JPG画像を API経由でPNGに変換

# Convert JPG image to PNG
curl -X POST \
  https://api.convertfilefast.com/v2/convert/jpg-to-png \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -F "file=@photo.jpg" \
  --output photo.png

# HTTP 200 OK — Content-Type: image/png

import requests

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

with open("photo.png", "wb") as f:
    f.write(response.content)

const formData = new FormData();
formData.append("file", fs.createReadStream("photo.jpg"));

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

fs.writeFileSync("photo.png", Buffer.from(await response.arrayBuffer()));

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