added fastapi support and corresponding example

.gitignore

@@ -2,6 +2,7 @@
 data/
 .vscode/
 my_testing/
+autometrics-venv/
 
 # Byte-compiled / optimized / DLL files
 __pycache__/

examples/fastapi-example.py

@@ -6,22 +6,18 @@
 app = FastAPI()
 
 @app.get("/metrics")
-async def metrics():
+def metrics():
     return Response(generate_latest())
 
-@autometrics
 @app.get("/")
-async def read_root():
-    print("This is inside the read_root")
+@autometrics
+def read_root():
     do_something()
     return {"Hello": "World"}
 
 @autometrics
 def do_something():
     print("done")
 
-print(read_root.__doc__)
-print(do_something.__doc__)
-
-if __name__ == "__main__":
+if __name__ == "__main__":    
     uvicorn.run(app, host="localhost", port=8080)

requirements.txt

@@ -1,7 +1,16 @@
-certifi==2022.12.7
-charset-normalizer==2.1.1
+anyio==3.6.2
+build==0.10.0
+click==8.1.3
+fastapi==0.95.0
+h11==0.14.0
 idna==3.4
+packaging==23.0
 prometheus-client==0.16.0
-requests==2.28.1
-urllib3==1.26.13
-python-dotenv==0.21.1
+pydantic==1.10.6
+pyproject_hooks==1.0.0
+python-dotenv==1.0.0
+sniffio==1.3.0
+starlette==0.26.1
+typing_extensions==4.5.0
+urllib3==1.26.15
+uvicorn==0.21.1

setup.cfg

@@ -1,7 +1,5 @@
 [metadata]
-author = fiberplane
-author_email = [email protected] 
-description = Autometrics package for python
+ description = Autometrics package for python
 long_description = file: README.md
 long_description_content_type = text/markdown
 url = https://github.com/autometrics-dev/autometrics-py

setup.py

@@ -6,7 +6,6 @@
     packages=find_packages(),
     install_requires=[
         'prometheus_client',
-        'prometheus_api_client',
         'python-dotenv'
     ]
 )

src/autometrics/autometrics.py

@@ -3,6 +3,7 @@
 import inspect
 from .prometheus_url import Generator
 import os
+from functools import wraps
 
 prom_counter = Counter('function_calls_count', 'query??', ['function', 'module', 'result'])
 prom_histogram = Histogram('function_calls_duration', 'query??', ['function', 'module'])
@@ -17,6 +18,7 @@ def autometrics(func):
     else:
         classname = func.__qualname__.rsplit('.', 1)[0]
         module_name = f"{filename}.{classname}"
+    @wraps(func)
     def wrapper(*args, **kwargs):
         func_name = func.__name__
         start_time = time.time()