newer version of lambda.invoke from aws-sdk (javascript)

Question

I wish to execute code that runs like the lambda.invoke function from https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/Lambda.html. e.g.

import AWS from 'aws-sdk'
var lambda = new AWS.Lambda()
var params = {
FunctionName: func,
InvocationType: "Event",
Payload: obj
}
await lambda.invoke(params).promise()

However, this is from an older version (v2) and I wish to achieve the same result using the javascript aws-sdk v3. I am looking at the documentation at https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-lambda/index.html, but I can't find out which function will let me achieve the same result. Would anyone know how to achieve the same invocation of the lambda in a 'fire and forget' manner?

Jens · Accepted Answer · 2021-07-23 11:18:51Z

4

The following snippet is taken from the official documentation and extended with a example for the required input. Please be sure to study the documentation for further information.

import { LambdaClient, InvokeCommand } from "@aws-sdk/client-lambda"; // ES Modules import

const client = new LambdaClient();

// see: https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-lambda/interfaces/invokecommandinput.html
const input = {
  FunctionName: "",
  InvocationType: "",
  LogType: "",
  Payload: "",
  Qualifier: ""
}

const command = new InvokeCommand(input);
const response = await client.send(command);

Documentation: https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/clients/client-lambda/classes/invokecommand.html

edited Jul 23, 2021 at 11:18

answered Jul 23, 2021 at 7:25

Jens

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