AliceAndBobSource

// Alice.ts
import aws from 'aws-sdk';

export function main(event: any, context: any, callback: Function) {
    new aws.Lambda().invoke({
        FunctionName: process.env.BobFunction!,
        Payload: JSON.stringify({message: "Hi!. I'm Alice."})
    }, (error: Error, data: any) => {
        const response = JSON.parse(data.Payload);
        console.log('FromBob', error || response)
        callback(error);
    });
}

// Bob.ts
export function main(event: any, context: any, callback: any) {
    console.log('FromAlice', event)
    callback(null, {message: "Hi! I'm Bob. Nice to meet you!"});
}