Add support array index

[heckad]

Propose to add support array as arg. For example

print(furl('http://example.org', args={'f': [1, 2, 3]}))

should return

http://example.org?f[0]=1&f[1]=2&f[2]=3

[gruns]

Is f[0]=1&f[1]=2&f[2]=3 a commonly used query notation to represent a dictionary of values, eg {'f': [1, 2, 3]}? I, personally, have never seen that URL query style used before.

Do you have any examples of that format, var[key]=value&var[key]=value&... in the wild?

Thank you!

[heckad]

https://www.cian.ru/cat.php?deal_type=sale&engine_version=2&offer_type=flat&region=1&room0=1&rooms_count[0]=1&rooms_count[1]=2&rooms_count[2]=3

[gruns]

interesting! thank you for the link!

have you seen this query pattern on other sites beyond cian.ru, too?

the first result of furl('http://example.org', args={'f': [1, 2, 3]})
that comes to my mind isn't dictionary-like keys, but duplicate,
repeated keys. this:

http://example.org?f=1&f=2&f=3

I've seen the above duplicate, repeated keys pattern in the wild
multiple times before. it's less surprising to me than
?f[0]=1&f[1]=2&f[2]=3 is

the args= value that produces ?f[0]=1&f[1]=2&f[2]=3 that comes to my
mind first is args={'f': {0: 1, 1: 2, 2: 3]}

what do you think about args={'f': {0: 1, 1: 2, 2: 3]} turning into
?f[0]=1&f[1]=2&f[2]=3. would this suffice for your use case?

[heckad]

Maybe add option for serialize array? You can do it by 3 possible methods

1. http://example.org?f=1,2,3
2. http://example.org?f=1&f=2&f=3
3. http://example.org?f[0]=1&f[1]=2&f[2]=3

This can be achieved by adding list wrappers. For example: A, B, C (where A,B,C some talking names) and use it as furl('http://example.org', args={'f': A([1, 2, 3])}) or add default value to furl kwarg.

P. S. I'm not good enough at English. If you correct me in the syntax I would be grateful.

Thank you

[heckad]

@gruns, what you say?