[FSSDK-12891] Switch npm publishing to OIDC trusted publishing (#345)

Replace long-lived PUBLISH_REACT_TO_NPM_FROM_GITHUB token with OIDC
trusted publishing for more secure, tokenless CI publishing to npm.

Workflow changes:
- Add id-token: write permission for OIDC token generation
- Move permissions to workflow level (add packages: write for GHR)
- Add GitHub environment gate (npm) for deployment protection
- Upgrade Node to 22, add npm upgrade step (OIDC requires npm 11.5.1+)
- Remove registry-url from setup-node (prevents .npmrc token entry
  that would conflict with OIDC)
- Remove PUBLISH_REACT_TO_NPM_FROM_GITHUB from npm publish step
- Add workflow_dispatch trigger for dry-run testing
- Add DRY_RUN env to both publish steps

publish.sh changes:
- Make NODE_AUTH_TOKEN optional in curl registry lookup (public
  packages don't need auth for reads)
- Add --provenance flag for npm registry publishes

GHR publish step unchanged — still uses GITHUB_TOKEN.

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: FarhanAnjum-opti

.github/workflows/react_release.yml

@@ -3,14 +3,19 @@ name: Publish React SDK
 on:
   release:
     types: [ published ]
+  workflow_dispatch: {}
+
+permissions:
+  id-token: write
+  contents: read
+  packages: write
 
 jobs:
   publish:
     name: Publish to NPM and GitHub Package Registry
     runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      packages: write
+    if: ${{ github.event_name == 'workflow_dispatch' || !github.event.release.draft }}
+    environment: npm
     steps:
     - name: Checkout branch
       uses: actions/checkout@v4
@@ -20,11 +25,12 @@ jobs:
     - name: Set up Node
       uses: actions/setup-node@v4
       with:
-        node-version: 18
-        registry-url: "https://registry.npmjs.org/"
-        always-auth: "true"
+        node-version: 22
         cache: 'npm'
 
+    - name: Upgrade npm for OIDC support
+      run: npm install -g npm@latest
+
     - name: Configure GHR auth
       run: echo "//npm.pkg.github.com/:_authToken=\${NODE_AUTH_TOKEN}" >> ~/.npmrc
 
@@ -39,14 +45,17 @@ jobs:
         tarball=$(npm pack --ignore-scripts | tail -n1)
         echo "tarball=$tarball" >> "$GITHUB_OUTPUT"
 
+    # npm publish uses OIDC trusted publishing (no token needed).
+    # publish.sh adds --provenance for supply-chain attestations.
     - name: Publish to NPM
       env:
-        NODE_AUTH_TOKEN: ${{ secrets.PUBLISH_REACT_TO_NPM_FROM_GITHUB }}
         TARBALL: ${{ steps.pack.outputs.tarball }}
+        DRY_RUN: ${{ github.event_name == 'workflow_dispatch' }}
       run: scripts/publish.sh "https://registry.npmjs.org" "$TARBALL"
 
     - name: Publish to GitHub Package Registry
       env:
         NODE_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         TARBALL: ${{ steps.pack.outputs.tarball }}
+        DRY_RUN: ${{ github.event_name == 'workflow_dispatch' }}
       run: scripts/publish.sh "https://npm.pkg.github.com" "$TARBALL"

scripts/publish.sh

@@ -88,8 +88,12 @@ trap 'rm -f "$body_file"' EXIT
 # curl -sS (no --fail) returns 0 for any HTTP response, non-zero only on
 # network/protocol errors — so we can cleanly separate "server answered" from
 # "could not reach server".
+auth_header=""
+if [[ -n "${NODE_AUTH_TOKEN:-}" ]]; then
+  auth_header="Authorization: Bearer ${NODE_AUTH_TOKEN}"
+fi
 if ! http_code=$(curl -sS -m 30 -o "$body_file" -w '%{http_code}' \
-      -H "Authorization: Bearer ${NODE_AUTH_TOKEN:-}" "$packument_url"); then
+      ${auth_header:+-H "$auth_header"} "$packument_url"); then
   echo "ERROR: request to ${packument_url} failed (network/timeout); refusing to publish on an ambiguous result." >&2
   exit 1
 fi
@@ -135,11 +139,16 @@ if [[ "$dry_run" == "true" ]]; then
   exit 0
 fi
 
+provenance_flag=""
+if [[ "$registry" == *"registry.npmjs.org"* ]]; then
+  provenance_flag="--provenance"
+fi
+
 echo "Publishing ${pkg}@${version} (tag: ${tag}) to ${registry}"
 if [[ -n "$tarball" ]]; then
   # The tarball is a prebuilt artifact; skip lifecycle scripts (prepublishOnly
   # = test + build) that would otherwise run from the current package.json.
-  npm publish "$tarball" --registry "$registry" --tag "$tag" --ignore-scripts
+  npm publish "$tarball" --registry "$registry" --tag "$tag" --ignore-scripts $provenance_flag
 else
-  npm publish --registry "$registry" --tag "$tag"
+  npm publish --registry "$registry" --tag "$tag" $provenance_flag
 fi