How to match incoming records on recid in 035

match_on_recid.py

def attempt_record_match(recid):
    """ Tries to find out if the record is already in Inspire """
    return perform_request_search(p="035:CDS and 035:%s" % (recid,), of="id")


for record in records:
    # Step 1: Attempt to match the record to those already in Inspire
    try:
        recid = record['001'][0][3]
        res = attempt_record_match(recid)
    except (KeyError, IndexError) as err:
        print('Error: Cannot process record without 001:recid')
        error_records.append(record)
        continue

    if skip_recid_check or not res:
        print("Record %s does not exist: inserting" % (recid,))

        # Step 2: Appply filter to transform CDS MARC to Inspire MARC
        insert_records.append(apply_filter(record))
    else:
        print("Record %s found: %r" % (recid, res))