npm install @gorillapool/js-junglebus

import { JungleBusClient, ControlMessageStatusCode } from '@gorillapool/js-junglebus';

const client = new JungleBusClient("junglebus.gorillapool.io", {
  useSSL: true,
  onConnected(ctx) { 
    console.log("Connected", ctx); 
  },
  onConnecting(ctx) { 
    console.log("Connecting", ctx); 
  },
  onDisconnected(ctx) { 
    console.log("Disconnected", ctx); 
  },
  onError(ctx) { 
    console.error("Error", ctx); 
  }
});

// Subscribe to a subscription ID
const subscriptionId = "your-subscription-id";
const fromBlock = 750000;

client.Subscribe(
  subscriptionId,
  fromBlock,
  (tx) => {
    // Confirmed transaction received
    console.log("TX:", tx.id, "at height", tx.block_height);
    console.log("Output types:", tx.output_types);
    console.log("Contexts:", tx.contexts);
  },
  (status) => {
    // Status updates
    if (status.statusCode === ControlMessageStatusCode.BLOCK_DONE) {
      console.log("Block done:", status.block);
    } else if (status.statusCode === ControlMessageStatusCode.WAITING) {
      console.log("Waiting for new block...");
    } else if (status.statusCode === ControlMessageStatusCode.REORG) {
      console.log("Reorg triggered:", status);
    }
  },
  (error) => {
    // Subscription errors
    console.error("Subscription error:", error);
  },
  (mempoolTx) => {
    // Unconfirmed mempool transaction
    console.log("Mempool TX:", mempoolTx.id);
  }
);

// Last parameter = true for lite mode
client.Subscribe(
  subscriptionId, 
  fromBlock, 
  onTx, 
  onStatus, 
  onError, 
  onMempool, 
  true // Lite mode - only txid and block height
);

{
  "id": "e597af34eb78b599b7d458110a3cc602a40dedd020db684992b40926217612a4",
  "block_hash": "000000000000000006296f1e5437dd6c01b9b5471691a89a9c7d8e9f06920da5",
  "block_height": 750000,
  "block_time": 1658878267,
  "block_index": 3,
  "transaction": "0100000002...",
  "merkle_proof": "AAOkEnYhJgm0kklo2yDQ7Q2kAsY8ChFY1LeZtXjrNK+X...",
  "addresses": [
    "18FJd9tDLAC2S6PCzfnqNfUMXhZuPfsFUm",
    "1P7UWRLdL5pH2Si1GauwASYAA1LQHs2z45"
  ],
  "inputs": [],
  "outputs": [
    "76a9144f7d6a485e09770f947c0ba38d15050a5a80b6fa88ac",
    "76a914f28c3992dd6a43eccaed16f3f7fb6ac8da1bc3c288ac"
  ],
  "input_types": [],
  "output_types": ["nulldata", "pubkeyhash", "run"],
  "contexts": [
    "555aad1953bcfef8c7779d246fa03efae0412ed700b955435831814f5be3a82b_o1",
    "c2c4c971e85b499c29a8ab2148fd324fe12b550b8f4f57658a4686e011d8fd58_o1"
  ],
  "sub_contexts": [
    "2e729d39a9cd300f5100044a54204e6d8b43fe49555309361fdc3d8565323499"
  ],
  "data": []
}

curl https://junglebus.gorillapool.io/v1/transaction/get/{txid}

curl https://junglebus.gorillapool.io/v1/address/get/{address}

[
  {
    "id": "8859250950ecbb7025731c1206e277e344a6db5f285274b7a1d2817980ab8e64",
    "address": "13qRymPwRxAr7oRdAoFdo5Wp8815sstHE5",
    "transaction_id": "eb197a43a7c4ed230a7125d7e7bf5990cd60be8ff0f59b8fffdfd91d52dfce82",
    "block_hash": "0000000000000000002be95240df5e4215e6878259dce8b9df08650641fdd40a",
    "block_index": 50545
  }
]

curl https://junglebus.gorillapool.io/v1/block_header/get/{block_hash}

{
  "hash": "000000000000000006296f1e5437dd6c01b9b5471691a89a9c7d8e9f06920da5",
  "coin": 1,
  "height": 750000,
  "time": 1658878267,
  "nonce": 4188280238,
  "version": 671080448,
  "merkleroot": "e88b40ac9367eb11dd918416b668e67f09bf24550eac93de7f2d68a0ca0c6eae",
  "bits": "180f4e90",
  "synced": 8971
}

import { ControlMessageStatusCode } from '@gorillapool/js-junglebus';

// Available codes:
ControlMessageStatusCode.BLOCK_DONE    // Block processing complete
ControlMessageStatusCode.WAITING       // Waiting for new block
ControlMessageStatusCode.REORG         // Blockchain reorganization
ControlMessageStatusCode.ERROR         // Error occurred

go get github.com/GorillaPool/go-junglebus

package main

import (
    "github.com/GorillaPool/go-junglebus"
)

func main() {
    client, _ := junglebus.New(
        junglebus.WithHTTP("https://junglebus.gorillapool.io"),
    )

    client.Subscribe("subscription-id", 750000, func(tx *junglebus.Transaction) {
        fmt.Printf("TX: %s at height %d\n", tx.Id, tx.BlockHeight)
        fmt.Printf("Types: %v\n", tx.OutputTypes)
    })
}

junglebus.gorillapool.io
    ↓
Dashboard → Subscriptions → Create New
    ↓
Configure filters:
  - Addresses (optional)
  - Input types (optional)
  - Output types (required for protocol filtering)
  - Contexts (required for specific protocols)
  - Sub contexts (optional)
  - Data keys (optional)
    ↓
Save subscription
    ↓
Copy subscription ID
    ↓
Use in your code