feat(package): /p/demo/mux support query strings

[thinhnx-var]

Contributors' checklist...

• Added new tests, or not needed, or not feasible
• Provided an example (e.g. screenshot) to aid review or the PR is self-explanatory
• Updated the official documentation or not needed
• No breaking changes were made, or a BREAKING CHANGE: xxx message was included in the description
• Added references to related issues and PRs
• Provided any useful hints for running manual tests
• Added new benchmarks to generated graphs, if any. More info here.

This PR aims to support mux package for querying with strings. (relates #2585 )

Usage:

request.Query(): Get  map of keys and list of values from params
request.Query()["key"]: Get list of values corresponding to the key
request.Query().Get("key"): Get the very first value of the key.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 60.43%. Comparing base (dd2d374) to head (48a0eaa).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #2594      +/-   ##
==========================================
- Coverage   60.44%   60.43%   -0.02%     
==========================================
  Files         563      563              
  Lines       75159    75159              
==========================================
- Hits        45431    45421      -10     
- Misses      26341    26348       +7     
- Partials     3387     3390       +3     

Flag	Coverage Δ
contribs/gnodev	60.65% <ø> (-0.82%)	⬇️
contribs/gnofaucet	15.31% <ø> (+0.85%)	⬆️
gno.land	67.21% <ø> (ø)
gnovm	64.46% <ø> (ø)
misc/genstd	80.54% <ø> (ø)
misc/logos	19.88% <ø> (ø)
tm2	62.03% <ø> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[thinhnx-var]

I am thinking about if we want to use avl tree to store the params instead of using map

[ajnavarro]

@moul @zivkovicmilos can you have a look into this? Thanks.

[moul]

i think that you're not supporting having a slash in one of the query parameters:

gno.land/p/demo/foo?a=b&c=d/e

[thinhnx-var]

yeah, I saw your TODO in current request parser. I will try to update for this /a/b/c/d/... case.

[moul]

you're just adding new helpers, but the underlying existing library won't work with the changes, please add more unit tests for the existing helpers with query strings.

like hello/{name} with hello/Alice?a=b -> currently name equals Alice?a=b instead of Alice.

[thinhnx-var]

you're just adding new helpers, but the underlying existing library won't work with the changes, please add more unit tests for the existing helpers with query strings.

like hello/{name} with hello/Alice?a=b -> currently name equals Alice?a=b instead of Alice.

@moul
I have just updated the PR. I am not sure but I think these changes are now working with underlying existing library ( tests are added in Render() test. Can you give a look on this PR when you have a chance?