Data Model

HL Request Handler

Handler<HLEvent, HLContext> => HLResponse

Basic handler

(defn BasicHandler
  [{:keys [event ctx]}]
  {:statusCode 200
   :headers {"content-type" "application/json"}
   :body {:hello "world"})

(h/entrypoint [#'BasicHandler] opts)

HLContext

Map of

Keyword	Value Type	Description
`:getRemainingTimeInMs`	`(fn [] remaining-time)`	Gets remaining time of Lambda execution
`:fnName`	`string`	Name of the function
`:fnVersion`	`string`	Function version
`:fnInvokedArn`	`string`	ARN of the function
`:memoryLimitInMb`	`string`	Limit of the function memory
`:awsRequestId`	`string`	Id of the request (useful as a correlation id
`:logGroupName`	`string`	Log group name
`:logStreamName`	`string`	Log stream name
`:identity`	`Option<CognitoIdentity>`	Information about the Amazon Cognito identity that authorized the request
`:clientContext`	`ClientContext`	(mobile apps) Client context that's provided to Lambda by the client application

Map of

Keyword	Value Type	Description
`:cognitoIdentityId`	`string`	The authenticated Amazon Cognito identity
`:cognitoIdentityPoolId`	`string`	The Amazon Cognito identity pool that authorized the invocation

Map of

Keyword	Value Type	Description
`:installation_id`	`string`	Application installation ID
`:app_title`	`string`	App title
`:app_version_name`	`string`	App version name
`:app_version_code`	`string`	App version code
`:app_package_name`	`string`	App package name
`:env.platform`	`string`	Platfom
`:env.platform_version`	`string`	Platform version
`:env.make`	`string`	?
`:env.model`	`string`	?
`:env.locale`	`string`	?
`:Custom`	`string`	Custom properties that can be set by the application

Depends on the event provider. Every service integrated with AWS Lambda may produce different shape of the event.

Map

Map of

Keyword	Value Type
`:statusCode`	`int`
`:headers`	`ClojureMap<string,string>`
`:multiValueHeaders`	`ClojureMap<string,vector<string>`
`:body`	`string\|nil\|boolean\|vector<any>\|list<any>`
`:isBase64Encoded`	`boolean`

OR

ByteArray OR

Stringified Map (2) converted to ByteArray.
Future<Map|String|ByteArray|nil> OR

Composite type of Future + primitive.
ClojurePromise<Map|String|ByteArray|nil> OR

Composite type of ClojurePromise + primitive.
Channel<Map|String|ByteArray|nil (only with async-retriever)

Composite type of Channel + primitive.