Support for AxiosInstance, baseURL, queryParameters in URL and multiple sessions

[steilerDev]

Hey @BeataKr ,

thank you very much for this very useful library - I've been using it in my own project to capture my application's network traffic and use it to debug.

I've found some enhancements / bug fixes that I would love to be part of your library:

• I'm initiating AxiosInstance (using axios.createInstance(...)) - your library currently expects AxiosStatic (which inherits from AxiosInstance). I don't think you are using any of the AxiosStatic specific functions, which is why this is a drop in replacement (simply a typing change)
• My instances use the baseURL configuration - this is currently not tracked by this library. From the Axios Docs: "baseURL will be prepended to url unless url is absolute", which is why I've added a getURL function that determines if url is absolute or not and tracks this correctly
• Query parameters, that are configured through config.params are currently not applied to the URL (as expected by the standard) - getURL handles this as well
• I'm using an axios instance across multiple sessions and want to be able to reset the har file between those sessions. For this use case, clearing the object is sufficient - since it's private I can not easily access it. I've added a public function to resetHar()
• I'm optionally adding the possibility to configure the har file 'creator'

Finally I've added tests for the query parameters as well as base URL behaviour. I hope you'll accept this PR and can merge it into production soon :) LMK if you have questions!

[BeataKr]

Thank you for contribution! 🍀 I’ll review changes in coming days! Look out for a new version ✌🏻

[BeataKr]

https://github.com/BeataKr/axios-har-tracker/pull/16

[BeataKr]

released as 0.6.1