Feature request: Java Templates should allow users to pick between SDK v1 and v2

[rli]

Requested through the internal toolkits issue queue

[moelasmar]

Thanks @rli for requesting this feature. Could you please clarify more what do you mean by SDK v1, and V2. Do you mean AWS SDK?

[Metrowerks]

@moelasmar yes it was about the AWS SDK v2

[mndeveci]

Thanks for the request. I haven't checked in detail but looking at the package groupId it looks like they are different. So I wonder if we can still build the same code with V1 and V2 at the same time?

If not then we can think about completely moving to V2 if that is the intention or have alternatives for each (or at least most of) the templates so that users can choose during sam init.

[rli]

no the imports / namespace are different. i'd confirm with the Java SDK team, but i think they'd leaning towards pushing customers to V2, rather than keeping both templates around

[mndeveci]

Sure, if they are pushing for V2, we can update all java templates with them as well.

[Metrowerks]

hi, we are doing SDK v2 so for us whether completely moving to v2 or maintaining both versions won't matter. I mentioned options to select v2 because I thought some other users may have use case to stay with v1, but I see the point to make it completely v2 to motivate users to move to the latest SDK version.

[mndeveci]

Thanks, but my question was about whether we want customers to still use V1 given that we are working on V2 for a while. So depending on the answers we could;

• A: If using V1 is still accepted and encouraged, keep V1 and add V2 examples as well (which means duplicated templates & more maintenance work for us)
• B: If using V1 still OK but we want people to use V2, we can migrate all templates to V2 but leave hello-world examples with V1 options as well.
• C: If our target is to push everyone to V2 eventually, and we don't our customers to use V1 for the new projects, we can migrate everything to V2 and no V1 template will be left.

Looking at the feedback, going with option B makes more sense, please let me know your preference.

[Metrowerks]

I'd prefer option C. For us, we don't do anything with V1 anymore. I think if you change everything in the toolkit to v2, and then have the v1 templates in a github repo for users to clone if needed, that'd work.

[mndeveci]

Sure, if that is the case, we can go with option C there. Would you like to contribute this repo and raise a pull request for the changes?

[Metrowerks]

I'd love to but we're in a crunch time to deliver P0 for this year and it has been taking a good amount of time for us to figure out how to set up the project with the SDK's.

btw, this is an out-of-topic question but are there any examples for how to implement lambda handlers in SDK 2 using RequestHandler like with SDK 1? It seems that RequestHandler is still only available in SDK 1?