Charging by bandwidth used

how to implement

[kris_winter]

Im considering offering a service that allows users to upload a file and then charges by the amount of bandwidth used by clients downloading. the only way i can think of implementing this is by examing the log files for the bytes transferred figures. Is there a better way?

[carguy84]

that may give inaccurate results as the log file will still show an image as being "requested" even if the user is pulling it from cache I believe.

[kris_winter]

It will show it as requested by i wouldnt expect to see any bytes transferred for it. Ill need to check that out first though.

[mrMister]

Yes, you can add bytes received and bytes sent to the logs. If I remember correctly, it is accurate (eg, a partially retreived file will only show the actual bytes sent rather than the total file size.