java - REST API filtering with related resources best practices -

what best practice include related resources in search query?

my resources are:

/projects /participants /questions /questionanswers

the query like: participants are:

- between age of 20 , 40 and, - male and, - selected answer x of question y

would

/participants?search=gender:male,age>=20,age<=40,question:x,answer:y

is there better or standard way type of queries?

you can use object serialization & filters. like:

/participants?filter={gender={male}, age={between={20, 40}}, question={x}, answer={y}}

for given example with:

in case, have possibility filter more specific and/or combined. combination example:

/participants?filter={gender={male, female}, age={21,22, 23, from={40}}, question={x}, answer={y}}

result: gender male , female age 21, 22, 23 , 40 till 99 (or want)

ANy