Possible to only invoke Netlify functions for server-side rendered pages when using @netlify/plugin-gatsby?

[chrisq21]

Hi! I posted this question in the Netlify support forums but realized it might be better suited to live here.

Context

We’ve been using the @netlify/plugin-gatsby package to enable server side rendering on https://curology-gatsby.netlify.app/ (custom domain is curology.com).

We’re currently using SSR in production for Treat Acne, Fine Lines and More | Curology Custom Skincare | Start Your Free Trial, while all other pages are static.

I noticed that our Netlify function request usage represents all traffic from our entire app, rather than that of the single page that is server-rendered. This means we run the risk of hitting the request limit for “functions level 1” even though our server-rendered page only has a few hundred requests.

Questions

• Is it possible to only utilize Netlify functions for pages that are server-rendered using Gatsby’s SSR functionality (page components that export getServerData)?
• What will happen when we beyond the request limit in “function level 1”?

Thanks for the support! Our team has been really happy with how well SSR has worked with the @netlify/plugin-gatsby package so far.

[ascorbic]

Hey. Could you post the build logs here? It should only be using functions for SSR and DSG pages.

[ascorbic]

Hi,
Thanks for the info. From the logs, it does look like it's only calling the function for /free-trial/4i0/, and that the page is being loaded several times per minute, which would match with the number of requests per month. Are you sure this page is not actually being loaded this many times?
Could you confirm where and how you are defining the redirects? As expected, loading https://curology-gatsby.netlify.app/?v=anti-aging rewrites to serve the content of /free-trial/4i0, but then Gatsby changes the URL to https://curology-gatsby.netlify.app/free-trial/4i0/?v=anti-aging (possibly for trailing-slash reasons). If you run a build locally, can you share the content of public/_redirects?

[chrisq21]

Ah, interesting. Yeah I'm only seeing ~16k requests per month for the /free-trial/4i0/ page in our Cloudflare analytics. Do the redirects count toward the function usage? Will post the public/_redirects content shortly.

[chrisq21]

# Variant redirects
/ v=male /free-trial/1i1n 200!
/ v=1i1 /free-trial/1i1n 200!
/ v=anti-aging /free-trial/4i0 200!
/ v=4i0 /free-trial/4i0 200!
/ v=general-skincare /free-trial/1i4n 200!
/ v=1i4 /free-trial/1i4n 200!
/ v=neutral /free-trial/1i4n 200!
/ v=1i0 /free-trial/1i0n 200!

/ v=1i1g /free-trial/1i1yt 200!
/ v=anti-aging-g /free-trial/4i0g 200!
/ v=4i0g /free-trial/4i0g 200!
/ v=general-skincare-g /free-trial/1i4g 200!
/ v=neutral-g /free-trial/1i4g 200!
/ v=1i4g /free-trial/1i4g 200!
/ v=1i0g /free-trial/1i0g 200!

/anti-aging /free-trial/4i0 200!
/general-skincare /free-trial/1i4n 200!
/neutral /free-trial/1i4n 200!
/male /free-trial/1i1n 200!

/free-trial v=male /free-trial/1i1n 200!
/free-trial v=1i1 /free-trial/1i1n 200!
/free-trial v=anti-aging /free-trial/4i0  200!
/free-trial v=4i0 /free-trial/4i0 200!
/free-trial v=general-skincare /free-trial/1i4n 200!
/free-trial v=neutral /free-trial/1i4n 200!
/free-trial v=1i4 /free-trial/1i4n 200!

/free-trial/4i0n /free-trial/4i0 200!
/free-trial/1i4 /free-trial/1i4n 200!
/free-trial/1i1g /free-trial/1i1yt 200!

[chrisq21]

I noticed there are also many invocations of the __dsg function in the function logs. It's hard to tell but it seems to be invoked the same # of times as the __ssr function. I was surprised to see that since we're only using Gatsby's SSR functionality and not DSG. Assuming the invocations of DSG are 1-1 with the SSR function, could that be doubling up our request total?

Note: At the time of writing this we've stopped SSR on the free-trial/4i0 page and started it on the homepage (https://curology-gatsby.netlify.app/)

[chrisq21]

Here are the DSG logs. It isn't logging a request in the same way as the SSR logs (ex: Mar 23, 10:44:23 AM: [GET] / (SSR)) so maybe it's not actually being invoked but just logging the "duration" and "memory usage" values for SSR for some reason.