Upload an image with payment and get a public URL

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x77f3c9bCb898Ad1d30e9a336E2cC3108d88D6c09",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "9xuipz9Y13v6Z1FnLR3XkrknoBLngwUSstjxcqK6deYX",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  }
]

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "file": "<base64-encoded-image>"
        },
        "bodyType": "json",
        "method": "POST",
        "type": "http"
      },
      "output": {
        "example": {
          "contentType": "image/png",
          "expiresAt": null,
          "id": "abc123",
          "sizeBytes": 12345,
          "url": "https://i.img402.dev/abc123.png"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "body": {
              "properties": {
                "file": {
                  "description": "Base64-encoded image data",
                  "type": "string"
                }
              },
              "required": [
                "file"
              ]
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "properties": {
                "contentType": {
                  "description": "Detected MIME type",
                  "type": "string"
                },
                "expiresAt": {
                  "description": "ISO 8601 expiration timestamp, or null for permanent images",
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "id": {
                  "description": "Unique image ID",
                  "type": "string"
                },
                "sizeBytes": {
                  "description": "File size in bytes",
                  "type": "number"
                },
                "url": {
                  "description": "Public CDN URL of the hosted image",
                  "type": "string"
                }
              },
              "required": [
                "url",
                "id",
                "contentType",
                "sizeBytes",
                "expiresAt"
              ],
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

curl "https://img402.dev/api/upload"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://img402.dev/api/upload");
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://img402.dev/api/upload")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header