Vertigo decoder

carbon-vertigo-decoder decodes the instructions, accounts and events of the Vertigo program (vrTGoBuy5rYSxAfV3jaRJWHH6nN9WK4NRExGxsk1bCJ): 6 instructions, 1 account type, 3 events. It is generated with Codama from the program's IDL; see decoders for how decoders plug into a pipeline.

Other launchpad decoders: Boop, Meteora DBC, Moonshot, Pump.fun, Raydium Launchpad, Virtuals, Wavebreak. To decode several in one pipeline, see launchpad decoders.

The serde feature derives Serialize/Deserialize on every type, postgres adds tables and processors for Postgres, and graphql adds a schema for the GraphQL server.

Usage#

This program crawls recent Vertigo transactions from the public RPC and prints every decoded Buy instruction. Add the dependencies:

cargo add carbon-core@2.0.0 carbon-vertigo-decoder@2.0.0 carbon-rpc-transaction-crawler-datasource@2.0.0 carbon-log-metrics@2.0.0 env_logger tokio --features tokio/full

use {
    carbon_core::{
        error::CarbonResult, instruction::InstructionProcessorInputType, pipeline::Pipeline,
        processor::Processor,
    },
    carbon_log_metrics::LogMetrics,
    carbon_vertigo_decoder::{instructions::VertigoInstruction, VertigoDecoder, PROGRAM_ID},
    carbon_rpc_transaction_crawler_datasource::{ConnectionConfig, Filters, RpcTransactionCrawler},
    std::sync::Arc,
};

#[tokio::main]
async fn main() -> CarbonResult<()> {
    env_logger::init();

    // Fetches the program's recent transactions over JSON-RPC, newest first.
    let datasource = RpcTransactionCrawler::new(
        "https://api.mainnet-beta.solana.com".to_string(),
        PROGRAM_ID,
        ConnectionConfig::default(),
        Filters::new(None, None, None),
        None,
    );

    Pipeline::builder()
        .datasource(datasource)
        .metrics(Arc::new(LogMetrics::new()))
        .instruction(VertigoDecoder, InstructionLogger)
        .build()?
        .run()
        .await
}

struct InstructionLogger;

impl Processor<InstructionProcessorInputType<'_, VertigoInstruction>> for InstructionLogger {
    async fn process(
        &mut self,
        input: &InstructionProcessorInputType<'_, VertigoInstruction>,
    ) -> CarbonResult<()> {
        let signature = input.metadata.transaction_metadata.signature;
        if let VertigoInstruction::Buy { data, accounts, .. } = input.decoded_instruction {
            println!("buy {signature}: {data:?} pool={}", accounts.pool);
        }
        Ok(())
    }
}

RUST_LOG=info cargo run

Each Buy instruction prints one line with the transaction signature and the decoded Buy data. The public endpoint rate-limits requests, so the first lines can take a while; use your own RPC URL for anything beyond a test. See stream with RPC for the crawler options.

Events published with Anchor's emit_cpi! arrive as the CpiEvent instruction. Match them with VertigoInstruction::CpiEvent { data: CpiEvent::BuyEvent(event), .. } (import instructions::CpiEvent); see Events. If CpiEvent never arrives, the program logs its events with emit! instead: decode them with decode_log_events.

Decode accounts#

The transaction crawler emits transactions only. To decode accounts, use a datasource that emits account updates. This program subscribes to the program's accounts with programSubscribe on the public WebSocket endpoint and prints every decoded Pool account as it changes. Add the datasource and the Solana RPC types it takes:

cargo add carbon-rpc-program-subscribe-datasource@2.0.0 solana-client@4.2.2

use {
    carbon_core::{
        account::AccountProcessorInputType, error::CarbonResult, pipeline::Pipeline,
        processor::Processor,
    },
    carbon_log_metrics::LogMetrics,
    carbon_vertigo_decoder::{accounts::VertigoAccount, VertigoDecoder, PROGRAM_ID},
    carbon_rpc_program_subscribe_datasource::{Filters, RpcProgramSubscribe},
    solana_client::rpc_config::{RpcAccountInfoConfig, RpcProgramAccountsConfig, UiAccountEncoding},
    std::sync::Arc,
};

#[tokio::main]
async fn main() -> CarbonResult<()> {
    env_logger::init();

    // Streams every change to an account owned by the program (programSubscribe).
    let config = RpcProgramAccountsConfig {
        account_config: RpcAccountInfoConfig {
            encoding: Some(UiAccountEncoding::Base64),
            ..Default::default()
        },
        ..Default::default()
    };
    let datasource = RpcProgramSubscribe::new(
        "wss://api.mainnet-beta.solana.com".to_string(),
        Filters::new(PROGRAM_ID, Some(config)),
    );

    Pipeline::builder()
        .datasource(datasource)
        .metrics(Arc::new(LogMetrics::new()))
        .account(VertigoDecoder, AccountLogger)
        .build()?
        .run()
        .await
}

struct AccountLogger;

impl Processor<AccountProcessorInputType<'_, VertigoAccount>> for AccountLogger {
    async fn process(
        &mut self,
        input: &AccountProcessorInputType<'_, VertigoAccount>,
    ) -> CarbonResult<()> {
        let VertigoAccount::Pool(pool) = &input.decoded_account.data;
        println!("pool {}: {pool:?}", input.metadata.pubkey);
        Ok(())
    }
}

RUST_LOG=info cargo run

Each update to a Pool account prints its address and decoded fields; the program runs until you stop it. Cargo resolves solana-client to 4.2.2, the exact version the datasource pins, so both use the same RpcProgramAccountsConfig type. To load every existing account once instead of streaming changes, see load account state.

Instructions#

Variants of VertigoInstruction. Each is VertigoInstruction::<Variant> { program_id, data, accounts }, where data and accounts are the types listed under the variant, exported from carbon_vertigo_decoder::instructions. Discriminators are the leading bytes of the instruction data, in hex.

How an instruction decodes. The decoder returns a variant only when all of these hold; otherwise the instruction is skipped and no processor is called:

1. The instruction's program ID is vrTGoBuy5rYSxAfV3jaRJWHH6nN9WK4NRExGxsk1bCJ.
2. The data starts with the variant's discriminator, and the rest deserializes into its data type.
3. The instruction has at least as many accounts as the variant requires (the "Required accounts" count under each variant).

Accounts. They are matched by position, in the order listed. An account marked optional is None only when the instruction ends before it; Anchor programs pass the program ID as a placeholder for an omitted optional account, so check for Some(PROGRAM_ID) too. Accounts after the listed ones are in accounts.remaining as AccountMetas. The decoder doesn't record whether an account signed or was writable: read that from input.raw_instruction.accounts[i].is_signer and .is_writable, which follow the same order. It doesn't check signer, writable, owner or PDA constraints either; the program enforced those when the transaction executed, so a decoded instruction from a successful transaction already satisfied them.

Buy#

Discriminator 66063d1201daebea · data Buy · accounts BuyInstructionAccounts.

Required accounts: 13; extras go to remaining.

Fields of BuyInstructionAccounts, in account order:

Claim#

Discriminator 3ec6d6c1d59f6cd2 · data Claim · accounts ClaimInstructionAccounts.

No data fields.

Required accounts: 7; extras go to remaining.

Fields of ClaimInstructionAccounts, in account order:

Create#

Discriminator 181ec828051c0777 · data Create · accounts CreateInstructionAccounts.

Required accounts: 13; extras go to remaining.

Fields of CreateInstructionAccounts, in account order:

QuoteBuy#

Discriminator 5309e76e921f280c · data QuoteBuy · accounts QuoteBuyInstructionAccounts.

Required accounts: 6; extras go to remaining.

Fields of QuoteBuyInstructionAccounts, in account order:

QuoteSell#

Discriminator 05b231ce8ce78391 · data QuoteSell · accounts QuoteSellInstructionAccounts.

Required accounts: 6; extras go to remaining.

Fields of QuoteSellInstructionAccounts, in account order:

Sell#

Discriminator 33e685a4017f83ad · data Sell · accounts SellInstructionAccounts.

Required accounts: 13; extras go to remaining.

Fields of SellInstructionAccounts, in account order:

CpiEvent#

Anchor self-CPI that carries one of the program's events. data is the CpiEvent enum.

Discriminator e445a52e51cb9a1d · data CpiEvent · accounts CpiEventInstructionAccounts.

Required accounts: 2; extras go to remaining.

Fields of CpiEventInstructionAccounts, in account order:

Accounts#

Variants of VertigoAccount. Each wraps a boxed struct from carbon_vertigo_decoder::accounts::<module>. decode_account only considers accounts owned by PROGRAM_ID and returns the first variant that matches.

Pool#

Discriminator f19a6d0411b16dbc · accounts::pool::Pool.

Events#

Variants of instructions::CpiEvent, decoded from the CpiEvent instruction. Each wraps a struct from carbon_vertigo_decoder::events::<module>. The discriminator is the 8-byte event discriminator that follows the e445a52e51cb9a1d CPI-event tag.

BuyEvent#

Discriminator 67f4521f2cf57777 · events::buy_event::BuyEventEvent.

PoolCreated#

Discriminator ca2c295868dc9d52 · events::pool_created::PoolCreatedEvent.

SellEvent#

Discriminator 3e2f370aa503dc2a · events::sell_event::SellEventEvent.

Types#

Types used by the instructions, accounts and events above, exported from carbon_vertigo_decoder::types.

BuyEvent#

Struct types::BuyEvent. Same fields as the BuyEvent event.

CreateParams#

Struct types::CreateParams.

FeeParams#

Struct types::FeeParams.

PoolCreated#

Struct types::PoolCreated. Same fields as the PoolCreated event.

SellEvent#

Struct types::SellEvent. Same fields as the SellEvent event.

SwapParams#

Struct types::SwapParams.

SwapResult#

Struct types::SwapResult.