Upgrade Zod to 4.5 and migrate to Bun

.gitattributes

@@ -2,6 +2,3 @@
 * text=auto
 * text eol=lf
 *.zip binary
-# GitHub Linguist Override
-.yarn/* linguist-vendored
-.pnp.js linguist-vendored

.github/workflows/check.yml

@@ -14,13 +14,16 @@ jobs:
     steps:
       - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
-      - run: corepack enable
-
       - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version-file: ".nvmrc"
-          cache: "pnpm"
 
-      - run: pnpm install --frozen-lockfile
+      - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2
+        with:
+          bun-version: 1.4.1
+
+      - uses: dtolnay/rust-toolchain@stable
+
+      - run: bun install --frozen-lockfile
 
-      - run: pnpm check
+      - run: bun run check

.github/workflows/publish.yml

@@ -12,50 +12,55 @@ permissions:
   contents: read
 
 jobs:
-  build:
+  native:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-14, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2
+        with:
+          bun-version: 1.4.1
+      - uses: dtolnay/rust-toolchain@stable
+      - run: bun install --frozen-lockfile
+      - run: bun run build:native
+      - uses: actions/upload-artifact@v4
+        with:
+          name: native-${{ runner.os }}-${{ runner.arch }}
+          path: dist/*.node
+
+  publish:
+    needs: native
     runs-on: ubuntu-latest
     environment: v4
     steps:
       - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
-
-      - run: corepack enable
-
       - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version-file: ".nvmrc"
-          cache: "pnpm"
 
-      - run: pnpm install --frozen-lockfile
+      - uses: oven-sh/setup-bun@0c5077e51419868618aeaa5fe8019c62421857d6 # v2
+        with:
+          bun-version: 1.4.1
 
+      - run: bun install --frozen-lockfile
       - name: Set package version from tag
+        shell: bash
         run: |
           VERSION="${GITHUB_REF_NAME#v}"
           export VERSION
-
-          node <<'NODE'
-          const fs = require("fs");
-
-          const { VERSION: version } = process.env;
-
-          if (!/^\d+\.\d+\.\d+(?:-[0-9A-Za-z.-]+)?$/.test(version)) {
-            throw new Error(`Invalid release version: ${version}`);
-          }
-
-          const packageJsonPath = "package.json";
-          const packageJson = JSON.parse(fs.readFileSync(packageJsonPath, "utf8"));
-
-          packageJson.version = version;
-          fs.writeFileSync(packageJsonPath, `${JSON.stringify(packageJson, null, 2)}\n`);
-          NODE
-
-      - run: pnpm build
-
+          bun -e 'const packageJson = await Bun.file("package.json").json(); packageJson.version = process.env.VERSION; await Bun.write("package.json", `${JSON.stringify(packageJson, null, 2)}\n`);'
+      - run: bun run build:ts
+      - uses: actions/download-artifact@v4
+        with:
+          pattern: native-*
+          path: dist
+          merge-multiple: true
       - run: npm pack
-
       - name: Publish release
         if: "!contains(github.ref, '-rc.')"
         run: npm publish --access=public
-
       - name: Publish release candidate
         if: contains(github.ref, '-rc.')
         run: npm publish --access=public --tag next

.gitignore

@@ -1,11 +1,3 @@
-# yarn
-.yarn/*
-#!.yarn/cache
-!.yarn/patches
-!.yarn/plugins
-!.yarn/releases
-!.yarn/sdks
-
 /output
 /dist
 

.oxfmtrc.json

@@ -1,4 +1,4 @@
 {
   "$schema": "./node_modules/oxfmt/configuration_schema.json",
-  "ignorePatterns": ["**/*.hbs", "node_modules", ".yarn", "test/generated/**"]
+  "ignorePatterns": ["**/*.hbs", "node_modules", "test/generated/**"]
 }

.tool-versions

@@ -0,0 +1 @@
+bun 1.4.1

README.md

@@ -13,13 +13,13 @@ The tool partially leverages code from [openapi-zod-client](https://github.com/a
 ## Setup
 
 ```bash
-yarn add @povio/openapi-codegen-cli
+bun add @povio/openapi-codegen-cli
 ```
 
 ## Example
 
 ```bash
-yarn openapi-codegen generate --input http://localhost:3001/docs-json
+bunx openapi-codegen generate --input http://localhost:3001/docs-json
 ```
 
 ## Configuration Files
@@ -46,7 +46,7 @@ export default config;
 Then run without arguments:
 
 ```bash
-yarn openapi-codegen generate
+bunx openapi-codegen generate
 ```
 
 ### Configuration File Discovery
@@ -58,7 +58,7 @@ The CLI automatically searches for the TypeScript configuration file:
 You can also specify a custom configuration file:
 
 ```bash
-yarn openapi-codegen generate --config my-config.ts
+bunx openapi-codegen generate --config my-config.ts
 ```
 
 ## Options
@@ -89,7 +89,8 @@ yarn openapi-codegen generate --config my-config.ts
   --modelsInCommon                    Keep all schema declarations in defaultTag models and emit per-module proxy exports (default: false)
   --replaceOptionalWithNullish        Replace `.optional()` chains with `.nullish()` in generated Zod schemas (default: false)
 
-  --axiosRequestConfig                Include Axios request config parameters in query hooks (default: false)
+  --restClient                        REST transport to generate: 'axios' or 'native' (default: 'axios')
+  --axiosRequestConfig                Include transport request config parameters in query hooks (default: false)
   --infiniteQueries                   Generate infinite queries for paginated API endpoints (default: false)
   --mutationEffects                   Add mutation effects options to mutation hooks (default: true)
   --mutationScope                     Serialize mutations for the same path-param resource via TanStack scope.id (default: false).
@@ -132,29 +133,76 @@ yarn openapi-codegen generate --config my-config.ts
 #### Test locally
 
 ```bash
-# prerequisites
-corepack install
-yarn
+# install dependencies
+bun install
 
 # run tests
-yarn test
+bun run test
 
-# run sources with tsx
-yarn start --help
-yarn start generate --input ./test/petstore.yaml --verbose
+# run TypeScript sources directly with Bun
+bun run start --help
+bun run start generate --input ./test/petstore.yaml --verbose
 
 # build new version
-yarn build
+bun run build
 
 # test build
-yarn start --help
-yarn start:dist generate --input ./test/petstore.yaml --verbose
+bun run start --help
+bun run start:dist generate --input ./test/petstore.yaml --verbose
 ```
 
+### Native Bun code generation
+
+The Bun and Node.js CLIs and the Vite plugin automatically use the bundled Rust code-generation core when a compatible native binary is available. Generated files remain byte-for-byte compatible with the TypeScript implementation, which is retained as the fallback when the addon cannot be loaded.
+
+Set `OPENAPI_CODEGEN_NATIVE=0` to force the TypeScript path, or `OPENAPI_CODEGEN_NATIVE=1` to require the native path and fail when its binary is unavailable.
+
+Release packages include native binaries for Linux x64, macOS arm64, and Windows x64. Build a binary for the current platform with `bun run build:native`.
+
 ## Common Issues
 
 ### App REST Client Interceptors
 
+Select the fetch-based client without changing endpoint and query APIs:
+
+```ts
+import type { OpenAPICodegenConfig } from "@povio/openapi-codegen-cli";
+
+export default {
+  restClient: "native",
+} satisfies OpenAPICodegenConfig;
+```
+
+Native mode imports common request/response contracts from `@povio/openapi-codegen-cli/rest` and the concrete
+`NativeRestClient` from `@povio/openapi-codegen-cli/native`. It uses `fetch` for normal requests and uploads, switching
+to `XMLHttpRequest` in browsers only when an upload progress callback is provided.
+
+Native interceptors use the common transport interface:
+
+```ts
+import { NativeRestClient } from "@povio/openapi-codegen-cli/native";
+import type { RestTransportInterceptor } from "@povio/openapi-codegen-cli/rest";
+
+const authorizationInterceptor: RestTransportInterceptor = {
+  onRequest(request) {
+    request.headers.set("Authorization", `Bearer ${localStorage.getItem("accessToken")}`);
+    return request;
+  },
+};
+
+export const AppRestClient = new NativeRestClient({
+  config: { baseURL: "https://api.example.com" },
+  interceptors: [authorizationInterceptor],
+});
+```
+
+Axios remains the default for backward compatibility. The existing Axios interceptor API remains available in Axios
+mode.
+
+Native mode does not run the library `ErrorHandler` or create `ApplicationException` values. It throws `HttpError` for
+non-success HTTP responses and preserves Zod, network, cancellation, and timeout errors so applications can handle them
+directly in query callbacks, error boundaries, or their own normalization layer.
+
 In order to add interceptors to the used REST client, you must create your own instance of a RestClient and pass your implemented interceptors into the constructor. Make sure to set `restClientImportPath` in your openapi generation configuration too.
 
 ```ts