Selector Verification API

The Selector Verification API on LEAP provides a way to use custom verification functions from each site for sql-options.

The REDCap External Module enables data retrieval using SQL queries. To enable that, site administrators can write custom SQL Generator functions and accompanying validation functions, based on SQL Generators

To verify a selector, you can simply write a new python script in the API, that uses the same distributed architecture as the rest of LEAP. An example of selector verification is:

import sys
sys.path.append("../")
import api.leap as leap
import api.register.user.registration as user_reg

def distributedVerify(sites, auth_token):
    selector = {
        "type": "sql", 
        "sql_func": "count", 
        "sql_options": {
            "project_id": "13", 
            "filter" : {'pain_past3backpain': "= 1", 'yrbirth': "< 1931"}
            }
        }
    dist_leap = leap.DistributedSelectorVerification(selector, "127.0.0.1:50000", auth_token)
    result = dist_leap.get_result(sites)
    print(result)


if __name__ == "__main__":
    #user_reg.register_user("TestUser2", "1234561", "127.0.0.1:50000")
    auth_res = user_reg.authenticate_user("TestUser", "123456", "127.0.0.1:50000")
    distributedVerify([1], auth_res.token)

See the example in action by running this file: selector_verification_example.py