Airtable to CSV

airtable.py

# Download Airtable's API response retrieved from browser console as CSV

import csv
import sys
import json

file_path = sys.argv[1]

with open(file_path) as f_in, open("airtable.csv", "w") as f_out:
    data = json.load(f_in)
    columns_metadata = {
        item["id"]: {
           "name": item["name"],
           "type": item["type"],
           "choices": {
              choice_id: value["name"]  for choice_id, value in ((item.get("typeOptions") or {}).get("choices") or {}).items()
           }
        }
        for item in data["data"]["table"]["columns"]
    }
    headers = [item["name"] for item in columns_metadata.values()]
    rows = data["data"]["table"]["rows"]

    writer = csv.DictWriter(f_out, fieldnames=headers)
    writer.writeheader()

    for row in rows:
        row_raw_data = row["cellValuesByColumnId"]
        row_data = {}
        for idx, value in row_raw_data.items():
            col_type = columns_metadata[idx]["type"]
            col_name = columns_metadata[idx]["name"]
            if col_type == "richText":
              value = "\n".join(
                  [item["insert"] for item in value["documentValue"] if "attributes" not in item]
              )
            elif col_type == "multiSelect":
              choices = columns_metadata[idx]["choices"]
              value = ", ".join(
                [choices[item] for item in value]
              )
            elif col_type == "select":
              choices = columns_metadata[idx]["choices"]
              value = choices[value]
            row_data[col_name] = value

        writer.writerow(row_data)