Ability for HAR convert to filter by substrings from the entire URL

[SaberStrat]

According to the source of convert.go, the HAR converter currently supports the filters only and skip that only accept a domain string.

It would be cool if the converter could also filter by substrings (maybe regex even) from the entire URL - i.e. parsing the domain, the path and the query. JMeter, for instance, supports this in its Script Recorder.

For example, something like:
k6 convert --only .*.jsp.* --skip .*ads\..*,.*analysics.js.* myfile.har with regex or
k6 convert --only .jsp --skip ads.,analysics.js myfile.har for substring matches.

[na--]

I think having a regex filter would be more useful, even if it's a bit more complex for users.

[ppcano]

k6 deprecated the k6 convert support at #1124. We built a har-to-k6 converter to make k6 independent from this type of logic.

To filter the content of the recorded session, you can use a regex on the Browser Developer Tools to skip domains from the recorded HAR file.

You can read how to filter domains on the Remove third-party content section of the Session recording guide. Please, let us know if there is something we should improve.

Closing the issue.

[mstoykov]

For the record, we then reverted the deprecation in #1268 because har-to-k6 converter still didn't have full feature parity with the current converter, specifically it still doesn't support creating http.batch requests.

[na--]

@ppcano, browsers are not the only tools that generate HAR files, and it's not always easy to filter out domains or URLs. So, I think a feature in the HAR converter to do it would be a good idea, albeit one with a relatively low priority. So, I created grafana/har-to-k6#39...

[timkrins]

Because HAR files are just JSON, it is fairly easy to create a script to pre-filter the HAR based on regex.
Here is a gist I wrote that I use with Chrome exported HARs.
https://gist.github.com/timkrins/229bb64598797b41beb70f43381ad6de