Hi All,
Anyone using the Venus API to talk to their system remotely? I can hit the API endpoints using localhost and the PC’s IP address (from that PC, ie locally) - but I can’t access them from another PC. I checked the firewall rules and I can ping the PC’s IP address from another computer. I don’t have authentication turned on.
Any advice?
Thanks
Rob
Turns out you have to be not-dumb.
I was on a different network… The ping replies threw me off, but the networks were segregated. When I am on the right network, everything works as expected.
As an aside - Gemini (and I’m sure many of the other new models) is pretty amazing. I uploaded the API doc and asked for a simple monitor. Save the html below as a .html:
Venus Device Monitor /* Using Inter font from Google Fonts */ @import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap'); body { font-family: 'Inter', sans-serif; background-color: #f3f4f6; /* A light gray background */ } /* Custom scrollbar for the trace log */ #trace-log::-webkit-scrollbar { width: 8px; } #trace-log::-webkit-scrollbar-track { background: #e5e7eb; border-radius: 10px; } #trace-log::-webkit-scrollbar-thumb { background: #9ca3af; border-radius: 10px; } #trace-log::-webkit-scrollbar-thumb:hover { background: #6b7280; }<div class="container mx-auto p-4 md:p-8 max-w-4xl">
<!-- Header -->
<header class="mb-8">
<h1 class="text-3xl font-bold text-gray-900">Venus Device Monitor</h1>
<div class="flex items-center mt-2">
<p class="text-gray-600 mr-2">Connection Status:</p>
<span id="connection-status" class="px-3 py-1 text-sm font-semibold text-white bg-yellow-500 rounded-full">
Connecting...
</span>
</div>
</header>
<!-- Main Content -->
<main class="grid grid-cols-1 gap-8">
<!-- Device Status Card -->
<div class="bg-white p-6 rounded-xl shadow-md">
<h2 class="text-xl font-semibold mb-4">Device Status</h2>
<div class="flex items-center space-x-4">
<div id="status-indicator-light" class="w-4 h-4 rounded-full bg-gray-400 animate-pulse"></div>
<p id="device-status" class="text-lg font-medium text-gray-500">Waiting for status updates...</p>
</div>
<p id="status-message" class="text-sm text-gray-500 mt-2 ml-8"></p>
</div>
<!-- Real-time Trace Log Card -->
<div class="bg-white p-6 rounded-xl shadow-md">
<div class="flex justify-between items-center mb-4">
<h2 class="text-xl font-semibold">Real-time Trace Log</h2>
<button id="clear-log-btn" class="px-4 py-2 text-sm font-medium text-white bg-red-600 rounded-lg hover:bg-red-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-red-500">Clear Log</button>
</div>
<div id="trace-log" class="h-96 bg-gray-900 text-white font-mono text-sm p-4 rounded-lg overflow-y-auto">
<!-- Trace messages will be appended here -->
<div class="text-gray-400">Awaiting trace messages from the SignalR hub...</div>
</div>
</div>
</main>
<!-- Footer -->
<footer class="text-center mt-8 text-sm text-gray-500">
<p>Built for the Venus Web API. Connects to http://localhost:51745/signalR.</p>
</footer>
</div>
<script>
// --- DOM Element References ---
const connectionStatusEl = document.getElementById('connection-status');
const deviceStatusEl = document.getElementById('device-status');
const statusMessageEl = document.getElementById('status-message');
const statusIndicatorLightEl = document.getElementById('status-indicator-light');
const traceLogEl = document.getElementById('trace-log');
const clearLogBtn = document.getElementById('clear-log-btn');
// --- Configuration ---
const signalRUrl = "http://localhost:51745/signalR";
// --- Status Mappings (Based on Programmer's Manual 4.3.3.2) ---
const executorEventMap = {
0: { text: "Undefined", color: "bg-gray-500" },
1: { text: "Initialized", color: "bg-blue-500" },
2: { text: "Initialization Failed", color: "bg-red-600" },
3: { text: "Terminated", color: "bg-green-600" },
4: { text: "Aborted", color: "bg-red-600" },
5: { text: "Paused", color: "bg-yellow-500" },
6: { text: "Running", color: "bg-green-500" },
7: { text: "Unloaded", color: "bg-gray-500" }
};
// --- Helper Functions ---
function updateConnectionStatus(status, color) {
connectionStatusEl.textContent = status;
connectionStatusEl.className = `px-3 py-1 text-sm font-semibold text-white ${color} rounded-full`;
}
function updateDeviceStatus(event, message) {
const statusInfo = executorEventMap[event] || executorEventMap[0];
deviceStatusEl.textContent = statusInfo.text;
deviceStatusEl.classList.remove('text-gray-500');
statusMessageEl.textContent = message || "No additional message.";
// Update the status indicator light
statusIndicatorLightEl.className = `w-4 h-4 rounded-full ${statusInfo.color}`;
if (statusInfo.text === 'Running') {
statusIndicatorLightEl.classList.add('animate-ping', 'opacity-75');
} else {
statusIndicatorLightEl.classList.remove('animate-ping', 'opacity-75', 'animate-pulse');
}
}
function addTraceMessage(message) {
// Clear the initial message if it exists
if (traceLogEl.childElementCount === 1 && traceLogEl.firstChild.textContent.startsWith('Awaiting')) {
traceLogEl.innerHTML = '';
}
const traceEntry = document.createElement('div');
const timestamp = new Date().toLocaleTimeString();
traceEntry.innerHTML = `<span class="text-gray-500 mr-2">${timestamp}</span><span class="text-green-400">></span> ${message}`;
traceLogEl.appendChild(traceEntry);
// Auto-scroll to the bottom
traceLogEl.scrollTop = traceLogEl.scrollHeight;
}
clearLogBtn.addEventListener('click', () => {
traceLogEl.innerHTML = '<div class="text-gray-400">Log cleared. Awaiting new trace messages...</div>';
});
// --- SignalR Connection Setup ---
const connection = new signalR.HubConnectionBuilder()
.withUrl(signalRUrl, {
// As per the manual, these options might be necessary
skipNegotiation: true,
transport: signalR.HttpTransportType.WebSockets
})
.withAutomaticReconnect()
.build();
// --- SignalR Event Handlers ---
// Handle "NewRuntimeStatus" push notification
connection.on("NewRuntimeStatus", (data) => {
console.log("NewRuntimeStatus:", data);
if (data && typeof data.ExecutorEvent !== 'undefined') {
updateDeviceStatus(data.ExecutorEvent, data.Message);
}
});
// Handle "NewRuntimeTrace" push notification
connection.on("NewRuntimeTrace", (data) => {
console.log("NewRuntimeTrace:", data);
addTraceMessage(data);
});
// Handle connection lifecycle events
connection.onreconnecting(error => {
console.warn(`Connection lost. Attempting to reconnect...`);
updateConnectionStatus("Reconnecting", "bg-yellow-500");
});
connection.onreconnected(connectionId => {
console.log(`Connection re-established. Connected with ID: ${connectionId}`);
updateConnectionStatus("Connected", "bg-green-600");
});
connection.onclose(error => {
console.error(`Connection closed due to error: "${error}". Try refreshing the page.`);
updateConnectionStatus("Disconnected", "bg-red-600");
statusIndicatorLightEl.className = 'w-4 h-4 rounded-full bg-red-600';
statusIndicatorLightEl.classList.remove('animate-ping', 'opacity-75', 'animate-pulse');
});
// --- Start Connection ---
async function start() {
try {
await connection.start();
console.log("SignalR Connected.");
updateConnectionStatus("Connected", "bg-green-600");
} catch (err) {
console.error("SignalR Connection Error: ", err);
updateConnectionStatus("Failed", "bg-red-600");
addTraceMessage(`ERROR: Could not connect to the SignalR hub at ${signalRUrl}. Ensure the Venus WebAPI Host service is running.`);
}
}
start();
</script>