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proc
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self
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root
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opt
/
hc_python
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lib64
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python3.8
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site-packages
/
prometheus_client
/
Filename :
asgi.py
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from typing import Callable from urllib.parse import parse_qs from .exposition import _bake_output from .registry import CollectorRegistry, REGISTRY def make_asgi_app(registry: CollectorRegistry = REGISTRY, disable_compression: bool = False) -> Callable: """Create a ASGI app which serves the metrics from a registry.""" async def prometheus_app(scope, receive, send): assert scope.get("type") == "http" # Prepare parameters params = parse_qs(scope.get('query_string', b'')) accept_header = ",".join([ value.decode("utf8") for (name, value) in scope.get('headers') if name.decode("utf8").lower() == 'accept' ]) accept_encoding_header = ",".join([ value.decode("utf8") for (name, value) in scope.get('headers') if name.decode("utf8").lower() == 'accept-encoding' ]) # Bake output status, headers, output = _bake_output(registry, accept_header, accept_encoding_header, params, disable_compression) formatted_headers = [] for header in headers: formatted_headers.append(tuple(x.encode('utf8') for x in header)) # Return output payload = await receive() if payload.get("type") == "http.request": await send( { "type": "http.response.start", "status": int(status.split(' ')[0]), "headers": formatted_headers, } ) await send({"type": "http.response.body", "body": output}) return prometheus_app