I m pretty confused here When I run `npx sst start` and test Serverless Stack #help

I'm pretty confused here. When I run `npx sst star...

Louis Barclay

07/14/2021, 10:59 PM

I'm pretty confused here. When I run

npx sst start

and test a POST request with Postman, it works. When I stop running that, and test the POST request to the same URL, with the sst app deployed via

npx sst start

, I immediately get

500 Internal Server Error

, and no log appearing for the Lambda function in CloudWatch. I am certain that I'm sending the request to the correct URL. Any ideas of what I could be doing wrong? tl;dr: I'm getting

500 Internal Server Error

on all my functions and not sure why, and struggling to debug.

Louis Barclay

07/14/2021, 11:00 PM

Some more context: • The deployed app has worked before with no problems • I've checked to make sure it's deployed in Lambda -> Applications, and it is

Louis Barclay

07/14/2021, 11:01 PM

Think I will try deploy it as a new stack and see what happens

Frank

07/14/2021, 11:01 PM

Hi @Louis Barclay , after u stop sst start, you’d need to run sst deploy to deploy the real app.

Louis Barclay

07/14/2021, 11:02 PM

Yup, I did that

Louis Barclay

07/14/2021, 11:02 PM

The app has historically been deployed

Louis Barclay

07/14/2021, 11:02 PM

It currently is deployed but still giving the 500. Can't figure out why

Frank

07/14/2021, 11:04 PM

Hmm… just a sanity check.. can you try running sst deploy again?

Louis Barclay

07/14/2021, 11:04 PM

I'm currently running it, having changed the stack name so it'll generate a new app and endpoint (I think)

Louis Barclay

07/14/2021, 11:04 PM

I will see if that fixes it

Louis Barclay

07/14/2021, 11:05 PM

Yup, seems to work now

Louis Barclay

07/14/2021, 11:05 PM

Really weird

Frank

07/14/2021, 11:06 PM

Just to clarify, after you stop sst start, the API won’t work until you run sst deploy again.

Louis Barclay

07/14/2021, 11:06 PM

Ah OK. Every single time?

Louis Barclay

07/14/2021, 11:07 PM

So basically if I have my live app that's in production using the same endpoint, I am in trouble if I ever test the API locally and then forget to run npx sst deploy?

Louis Barclay

07/14/2021, 11:07 PM

I think I misunderstand the best practice here

Louis Barclay

07/14/2021, 11:08 PM

Presumably I should then have a separate endpoint that is my production API

Frank

07/14/2021, 11:08 PM

Yeah, you shouldn’t run sst start in production stages.

Louis Barclay

07/14/2021, 11:09 PM

Aha OK. So what's best practice once I've 1) deployed for the first time? 2) Need to make a change?

Frank

07/14/2021, 11:10 PM

You should always work in a development stage (ie. dev stage). And when you want to deploy to production you run “sst deploy -- stage prod”

Louis Barclay

07/14/2021, 11:10 PM

OK cool!

Louis Barclay

07/14/2021, 11:11 PM

Thanks a lot for the help Frank! Insanely appreciated as always

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