(Visual Basic 6.0) Call an AWS Lambda Function

Demonstrates how to call an AWS Lambda function.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim success As Long
success = 0

' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

Dim rest As New ChilkatRest

' Connect to the Amazon AWS REST server.
' such as https://email.us-west-2.amazonaws.com/
Dim bTls As Long
bTls = 1
Dim port As Long
port = 443
Dim bAutoReconnect As Long
bAutoReconnect = 1

' -------------------------------------------------------------------------------------------
' Note: The source of the lambda function (hosted on AWS) is shown at the bottom of this page.
' --------------------------------------------------------------------------------------------

' If your lambda function URL is: https://itwxyj3vd6gjtaerbfqnfccs2e0fplzh.lambda-url.us-west-2.on.aws/
' then use just the domain part here:
success = rest.Connect("itwxyj3vd6gjtaerbfqnfccs2e0fplzh.lambda-url.us-west-2.on.aws",port,bTls,bAutoReconnect)

' Provide AWS credentials for the REST call.
Dim authAws As New ChilkatAuthAws
authAws.AccessKey = "AWS_ACCESS_KEY"
authAws.SecretKey = "AWS_SECRET_KEY"
' the region should match our domain above..
authAws.Region = "us-west-2"
authAws.ServiceName = "lambda"

success = rest.SetAuthAws(authAws)

Dim json As New ChilkatJsonObject
success = json.UpdateString("name","Benny")

success = rest.AddHeader("Content-Type","application/json")

Dim sbRequestBody As New ChilkatStringBuilder
success = json.EmitSb(sbRequestBody)

Dim sbResponseBody As New ChilkatStringBuilder
success = rest.FullRequestSb("POST","/",sbRequestBody,sbResponseBody)
If (success = 0) Then
    Debug.Print rest.LastErrorText
    Exit Sub
End If

Dim statusCode As Long
statusCode = rest.ResponseStatusCode
If (statusCode >= 400) Then
    Debug.Print "Response Status Code: " & statusCode
    Debug.Print "Response Body: " & sbResponseBody.GetAsString()
    Debug.Print "Failed."
    Exit Sub
End If

Debug.Print "Response Body:"
Debug.Print sbResponseBody.GetAsString()

export const handler = async (event) => {

    let body = "Hello World";

    if (event.body) {
        const input = JSON.parse(event.body);
        if (input.name) {
            body = "Hello " + input.name;
        }
    }

    return {
        statusCode: 200,
        headers: {
            "Content-Type": "application/json"
        },
        body: JSON.stringify({
            message: body
        })
    };
};