : A3KCE92wXZMtGGJT6XYL2KHva58VXvWkhcqfJ6Q5JEia
Credix program : 8HE5gUxtvXEpHFjaJW3SNcZe2vXEusKWcWJWoF8aJQ8
Permissioned Market Program : FYXohVSAyeUykuBDGYpSohgZb4y6DFmNJBjcQrML8ix6
Serum Market Public key: GpgNE1tn2d2wpMxGuYZdGYdEAqZwHi3U9yWjAe3hFdVV