Fetch Child table by server side

How to get data of child table using server side code. Like frappe.get_doc() ??

children = frappe.get_list(“child doctype name”,[‘name’],filters={ “parent”:“parent_name”, “parentfield” : “fileld_name”})
for child in children:
child_doc=frappe.get_doc(“child doctype name”,child.name)

getting error

    res = self.session.get(self.url + "/api/resource/" + doctype + "/" + name,
TypeError: cannot concatenate 'str' and 'list' objects

and yeah was giving error on parentfield=fieldname so i changed = to :

Also you missed the parenthesis bracket opening

@nikzz By mistake and write it quickly

frappeclient doesn’t have a get_list method, and is not maintained.
Use the Zerodha client instead