Add zod module

[igalshilman]

const User = z.object({
  name: z.string(),
  age: z.number().optional(),
});

type User = z.infer<typeof User>;

const greeter = restate.service({
  name: "greeter",
  handlers: {
    greet: restate.handlers.handler(
      { input: serde.zod(User, "user") },
      async (ctx: restate.Context, user: User) => {
        return `Hello ${user.name}`;
      }
    ),
  },
});

[nikrooz]

lgtm 🤩

[nikrooz]

I think this should be

Suggested change

	"devDependencies": {
	"dependencies": {

[nikrooz]

never mind, we are only using the types from @restatedev/restate-sdk-core

[nikrooz]

and maybe this should be

Suggested change

	"dependencies": {
	"peerDependencies": {

[marcus-sa]

I appreciate that this is being made optional and not mandatory.

[mupperton]

@igalshilman - What am I doing wrong?

With deps:

    "@restatedev/restate-sdk": "0.0.0-SNAPSHOT-20241220152906",
    "@restatedev/restate-sdk-zod": "0.0.0-SNAPSHOT-20250312193516",
    "zod": "3.23.8",

[igalshilman]

@mupperton take the latest deps (delete the package-lock)

here is a usage example here: https://github.com/restatedev/sdk-typescript/blob/main/packages/restate-sdk-examples/src/zod_greeter.ts

[mupperton]

@igalshilman Found my issue, I had [email protected] but zod-to-json-schema required ^3.24.1 so had 2 versions installed with differing zod types

Btw that example doesn't have the zod packages listed in the package dependencies

[igalshilman]

@mupperton ok good to hear that is resolved!

But also the serde.zod( is a single argument parameter, it used to have 2, but not anymore. Did you had to change the code snippet as-well?

Also, how would you recommend to specify the dependencies in restate-sdk-zod package?

[mupperton]

Ah, the @latest tag on npm is pointing to an older snapshot, that's why I needed 2 args, but yeah the @dev tag does not

For specifying the deps, my only suggestion would be aligning the minimum zod version with that of zod-to-json-schema's minimum version, although it may be a pain to maintain if you bump versions on either