Direct Child Object filter - Rest API

Content

Hi,

We have created one custom object under Contract object. We want to fetch all the child records based on Child object value using Rest API. Currently we have to loop all Contract records (Parent) and filter the child records. Is there a way to filter child object directly?

Ex: I have to fetch all the child records created by Mohan user

https://domain/fscmRestApi/resources/latest/contracts?limit=100&expand=AssetDetailsCollection_c&q=AssetCollection_c:CreatedBy='Mohan';

Thanks,

Mohan