Hi all,
I've been using AWS Lambda for a small project. I've been leveraging the
lein-clj-lambda <https://github.com/mhjort/clj-lambda-utils> plugin to
build and upload the compiled Jar to S3 which is then used to update my
Lambda function. Aside from the Jar generation, a lot of the time is spent
uploading the Jar up to S3. The resulting Jar file is only about 12mb but
does considerably slow down the feedback loop.
I have the following questions:
- Does anyone have any tips for reducing the size of a jar even more?
- I've tried excluding dependencies until the Jar broke, saved a few
KBs
- I briefly looked into ProGuard, but the obfuscating process seemed
to take some time which would negate any time saved on upload.
- Am I doing this wrong? Is there a way to mimic AWS Lambda locally?
- To mitigate this loop, I use the REPL to play with the individual
functions until they feel right, but at some point you gotta test on the
server, being far from perfect, I make a lot of mistakes so that's when
the
iteration happens.
Here's a link to the project.clj
<https://github.com/guacamoledragon/petfinder/blob/master/twilio-webhook/project.clj>
in question for reference.
I will say that using the lein-clj-lambda is already a huge win (before
plugin it was `lein uberjar`, manually upload jar to S3, manually update
AWS Lambda), but I'm wondering if there's an even better way.
-jvt
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