sns-sdk 1.6.0

The Rust SDK provides everything you need for resolving domain ownership and records within the Solana Name Service (SNS)
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150

use solana_client::rpc_client::RpcClient;
use solana_program::{message::Message, pubkey::Pubkey, sysvar};
use solana_sdk::transaction::Transaction;
use spl_associated_token_account::get_associated_token_address;

use crate::{
    derivation::{get_domain_key, get_reverse_key, ROOT_DOMAIN_ACCOUNT},
    error::SnsError,
    register::{
        create::{Accounts, Params},
        get_register_instruction, PYTH_MAPPING_ACC, PYTH_PRICE_PRODUCT_ACCOUNTS, REFERRERS,
        REGISTER_PROGRAM_ID, USDC_MINT, VAULT_OWNER,
    },
};

pub fn register_domain_name(
    rpc_client: &RpcClient,
    name: &str,
    space: u32,
    buyer: &Pubkey,
    buyer_token_account: &Pubkey,
    mint: Option<&Pubkey>,
    referrer_key: Option<&Pubkey>,
) -> Result<Transaction, SnsError> {
    let central_state =
        Pubkey::find_program_address(&[REGISTER_PROGRAM_ID.as_ref()], &REGISTER_PROGRAM_ID).0;
    let name_account = get_domain_key(name)?;
    let reverse_lookup_account = get_reverse_key(name)?;
    let derived_state =
        Pubkey::find_program_address(&[name_account.as_ref()], &REGISTER_PROGRAM_ID).0;
    let referrer_idx = if let Some(referrer) = referrer_key {
        REFERRERS
            .iter()
            .enumerate()
            .find_map(|(i, k)| if k == referrer { Some(i as u16) } else { None })
    } else {
        None
    };
    let mint = mint.unwrap_or(&USDC_MINT);
    let mut instructions = vec![];
    let referrer_token_account = if referrer_idx.is_some() {
        let referrer_token_account =
            spl_associated_token_account::get_associated_token_address(referrer_key.unwrap(), mint);
        let account = rpc_client
            .get_account_with_commitment(&referrer_token_account, rpc_client.commitment())?
            .value;
        if account.is_none() {
            let create_account_instruction =
                spl_associated_token_account::instruction::create_associated_token_account(
                    buyer,
                    &referrer_token_account,
                    mint,
                    &spl_token::ID,
                );
            instructions.push(create_account_instruction);
        }
        Some(referrer_token_account)
    } else {
        None
    };
    let (pyth_price_account, pyth_product_account) = PYTH_PRICE_PRODUCT_ACCOUNTS
        .iter()
        .find_map(|(m, price, product)| {
            if m == mint {
                Some((price, product))
            } else {
                None
            }
        })
        .ok_or(SnsError::UnsupportedMint)?;
    let vault = get_associated_token_address(&VAULT_OWNER, mint);
    let instruction = get_register_instruction(
        REGISTER_PROGRAM_ID,
        Accounts {
            naming_service_program: &spl_name_service::ID,
            root_domain: &ROOT_DOMAIN_ACCOUNT,
            name: &name_account,
            reverse_lookup: &reverse_lookup_account,
            system_program: &Pubkey::default(),
            central_state: &central_state,
            buyer,
            buyer_token_source: buyer_token_account,
            pyth_mapping_acc: &PYTH_MAPPING_ACC,
            pyth_product_acc: pyth_product_account,
            pyth_price_acc: pyth_price_account,
            vault: &vault,
            spl_token_program: &spl_token::ID,
            rent_sysvar: &sysvar::rent::ID,
            state: &derived_state,
            referrer_account_opt: referrer_token_account.as_ref(),
        },
        Params {
            name: name.to_owned(),
            space,
            referrer_idx_opt: referrer_idx,
        },
    );
    instructions.push(instruction);
    let message = Message::new(&instructions, Some(buyer));
    let transaction = Transaction::new_unsigned(message);
    Ok(transaction)
}

#[cfg(test)]
mod test {
    use super::*;
    use crate::register::FIDA_MINT;
    use crate::utils::test::generate_random_string;
    use dotenv::dotenv;

    #[test]
    fn test_registration() {
        dotenv().ok();
        let client = RpcClient::new(std::env::var("RPC_URL").unwrap());
        let mut tx = register_domain_name(
            &client,
            &generate_random_string(10),
            1_000,
            &VAULT_OWNER,
            &get_associated_token_address(&VAULT_OWNER, &FIDA_MINT),
            Some(&FIDA_MINT),
            None,
        )
        .unwrap();
        let blockhash = client.get_latest_blockhash().unwrap();
        tx.message.recent_blockhash = blockhash;
        let res = client.simulate_transaction(&tx).unwrap();
        assert!(res.value.err.is_none())
    }

    #[test]
    fn test_registration_ref() {
        dotenv().ok();
        let client = RpcClient::new(std::env::var("RPC_URL").unwrap());
        let mut tx = register_domain_name(
            &client,
            &generate_random_string(10),
            1_000,
            &VAULT_OWNER,
            &get_associated_token_address(&VAULT_OWNER, &FIDA_MINT),
            Some(&FIDA_MINT),
            Some(&REFERRERS[2]),
        )
        .unwrap();
        let blockhash = client.get_latest_blockhash().unwrap();
        tx.message.recent_blockhash = blockhash;
        let res = client.simulate_transaction(&tx).unwrap();
        assert!(res.value.err.is_none())
    }
}