How to load data from ClickHouse to Convex
Learn how to use Airbyte to synchronize your ClickHouse data into Convex within minutes.


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How to Sync to Manually
Step 1: Set Up Environment
Begin by setting up your environment with access to both ClickHouse and Convex. Ensure you have administrative access to both systems, as you'll need to execute queries on ClickHouse and insert data into Convex.
Step 2: Export Data from ClickHouse
Use the ClickHouse command-line interface or a similar tool to export your data. You can execute a SQL query to select the data you need and export it to a CSV or JSON file. For example:
```sql
SELECT FROM your_table INTO OUTFILE 'data.csv' FORMAT CSV;
```
This command saves the data as a CSV file, which is easy to process.
Step 3: Prepare Data for Import
Inspect the exported CSV or JSON file to ensure data integrity and compatibility with Convex's data model. Make any necessary transformations or cleanups. You might need to handle data types or format issues to match Convex's schema requirements.
Step 4: Install Convex CLI
Install the Convex CLI tool if it's not already installed. This CLI will be used to manage your Convex database and import data. Follow the official Convex documentation to install and configure the CLI on your system.
Step 5: Create Convex Table
Log in to your Convex account and create a table that matches the structure of your ClickHouse data. Use the Convex CLI or dashboard to define the schema, ensuring all fields are correctly specified. This might involve defining data types, primary keys, and other constraints.
Step 6: Write a Script for Data Transfer
Develop a script, using a language like Python, Node.js, or similar, to read the exported data file and insert records into Convex. Use Convex's REST API or client libraries to programmatically insert each record. Here's an example using Python:
```python
import csv
import requests
url = 'https://your-convex-instance.convex.dev/tables/your_table'
headers = {'Authorization': 'Bearer YOUR_API_KEY'}
with open('data.csv', newline='') as csvfile:
reader = csv.DictReader(csvfile)
for row in reader:
response = requests.post(url, json=row, headers=headers)
if response.status_code != 200:
print(f"Failed to insert row: {row}")
```
Make sure to replace `'YOUR_API_KEY'` and `'your_table'` with actual values.
Step 7: Verify Data Integrity
After the data transfer, verify that all records were successfully moved to Convex. Use the Convex dashboard or execute queries to ensure the data matches what was in ClickHouse. Check for missing or malformed data and address any discrepancies by re-running the script or manually correcting errors.
By following these steps, you will successfully move data from ClickHouse to Convex without relying on third-party connectors or integrations.