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Utilities and wrappers for using AWS X-Ray with Python

License: MIT License

Python 100.00%

aws-xray python amazon-web-services wsgi-middleware apm performance-monitoring

xrayvision's Introduction

NOTE

AWS has released the beta version of their Python X-ray SDK - check it out here: https://aws.amazon.com/about-aws/whats-new/2017/08/aws-x-ray-sdk-for-python-beta/

xrayvision

Utilities and wrappers for using AWS X-Ray with Python

WSGI Apps

Simply add the middleware to your app. For example, if you use Flask:

from xrayvision.ext.wsgi import XRayMiddleware

app = Flask(__name__)
app.wsgi_app = XRayMiddleware(app.wsgi_app)

You can add subsegments with the global_segment:

from xrayvision import global_segment

...

with global_segment.add_subsegment('my custom loop') as segment:
    try:
        # do stuff
    except:
        segment.add_exception()

Requests

Requests must be patched as early as possible in your code.

import requests
import xrayvision

xrayvision.patch('requests')

xrayvision's People

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chrisbyboston mbeacom debroys martysweet dnmellen tassio finaxar

xrayvision's Issues

Needs tests

Needs tests against python 2.7 and 3.6

Trace ID does not match lambda trace ID

For some reason the trace header coming into a WSGI app is not matching the trace from api gateway -> lambda. Needs investigation.

OPTIONS Method thorw 500 error

Hi. I'm using Zappa with xrayvision.

It works almost normarlly, But when i requested with OPTIONS method throw exception.

Response

"{u'message': u'An uncaught exception happened while servicing this request. You can investigate this with the `zappa tail` command.', u'traceback': ['Traceback (most recent call last):\\n', '  File \"/var/task/handler.py\", line 433, in handler\\n    response = Response.from_app(self.wsgi_app, environ)\\n', '  File \"/var/task/werkzeug/wrappers.py\", line 859, in from_app\\n    return cls(*_run_wsgi_app(app, environ, buffered))\\n', '  File \"/var/task/werkzeug/test.py\", line 886, in run_wsgi_app\\n    buffer.append(next(app_iter))\\n', '  File \"/var/task/werkzeug/wsgi.py\", line 693, in __next__\\n    return self._next()\\n', 'StopIteration\\n']}"

But in the AWS X-Ray, I can see that request status is 200 OK.

Dose this problem happen only to me?

Needs sampling

Not every trace should make it to X-ray - implement a sampling algorithm

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