CSVファイルを API経由でJSONに変換

# Convert CSV file to JSON array
curl -X POST \
  https://api.convertfilefast.com/v2/convert/csv-to-json \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@data.csv" \
  -o output.json

# HTTP 200 OK — Content-Type: application/json

import requests

response = requests.post(
    "https://api.convertfilefast.com/v2/convert/csv-to-json",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    files={"file": open("data.csv", "rb")}
)

data = response.json()
print(f"Converted {len(data)} rows to JSON")

import json
with open("output.json", "w") as f:
    json.dump(data, f, indent=2)

const formData = new FormData();
formData.append("file", fs.createReadStream("data.csv"));

const response = await fetch(
  "https://api.convertfilefast.com/v2/convert/csv-to-json",
  {
    method: "POST",
    headers: { "Authorization": "Bearer YOUR_API_KEY" },
    body: formData,
  }
);

const data = await response.json();
console.log(`Converted ${data.length} rows to JSON`);
fs.writeFileSync("output.json", JSON.stringify(data, null, 2));

// n8n HTTP Request Node
{
  "method": "POST",
  "url": "https://api.convertfilefast.com/v2/convert/csv-to-json",
  "contentType": "multipart-form-data",
  "bodyParameters": {
    "parameters": [
      { "name": "file", "parameterType": "formBinaryData", "inputDataFieldName": "data" }
    ]
  },
  "options": { "response": { "responseFormat": "json" } }
}