{
  "operationId": "hub-fetch-cast-reactions",
  "method": "GET",
  "path": "/v1/reactionsByCast",
  "summary": "On cast",
  "description": "Retrieve all reactions (likes or recasts) on a specific cast in the Farcaster network. The cast is identified by its creator's FID and unique hash. This endpoint helps track engagement metrics and user interactions with specific content.",
  "tags": [
    "Reactions"
  ],
  "parameters": [
    {
      "name": "target_fid",
      "in": "query",
      "required": true,
      "description": "The FID of the cast's creator. Required to uniquely identify the cast that received the reactions. Must be used in conjunction with target_hash.",
      "schema": {
        "$ref": "#/components/schemas/FidSchema"
      }
    },
    {
      "name": "target_hash",
      "in": "query",
      "required": true,
      "description": "The unique hash identifier of the cast that received the reactions. This is a 40-character hexadecimal string prefixed with '0x' that uniquely identifies the cast within the creator's posts. Must be used with target_fid.",
      "schema": {
        "type": "string",
        "pattern": "^0x[0-9a-fA-F]{40}$",
        "example": "0xfec8fd3546e1f46cf5ad10a4ff9f5d53a3bbe9be"
      }
    },
    {
      "name": "reaction_type",
      "in": "query",
      "required": true,
      "description": "",
      "schema": {
        "$ref": "#/components/schemas/ReactionType"
      }
    },
    {
      "name": "",
      "in": "",
      "required": false,
      "description": ""
    },
    {
      "name": "",
      "in": "",
      "required": false,
      "description": ""
    },
    {
      "name": "",
      "in": "",
      "required": false,
      "description": ""
    }
  ],
  "requestBody": null,
  "responses": {
    "200": {
      "description": "The requested Reactions.",
      "schema": {
        "allOf": [
          {
            "type": "object",
            "required": [
              "messages"
            ],
            "properties": {
              "messages": {
                "type": "array",
                "items": {
                  "$ref": "#/components/schemas/Reaction"
                }
              }
            }
          },
          {
            "$ref": "#/components/schemas/PaginationResponse"
          }
        ]
      },
      "example": null
    }
  }
}