${title}

${statsText}

\n `;\n \n return headerDiv;\n }\n\n createMessageElement(message, index) {\n const type = this.grouper.getMessageType(message);\n const direction = this.grouper.getMessageDirection(message);\n const isClientMessage = direction === 'client-to-server';\n const isPing = this.grouper.isPingMessage(message);\n \n const messageDiv = document.createElement('div');\n messageDiv.className = `flex ${isClientMessage ? 'justify-end' : 'justify-start'} mb-4`;\n \n const contentDiv = document.createElement('div');\n let baseClasses = 'max-w-4xl rounded-lg p-4 shadow-md';\n \n if (isPing) {\n // Special styling for ping messages\n contentDiv.className = `${baseClasses} bg-yellow-50 border-l-4 border-yellow-400 opacity-75`;\n } else {\n contentDiv.className = `${baseClasses} ${\n isClientMessage \n ? 'bg-blue-100 border-l-4 border-blue-500' \n : 'bg-green-100 border-l-4 border-green-500'\n }`;\n }\n\n const headerDiv = document.createElement('div');\n headerDiv.className = 'flex justify-between items-center mb-2';\n \n const titleSpan = document.createElement('span');\n titleSpan.className = 'font-semibold text-sm';\n \n let titleText = `${isClientMessage ? '→ Client' : '← Server'} | ${type.toUpperCase()}`;\n if (isPing) {\n titleText += ' 🏓';\n }\n titleSpan.textContent = titleText;\n \n if (message.method) {\n const methodSpan = document.createElement('span');\n methodSpan.className = `text-xs px-2 py-1 rounded ml-2 ${\n isPing ? 'bg-yellow-200 text-yellow-800' : 'bg-gray-200'\n }`;\n methodSpan.textContent = message.method;\n titleSpan.appendChild(methodSpan);\n }\n \n if (message.id !== undefined) {\n const idSpan = document.createElement('span');\n idSpan.className = 'text-xs bg-gray-200 px-2 py-1 rounded ml-2';\n idSpan.textContent = `ID: ${message.id}`;\n titleSpan.appendChild(idSpan);\n }\n\n const toggleBtn = document.createElement('button');\n toggleBtn.className = 'text-xs bg-gray-300 hover:bg-gray-400 px-2 py-1 rounded transition-colors';\n toggleBtn.textContent = 'Collapse';\n \n headerDiv.appendChild(titleSpan);\n headerDiv.appendChild(toggleBtn);\n\n const jsonDiv = document.createElement('div');\n jsonDiv.className = 'collapsible-content json-content bg-white p-3 rounded border overflow-auto';\n \n const pre = document.createElement('pre');\n pre.className = 'whitespace-pre-wrap break-words';\n pre.textContent = this.formatJson(message);\n \n jsonDiv.appendChild(pre);\n \n // Toggle functionality\n let isCollapsed = false;\n toggleBtn.addEventListener('click', () => {\n isCollapsed = !isCollapsed;\n jsonDiv.classList.toggle('collapsed', isCollapsed);\n toggleBtn.textContent = isCollapsed ? 'Expand' : 'Collapse';\n });\n\n contentDiv.appendChild(headerDiv);\n contentDiv.appendChild(jsonDiv);\n messageDiv.appendChild(contentDiv);\n\n return messageDiv;\n }\n\n createRequestResponsePairElement(group) {\n const isPingPair = this.grouper.isPingMessage(group.request) || \n (group.response && this.grouper.isPingMessage(group.response));\n \n const pairDiv = document.createElement('div');\n pairDiv.className = `rounded-lg shadow-lg p-4 mb-6 border-l-4 ${\n isPingPair \n ? 'bg-yellow-50 border-yellow-400 opacity-75' \n : 'bg-white border-purple-500'\n }`;\n\n const headerDiv = document.createElement('div');\n headerDiv.className = 'flex justify-between items-center mb-4';\n \n const titleSpan = document.createElement('span');\n titleSpan.className = `font-semibold text-lg ${\n isPingPair ? 'text-yellow-700' : 'text-purple-700'\n }`;\n \n let titleText = 'Request-Response Pair';\n if (isPingPair) {\n titleText += ' 🏓';\n }\n titleSpan.textContent = titleText;\n \n if (group.request.method) {\n const methodSpan = document.createElement('span');\n methodSpan.className = `text-sm px-3 py-1 rounded ml-3 ${\n isPingPair \n ? 'bg-yellow-200 text-yellow-800' \n : 'bg-purple-100 text-purple-800'\n }`;\n methodSpan.textContent = group.request.method;\n titleSpan.appendChild(methodSpan);\n }\n \n const idSpan = document.createElement('span');\n idSpan.className = 'text-sm bg-gray-200 px-3 py-1 rounded ml-2';\n idSpan.textContent = `ID: ${group.request.id}`;\n titleSpan.appendChild(idSpan);\n\n const toggleBtn = document.createElement('button');\n toggleBtn.className = `text-sm px-4 py-2 rounded transition-colors ${\n isPingPair \n ? 'bg-yellow-200 hover:bg-yellow-300 text-yellow-800' \n : 'bg-purple-200 hover:bg-purple-300 text-purple-800'\n }`;\n toggleBtn.textContent = 'Collapse Pair';\n \n headerDiv.appendChild(titleSpan);\n headerDiv.appendChild(toggleBtn);\n\n const contentDiv = document.createElement('div');\n contentDiv.className = 'pair-content';\n\n // Create side-by-side layout\n const sideBySideDiv = document.createElement('div');\n sideBySideDiv.className = 'grid grid-cols-1 lg:grid-cols-2 gap-4';\n\n // Create request element\n const requestDiv = this.createPairMessageElement(group.request, 'REQUEST', 'blue');\n sideBySideDiv.appendChild(requestDiv);\n\n // Create response element (if exists)\n let responseDiv;\n if (group.response) {\n responseDiv = this.createPairMessageElement(group.response, 'RESPONSE', 'green');\n } else {\n // No response yet\n responseDiv = document.createElement('div');\n responseDiv.className = 'bg-yellow-50 rounded-lg p-4 border-l-4 border-yellow-400 flex items-center justify-center min-h-[200px]';\n responseDiv.innerHTML = '⏳ No response received yet';\n }\n sideBySideDiv.appendChild(responseDiv);\n\n contentDiv.appendChild(sideBySideDiv);\n\n // Pair toggle functionality\n let pairCollapsed = false;\n toggleBtn.addEventListener('click', () => {\n pairCollapsed = !pairCollapsed;\n contentDiv.style.display = pairCollapsed ? 'none' : 'block';\n toggleBtn.textContent = pairCollapsed ? 'Expand Pair' : 'Collapse Pair';\n });\n\n pairDiv.appendChild(headerDiv);\n pairDiv.appendChild(contentDiv);\n\n return pairDiv;\n }\n\n createPairMessageElement(message, label, color) {\n const messageDiv = document.createElement('div');\n messageDiv.className = `bg-${color}-50 rounded-lg p-4 border-l-4 border-${color}-400`;\n \n const headerDiv = document.createElement('div');\n headerDiv.className = 'flex justify-between items-center mb-2';\n \n const titleSpan = document.createElement('span');\n titleSpan.className = `font-medium text-${color}-700`;\n titleSpan.textContent = label === 'REQUEST' ? '→ REQUEST' : '← RESPONSE';\n \n const toggleBtn = document.createElement('button');\n toggleBtn.className = `text-xs bg-${color}-200 hover:bg-${color}-300 text-${color}-800 px-2 py-1 rounded transition-colors`;\n toggleBtn.textContent = 'Collapse';\n \n headerDiv.appendChild(titleSpan);\n headerDiv.appendChild(toggleBtn);\n \n const jsonDiv = document.createElement('div');\n jsonDiv.className = 'collapsible-content json-content bg-white p-3 rounded border overflow-auto mt-2';\n const pre = document.createElement('pre');\n pre.className = 'whitespace-pre-wrap break-words';\n pre.textContent = this.formatJson(message);\n jsonDiv.appendChild(pre);\n \n messageDiv.appendChild(headerDiv);\n messageDiv.appendChild(jsonDiv);\n\n // Toggle functionality\n let isCollapsed = false;\n toggleBtn.addEventListener('click', () => {\n isCollapsed = !isCollapsed;\n jsonDiv.classList.toggle('collapsed', isCollapsed);\n toggleBtn.textContent = isCollapsed ? 'Expand' : 'Collapse';\n });\n\n return messageDiv;\n }\n}",[19,71],"270b4fe2-471c-11f0-857c-76b3cceeab13","MessageParser.js","270b5096-471c-11f0-857c-76b3cceeab13",33,["D",1749684668814],"export class MessageParser {\n extractJsonMessages(input) {\n const messages = [];\n \n // Remove Content-Length headers first\n let text = input.replace(/Content-Length:\\s*\\d+\\s*[\\r\\n]+/g, '');\n \n // Find all JSON objects using brace counting\n let braceCount = 0;\n let currentJson = '';\n let inString = false;\n let escapeNext = false;\n \n for (let i = 0; i < text.length; i++) {\n const char = text[i];\n \n if (escapeNext) {\n escapeNext = false;\n currentJson += char;\n continue;\n }\n \n if (char === '\\\\') {\n escapeNext = true;\n currentJson += char;\n continue;\n }\n \n if (char === '\"' && !escapeNext) {\n inString = !inString;\n }\n \n if (!inString) {\n if (char === '{') {\n if (braceCount === 0) {\n currentJson = '';\n }\n braceCount++;\n } else if (char === '}') {\n braceCount--;\n }\n }\n \n currentJson += char;\n \n if (!inString && braceCount === 0 && currentJson.trim().endsWith('}')) {\n try {\n const parsed = JSON.parse(currentJson.trim());\n messages.push(parsed);\n currentJson = '';\n } catch (e) {\n // Continue accumulating\n }\n }\n }\n \n // Try to parse any remaining JSON\n if (currentJson.trim()) {\n try {\n const parsed = JSON.parse(currentJson.trim());\n messages.push(parsed);\n } catch (e) {\n console.warn('Could not parse remaining message:', currentJson.substring(0, 200) + '...');\n }\n }\n \n return messages;\n }\n}",[19,79],"dbfbaf3c-471c-11f0-abbb-76b3cceeab13","MessageGrouper.js","3331a712-471c-11f0-9115-76b3cceeab13",51,["D",1749684972376],1,"export class MessageGrouper {\n getMessageType(message) {\n if (message.method && message.id === undefined) {\n return 'notification';\n } else if (message.method && message.id !== undefined) {\n return 'request';\n } else if (message.result !== undefined || message.error !== undefined) {\n return 'response';\n } else {\n return 'unknown';\n }\n }\n\n isPingMessage(message) {\n const method = message.method || '';\n \n // Check if it's a ping request\n if (method.toLowerCase().includes('ping')) {\n return true;\n }\n \n // Check if it's a ping response (has result with \"pong\" or similar)\n if (message.result && typeof message.result === 'object') {\n const resultStr = JSON.stringify(message.result).toLowerCase();\n if (resultStr.includes('pong') || resultStr.includes('ping')) {\n return true;\n }\n }\n \n return false;\n }\n\n filterMessages(messages, hidePingMessages, messageTypeFilter = 'both') {\n let filteredMessages = messages;\n \n // Apply ping filtering\n if (hidePingMessages) {\n filteredMessages = filteredMessages.filter(message => !this.isPingMessage(message));\n }\n \n // Apply message type filtering\n if (messageTypeFilter !== 'both') {\n filteredMessages = filteredMessages.filter(message => {\n const type = this.getMessageType(message);\n \n if (messageTypeFilter === 'requests') {\n // Show requests and their responses\n return type === 'request' || type === 'response';\n } else if (messageTypeFilter === 'notifications') {\n // Show only notifications\n return type === 'notification';\n }\n \n return true;\n });\n }\n \n return filteredMessages;\n }\n\n groupMessages(messages, hidePingMessages, messageTypeFilter = 'both') {\n const groups = [];\n const requestMap = new Map();\n const ungroupedMessages = [];\n\n // Filter messages first\n const messagesToProcess = this.filterMessages(messages, hidePingMessages, messageTypeFilter);\n\n // First pass: collect all requests and responses\n messagesToProcess.forEach((message, originalIndex) => {\n const type = this.getMessageType(message);\n \n if (type === 'request') {\n requestMap.set(message.id, { \n request: message, \n requestIndex: originalIndex, \n response: null, \n responseIndex: -1 \n });\n } else if (type === 'response' && message.id !== undefined) {\n if (requestMap.has(message.id)) {\n const group = requestMap.get(message.id);\n group.response = message;\n group.responseIndex = originalIndex;\n } else {\n // Response without matching request (might be filtered out or orphaned)\n ungroupedMessages.push({ \n message, \n index: originalIndex, \n type: 'orphaned-response' \n });\n }\n } else {\n // Notifications and other messages\n ungroupedMessages.push({ \n message, \n index: originalIndex, \n type \n });\n }\n });\n\n // Add grouped request-response pairs, but filter out ping pairs if needed\n requestMap.forEach((group) => {\n // If hiding pings and this is a ping request, skip the entire pair\n if (hidePingMessages && this.isPingMessage(group.request)) {\n return;\n }\n \n groups.push({\n type: 'request-response-pair',\n request: group.request,\n response: group.response,\n requestIndex: group.requestIndex,\n responseIndex: group.responseIndex\n });\n });\n\n // Add ungrouped messages\n ungroupedMessages.forEach(item => {\n groups.push({\n type: 'single-message',\n message: item.message,\n messageType: item.type,\n index: item.index\n });\n });\n\n // Sort by the earliest index in each group (reverse order - newest first)\n groups.sort((a, b) => {\n const aIndex = a.type === 'request-response-pair' ? a.requestIndex : a.index;\n const bIndex = b.type === 'request-response-pair' ? b.requestIndex : b.index;\n return bIndex - aIndex; // Reversed: b - a instead of a - b\n });\n\n return groups;\n }\n\n getMessageDirection(message) {\n const type = this.getMessageType(message);\n \n // Heuristics for determining direction\n if (type === 'request') {\n // Most requests go from client to server\n return 'client-to-server';\n } else if (type === 'response') {\n // Responses go from server to client\n return 'server-to-client';\n } else if (type === 'notification') {\n // Notifications can go either way, use method name as hint\n const method = message.method || '';\n if (method.startsWith('textDocument/') || method.startsWith('workspace/')) {\n return 'client-to-server';\n } else {\n return 'server-to-client';\n }\n }\n return 'unknown';\n }\n}",[19,86],"e5f46fba-471c-11f0-80f6-76b3cceeab13","JsonRpcViewer.js","2110aace-471c-11f0-977c-76b3cceeab13",52,["D",1749684989103],6,"import { MessageParser } from './MessageParser.js';\nimport { MessageRenderer } from './MessageRenderer.js';\nimport { MessageGrouper } from './MessageGrouper.js';\n\nexport class JsonRpcViewer {\n constructor(config = {}) {\n this.config = config;\n this.messages = [];\n this.groupingEnabled = true;\n this.hidePingMessages = true; // Default to hiding pings\n this.messageTypeFilter = 'both'; // 'both', 'requests', 'notifications'\n \n this.parser = new MessageParser();\n this.grouper = new MessageGrouper();\n this.renderer = new MessageRenderer();\n \n this.initializeEventListeners();\n this.updatePingButtonState(); // Set initial button state\n this.updateMessageTypeButtons(); // Set initial message type button state\n }\n\n initializeEventListeners() {\n document.getElementById('parseBtn').addEventListener('click', () => this.parseMessages());\n document.getElementById('clearBtn').addEventListener('click', () => this.clearMessages());\n document.getElementById('collapseAllBtn').addEventListener('click', () => this.collapseAll());\n document.getElementById('expandAllBtn').addEventListener('click', () => this.expandAll());\n document.getElementById('toggleGroupBtn').addEventListener('click', () => this.toggleGrouping());\n document.getElementById('hidePingBtn').addEventListener('click', () => this.togglePingFilter());\n \n // Message type filter buttons\n document.getElementById('showBothBtn').addEventListener('click', () => this.setMessageTypeFilter('both'));\n document.getElementById('showRequestsBtn').addEventListener('click', () => this.setMessageTypeFilter('requests'));\n document.getElementById('showNotificationsBtn').addEventListener('click', () => this.setMessageTypeFilter('notifications'));\n }\n\n parseMessages() {\n const input = document.getElementById('jsonInput').value.trim();\n if (!input) return;\n\n try {\n this.messages = this.parser.extractJsonMessages(input);\n this.renderMessages();\n } catch (error) {\n alert('Error parsing messages: ' + error.message);\n }\n }\n\n updateMessageTypeButtons() {\n const buttons = {\n 'both': document.getElementById('showBothBtn'),\n 'requests': document.getElementById('showRequestsBtn'),\n 'notifications': document.getElementById('showNotificationsBtn')\n };\n\n Object.entries(buttons).forEach(([type, button]) => {\n if (button) {\n if (type === this.messageTypeFilter) {\n button.className = 'px-4 py-1 rounded-md text-sm font-medium transition-colors bg-blue-500 text-white';\n } else {\n button.className = 'px-4 py-1 rounded-md text-sm font-medium transition-colors text-gray-700 hover:text-gray-900';\n }\n }\n });\n }\n\n setMessageTypeFilter(filterType) {\n this.messageTypeFilter = filterType;\n this.updateMessageTypeButtons();\n this.renderMessages();\n }\n\n updatePingButtonState() {\n const btn = document.getElementById('hidePingBtn');\n if (btn) {\n btn.textContent = this.hidePingMessages ? 'Show Ping' : 'Hide Ping';\n btn.className = this.hidePingMessages \n ? 'bg-gray-500 hover:bg-gray-600 text-white px-6 py-2 rounded-lg font-medium transition-colors'\n : 'bg-orange-500 hover:bg-orange-600 text-white px-6 py-2 rounded-lg font-medium transition-colors';\n }\n }\n\n togglePingFilter() {\n this.hidePingMessages = !this.hidePingMessages;\n this.updatePingButtonState();\n this.renderMessages();\n }\n\n toggleGrouping() {\n this.groupingEnabled = !this.groupingEnabled;\n const btn = document.getElementById('toggleGroupBtn');\n btn.textContent = this.groupingEnabled ? 'Show Individual' : 'Show Grouped';\n this.renderMessages();\n }\n\n renderMessages() {\n const container = document.getElementById('messagesContainer');\n container.innerHTML = '';\n\n if (this.messages.length === 0) {\n container.innerHTML = '

No messages to display

';\n return;\n }\n\n if (this.groupingEnabled) {\n this.renderGroupedMessages(container);\n } else {\n this.renderIndividualMessages(container);\n }\n }\n\n renderGroupedMessages(container) {\n const groups = this.grouper.groupMessages(this.messages, this.hidePingMessages, this.messageTypeFilter);\n const requestResponsePairs = groups.filter(g => g.type === 'request-response-pair').length;\n const singleMessages = groups.filter(g => g.type === 'single-message').length;\n \n const filteredMessages = this.grouper.filterMessages(this.messages, this.hidePingMessages, this.messageTypeFilter);\n const hiddenCount = this.messages.length - filteredMessages.length;\n\n const headerDiv = this.renderer.createHeader(\n 'Grouped Messages',\n `Found ${filteredMessages.length} messages (newest first): ${requestResponsePairs} request-response pairs, ${singleMessages} individual messages`,\n hiddenCount,\n this.messageTypeFilter\n );\n container.appendChild(headerDiv);\n\n groups.forEach((group) => {\n if (group.type === 'request-response-pair') {\n const pairElement = this.renderer.createRequestResponsePairElement(group);\n container.appendChild(pairElement);\n } else {\n const messageElement = this.renderer.createMessageElement(group.message, group.index);\n container.appendChild(messageElement);\n }\n });\n }\n\n renderIndividualMessages(container) {\n const filteredMessages = this.grouper.filterMessages(this.messages, this.hidePingMessages, this.messageTypeFilter);\n const hiddenCount = this.messages.length - filteredMessages.length;\n\n const headerDiv = this.renderer.createHeader(\n 'Individual Messages',\n `Found ${filteredMessages.length} JSON-RPC messages (newest first)`,\n hiddenCount,\n this.messageTypeFilter\n );\n container.appendChild(headerDiv);\n\n // Reverse the order - newest first\n const reversedMessages = [...filteredMessages].reverse();\n reversedMessages.forEach((message, index) => {\n const messageElement = this.renderer.createMessageElement(message, filteredMessages.length - 1 - index);\n container.appendChild(messageElement);\n });\n }\n\n clearMessages() {\n document.getElementById('jsonInput').value = '';\n document.getElementById('messagesContainer').innerHTML = '';\n this.messages = [];\n }\n\n collapseAll() {\n // Collapse individual message content\n const collapsibleElements = document.querySelectorAll('.collapsible-content');\n collapsibleElements.forEach(el => el.classList.add('collapsed'));\n \n // Collapse request-response pairs\n const pairContents = document.querySelectorAll('.pair-content');\n pairContents.forEach(el => el.style.display = 'none');\n \n // Update button texts\n document.querySelectorAll('button').forEach(btn => {\n if (btn.textContent === 'Collapse') {\n btn.textContent = 'Expand';\n } else if (btn.textContent === 'Collapse Pair') {\n btn.textContent = 'Expand Pair';\n }\n });\n }\n\n expandAll() {\n // Expand individual message content\n const collapsibleElements = document.querySelectorAll('.collapsible-content');\n collapsibleElements.forEach(el => el.classList.remove('collapsed'));\n \n // Expand request-response pairs\n const pairContents = document.querySelectorAll('.pair-content');\n pairContents.forEach(el => el.style.display = 'block');\n \n // Update button texts\n document.querySelectorAll('button').forEach(btn => {\n if (btn.textContent === 'Expand') {\n btn.textContent = 'Collapse';\n } else if (btn.textContent === 'Expand Pair') {\n btn.textContent = 'Collapse Pair';\n }\n });\n }\n}",[19,94],"2110bfb4-471c-11f0-977c-76b3cceeab13",32,["D",1749684658781],"directory",[19],{"_39":154,"_13":155,"_42":156,"_44":-5,"_46":47,"_48":157,"_50":51,"_52":158,"_17":54,"_55":104,"_57":-5,"_59":60,"_61":-5,"_117":159,"_18":160},{"_39":101,"_13":19,"_42":45,"_44":-5,"_46":47,"_48":102,"_50":51,"_52":127,"_17":54,"_55":104,"_57":-5,"_59":60,"_61":-5,"_117":128,"_18":129},{"_39":120,"_13":64,"_42":121,"_44":-5,"_46":47,"_48":122,"_50":51,"_52":123,"_17":75,"_55":24,"_57":124,"_59":60,"_61":-5,"_117":125,"_18":126},{"_39":110,"_13":111,"_42":112,"_44":-5,"_46":47,"_48":113,"_50":51,"_52":114,"_17":90,"_55":115,"_57":116,"_59":60,"_61":-5,"_117":118,"_18":119},"5dcfee52-471c-11f0-a57a-76b3cceeab13","main.ts","006ad326-471c-11f0-9092-76b3cceeab13",39,["D",1749684760695],"http","import { Hono } from \"https://esm.sh/hono@4.6.3\";\nimport { readFile, serveFile } from \"https://esm.town/v/std/utils@85-main/index.ts\";\n\nconst app = new Hono();\n\n// Unwrap Hono errors to see original error details\napp.onError((err, c) => {\n throw err;\n});\n\n// Serve static files\napp.get(\"/frontend/*\", c => serveFile(c.req.path, import.meta.url));\napp.get(\"/shared/*\", c => serveFile(c.req.path, import.meta.url));\n\n// Main route - serve the HTML with initial data\napp.get(\"/\", async c => {\n let html = await readFile(\"/frontend/index.html\", import.meta.url);\n \n // Inject any initial configuration if needed\n const configScript = ``;\n \n html = html.replace(\"\", `${configScript}`);\n return c.html(html);\n});\n\n// API endpoint for health check\napp.get(\"/api/health\", c => {\n return c.json({ status: \"ok\", timestamp: new Date().toISOString() });\n});\n\nexport default app.fetch;","children",[],[111],"7081d79a-471c-11f0-a8e9-76b3cceeab13","3472b776-471a-11f0-8402-76b3cceeab13",40,["D",1749684792058],"# JSON-RPC Viewer\n\nA web-based tool for parsing and visualizing JSON Lines containing JSON-RPC messages. Perfect for analyzing Language Server Protocol (LSP) logs, debugging API communications, and understanding request-response flows.\n\n## 🚀 How to Use\n\n### 1. **Input Your Data**\nPaste your JSON-RPC communication logs into the textarea. The tool accepts:\n- Raw JSON Lines (one JSON object per line)\n- Messages with Content-Length headers (LSP format)\n- Mixed formats with varying whitespace\n\n### 2. **Parse & Visualize**\nClick **\"Parse Messages\"** to extract and display the JSON-RPC messages with:\n- **Request-Response Grouping**: Related messages are paired together\n- **Direction Indicators**: Client → Server vs Server → Client\n- **Message Types**: REQUEST, RESPONSE, NOTIFICATION\n- **Method Names & IDs**: Clearly labeled for easy identification\n\n### 3. **Control Your View**\nUse the toolbar buttons to customize the display:\n- **Toggle Grouping**: Switch between grouped pairs and chronological order\n- **Hide Ping**: Filter out noisy ping/keepalive messages\n- **Collapse/Expand All**: Minimize or maximize all message content\n- **Individual Controls**: Collapse/expand specific messages or pairs\n\n## 📋 Example Input Format\n\n```\nContent-Length: 87\n\n{\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"initialize\",\"params\":{\"capabilities\":{}}}\nContent-Length: 45\n\n{\"jsonrpc\":\"2.0\",\"id\":1,\"result\":{\"capabilities\":{}}}\nContent-Length: 52\n\n{\"jsonrpc\":\"2.0\",\"method\":\"initialized\",\"params\":{}}\n```\n\n## ✨ Key Features\n\n- **Smart Grouping**: Automatically pairs requests with their responses\n- **Ping Filtering**: Hide noisy keepalive messages with one click\n- **Visual Distinction**: Color-coded messages with clear direction indicators\n- **Flexible Views**: Toggle between grouped and chronological display\n- **Newest First**: Messages displayed in reverse chronological order\n- **Responsive Design**: Works on desktop and mobile devices\n- **Privacy-First**: All parsing happens client-side, no data sent to servers\n\n## 🏗️ Architecture\n\nThe application is organized into a clean, modular structure:\n\n```\n├── main.ts # Hono backend entry point\n├── frontend/ # Client-side application\n│ ├── index.html # Main HTML template\n│ ├── style.css # Custom styles\n│ ├── app.js # Application initialization\n│ └── README.md\n├── shared/ # Shared components\n│ ├── JsonRpcViewer.js # Main application orchestrator\n│ ├── MessageParser.js # JSON parsing logic\n│ ├── MessageGrouper.js# Message organization & filtering\n│ ├── MessageRenderer.js# DOM creation & visualization\n│ ├── utils.js # Shared utilities\n│ └── README.md\n└── README.md\n```\n\n### Component Responsibilities\n\n- **Backend (Hono)**: Static file serving and API endpoints\n- **Frontend**: User interface and interaction handling\n- **Shared**: Core business logic that works in both environments\n\n## 🎯 Perfect For\n\n- **LSP Analysis**: Debug Language Server Protocol communications\n- **API Development**: Visualize JSON-RPC API request/response flows\n- **Protocol Debugging**: Understand complex message sequences\n- **Documentation**: Create visual representations of API interactions\n- **Learning**: Study how JSON-RPC protocols work in practice\n\n## 🔧 Technical Notes\n\n- Built with Hono backend and vanilla JavaScript frontend\n- ES6 modules with no build step required\n- TailwindCSS for responsive styling\n- Handles malformed JSON gracefully with error reporting\n- Supports large message logs with efficient parsing\n- No external dependencies or data 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{\n font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;\n font-size: 12px;\n line-height: 1.4;\n}\n\n.collapsible-content {\n max-height: 200px;\n overflow-y: auto;\n transition: max-height 0.3s ease;\n}\n\n.collapsed {\n max-height: 40px;\n}\n\n/* Custom scrollbar for JSON content */\n.json-content::-webkit-scrollbar {\n width: 8px;\n height: 8px;\n}\n\n.json-content::-webkit-scrollbar-track {\n background: #f1f1f1;\n border-radius: 4px;\n}\n\n.json-content::-webkit-scrollbar-thumb {\n background: #c1c1c1;\n border-radius: 4px;\n}\n\n.json-content::-webkit-scrollbar-thumb:hover {\n background: #a8a8a8;\n}\n\n/* Side-by-side layout improvements */\n.pair-content .grid {\n align-items: start;\n}\n\n.pair-content .grid > div {\n min-height: 150px;\n}\n\n/* Responsive button layout */\n@media (max-width: 768px) {\n .button-container {\n flex-direction: column;\n gap: 0.5rem;\n }\n \n .button-container button {\n width: 100%;\n }\n \n /* Stack vertically on mobile */\n .pair-content .grid {\n grid-template-columns: 1fr;\n }\n \n /* Make toggle buttons stack on mobile */\n .button-container > div {\n width: 100%;\n }\n \n .button-container > div > button {\n flex: 1;\n }\n}\n\n/* Message type filter toggle styling */\n.button-container > div {\n display: flex;\n background-color: #e5e7eb;\n border-radius: 0.5rem;\n padding: 0.25rem;\n}\n\n.button-container > div > button {\n flex: 1;\n text-align: center;\n white-space: nowrap;\n}\n\n/* Better spacing for request-response pairs */\n.pair-content {\n margin-top: 1rem;\n}\n\n/* Ensure equal height columns */\n.pair-content .grid > div {\n display: flex;\n flex-direction: column;\n}\n\n.pair-content .json-content {\n flex: 1;\n}",[],[155,166],"bcd48836-471c-11f0-a0bb-76b3cceeab13","index.html","0b868ef8-471c-11f0-b65e-76b3cceeab13",47,["D",1749684920106],"\n\n\n \n \n JSON-RPC Viewer\n \n \n \n\n\n

JSON-RPC Viewer

\n \n

📋 What is this tool for?

\n This tool parses and visualizes JSON Lines containing JSON-RPC messages. \n It's particularly useful for analyzing Language Server Protocol (LSP) logs, API debugging, \n and understanding request-response flows.\n

📝 Show example input format

Content-Length: 87\n\n{\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"initialize\",\"params\":{\"capabilities\":{}}}\nContent-Length: 45\n\n{\"jsonrpc\":\"2.0\",\"id\":1,\"result\":{\"capabilities\":{}}}\nContent-Length: 52\n\n{\"jsonrpc\":\"2.0\",\"method\":\"initialized\",\"params\":{}}

\n \n

Paste JSON-RPC Messages

\n \n

\n \n \n \n \n

\n \n \n

\n \n \n \n

\n\n

\n \n

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