Node.js

Create S3 Pre-Signed URL for Upload

See more Amazon S3 Examples

Demonstrates how to generate a pre-signed URL for S3 uploads. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    var http = new chilkat.Http();

    http.AwsAccessKey = "AWS_ACCESS_KEY";
    http.AwsSecretKey = "AWS_SECRET_KEY";

    // Make sure to set your AWS region correctly
    http.AwsRegion = "us-east-1";

    var bucketName = "chilkat200";
    var objectName = "starfish/starfish.jpg";
    var awsService = "s3";
    var httpVerb = "PUT";

    // The signed URL will be valid for this number of seconds:
    var numSecondsValid = 86400;

    // Choose between a URL beginning with "http://" or "https://"...
    var bUseHttps = true;

    // Generate the pre-signed URL
    var preSignedUrl = http.S3_GenPresignedUrl(httpVerb,bUseHttps,bucketName,objectName,numSecondsValid,awsService);
    if (http.LastMethodSuccess == false) {
        console.log(http.LastErrorText);
        return;
    }

    console.log("Presigned URL for Upload: " + preSignedUrl);

    // Here's an example of a pre-signed URL
    // 
    // http://chilkat200.s3.amazonaws.com/starfish/starfish.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIBJLOVZVXAU2AFUA%2F20200623%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20200623T234049Z&X-Amz-Expires=86400&X-Amz-SignedHeaders=host&X-Amz-Signature=xxxxxeaea071178d772856c0a4e4c0114a8d9992f0d0812955e490d0exxxxxxx
    // 

    // You can use the pre-signed URL to upload from Chilkat
    // For example, upload by streaming from a local file
    var resp = new chilkat.HttpResponse();
    success = http.HttpFile("PUT",preSignedUrl,"qa_data/jpg/starfish.jpg","image/jpg",resp);
    if (success == false) {
        console.log(http.LastErrorText);
        return;
    }

    console.log("response status code = " + resp.StatusCode);
    console.log("response body size: " + resp.ContentLength);
    if (resp.ContentLength > 0) {
        console.log("response body:");
        console.log(resp.BodyStr);
    }


}

chilkatExample();