968 lines
26 KiB
Markdown
968 lines
26 KiB
Markdown
# NATSBridge
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A high-performance, bi-directional data bridge between **Julia**, **JavaScript**, and **Python/Micropython** applications using NATS (Core & JetStream), implementing the Claim-Check pattern for large payloads.
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[](https://opensource.org/licenses/MIT)
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[](https://nats.io)
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---
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## Table of Contents
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- [Overview](#overview)
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- [Features](#features)
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- [Architecture](#architecture)
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- [Installation](#installation)
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- [Quick Start](#quick-start)
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- [API Reference](#api-reference)
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- [Payload Types](#payload-types)
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- [Transport Strategies](#transport-strategies)
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- [Examples](#examples)
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- [Testing](#testing)
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- [License](#license)
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---
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## Overview
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NATSBridge enables seamless communication across Julia, JavaScript, and Python/Micropython applications through NATS, with intelligent transport selection based on payload size:
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| Transport | Payload Size | Method |
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|-----------|--------------|--------|
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| **Direct** | < 1MB | Sent directly via NATS (Base64 encoded) |
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| **Link** | >= 1MB | Uploaded to HTTP file server, URL sent via NATS |
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### Use Cases
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- **Chat Applications**: Text, images, audio, video in a single message
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- **File Transfer**: Efficient transfer of large files using claim-check pattern
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- **Streaming Data**: Sensor data, telemetry, and analytics pipelines
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- **Cross-Platform Communication**: Julia ↔ JavaScript ↔ Python/Micropython
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- **IoT Devices**: Micropython devices sending data to cloud services
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---
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## Features
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- ✅ **Bi-directional messaging** between Julia, JavaScript, and Python/Micropython
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- ✅ **Multi-payload support** - send multiple payloads with different types in one message
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- ✅ **Automatic transport selection** - direct vs link based on payload size
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- ✅ **Claim-Check pattern** for payloads > 1MB
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- ✅ **Apache Arrow IPC** support for tabular data (zero-copy reading)
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- ✅ **Exponential backoff** for reliable file server downloads
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- ✅ **Correlation ID tracking** for message tracing
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- ✅ **Reply-to support** for request-response patterns
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- ✅ **JetStream support** for message replay and durability
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- ✅ **Lightweight Micropython implementation** for microcontrollers
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---
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## Architecture
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### System Components
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```
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┌─────────────────────────────────────────────────────────────────────┐
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│ NATSBridge Architecture │
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├─────────────────────────────────────────────────────────────────────┤
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│ ┌──────────────┐ ┌──────────────┐ ┌──────────────┐ │
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│ │ Julia │ │ JavaScript │ │ Python/ │ │
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│ │ (NATS.jl) │◄──►│ (nats.js) │◄──►│ Micropython │ │
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│ └──────────────┘ └──────────────┘ └──────────────┘ │
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│ │ │ │ │
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│ ▼ ▼ ▼ │
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│ ┌─────────────────────────────────────────────────────┐ │
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│ │ NATS │ │
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│ │ (Message Broker) │ │
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│ └─────────────────────────────────────────────────────┘ │
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│ │ │
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│ ▼ │
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│ ┌──────────────────────┐ │
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│ │ File Server │ │
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│ │ (HTTP Upload/Get) │ │
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│ └──────────────────────┘ │
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└─────────────────────────────────────────────────────────────────────┘
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```
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### Message Flow
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1. **Sender** creates a message envelope with payloads
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2. **NATSBridge** serializes and encodes payloads based on type
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3. **Transport Decision**: Small payloads go directly to NATS, large payloads are uploaded to file server
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4. **NATS** routes messages to subscribers
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5. **Receiver** fetches payloads (from NATS or file server)
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6. **NATSBridge** deserializes and decodes payloads
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---
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## Installation
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### Prerequisites
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- **NATS Server** (v2.10+ recommended)
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- **HTTP File Server** (optional, for payloads > 1MB)
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### Julia
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```julia
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using Pkg
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Pkg.add("NATS")
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Pkg.add("https://git.yiem.cc/ton/NATSBridge")
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```
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### JavaScript
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```bash
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npm install nats.js apache-arrow uuid base64-url
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```
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For Node.js:
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```javascript
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const { smartsend, smartreceive } = require('./src/NATSBridge');
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```
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For browser:
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```html
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<script src="./src/NATSBridge.js"></script>
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<script>
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// NATSBridge is available as window.NATSBridge
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</script>
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```
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### Python/Micropython
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1. Copy [`src/nats_bridge.py`](src/nats_bridge.py) to your device
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2. Install dependencies:
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**For Python (desktop):**
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```bash
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pip install nats-py
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```
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**For Micropython:**
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- `urequests` for HTTP requests (built-in for ESP32)
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- `base64` for base64 encoding (built-in)
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- `json` for JSON handling (built-in)
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---
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## Quick Start
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### Step 1: Start NATS Server
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```bash
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docker run -p 4222:4222 nats:latest
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```
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### Step 2: Start HTTP File Server (Optional)
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```bash
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# Create a directory for file uploads
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mkdir -p /tmp/fileserver
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# Use Python's built-in server
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python3 -m http.server 8080 --directory /tmp/fileserver
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```
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### Step 3: Send Your First Message
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#### Python/Micropython
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```python
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from nats_bridge import smartsend
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# Send a text message
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data = [("message", "Hello World", "text")]
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env, msg_json_str = smartsend("/chat/room1", data, nats_url="nats://localhost:4222")
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print("Message sent!")
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```
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#### JavaScript
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```javascript
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const { smartsend } = require('./src/NATSBridge');
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// Send a text message
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const { env, msg_json_str } = await smartsend("/chat/room1", [
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{ dataname: "message", data: "Hello World", type: "text" }
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], { natsUrl: "nats://localhost:4222" });
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console.log("Message sent!");
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```
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#### Julia
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```julia
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using NATSBridge
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# Send a text message
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data = [("message", "Hello World", "text")]
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env, msg_json_str = NATSBridge.smartsend("/chat/room1", data, nats_url="nats://localhost:4222")
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println("Message sent!")
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```
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### Step 4: Receive Messages
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#### Python/Micropython
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```python
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import nats
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import asyncio
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from nats_bridge import smartreceive
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# Configuration
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SUBJECT = "/chat/room1"
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NATS_URL = "nats://localhost:4222"
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async def main():
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# Connect to NATS
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nc = await nats.connect(NATS_URL)
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# Subscribe to the subject - msg comes from the callback
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async def message_handler(msg):
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# Receive and process message
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envelope = smartreceive(msg.data)
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for dataname, data, type in envelope["payloads"]:
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print(f"Received {dataname}: {data}")
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sid = await nc.subscribe(SUBJECT, cb=message_handler)
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await asyncio.sleep(120) # Keep listening
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await nc.close()
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asyncio.run(main())
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```
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#### JavaScript
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```javascript
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const { smartreceive } = require('./src/NATSBridge');
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const { connect } = require('nats');
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// Configuration
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const SUBJECT = "/chat/room1";
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const NATS_URL = "nats://localhost:4222";
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async function main() {
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// Connect to NATS
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const nc = await connect({ servers: [NATS_URL] });
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// Subscribe to the subject - msg comes from the async iteration
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const sub = nc.subscribe(SUBJECT);
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for await (const msg of sub) {
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// Receive and process message
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const envelope = await smartreceive(msg);
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for (const payload of envelope.payloads) {
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console.log(`Received ${payload.dataname}: ${payload.data}`);
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}
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}
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}
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main();
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```
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#### Julia
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```julia
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using NATS, NATSBridge
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# Configuration
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const SUBJECT = "/chat/room1"
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const NATS_URL = "nats://localhost:4222"
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# Helper: Log with correlation ID
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function log_trace(message)
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timestamp = Dates.now()
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println("[$timestamp] $message")
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end
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# Receiver: Listen for messages - msg comes from the callback
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function test_receive()
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conn = NATS.connect(NATS_URL)
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NATS.subscribe(conn, SUBJECT) do msg
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log_trace("Received message on $(msg.subject)")
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# Receive and process message
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envelope = NATSBridge.smartreceive(msg, fileserverDownloadHandler)
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for (dataname, data, type) in envelope["payloads"]
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println("Received $dataname: $data")
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end
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end
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# Keep listening for 120 seconds
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sleep(120)
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NATS.drain(conn)
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end
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test_receive()
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```
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---
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## API Reference
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### smartsend
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Sends data either directly via NATS or via a fileserver URL, depending on payload size.
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#### Python/Micropython
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```python
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from nats_bridge import smartsend
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env = smartsend(
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subject, # NATS subject to publish to
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data, # List of (dataname, data, type) tuples
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nats_url="nats://localhost:4222", # NATS server URL
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fileserver_url="http://localhost:8080", # File server URL
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fileserver_upload_handler=plik_oneshot_upload, # Upload handler function
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size_threshold=1_000_000, # Threshold in bytes (default: 1MB)
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correlation_id=None, # Optional correlation ID for tracing
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msg_purpose="chat", # Message purpose
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sender_name="NATSBridge", # Sender name
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receiver_name="", # Receiver name (empty = broadcast)
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receiver_id="", # Receiver UUID (empty = broadcast)
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reply_to="", # Reply topic
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reply_to_msg_id="", # Reply message ID
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is_publish=True # Whether to automatically publish to NATS
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)
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```
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#### JavaScript
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```javascript
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const { smartsend } = require('./src/NATSBridge');
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const env = await smartsend(
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subject, // NATS subject
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data, // Array of {dataname, data, type}
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{
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natsUrl: "nats://localhost:4222",
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fileserverUrl: "http://localhost:8080",
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fileserverUploadHandler: customUploadHandler,
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sizeThreshold: 1_000_000,
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correlationId: "custom-id",
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msgPurpose: "chat",
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senderName: "NATSBridge",
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receiverName: "",
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receiverId: "",
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replyTo: "",
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replyToMsgId: "",
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isPublish: true // Whether to automatically publish to NATS
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}
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);
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```
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#### Julia
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```julia
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using NATSBridge
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env, msg_json_str = NATSBridge.smartsend(
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subject; # NATS subject
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data::AbstractArray{Tuple{String, Any, String}}; # List of (dataname, data, type)
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nats_url::String = "nats://localhost:4222",
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fileserver_url = "http://localhost:8080",
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fileserverUploadHandler::Function = plik_oneshot_upload,
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size_threshold::Int = 1_000_000,
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correlation_id::Union{String, Nothing} = nothing,
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msg_purpose::String = "chat",
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sender_name::String = "NATSBridge",
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receiver_name::String = "",
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receiver_id::String = "",
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reply_to::String = "",
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reply_to_msg_id::String = "",
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is_publish::Bool = true # Whether to automatically publish to NATS
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)
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# Returns: (msgEnvelope_v1, JSON string)
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# - env: msgEnvelope_v1 object with all envelope metadata and payloads
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# - msg_json_str: JSON string representation of the envelope for publishing
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```
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### smartreceive
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Receives and processes messages from NATS, handling both direct and link transport.
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#### Python/Micropython
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```python
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from nats_bridge import smartreceive
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# Note: For nats-py, use msg.data to pass the raw message data
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envelope = smartreceive(
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msg.data, # NATS message data (msg.data for nats-py)
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fileserver_download_handler=_fetch_with_backoff, # Download handler
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max_retries=5, # Max retry attempts
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base_delay=100, # Initial delay in ms
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max_delay=5000 # Max delay in ms
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)
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# Returns: Dict with envelope metadata and 'payloads' field
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```
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#### JavaScript
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```javascript
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const { smartreceive } = require('./src/NATSBridge');
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// Note: msg is the NATS message object from subscription
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const envelope = await smartreceive(
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msg, // NATS message (raw object from subscription)
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{
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fileserverDownloadHandler: customDownloadHandler,
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maxRetries: 5,
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baseDelay: 100,
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maxDelay: 5000
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}
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);
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// Returns: Object with envelope metadata and payloads array
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```
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#### Julia
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```julia
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using NATSBridge
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# Note: msg is a NATS.Msg object passed from the subscription callback
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envelope = NATSBridge.smartreceive(
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msg::NATS.Msg;
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fileserverDownloadHandler::Function = _fetch_with_backoff,
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max_retries::Int = 5,
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base_delay::Int = 100,
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max_delay::Int = 5000
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)
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# Returns: Dict with envelope metadata and payloads array
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```
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---
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## Payload Types
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| Type | Description | Serialization |
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|------|-------------|---------------|
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| `text` | Plain text strings | UTF-8 bytes |
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| `dictionary` | JSON-serializable dictionaries | JSON |
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| `table` | Tabular data (DataFrames, arrays) | Apache Arrow IPC |
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| `image` | Image data (PNG, JPG) | Raw bytes |
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| `audio` | Audio data (WAV, MP3) | Raw bytes |
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| `video` | Video data (MP4, AVI) | Raw bytes |
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| `binary` | Generic binary data | Raw bytes |
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---
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## Transport Strategies
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### Direct Transport (Payloads < 1MB)
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Small payloads are sent directly via NATS with Base64 encoding.
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#### Python/Micropython
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```python
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data = [("message", "Hello", "text")]
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smartsend("/topic", data)
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```
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#### JavaScript
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```javascript
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await smartsend("/topic", [
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{ dataname: "message", data: "Hello", type: "text" }
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]);
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```
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#### Julia
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```julia
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data = [("message", "Hello", "text")]
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smartsend("/topic", data)
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```
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### Link Transport (Payloads >= 1MB)
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Large payloads are uploaded to an HTTP file server.
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#### Python/Micropython
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```python
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data = [("file", large_data, "binary")]
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smartsend("/topic", data, fileserver_url="http://localhost:8080")
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```
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#### JavaScript
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```javascript
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await smartsend("/topic", [
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{ dataname: "file", data: largeData, type: "binary" }
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], { fileserverUrl: "http://localhost:8080" });
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```
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#### Julia
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```julia
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data = [("file", large_data, "binary")]
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smartsend("/topic", data, fileserver_url="http://localhost:8080")
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```
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---
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## Examples
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All examples include code for **Julia**, **JavaScript**, and **Python/Micropython** unless otherwise specified.
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### Example 1: Chat with Mixed Content
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Send text, small image, and large file in one message.
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#### Python/Micropython
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```python
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from nats_bridge import smartsend
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data = [
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("message_text", "Hello!", "text"),
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("user_avatar", image_data, "image"),
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("large_document", large_file_data, "binary")
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]
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smartsend("/chat/room1", data, fileserver_url="http://localhost:8080")
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```
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#### JavaScript
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```javascript
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const { smartsend } = require('./src/NATSBridge');
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await smartsend("/chat/room1", [
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{ dataname: "message_text", data: "Hello!", type: "text" },
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{ dataname: "user_avatar", data: image_data, type: "image" },
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{ dataname: "large_document", data: large_file_data, type: "binary" }
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], {
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fileserverUrl: "http://localhost:8080"
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});
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```
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#### Julia
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```julia
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using NATSBridge
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data = [
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("message_text", "Hello!", "text"),
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("user_avatar", image_data, "image"),
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("large_document", large_file_data, "binary")
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]
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NATSBridge.smartsend("/chat/room1", data, fileserver_url="http://localhost:8080")
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```
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### Example 2: Dictionary Exchange
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Send configuration data between platforms.
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#### Python/Micropython
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```python
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from nats_bridge import smartsend
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config = {
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"wifi_ssid": "MyNetwork",
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"wifi_password": "password123",
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"update_interval": 60
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}
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data = [("config", config, "dictionary")]
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smartsend("/device/config", data)
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```
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#### JavaScript
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```javascript
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const { smartsend } = require('./src/NATSBridge');
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const config = {
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wifi_ssid: "MyNetwork",
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wifi_password: "password123",
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update_interval: 60
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|
};
|
|
|
|
await smartsend("/device/config", [
|
|
{ dataname: "config", data: config, type: "dictionary" }
|
|
]);
|
|
```
|
|
|
|
#### Julia
|
|
```julia
|
|
using NATSBridge
|
|
|
|
config = Dict(
|
|
"wifi_ssid" => "MyNetwork",
|
|
"wifi_password" => "password123",
|
|
"update_interval" => 60
|
|
)
|
|
|
|
data = [("config", config, "dictionary")]
|
|
NATSBridge.smartsend("/device/config", data)
|
|
```
|
|
|
|
### Example 3: Table Data (Arrow IPC)
|
|
|
|
Send tabular data using Apache Arrow IPC format.
|
|
|
|
#### Python/Micropython
|
|
```python
|
|
import pandas as pd
|
|
from nats_bridge import smartsend
|
|
|
|
df = pd.DataFrame({
|
|
"id": [1, 2, 3],
|
|
"name": ["Alice", "Bob", "Charlie"],
|
|
"score": [95, 88, 92]
|
|
})
|
|
|
|
data = [("students", df, "table")]
|
|
smartsend("/data/analysis", data)
|
|
```
|
|
|
|
#### JavaScript
|
|
```javascript
|
|
const { smartsend } = require('./src/NATSBridge');
|
|
|
|
const tableData = [
|
|
{ id: 1, name: "Alice", score: 95 },
|
|
{ id: 2, name: "Bob", score: 88 },
|
|
{ id: 3, name: "Charlie", score: 92 }
|
|
];
|
|
|
|
await smartsend("/data/analysis", [
|
|
{ dataname: "students", data: tableData, type: "table" }
|
|
]);
|
|
```
|
|
|
|
#### Julia
|
|
```julia
|
|
using NATSBridge
|
|
using DataFrames
|
|
|
|
df = DataFrame(
|
|
id = [1, 2, 3],
|
|
name = ["Alice", "Bob", "Charlie"],
|
|
score = [95, 88, 92]
|
|
)
|
|
|
|
data = [("students", df, "table")]
|
|
NATSBridge.smartsend("/data/analysis", data)
|
|
```
|
|
|
|
### Example 4: Request-Response Pattern with Envelope JSON
|
|
|
|
Bi-directional communication with reply-to support. The `smartsend` function now returns both the envelope object and a JSON string that can be published directly.
|
|
|
|
#### Python/Micropython (Requester)
|
|
```python
|
|
from nats_bridge import smartsend
|
|
|
|
env, msg_json_str = smartsend(
|
|
"/device/command",
|
|
[("command", {"action": "read_sensor"}, "dictionary")],
|
|
reply_to="/device/response"
|
|
)
|
|
# env: msgEnvelope_v1 object
|
|
# msg_json_str: JSON string for publishing to NATS
|
|
|
|
# The msg_json_str can also be published directly using NATS request-reply pattern
|
|
# nc.request("/device/command", msg_json_str, reply_to="/device/response")
|
|
```
|
|
|
|
#### Python/Micropython (Responder)
|
|
```python
|
|
import nats
|
|
import asyncio
|
|
from nats_bridge import smartreceive, smartsend
|
|
|
|
# Configuration
|
|
SUBJECT = "/device/command"
|
|
REPLY_SUBJECT = "/device/response"
|
|
NATS_URL = "nats://localhost:4222"
|
|
|
|
async def main():
|
|
nc = await nats.connect(NATS_URL)
|
|
|
|
async def message_handler(msg):
|
|
envelope = smartreceive(msg.data)
|
|
for dataname, data, type in envelope["payloads"]:
|
|
if data.get("action") == "read_sensor":
|
|
response = {"sensor_id": "sensor-001", "value": 42.5}
|
|
smartsend(REPLY_SUBJECT, [("data", response, "dictionary")])
|
|
|
|
sid = await nc.subscribe(SUBJECT, cb=message_handler)
|
|
await asyncio.sleep(120)
|
|
await nc.close()
|
|
|
|
asyncio.run(main())
|
|
```
|
|
|
|
#### JavaScript (Requester)
|
|
```javascript
|
|
const { smartsend } = require('./src/NATSBridge');
|
|
|
|
await smartsend("/device/command", [
|
|
{ dataname: "command", data: { action: "read_sensor" }, type: "dictionary" }
|
|
], {
|
|
replyTo: "/device/response"
|
|
});
|
|
```
|
|
|
|
#### JavaScript (Responder)
|
|
```javascript
|
|
const { smartreceive, smartsend } = require('./src/NATSBridge');
|
|
const { connect } = require('nats');
|
|
|
|
// Configuration
|
|
const SUBJECT = "/device/command";
|
|
const REPLY_SUBJECT = "/device/response";
|
|
const NATS_URL = "nats://localhost:4222";
|
|
|
|
async function main() {
|
|
const nc = await connect({ servers: [NATS_URL] });
|
|
|
|
const sub = nc.subscribe(SUBJECT);
|
|
|
|
for await (const msg of sub) {
|
|
const envelope = await smartreceive(msg);
|
|
for (const payload of envelope.payloads) {
|
|
if (payload.dataname === "command" && payload.data.action === "read_sensor") {
|
|
const response = { sensor_id: "sensor-001", value: 42.5 };
|
|
await smartsend(REPLY_SUBJECT, [
|
|
{ dataname: "data", data: response, type: "dictionary" }
|
|
]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
main();
|
|
```
|
|
|
|
#### Julia (Requester)
|
|
```julia
|
|
using NATSBridge
|
|
|
|
env = NATSBridge.smartsend(
|
|
"/device/command",
|
|
[("command", Dict("action" => "read_sensor"), "dictionary")],
|
|
reply_to="/device/response"
|
|
)
|
|
```
|
|
|
|
#### Julia (Responder)
|
|
```julia
|
|
using NATS, NATSBridge
|
|
|
|
# Configuration
|
|
const SUBJECT = "/device/command"
|
|
const REPLY_SUBJECT = "/device/response"
|
|
const NATS_URL = "nats://localhost:4222"
|
|
|
|
function test_responder()
|
|
conn = NATS.connect(NATS_URL)
|
|
NATS.subscribe(conn, SUBJECT) do msg
|
|
envelope = NATSBridge.smartreceive(msg, fileserverDownloadHandler)
|
|
for (dataname, data, type) in envelope["payloads"]
|
|
if dataname == "command" && data["action"] == "read_sensor"
|
|
response = Dict("sensor_id" => "sensor-001", "value" => 42.5)
|
|
smartsend(REPLY_SUBJECT, [("data", response, "dictionary")])
|
|
end
|
|
end
|
|
end
|
|
|
|
sleep(120)
|
|
NATS.drain(conn)
|
|
end
|
|
|
|
test_responder()
|
|
```
|
|
|
|
### Example 5: Micropython IoT Device
|
|
|
|
Lightweight Micropython device sending sensor data.
|
|
|
|
#### Micropython
|
|
```python
|
|
import nats
|
|
import asyncio
|
|
from nats_bridge import smartsend, smartreceive
|
|
|
|
# Configuration
|
|
SUBJECT = "/device/sensors"
|
|
NATS_URL = "nats://localhost:4222"
|
|
|
|
async def main():
|
|
nc = await nats.connect(NATS_URL)
|
|
|
|
# Send sensor data
|
|
data = [("temperature", "25.5", "text"), ("humidity", 65, "dictionary")]
|
|
smartsend("/device/sensors", data, nats_url="nats://localhost:4222")
|
|
|
|
# Receive commands - msg comes from the callback
|
|
async def message_handler(msg):
|
|
envelope = smartreceive(msg.data)
|
|
for dataname, data, type in envelope["payloads"]:
|
|
if type == "dictionary" and data.get("action") == "reboot":
|
|
# Execute reboot
|
|
pass
|
|
|
|
sid = await nc.subscribe(SUBJECT, cb=message_handler)
|
|
await asyncio.sleep(120)
|
|
await nc.close()
|
|
|
|
asyncio.run(main())
|
|
```
|
|
|
|
#### JavaScript (Receiver)
|
|
```javascript
|
|
const { smartreceive } = require('./src/NATSBridge');
|
|
const { connect } = require('nats');
|
|
|
|
// Configuration
|
|
const SUBJECT = "/device/sensors";
|
|
const NATS_URL = "nats://localhost:4222";
|
|
|
|
async function main() {
|
|
const nc = await connect({ servers: [NATS_URL] });
|
|
|
|
const sub = nc.subscribe(SUBJECT);
|
|
|
|
for await (const msg of sub) {
|
|
const envelope = await smartreceive(msg);
|
|
for (const payload of envelope.payloads) {
|
|
if (payload.dataname === "temperature") {
|
|
console.log(`Temperature: ${payload.data}`);
|
|
} else if (payload.dataname === "humidity") {
|
|
console.log(`Humidity: ${payload.data}`);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
main();
|
|
```
|
|
|
|
#### Julia (Receiver)
|
|
```julia
|
|
using NATS, NATSBridge
|
|
|
|
# Configuration
|
|
const SUBJECT = "/device/sensors"
|
|
const NATS_URL = "nats://localhost:4222"
|
|
|
|
function test_receiver()
|
|
conn = NATS.connect(NATS_URL)
|
|
NATS.subscribe(conn, SUBJECT) do msg
|
|
envelope = NATSBridge.smartreceive(msg, fileserverDownloadHandler)
|
|
for (dataname, data, type) in envelope["payloads"]
|
|
if dataname == "temperature"
|
|
println("Temperature: $data")
|
|
elseif dataname == "humidity"
|
|
println("Humidity: $data")
|
|
end
|
|
end
|
|
end
|
|
|
|
sleep(120)
|
|
NATS.drain(conn)
|
|
end
|
|
|
|
test_receiver()
|
|
```
|
|
|
|
---
|
|
|
|
## Testing
|
|
|
|
Run the test scripts to verify functionality:
|
|
|
|
### Python/Micropython
|
|
|
|
```bash
|
|
# Basic functionality test
|
|
python test/test_micropython_basic.py
|
|
|
|
# Text message exchange
|
|
python test/test_micropython_text_sender.py
|
|
python test/test_micropython_text_receiver.py
|
|
|
|
# Dictionary exchange
|
|
python test/test_micropython_dict_sender.py
|
|
python test/test_micropython_dict_receiver.py
|
|
|
|
# File transfer
|
|
python test/test_micropython_file_sender.py
|
|
python test/test_micropython_file_receiver.py
|
|
|
|
# Mixed payload types
|
|
python test/test_micropython_mixed_sender.py
|
|
python test/test_micropython_mixed_receiver.py
|
|
```
|
|
|
|
### JavaScript
|
|
|
|
```bash
|
|
# Text message exchange
|
|
node test/test_js_text_sender.js
|
|
node test/test_js_text_receiver.js
|
|
|
|
# Dictionary exchange
|
|
node test/test_js_dict_sender.js
|
|
node test/test_js_dict_receiver.js
|
|
|
|
# File transfer
|
|
node test/test_js_file_sender.js
|
|
node test/test_js_file_receiver.js
|
|
|
|
# Mixed payload types
|
|
node test/test_js_mix_payload_sender.js
|
|
node test/test_js_mix_payloads_receiver.js
|
|
|
|
# Table exchange
|
|
node test/test_js_table_sender.js
|
|
node test/test_js_table_receiver.js
|
|
```
|
|
|
|
### Julia
|
|
|
|
```julia
|
|
# Text message exchange
|
|
julia test/test_julia_text_sender.jl
|
|
julia test/test_julia_text_receiver.jl
|
|
|
|
# Dictionary exchange
|
|
julia test/test_julia_dict_sender.jl
|
|
julia test/test_julia_dict_receiver.jl
|
|
|
|
# File transfer
|
|
julia test/test_julia_file_sender.jl
|
|
julia test/test_julia_file_receiver.jl
|
|
|
|
# Mixed payload types
|
|
julia test/test_julia_mix_payloads_sender.jl
|
|
julia test/test_julia_mix_payloads_receiver.jl
|
|
|
|
# Table exchange
|
|
julia test/test_julia_table_sender.jl
|
|
julia test/test_julia_table_receiver.jl
|
|
```
|
|
|
|
---
|
|
|
|
## License
|
|
|
|
MIT License
|
|
|
|
Copyright (c) 2026 NATSBridge Contributors
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in all
|
|
copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
SOFTWARE. |