Make axios instantiable

[nickuraltsev]

Fixes #122, #108

[angelxmoreno]

👍

[mzabriskie]

Sorry for the delayed response. I totally thought I had already replied.

I really like this PR! This has been something that I've been meaning to do for a while.

I would suggest a couple minor changes.

• I would prefer axios.create over axios.createNew for the factory method.
• What is the purpose for axios.request? Looks like it takes the place of calling axios directly. I would prefer not to loose this functionality since axios "competes" with fetch, and I would like to preserve a similar, succinct API.

[nickuraltsev]

@mzabriskie - thank you for looking at this!

I will rename axios.createNew to axios.create.

As for request, it doesn't replace the existing API. All the existing static methods including axios(), axios.get(), axios.post() are retained. The difference between request() and axios() is that the former is an instance method. It provides the same functionality, but is called on an instance and uses the default configuration of that instance. This method can be useful in case when you would like to use the new instance API rather than the static one, but the shortcut methods like get and post don't work for you for some reason (e.g., you need to use a non-standard HTTP method). I'm ok with removing it though. What do you think?

[mzabriskie]

Thanks for this PR!

[nickuraltsev]

You are welcome!

[aripalo]

Any change you could publish new version of Axios into npmjs.org with this instantiation feature? I am actually in dire need of this :) (Okay, I'll survive, I can use axios as git depedency for now)