diagrams.net-intellij-plugin/mcp-test-requests.http at main · docToolchain/diagrams.net-intellij-plugin · GitHub

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### MCP Streamable HTTP Transport - Test Requests
### Use these requests in IntelliJ IDEA's HTTP Client to test the MCP endpoint

### Default port (change if using a different port)
@port = 8765

### ===========================================================================
### MCP JSON-RPC 2.0 Protocol Requests
### ===========================================================================

### Initialize - Start MCP session
POST http://localhost:{{port}}/mcp
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "initialize",
  "params": {
    "protocolVersion": "2024-11-05",
    "capabilities": {},
    "clientInfo": {
      "name": "http-client-test",
      "version": "1.0"
    }
  }
}

### Initialized notification - Acknowledge initialization
POST http://localhost:{{port}}/mcp
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "method": "initialized"
}

### Ping - Check server responsiveness
POST http://localhost:{{port}}/mcp
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "ping"
}

### Tools/List - Get available tools
POST http://localhost:{{port}}/mcp
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "id": 3,
  "method": "tools/list"
}

### ===========================================================================
### Tool Calls
### ===========================================================================

### list_diagrams - List all open diagrams
POST http://localhost:{{port}}/mcp
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "id": 10,
  "method": "tools/call",
  "params": {
    "name": "list_diagrams",
    "arguments": {}
  }
}

### get_diagram_by_id - Get diagram content (replace ID with actual diagram ID)
POST http://localhost:{{port}}/mcp
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "id": 11,
  "method": "tools/call",
  "params": {
    "name": "get_diagram_by_id",
    "arguments": {
      "id": "YOUR_DIAGRAM_ID_HERE"
    }
  }
}

### update_diagram - Update diagram content (replace ID and XML)
POST http://localhost:{{port}}/mcp
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "id": 12,
  "method": "tools/call",
  "params": {
    "name": "update_diagram",
    "arguments": {
      "id": "YOUR_DIAGRAM_ID_HERE",
      "xml": "<mxGraphModel><root><mxCell id=\"0\"/><mxCell id=\"1\" parent=\"0\"/></root></mxGraphModel>"
    }
  }
}

### ===========================================================================
### Error Cases
### ===========================================================================

### Unknown method
POST http://localhost:{{port}}/mcp
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "id": 99,
  "method": "unknown/method"
}

### Missing method
POST http://localhost:{{port}}/mcp
Content-Type: application/json

{
  "jsonrpc": "2.0",
  "id": 98
}

### Invalid JSON-RPC version
POST http://localhost:{{port}}/mcp
Content-Type: application/json

{
  "jsonrpc": "1.0",
  "id": 97,
  "method": "initialize"
}

### ===========================================================================
### Health Check
### ===========================================================================

### Root endpoint (health check)
GET http://localhost:{{port}}/