sem-spider/config.json

{
    "db_url": "mongodb://localhost:27017/",
    "db_name": "paper_spider",
    "db_collection": "papers",
    "s2_api_key": "b4YUQrO6w07Zyx9LN8V3p5Lg0WrrGDK520fWJfYd",
    "num_threads": 10,
    "task_queue_len": 10
}