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Add support for prompts and resource templates in MCP bridge
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‎mcp-bridge/main.js‎

Lines changed: 209 additions & 1 deletion
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#!/usr/bin/env node
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// JSON-RPC stdio transport
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// Group management
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// ===================================================================
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/**
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* Fetch the list of available groups.
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* @returns {Promise<Array<{id: string, name: string, description: string}>>}
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*/
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async function fetchGroups() {
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// For now, return a static list of groups. This can be extended to fetch
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// groups from a configuration file or database.
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return [
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{ id: "database", name: "Database", description: "Database-related tools" },
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{ id: "cloud", name: "Cloud", description: "Cloud-related tools" },
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{ id: "git", name: "Git", description: "Git-related tools" },
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{ id: "comms", name: "Comms", description: "Communication-related tools" },
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];
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}
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=======
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// ===================================================================
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// Prompt management
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// ===================================================================
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/**
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* Fetch the list of available prompts.
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* @returns {Promise<Array<{id: string, name: string, description: string}>>}
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*/
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async function fetchPrompts() {
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// For now, return a static list of prompts. This can be extended to fetch
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// prompts from a configuration file or database.
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return [
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{ id: "project-analysis", name: "Project Analysis", description: "Analyze a project and suggest improvements" },
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{ id: "code-review", name: "Code Review", description: "Review code and detect code smells" },
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{ id: "research", name: "Research", description: "Research a topic and summarize findings" },
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];
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}
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/**
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* Fetch a specific prompt by ID.
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* @param {string} promptId
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* @returns {Promise<{id: string, name: string, description: string, template: string} | null>}
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*/
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async function fetchPrompt(promptId) {
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// For now, return a static prompt. This can be extended to fetch
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// prompts from a configuration file or database.
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const prompts = [
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{
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id: "project-analysis",
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name: "Project Analysis",
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description: "Analyze a project and suggest improvements",
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template: "Analyze this repository and suggest improvements",
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},
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{
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id: "code-review",
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name: "Code Review",
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description: "Review code and detect code smells",
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template: "Review this code and detect code smells",
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},
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{
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id: "research",
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name: "Research",
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description: "Research a topic and summarize findings",
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template: "Research this topic and summarize findings",
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},
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];
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return prompts.find((p) => p.id === promptId) || null;
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}
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// ===================================================================
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// Resource management
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// ===================================================================
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/**
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* Fetch the list of available resources.
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* @returns {Promise<Array<{id: string, name: string, description: string}>>}
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*/
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async function fetchResources() {
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// For now, return a static list of resources. This can be extended to fetch
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// resources from a configuration file or database.
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return [
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{ id: "knowledge-graph", name: "Knowledge Graph", description: "Knowledge graph for storing and managing contextual data" },
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{ id: "sessions", name: "Sessions", description: "Session management for persistent session state" },
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{ id: "learnings", name: "Learnings", description: "Learning system for capturing and organizing knowledge" },
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];
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}
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/**
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* Fetch a specific resource by ID.
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* @param {string} resourceId
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* @returns {Promise<{id: string, name: string, description: string, schema: object} | null>}
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*/
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async function fetchResource(resourceId) {
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// For now, return a static resource. This can be extended to fetch
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// resources from a configuration file or database.
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const resources = [
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{
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id: "knowledge-graph",
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name: "Knowledge Graph",
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description: "Knowledge graph for storing and managing contextual data",
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schema: {
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type: "object",
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properties: {
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entities: { type: "array", items: { type: "object" } },
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observations: { type: "array", items: { type: "object" } },
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relations: { type: "array", items: { type: "object" } },
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},
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},
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},
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{
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id: "sessions",
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name: "Sessions",
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description: "Session management for persistent session state",
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schema: {
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type: "object",
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properties: {
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id: { type: "string" },
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project: { type: "string" },
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started_at: { type: "string", format: "date-time" },
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ended_at: { type: "string", format: "date-time", nullable: true },
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summary: { type: "string" },
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context: { type: "array", items: { type: "string" } },
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},
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},
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},
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{
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id: "learnings",
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name: "Learnings",
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description: "Learning system for capturing and organizing knowledge",
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schema: {
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type: "object",
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properties: {
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id: { type: "string" },
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category: { type: "string" },
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content: { type: "string" },
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tags: { type: "array", items: { type: "string" } },
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confidence: { type: "number", minimum: 0, maximum: 1 },
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project: { type: "string", nullable: true },
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created_at: { type: "string", format: "date-time" },
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updated_at: { type: "string", format: "date-time" },
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},
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},
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},
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];
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return resources.find((r) => r.id === resourceId) || null;
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}
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// ===================================================================
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// Group management
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// ===================================================================
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/**
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* Fetch the list of available groups.
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* @returns {Promise<Array<{id: string, name: string, description: string}>>}
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*/
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async function fetchGroups() {
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// For now, return a static list of groups. This can be extended to fetch
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// groups from a configuration file or database.
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return [
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{ id: "database", name: "Database", description: "Database-related tools" },
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{ id: "cloud", name: "Cloud", description: "Cloud-related tools" },
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{ id: "git", name: "Git", description: "Git-related tools" },
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{ id: "comms", name: "Comms", description: "Communication-related tools" },
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];
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}JSON-RPC stdio transport
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// ===================================================================
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let buffer = "";
@@ -546,6 +710,50 @@ async function handleMessage(line) {
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break;
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}
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case "prompts/list": {
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const prompts = await fetchPrompts();
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sendResult(id, { prompts });
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break;
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}
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case "prompts/get": {
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const promptId = params?.promptId;
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if (!promptId) {
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sendError(id, -32602, "Prompt ID is required");
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break;
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}
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const prompt = await fetchPrompt(promptId);
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if (prompt === null) {
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sendError(id, -32601, "Unknown prompt");
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} else {
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sendResult(id, { prompt });
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}
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break;
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}
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case "resources/list": {
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const resources = await fetchResources();
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sendResult(id, { resources });
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break;
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}
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case "resources/get": {
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const resourceId = params?.resourceId;
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if (!resourceId) {
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sendError(id, -32602, "Resource ID is required");
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break;
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}
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const resource = await fetchResource(resourceId);
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if (resource === null) {
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sendError(id, -32601, "Unknown resource");
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} else {
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sendResult(id, { resource });
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}
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break;
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}
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case "ping":
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sendResult(id, {});
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break;

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