parsedTransactionSubscribe

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "parsedTransactionSubscribe",
  "params": [
    {
      "programs": ["JUP6LkbZbjS1jKKwapdHNy74zcZ3tLUZoi5QNyVTaV4"],
      "instructionNames": ["route", "shared_accounts_route"],
      "accounts": {
        "include": ["So11111111111111111111111111111111111111112"],
        "roles": { "user_transfer_authority": "9xQeWvG816bUx9EPjHmaT23yvVM2ZWbrrpZb9PusVFin" }
      },
      "includeFailed": false,
      "includeCpi": true
    },
    { "commitment": "confirmed", "details": "full" }
  ]
}

import WebSocket from "ws";

const ws = new WebSocket("wss://beta.helius-rpc.com/?api-key=<API_KEY>");

ws.on("open", () => {
  ws.send(JSON.stringify({
    jsonrpc: "2.0",
    id: 1,
    method: "parsedTransactionSubscribe",
    params: [{ programs: ["JUP6LkbZbjS1jKKwapdHNy74zcZ3tLUZoi5QNyVTaV4"] }],
  }));
});

ws.on("message", (data) => {
  const msg = JSON.parse(data.toString());
  if (msg.method === "parsedTransactionNotification") {
    const { transaction, instructions, matchedIndexes } = msg.params.result.value;
    for (const i of matchedIndexes ?? instructions.keys()) {
      const ix = instructions[i];
      console.log(transaction.signature, ix.programName, ix.instructionName, ix.decoded?.args);
    }
  }
});

import asyncio, json, websockets

URL = "wss://beta.helius-rpc.com/?api-key=<API_KEY>"

async def main():
    async with websockets.connect(URL) as ws:
        await ws.send(json.dumps({
            "jsonrpc": "2.0", "id": 1, "method": "parsedTransactionSubscribe",
            "params": [{"programs": ["JUP6LkbZbjS1jKKwapdHNy74zcZ3tLUZoi5QNyVTaV4"]}],
        }))
        async for raw in ws:
            msg = json.loads(raw)
            if msg.get("method") == "parsedTransactionNotification":
                value = msg["params"]["result"]["value"]
                for i in value.get("matchedIndexes") or range(len(value["instructions"])):
                    ix = value["instructions"][i]
                    print(ix.get("programName"), ix.get("instructionName"), (ix.get("decoded") or {}).get("args"))

asyncio.run(main())

{ "jsonrpc": "2.0", "id": 1, "result": 23 }

{
  "jsonrpc": "2.0",
  "method": "parsedTransactionNotification",
  "params": {
    "subscription": 23,
    "result": {
      "context": { "slot": 430172053 },
      "value": {
        "transaction": {
          "signature": "3riSYL4HTRxgQjLayt6L2JPaDR3oaEQg1H4v3fnjUxNU...",
          "slot": 430172053,
          "blockTime": null,
          "feePayer": "6jduWNCTQzG91JGBchfGGxd55Vi5FxJCCJEV18RkXzJX",
          "fee": 5000,
          "accountKeys": ["6jduWNCT...", "..."],
          "status": "ok",
          "error": null,
          "summary": {
            "type": "swap",
            "description": "6jduWNCTQzG91JGBchfGGxd55Vi5FxJCCJEV18RkXzJX swapped 0.001 SOL for 0.183985 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v via Jupiter",
            "parsedData": {
              "type": "swap",
              "protocol": "jupiter",
              "kind": "swap",
              "in_amount": "1000000",
              "actual_out_amount": "183985",
              "input_mint": "So11111111111111111111111111111111111111112",
              "output_mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
            }
          },
          "nativeTransfers": [
            { "fromUserAccount": "6jduWNCT...", "toUserAccount": "DfXygSm4...", "amount": 1000000 }
          ],
          "tokenTransfers": [
            {
              "fromUserAccount": "6jduWNCT...",
              "toUserAccount": "AeUfFU6L...",
              "fromTokenAccount": "HLaEoW1s...",
              "toTokenAccount": "G13P9kSY...",
              "rawTokenAmount": 183985,
              "decimals": 6,
              "tokenStandard": "Fungible",
              "mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
            }
          ]
        },
        "instructions": [
          {
            "instructionIndex": 4,
            "innerInstructionIndex": null,
            "stackHeight": 1,
            "programId": "JUP6LkbZbjS1jKKwapdHNy74zcZ3tLUZoi5QNyVTaV4",
            "programName": "jupiter",
            "instructionName": "route",
            "summary": {
              "type": "swap",
              "description": "6jduWNCTQzG91JGBchfGGxd55Vi5FxJCCJEV18RkXzJX swapped 0.001 SOL for 0.183985 EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v via Jupiter",
              "parsedData": {
                "type": "swap",
                "protocol": "jupiter",
                "kind": "swap",
                "in_amount": "1000000",
                "actual_out_amount": "183985",
                "input_mint": "So11111111111111111111111111111111111111112",
                "output_mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
              }
            },
            "decoded": {
              "args": { "in_amount": "1000000", "slippage_bps": 50 },
              "accounts": [
                { "name": "user_transfer_authority", "pubkey": "9xQe...", "isSigner": true, "isWritable": false }
              ]
            }
          }
        ],
        "matchedIndexes": [8, 13]
      }
    }
  }
}