{
  "get": {
    "tags": ["Transactions"],
    "summary": "Get all transactions with optional filtering",
    "description": "Retrieve transactions with various filter options including account ID, type, channel, etc.",
    "operationId": "getTransactions",
    "parameters": [
      {
        "name": "account_id",
        "in": "query",
        "description": "Filter by account ID",
        "required": false,
        "schema": {
          "type": "string"
        },
        "example": "ACC456"
      },
      {
        "name": "transaction_id",
        "in": "query",
        "description": "Filter by transaction ID",
        "required": false,
        "schema": {
          "type": "string"
        },
        "example": "TRX789"
      },
      {
        "name": "type",
        "in": "query",
        "description": "Filter by transaction type",
        "required": false,
        "schema": {
          "type": "string"
        },
        "example": "PAYMENT"
      },
      {
        "name": "channel",
        "in": "query",
        "description": "Filter by channel",
        "required": false,
        "schema": {
          "type": "string"
        },
        "example": "MOBILE"
      },
      {
        "name": "start_date",
        "in": "query",
        "description": "Filter by start date (ISO format)",
        "required": false,
        "schema": {
          "type": "string",
          "format": "date-time"
        },
        "example": "2023-01-01T00:00:00Z"
      },
      {
        "name": "end_date",
        "in": "query",
        "description": "Filter by end date (ISO format)",
        "required": false,
        "schema": {
          "type": "string",
          "format": "date-time"
        },
        "example": "2023-12-31T23:59:59Z"
      },
      {
        "name": "page",
        "in": "query",
        "description": "Page number for pagination",
        "required": false,
        "schema": {
          "type": "integer",
          "default": 1,
          "minimum": 1
        },
        "example": 1
      },
      {
        "name": "limit",
        "in": "query",
        "description": "Number of items per page (max 100)",
        "required": false,
        "schema": {
          "type": "integer",
          "default": 20,
          "minimum": 1,
          "maximum": 100
        },
        "example": 20
      }
    ],
    "responses": {
      "200": {
        "description": "Successful operation",
        "content": {
          "application/json": {
            "schema": {
              "$ref": "../schemas/TransactionsResponse.json"
            }
          }
        }
      },
      "400": {
        "description": "Invalid request"
      },
      "500": {
        "description": "Internal server error"
      }
    }
  }
}