You can try this Server Script:
docType = frappe.form_dict.docType
if not docType:
frappe.throw("Parameter docType missing")
frappe.response['data'] = frappe.db.get_list(docType, fields=["*"])
Usage: http://localhost:8000/api/method/get_list?docType=Employee%20Skill
Set it up like this and make sure that Server is enabled (see Server Script):
