feat(typescript): add tutorial for writing policies with typescript/javascript

[esosaoh]

Description

Fix kubewarden/policy-sdk-js#190

Test

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Additional Information

Tradeoff

Potential improvement

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[jhkrug]

A minor few suggestions for consideration. From a few sources. I'll have another run through when they have been incorporated. Thank you. Looking good.

[esosaoh]

done! @jhkrug

[jhkrug]

Hi @esosaoh. I think this is the last set of changes. Just all for consistency and taking note of some terminology suggestions from the checkers. Nearly there. Thanks!

[jhkrug]

I can't get the tutorial to work at the moment.

[jhkrug]

When trying make all I am unsuccessful. Any suggestions?

Using

[~/projects/suse/kubewarden/testing/test-js-policy][main|u=]
‽ node --version
v24.0.1
[~/projects/suse/kubewarden/testing/test-js-policy][main|u=]
‽ javy --version
javy 6.0.0
[~/projects/suse/kubewarden/testing/test-js-policy][main|u=]
‽ kwctl --version
kwctl 1.28.1

Use the `info` command to display system information.

[~/projects/suse/kubewarden/testing/test-js-policy][main|u=]
‽ bats --version
Bats 1.12.0
[~/projects/suse/kubewarden/testing/test-js-policy][main|u=]
‽

I get:

⸘ git remote -v
origin	[email protected]:jhkrug/test-js-policy.git (fetch)
origin	[email protected]:jhkrug/test-js-policy.git (push)
[~/projects/suse/kubewarden/testing/test-js-policy][main|u=]
⸘ make clean
npm cache clean --force
npm warn using --force Recommended protections disabled.
rm -f policy.wasm annotated-policy.wasm
rm -rf dist dist-ts node_modules package-lock.json
[~/projects/suse/kubewarden/testing/test-js-policy][main *|u=]
‽ make all
npm install
npm warn deprecated [email protected]: This module is not supported, and leaks memory. Do not use it. Check out lru-cache if you want a good and tested way to coalesce async requests by a key value, which is much more comprehensive and powerful.
npm warn deprecated [email protected]: Glob versions prior to v9 are no longer supported

added 399 packages, and audited 400 packages in 14s

59 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities
npm run build

> [email protected] build
> npx webpack --config webpack.config.cjs

asset bundled.js 5.52 KiB [emitted] [minimized] (name: main)
asset types.d.ts 430 bytes [emitted]
asset index.d.ts 11 bytes [emitted]
./src/index.ts 3.84 KiB [built] [code generated]
./node_modules/kubewarden-policy-sdk/dist/bundle.js 3.85 KiB [built] [code generated]
webpack 5.101.3 compiled successfully in 1530 ms
npm install

added 1 package, and audited 401 packages in 996ms

59 packages are looking for funding
  run `npm fund` for details

found 0 vulnerabilities
javy build dist/bundled.js -C plugin=node_modules/kubewarden-policy-sdk/plugin/javy-plugin-kubewarden.wasm -o policy.wasm
Error: Could not process plugin: Using unsupported legacy plugin API
make: *** [Makefile:16: policy.wasm] Error 1
[~/projects/suse/kubewarden/testing/test-js-policy][main|u=]

[viccuad]

@esosaoh can you please check and list the needed changes for this to work?