Make an offer to the other participant in the conversation

{
  "type": "object",
  "properties": {
    "conversation_id": {
      "type": "string"
    },
    "country_code": {
      "type": "string"
    },
    "layaway_terms_slug": {
      "type": "string"
    },
    "message": {
      "type": "string",
      "description": "Message to include with counter offer"
    },
    "offer_items": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "price",
          "shipping_price",
          "listing_id"
        ],
        "properties": {
          "listing_id": {
            "type": "string"
          },
          "price": {
            "type": "string"
          },
          "shipping_price": {
            "type": "string"
          }
        }
      }
    },
    "price": {
      "type": "object",
      "required": [
        "amount",
        "currency"
      ],
      "properties": {
        "amount": {
          "type": "string",
          "description": "The amount of money being expressed, as a POSIX-compliant decimal number"
        },
        "currency": {
          "type": "string",
          "description": "The currency the money will be expressed in",
          "enum": [
            "USD",
            "CAD",
            "EUR",
            "GBP",
            "AUD",
            "JPY",
            "NZD",
            "MXN"
          ]
        }
      }
    },
    "quantity": {
      "type": "string"
    },
    "recipient_id": {
      "type": "string",
      "description": "ID of the recipient of the offer. Required if you are the seller pushing an offer to a buyer."
    },
    "region_code": {
      "type": "string"
    },
    "shipping_price": {
      "type": "object",
      "description": "Shipping price (sellers only)",
      "required": [
        "amount",
        "currency"
      ],
      "properties": {
        "amount": {
          "type": "string",
          "description": "The amount of money being expressed, as a POSIX-compliant decimal number"
        },
        "currency": {
          "type": "string",
          "description": "The currency the money will be expressed in",
          "enum": [
            "USD",
            "CAD",
            "EUR",
            "GBP",
            "AUD",
            "JPY",
            "NZD",
            "MXN"
          ]
        }
      }
    }
  },
  "required": [
    "conversation_id"
  ],
  "additionalProperties": false
}