{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/amazon-iot-greengrass/refs/heads/main/json-schema/iot-greengrass-lambda-execution-parameters-schema.json",
  "title": "LambdaExecutionParameters",
  "description": "Contains parameters for a Lambda function that runs on IoT Greengrass.",
  "type": "object",
  "properties": {
    "eventSources": {
      "allOf": [
        {
          "$ref": "#/components/schemas/LambdaEventSourceList"
        },
        {
          "description": "The list of event sources to which to subscribe to receive work messages. The Lambda function runs when it receives a message from an event source. You can subscribe this function to local publish/subscribe messages and Amazon Web Services IoT Core MQTT messages."
        }
      ]
    },
    "maxQueueSize": {
      "allOf": [
        {
          "$ref": "#/components/schemas/OptionalInteger"
        },
        {
          "description": "The maximum size of the message queue for the Lambda function component. The IoT Greengrass core stores messages in a FIFO (first-in-first-out) queue until it can run the Lambda function to consume each message."
        }
      ]
    },
    "maxInstancesCount": {
      "allOf": [
        {
          "$ref": "#/components/schemas/OptionalInteger"
        },
        {
          "description": "The maximum number of instances that a non-pinned Lambda function can run at the same time."
        }
      ]
    },
    "maxIdleTimeInSeconds": {
      "allOf": [
        {
          "$ref": "#/components/schemas/OptionalInteger"
        },
        {
          "description": "The maximum amount of time in seconds that a non-pinned Lambda function can idle before the IoT Greengrass Core software stops its process."
        }
      ]
    },
    "timeoutInSeconds": {
      "allOf": [
        {
          "$ref": "#/components/schemas/OptionalInteger"
        },
        {
          "description": "The maximum amount of time in seconds that the Lambda function can process a work item."
        }
      ]
    },
    "statusTimeoutInSeconds": {
      "allOf": [
        {
          "$ref": "#/components/schemas/OptionalInteger"
        },
        {
          "description": "The interval in seconds at which a pinned (also known as long-lived) Lambda function component sends status updates to the Lambda manager component."
        }
      ]
    },
    "pinned": {
      "allOf": [
        {
          "$ref": "#/components/schemas/OptionalBoolean"
        },
        {
          "description": "<p>Whether or not the Lambda function is pinned, or long-lived.</p> <ul> <li> <p>A pinned Lambda function starts when IoT Greengrass starts and keeps running in its own container.</p> </li> <li> <p>A non-pinned Lambda function starts only when it receives a work item and exists after it idles for <code>maxIdleTimeInSeconds</code>. If the function has multiple work items, the IoT Greengrass Core software creates multiple instances of the function.</p> </li> </ul> <p>Default: <code>true</code> </p>"
        }
      ]
    },
    "inputPayloadEncodingType": {
      "allOf": [
        {
          "$ref": "#/components/schemas/LambdaInputPayloadEncodingType"
        },
        {
          "description": "<p>The encoding type that the Lambda function supports.</p> <p>Default: <code>json</code> </p>"
        }
      ]
    },
    "execArgs": {
      "allOf": [
        {
          "$ref": "#/components/schemas/LambdaExecArgsList"
        },
        {
          "description": "The list of arguments to pass to the Lambda function when it runs."
        }
      ]
    },
    "environmentVariables": {
      "allOf": [
        {
          "$ref": "#/components/schemas/LambdaEnvironmentVariables"
        },
        {
          "description": "The map of environment variables that are available to the Lambda function when it runs."
        }
      ]
    },
    "linuxProcessParams": {
      "allOf": [
        {
          "$ref": "#/components/schemas/LambdaLinuxProcessParams"
        },
        {
          "description": "The parameters for the Linux process that contains the Lambda function."
        }
      ]
    }
  }
}