Implement caches maps about offline-plugin

[NekR]

@nodkz so essentially it's just runtime-rewriter-function, right? Yeah, good idea 👍

[NekR]

Is everyone here okay with this design for cache maps:

#117

Here was a code example, but I actually placed it to separate issue for clarity

/cc @MoOx @developit @KyleAMathews

[nodkz]

Nice feature!
But also will be great to have rewriteThunk in sw.js with your default fetch event in https://github.com/NekR/offline-plugin/blob/master/src/misc/sw-template.js#L241

This is right my case where I want replace custom routes to spa-shell-entry-html:

/job
/job/*
/company/*
...
// BUT NOT
/job/grapth

This can be done only via JS script, not mapper.

[nodkz]

Exactly.

Cause routing operation often is too complex. And maps does not give enough flexibility and fine tuning.

Other use cases using url rewriter:

• due anon user or authorized
• due localization setting
• due time and date
• due expirity period
• may be tons other thing

[NekR]

I see your point, it's good idea and I think I may do it even before mapping as originally described here.
But I am not 100% sure about it yet. The idea of plugin was to have completely decorative output, but runtime rewrites requires JavaScript, which ins't declarative of course.

With declarative output, we can for example emit JSON file and later feed it to native app/code to handle app's caching.

I'll think about it.

[oscar-b]

@NekR Any new developments regarding this?

[NekR]

The only status about this us that I remember about it. Once there will be updates, they will be written here.

Anyway, thanks for letting me know about your interest. This will help me prioritize.

[NekR]

I moved the code example to separate issue for clarity.

[NekR]

Done in v4 now :-)

[NekR]

Didn't add to readme yet though, going to do that..

[NekR]

Wrote some docs: https://github.com/NekR/offline-plugin/blob/master/docs/cache-maps.md