path.json

"/v2/locations/{location_id}/transactions/{transaction_id}/refund": {
  "post": {
    "tags": [
      "Transactions"
    ],
    "summary": "CreateRefund",
    "operationId": "CreateRefund",
    "description": "Initiates a refund for a previously charged tender.\n\nYou must issue a refund within 120 days of the associated payment. See\n(this article)[https://squareup.com/help/us/en/article/5060] for more information\non refund behavior.",
    "x-oauthpermissions": [
      "PAYMENTS_WRITE"
    ],
    "security": [
      {
        "oauth2": [
          "PAYMENTS_WRITE"
        ]
      }
    ],
    "parameters": [
      {
        "name": "location_id",
        "description": "The ID of the original transaction\u0027s associated location.",
        "type": "string",
        "in": "path",
        "required": true
      },
      {
        "name": "transaction_id",
        "description": "The ID of the original transaction that includes the tender to refund.",
        "type": "string",
        "in": "path",
        "required": true
      },
      {
        "name": "body",
        "in": "body",
        "required": true,
        "description": "An object containing the fields to POST for the request.\n\nSee the corresponding object definition for field details.",
        "schema": {
          "$ref": "#/definitions/CreateRefundRequest"
        }
      }
    ],
    "responses": {
      "200": {
        "description": "Success",
        "schema": {
          "$ref": "#/definitions/CreateRefundResponse"
        }
      }
    }
  }
},