curl --request POST \
  --url https://api.iotools.cloud/v1/tool/svg-pattern-generator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "patternType": "dots",
  "fgColor": "#333333",
  "bgColor": "#ffffff",
  "strokeWidth": "2",
  "spacing": "20",
  "opacity": "10",
  "rotation": "0"
}
'

{
  "tool": "svg-pattern-generator",
  "tool_version": "1.0.1",
  "outputs": {
    "svg": "<svg xmlns=\"http://www.w3.org/2000/svg\" width=\"800\" height=\"600\"><defs><pattern id=\"svgPattern\" patternUnits=\"userSpaceOnUse\" width=\"20\" height=\"20\"><circle cx=\"10\" cy=\"10\" r=\"1\" fill=\"#333333\" /></pattern></defs><rect width=\"800\" height=\"600\" fill=\"#ffffff\" /><rect width=\"800\" height=\"600\" fill=\"url(#svgPattern)\" opacity=\"1\" /></svg>"
  },
  "credits_used": 3,
  "credits_remaining": null
}