import json
import logging
import logging.config
import time

with open('config.json') as f:
    d = json.load(f)
    
logging.config.dictConfig(d)

logger = logging.getLogger(__name__)

logger.setLevel(logging.INFO)


def main():
    for i in range(1, 101):
        logger.info('Message no. %d', i)
        time.sleep(30)

if __name__ == '__main__':
    main()