Java: S3 - Missing Method to receive Object Url

[Andre0711er]

Hi.

In Java S3 Client SDK Version 1.X exists a method named "getUrl" which return all informations for object url. Now i see, method doesn't exists in new SDK.

How i can solve, getting url from Object?

SDK Documentation from Java 1.X SDK:

https://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/services/s3/AmazonS3.html#getUrl-java.lang.String-java.lang.String-

greets,

Andre.

[soo-aws]

Hi Andre,
This
https://github.com/aws/aws-sdk-java-v2/blob/7c3a05eed0a2048949561e5d44d28667800bcc84/docs/LaunchChangelog.md#411-s3-operation-migration
Covers the migration path for each of the s3 client methods. It looks like getUrl is no longer supported. Do you have a specific use case that requires the url only instead of using the getObject method to download the object?

thank you
Soo

[Andre0711er]

Hi.

Thanks for your mail.
So "getObject" is not real the target.

We need to PUT Objects to S3 Storage. After that, we store URL from S3 Object into Database as relation. For that, we use the Function "getUrl" from SDK 1.X, which works great. Now, there is no real Way (which i know yet) to determine Real 100% URL from SDK.

I wrote my own simple Helper Method now for that, who check the Object via HTTP HEAD Connection, but i personally think, it's the best to use underlying Framework (S3 SDK) for this.

Thanks,

Andre.

[Bam4d]

@AndreMarthaler can you share your code that you used to get the URL.

I'm also looking for this feature, sad it went in v2

[Andre0711er]

Hi Chris.

I found no way to get URL from SDK. So i create it by hand.
But again, it's so sad, that there's no way via SDK. Otherwise, it's a shame, that AWS never really react on my Issue here. For me personally, it's a "forgotten" Feature. On SDK V1.X it works! WHY they take out this nice and working Feature?!

So my used method for that:

public static String getUrl(String bucketName, String path) {
    GetObjectRequest.Builder getRequestBuilder = GetObjectRequest.builder();
    getRequestBuilder.bucket(bucketName);
    getRequestBuilder.key(path);

    return getUrl(getRequestBuilder.build()).toExternalForm();
  }
public static URL getUrl(GetObjectRequest request) {
    StringBuilder urlBuilder = new StringBuilder();
    urlBuilder.append(S3_PROTOCOL);
    urlBuilder.append("://");
    urlBuilder.append(S3_HOST);
    urlBuilder.append("/");
    urlBuilder.append(request.bucket());
    urlBuilder.append("/");
    urlBuilder.append(request.key());
    URL url;
    try {
      url = new URL(urlBuilder.toString());
      return url;
    } catch (MalformedURLException e) {
      logger.error(e.toString());
    }
    return null;
  }

• bucketName is "my bucket name"
• path is "my uploaded path"
• S3_PROTOCOL is "https"
• S3_HOST is "s3.amazonaws.com"

Might be, there is a better way, but for me, it works.

Greets,

Andre.

[jschwarzwalder]

Thank you for your request. I know the team for the AWS Java SDK are working to add more features to the Java v2.

You can formally request the feature by adding an issue on the official aws-sdk-java-v2 repository

For more information about using the S3Utilities class in v2 to get a Url, checkout issue #860.

I"m going to close this issue for now, but if you want to add a code example feel free to create a pull request.