money_crawler.py 文件源码

def ensure_indexes(self):
        #Ensure index existence
        db = self.client.bitcoin
        collection = db.transactions
        collection.create_index([("source_n_id", ASCENDING)])
        collection.create_index([("destination_n_id", ASCENDING)])
        collection.create_index([("source", ASCENDING)])
        collection.create_index([("destination", ASCENDING)])
        collection.create_index([("block_id",DESCENDING)])