How to Import CSV Files into PostgreSQL Automatically
If you work with databases, manually uploading CSV data into PostgreSQL is a bottleneck. It’s slow, prone to human error, and creates a lag between data generation and availability. In this guide, I will show you how to build a Real-Time Data Pipeline . Using Python's watchdog library, we will create a script that "listens" to a specific folder. The moment a new CSV is dropped in, the script wakes up, parses the file, and pushes the data to PostgreSQL instantly. The Architecture Before writing code, it is helpful to understand the flow. We are moving from a manual "Pull" method to an automated "Event-Driven" method. The Trigger: The OS File System events (monitored by watchdog ). The Processor: A Python script using pandas or csv modules. The Destination: A PostgreSQL table using psycopg2 . Step 1: Prerequisites You will need a few libraries to handle the file monitoring and database connection....
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