Skip to main content
solanaInstructionDecoder() bundles a Solana instruction query with a decoding transform into a single reusable module. Pass the result as an output to solanaPortalStream: 
import * as orcaWhirlpool from './abi/orca_whirlpool'
import { solanaInstructionDecoder, solanaPortalStream } from '@subsquid/pipes/solana'

const stream = solanaPortalStream({
  portal: 'https://portal.sqd.dev/datasets/solana-mainnet',
  outputs: {
    orcaWhirlpool: solanaInstructionDecoder({
      range: { from: 340_000_000 },
      programId: orcaWhirlpool.programId,
      instructions: {
        swap: orcaWhirlpool.instructions.swap,
        swapV2: orcaWhirlpool.instructions.swapV2,
      },
    }),
  },
})

for await (const { data } of stream) {
  console.log(`parsed ${data.orcaWhirlpool.swap.length} swaps`)
}
solanaInstructionDecoder() can:
  • Fetch from one or multiple programs — pass a single address or an array to programId.
  • Filter by instruction type — only instructions whose discriminator matches one of the entries in instructions are fetched and decoded.
  • Handle decode errors with a custom onError callback instead of letting them propagate.
See the solanaInstructionDecoder() reference for all parameters.

​
Generating a typed ABI module

Typed ABI modules for Solana programs are generated from Anchor IDL files by @subsquid/solana-typegen. Each generated module exports typed decode functions, so decoded instruction field types are statically known at compile time — you get precise type checking and IDE autocompletion across the entire pipeline. Install: 
npm install -D @subsquid/solana-typegen

​
From a local IDL file

npx squid-solana-typegen src/abi whirlpool.json
The output module name is derived from the filename (whirlpool). Override it with a #name fragment: 
npx squid-solana-typegen src/abi whirlpool.json#orca_whirlpool

​
From a program address

For Anchor programs that publish their IDL on-chain, pass the program address directly: 
npx squid-solana-typegen src/abi whirLbMiicVdio4qvUfM5KAg6Ct8VwpYzGff3uctyCc#orca_whirlpool
The tool tries two sources in parallel: the on-chain IDL account (defaulting to Solana mainnet) and the SolanaFM IDL database. It fails only if both sources fail. Use --solana-rpc-endpoint to point at a different RPC endpoint: 
npx squid-solana-typegen \
  --solana-rpc-endpoint https://my-rpc.example.com \
  src/abi \
  whirLbMiicVdio4qvUfM5KAg6Ct8VwpYzGff3uctyCc#orca_whirlpool
Without the #name fragment the program address itself becomes the module name.

​
From a URL

npx squid-solana-typegen src/abi https://example.com/whirlpool.json#orca_whirlpool

​
Generated module structure

For an input named orca_whirlpool, the tool creates: 
src/abi/
  abi.support.ts              # shared runtime, generated once per output dir
  orca_whirlpool/
    index.ts                  # re-exports + programId
    instructions.ts           # one typed constant per instruction
    events.ts                 # one typed constant per event (if any)
    types.ts                  # shared struct types
Each entry in instructions.ts is a TypeScript interface (the decoded shape) alongside a constant carrying the discriminator and decode logic: 
export interface CloseBundledPosition {
    bundleIndex: number
}

export const closeBundledPosition = instruction(
    { d8: '0x2924d8f51b556743' },
    {
        bundledPosition: 0,
        positionBundle: 1,
        positionBundleTokenAccount: 2,
        positionBundleAuthority: 3,
        receiver: 4,
        whirlpoolProgram: 5,
    },
    struct({ bundleIndex: u16 })
)
The d8 discriminator and account index map are embedded in the constant — solanaInstructionDecoder() reads them automatically to build the source query filter.

​
Accessing decoded data

The keys of the instructions map become field names in the decoded output batch. Each field is an array of decoded instruction objects: 
for await (const { data } of stream) {
  for (const ins of data.orcaWhirlpool.swap) {
    const { accounts, data: fields } = ins.instruction
    console.log(accounts.tokenAuthority, fields.amount)
  }
}
See the decoded instruction structure reference for the full field list.