issue with integrating createUIResource with python sdk #103
Description
I am trying to leverage mcp-ui with my python sdk
import { createUIResource } from '@mcp-ui/server';
const input = process.argv[2]; // Expect a JSON string as the first argument
const params = JSON.parse(input);
const uiResource = createUIResource(params);
console.log(JSON.stringify(uiResource));
import subprocess
import json
def create_ui_resource_py(params):
import os
# Get absolute path to create_ui_resource.js in the same directory
node_script = os.path.join(os.path.dirname(__file__), 'create_ui_resource.mjs')
args = [json.dumps(params)]
result = subprocess.run(
['node', node_script] + args,
capture_output=True,
text=True
)
if result.returncode != 0:
raise RuntimeError(f"Node.js error: {result.stderr}")
return json.loads(result.stdout)
@register_as_tool
@with_header_auth(ApplicationAnalyzeApi)
async def get_all_traces(
self,
payload: Optional[Union[Dict[str, Any], str]] = None,
api_client=None,
ctx=None,
) -> Dict[str, Any]:
"""
Get all traces in the monitoring.
This tool endpoint retrieves the metrics for traces.
Sample payload:
{
"includeInternal": false,
"includeSynthetic": false,
"pagination": { "retrievalSize": 1 },
"tagFilterExpression": {
"type": "EXPRESSION",
"logicalOperator": "AND",
"elements": [
{
"type": "TAG_FILTER",
"name": "endpoint.name",
"operator": "EQUALS",
"entity": "DESTINATION",
"value": "GET /"
},
{
"type": "TAG_FILTER",
"name": "service.name",
"operator": "EQUALS",
"entity": "DESTINATION",
"value": "groundskeeper"
}
]
},
"order": { "by": "traceLabel", "direction": "DESC" }
}
Returns:
Union[Dict[str, Any]]: Structured traces data with summary statistics and analysis.
"""
try:
# Parse the payload if it's a string
if isinstance(payload, str):
logger.debug("Payload is a string, attempting to parse")
try:
try:
parsed_payload = json.loads(payload)
logger.debug("Successfully parsed payload as JSON")
request_body = parsed_payload
except json.JSONDecodeError as e:
logger.debug(f"JSON parsing failed: {e}, trying with quotes replaced")
# Try replacing single quotes with double quotes
fixed_payload = payload.replace("'", "\"")
try:
parsed_payload = json.loads(fixed_payload)
logger.debug("Successfully parsed fixed JSON")
request_body = parsed_payload
except json.JSONDecodeError:
# Try as Python literal
try:
parsed_payload = ast.literal_eval(payload)
logger.debug("Successfully parsed payload as Python literal")
request_body = parsed_payload
except (SyntaxError, ValueError) as e2:
logger.debug(f"Failed to parse payload string: {e2}")
return {"error": f"Invalid payload format: {e2}", "payload": payload}
except Exception as e:
logger.debug(f"Error parsing payload string: {e}")
return {"error": f"Failed to parse payload: {e}", "payload": payload}
else:
# If payload is already a dictionary, use it directly
logger.debug("Using provided payload dictionary")
request_body = payload
# GetTraces is already imported at the top of the file
logger.debug("Using GetTraces from top-level import")
# Create an GetTraces object from the request body
try:
query_params = {}
if request_body and "tag_filter_expression" in request_body:
query_params["tag_filter_expression"] = request_body["tag_filter_expression"]
logger.debug(f"Creating get_traces with params: {query_params}")
config_object = GetTraces(**query_params)
logger.debug("Successfully got traces")
except Exception as e:
logger.debug(f"Error creating get_traces: {e}")
return {"error": f"Failed to get traces: {e!s}"}
# Call the get_traces method from the SDK
logger.debug("Calling get_traces with config object")
result = api_client.get_traces(get_traces=config_object)
result_dict = result.to_dict() if hasattr(result, "to_dict") else (result or {})
# Build UI resource with trace data
trace_items = result_dict.get('items', [])
html_content = (
'<h2>Instana Traces Dashboard</h2>'
f'<p>Total traces: {len(trace_items)}</p>'
f'<pre>{json.dumps(trace_items, indent=2)}</pre>'
)
# Use rawHtml content type as it's the most direct approach
content = {
"type": "rawHtml",
"htmlString": html_content
}
params = {
"uri": "ui://instana-traces",
"content": content,
"encoding": "text",
"mimeType": "text/html",
"name": "Instana Traces Dashboard",
"description": "Real-time traces from Instana monitoring platform",
"uiMetadata": {
"mcpui.dev/ui-title": "Instana Traces Dashboard",
"mcpui.dev/ui-icon": "📊",
"mcpui.dev/ui-category": "monitoring",
"mcpui.dev/ui-renderMode": "inline"
},
"metadata": {
"source": "instana",
"type": "dashboard",
"refreshable": True
}
}
ui_resource = create_ui_resource_py(params)
return {"content": [ui_resource]}
except Exception as e:
logger.error(f"Error in get_all_traces: {e}")
return {"error": f"Failed to get traces: {e!s}"}
but I see no UI being rendered.
{"content":[{"type":"resource","resource":{"uri":"ui://instana-traces","mimeType":"text/html","text":"<h2>Instana Traces Dashboard</h2><p>Total traces: 200</p><pre>[\n {\n \"cursor\": {\n \"service\": {\n \"entityType\": \"SERVICE\",\n }\n }\n]</pre>","_meta":{"mcpui.dev/ui-mcpui.dev/ui-title":"Instana Traces Dashboard","mcpui.dev/ui-mcpui.dev/ui-icon":"📊","mcpui.dev/ui-mcpui.dev/ui-category":"monitoring","mcpui.dev/ui-mcpui.dev/ui-renderMode":"inline","source":"instana","type":"dashboard","refreshable":true}}}]}