index.json

{
  "info": {
    "_postman_id": "tu_postman_id_generado",
    "name": "API Collection con Imágenes",
    "schema": "https://schema.getpostman.com/json/collection/v2.1.0/collection.json"
  },
  "item": [
    {
      "name": "Subir Imagen",
      "request": {
        "method": "POST",
        "url": {
          "raw": "https://api.example.com/upload",
          "protocol": "https",
          "host": ["api", "example", "com"],
          "path": ["upload"]
        },
        "header": [
          {
            "key": "Content-Type",
            "value": "multipart/form-data"
          }
        ],
        "body": {
          "mode": "formdata",
          "formdata": [
            {
              "key": "image",
              "type": "file",
              "src": ["https://rickandmortyapi.com/api/character/avatar/361.jpeg"]
            }
          ]
        }
      }
    }
  ]
}