Show warning during build if page is returning a large amount of data

[sshyam-gupta]

Feature

• Implements an existing feature request or RFC. Make sure the feature request has been accepted for implementation before opening a PR.
• Related issues linked using fixes Show warning during build if page is returning a large amount of data #33829
• Integration tests added
• Documentation added
• Telemetry added. In case of a feature if it's used or not.
• Errors have helpful link attached, see contributing.md

[ijjk]

Stats from current PR

Default Build (Increase detected ⚠️)

General Overall increase ⚠️

	vercel/next.js canary	sshyam-gupta/next.js show-build-warning-for-large-data	Change
buildDuration	15.7s	15.3s	-449ms
buildDurationCached	6.6s	6.1s	-543ms
nodeModulesSize	626 MB	626 MB	⚠️ +687 B

Page Load Tests Overall increase ✓

	vercel/next.js canary	sshyam-gupta/next.js show-build-warning-for-large-data	Change
/ failed reqs	0	0	✓
/ total time (seconds)	3.89	3.806	-0.08
/ avg req/sec	642.73	656.79	+14.06
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.462	1.213	-0.25
/error-in-render avg req/sec	1710.04	2060.76	+350.72

Client Bundles (main, webpack)

	vercel/next.js canary	sshyam-gupta/next.js show-build-warning-for-large-data	Change
925.HASH.js gzip	179 B	179 B	✓
framework-HASH.js gzip	42 kB	42 kB	✓
main-HASH.js gzip	29.2 kB	29.2 kB	✓
webpack-HASH.js gzip	1.54 kB	1.54 kB	✓
Overall change	73 kB	73 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	sshyam-gupta/next.js show-build-warning-for-large-data	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	sshyam-gupta/next.js show-build-warning-for-large-data	Change
_app-HASH.js gzip	1.36 kB	1.36 kB	✓
_error-HASH.js gzip	193 B	193 B	✓
amp-HASH.js gzip	308 B	308 B	✓
css-HASH.js gzip	327 B	327 B	✓
dynamic-HASH.js gzip	2.7 kB	2.7 kB	✓
head-HASH.js gzip	359 B	359 B	✓
hooks-HASH.js gzip	920 B	920 B	✓
image-HASH.js gzip	5.74 kB	5.74 kB	✓
index-HASH.js gzip	263 B	263 B	✓
link-HASH.js gzip	2.65 kB	2.65 kB	✓
routerDirect..HASH.js gzip	320 B	320 B	✓
script-HASH.js gzip	391 B	391 B	✓
withRouter-HASH.js gzip	318 B	318 B	✓
85e02e95b279..7e3.css gzip	107 B	107 B	✓
Overall change	16 kB	16 kB	✓

Client Build Manifests

	vercel/next.js canary	sshyam-gupta/next.js show-build-warning-for-large-data	Change
_buildManifest.js gzip	459 B	459 B	✓
Overall change	459 B	459 B	✓

Rendered Page Sizes

	vercel/next.js canary	sshyam-gupta/next.js show-build-warning-for-large-data	Change
index.html gzip	533 B	533 B	✓
link.html gzip	547 B	547 B	✓
withRouter.html gzip	528 B	528 B	✓
Overall change	1.61 kB	1.61 kB	✓

---

Default Build with SWC (Increase detected ⚠️)

General Overall increase ⚠️

	vercel/next.js canary	sshyam-gupta/next.js show-build-warning-for-large-data	Change
buildDuration	17.3s	18.3s	⚠️ +984ms
buildDurationCached	6.4s	5.9s	-579ms
nodeModulesSize	626 MB	626 MB	⚠️ +687 B

Page Load Tests Overall increase ✓

	vercel/next.js canary	sshyam-gupta/next.js show-build-warning-for-large-data	Change
/ failed reqs	0	0	✓
/ total time (seconds)	5.622	3.585	-2.04
/ avg req/sec	444.7	697.44	+252.74
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.359	1.437	⚠️ +0.08
/error-in-render avg req/sec	1839.68	1739.63	⚠️ -100.05

Client Bundles (main, webpack)

	vercel/next.js canary	sshyam-gupta/next.js show-build-warning-for-large-data	Change
925.HASH.js gzip	178 B	178 B	✓
framework-HASH.js gzip	42.7 kB	42.7 kB	✓
main-HASH.js gzip	29.7 kB	29.7 kB	✓
webpack-HASH.js gzip	1.54 kB	1.54 kB	✓
Overall change	74.1 kB	74.1 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	sshyam-gupta/next.js show-build-warning-for-large-data	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	sshyam-gupta/next.js show-build-warning-for-large-data	Change
_app-HASH.js gzip	1.35 kB	1.35 kB	✓
_error-HASH.js gzip	179 B	179 B	✓
amp-HASH.js gzip	311 B	311 B	✓
css-HASH.js gzip	324 B	324 B	✓
dynamic-HASH.js gzip	2.9 kB	2.9 kB	✓
head-HASH.js gzip	357 B	357 B	✓
hooks-HASH.js gzip	920 B	920 B	✓
image-HASH.js gzip	5.84 kB	5.84 kB	✓
index-HASH.js gzip	261 B	261 B	✓
link-HASH.js gzip	2.78 kB	2.78 kB	✓
routerDirect..HASH.js gzip	322 B	322 B	✓
script-HASH.js gzip	392 B	392 B	✓
withRouter-HASH.js gzip	317 B	317 B	✓
85e02e95b279..7e3.css gzip	107 B	107 B	✓
Overall change	16.4 kB	16.4 kB	✓

Client Build Manifests

	vercel/next.js canary	sshyam-gupta/next.js show-build-warning-for-large-data	Change
_buildManifest.js gzip	458 B	458 B	✓
Overall change	458 B	458 B	✓

Rendered Page Sizes

	vercel/next.js canary	sshyam-gupta/next.js show-build-warning-for-large-data	Change
index.html gzip	532 B	532 B	✓
link.html gzip	547 B	547 B	✓
withRouter.html gzip	528 B	528 B	✓
Overall change	1.61 kB	1.61 kB	✓

Commit: 3eccb26

[ijjk]

Thanks for the PR!