{
  "post": {
    "tags": ["SendSMS"],
    "summary": "Send SMS Notification",
    "description": "Send a message to one or more EcoBank customers",
    "operationId": "sendSms",
    "requestBody": {
      "required": true,
      "content": {
        "application/json": {
          "schema": {
            "$ref": "../../schemas/eco/SendSMSRequest.json"
          }
        }
      }
    },
    "responses": {
      "200": {
        "description": "SMS Sent Successfully",
        "content": {
          "application/json": {
            "schema": {
              "$ref": "../../schemas/eco/SendSMSResponse.json"
            }
          }
        }
      },
      "400": { "description": "Invalid request" },
      "422": { "description": "Validation exception" },
      "500": { "description": "Internal server error" }
    }
  }
}