Decode QR/barcodes from a base64-encoded image; returns each detected code's type, decoded

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xFFc458dB291b4ABcE020fE3de4f91F2770E537b1",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "image_base64": "iVBORw0KGgoAAAANSUhEUgAAASIAAAEiCAYAAABdvt+2AAAABmJLR0QA/wD/AP+gvaeTAAAF..."
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "count": 1,
          "image_size": {
            "height": 330,
            "width": 330
          },
          "results": [
            {
              "data": "https://payapi.market",
              "polygon": [
                {
                  "x": 40,
                  "y": 40
                },
                {
                  "x": 40,
                  "y": 290
                },
                {
                  "x": 290,
                  "y": 290
                },
                {
                  "x": 290,
                  "y": 40
                }
              ],
              "rect": {
                "height": 250,
                "left": 40,
                "top": 40,
                "width": 250
              },
              "type": "QRCODE"
            }
          ]
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "properties": {
                "image_base64": {
                  "description": "Base64-encoded image (PNG/JPEG/GIF) containing one or more QR codes. A data: URI prefix is allowed.",
                  "type": "string"
                }
              },
              "required": [
                "image_base64"
              ],
              "type": "object"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "properties": {
                "count": {
                  "description": "Number of QR/barcodes detected in the image.",
                  "type": "integer"
                },
                "image_size": {
                  "description": "Decoded image dimensions in pixels.",
                  "type": "object"
                },
                "results": {
                  "description": "One record per detected code: type, decoded data, bounding rect, and polygon points.",
                  "type": "array"
                }
              },
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://qr-api-production-1836.up.railway.app/decode"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://qr-api-production-1836.up.railway.app/decode");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

import httpx
res = httpx.get("https://qr-api-production-1836.up.railway.app/decode")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header