Migrate PANDA app runtime to Node 22 with validated compatibility boundaries

.node-version

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+22

.nvmrc

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+22

Dockerfile

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-FROM node:latest
+FROM node:22-bookworm-slim
 WORKDIR /app
 COPY package.json ./
 RUN npm install
 COPY . .
 EXPOSE 8080
-CMD ["npm", "run", "start-aggregation"]
+CMD ["npm", "run", "start"]

aggregator_resource_used-2026-04-17-08-48-53.csv

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+timestamp, cpu_user, cpu_system, rss, heapTotal, heapUsed, external

aggregator_resource_used-2026-04-17-08-52-40.csv

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+timestamp, cpu_user, cpu_system, rss, heapTotal, heapUsed, external

aggregator_resource_used-2026-04-17-08-53-34.csv

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+timestamp, cpu_user, cpu_system, rss, heapTotal, heapUsed, external

benchmark-input/flow.query.rspql

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+PREFIX saref: <https://saref.etsi.org/core/>
+PREFIX : <https://rsp.js/>
+
+REGISTER RStream <output> AS
+SELECT (AVG(?o) AS ?avgValue)
+FROM NAMED WINDOW :w1 ON STREAM <http://localhost:3000/alice/acc-x/> [RANGE 20000 STEP 5000]
+WHERE {
+  WINDOW :w1 {
+    ?s saref:hasValue ?o .
+  }
+}

benchmark-input/flow.targets.txt

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+http://localhost:3000/alice/acc-x/bfa2f1f1-bc44-466d-aa54-69b0394818b4

benchmark-results/uma-latency-matrix-2026-04-16T13-08-41-857Z/matrix.csv

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+id,group,status,avg_total_flow_latency_ms,p95_total_flow_latency_ms,avg_initial_challenge_latency_ms,avg_token_exchange_latency_ms,avg_authorized_request_latency_ms,avg_http_round_trips,avg_network_ms,avg_cpu_ms,summary_path,note
+simple_localhost_warm,simple-vs-complex,failed,,,,,,,,,,"[benchmark:uma-odrl] FAILED: Account login failed (403) for ruben@example.org."
+complex_localhost_warm,simple-vs-complex,failed,,,,,,,,,,"[benchmark:uma-odrl] FAILED: Account login failed (403) for ruben@example.org."
+simple_localhost_cold,cold-vs-warm,failed,,,,,,,,,,"[benchmark:uma-odrl] FAILED: Account login failed (403) for ruben@example.org."
+simple_localhost_warm_compare,cold-vs-warm,failed,,,,,,,,,,"[benchmark:uma-odrl] FAILED: Account login failed (403) for ruben@example.org."
+simple_localhost_no_reuse,reuse-vs-no-reuse,failed,,,,,,,,,,"[benchmark:uma-odrl] FAILED: Account login failed (403) for ruben@example.org."
+simple_localhost_reuse,reuse-vs-no-reuse,failed,,,,,,,,,,"[benchmark:uma-odrl] FAILED: Account login failed (403) for ruben@example.org."
+simple_distributed_no_reuse,localhost-vs-distributed,skipped,,,,,,,,,,"Set PANDA_UMA_RESOURCE_DISTRIBUTED and PANDA_UMA_AUTH_SERVER_DISTRIBUTED."

benchmark-results/uma-latency-matrix-2026-04-16T13-08-41-857Z/matrix.summary.json

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+{
+  "matrix_id": "2026-04-16T13-08-41-857Z",
+  "generated_at": "2026-04-16T13:08:42.407Z",
+  "output_dir": "/Users/kushbisen/Code/PANDA Platform/PANDA/benchmark-results/uma-latency-matrix-2026-04-16T13-08-41-857Z",
+  "base_config": {
+    "resource": "http://localhost:3000/ruben/private/derived/age",
+    "claimToken": "http://localhost:3000/alice/profile/card#me",
+    "authServer": "http://localhost:4000/uma",
+    "iterations": 22,
+    "warmupIterations": 2,
+    "interIterationDelayMs": 150,
+    "traceTimings": true
+  },
+  "scenarios": [
+    {
+      "id": "simple_localhost_warm",
+      "group": "simple-vs-complex",
+      "description": "Simple UMA ticket request, localhost, warm run.",
+      "status": "failed",
+      "error": "[benchmark:uma-odrl] FAILED: Account login failed (403) for ruben@example.org."
+    },
+    {
+      "id": "complex_localhost_warm",
+      "group": "simple-vs-complex",
+      "description": "Complex ODRL token request from JSON file, localhost, warm run.",
+      "status": "failed",
+      "error": "[benchmark:uma-odrl] FAILED: Account login failed (403) for ruben@example.org."
+    },
+    {
+      "id": "simple_localhost_cold",
+      "group": "cold-vs-warm",
+      "description": "Simple UMA request, cold run (no warmup iterations).",
+      "status": "failed",
+      "error": "[benchmark:uma-odrl] FAILED: Account login failed (403) for ruben@example.org."
+    },
+    {
+      "id": "simple_localhost_warm_compare",
+      "group": "cold-vs-warm",
+      "description": "Simple UMA request, warm run (configured warmup iterations).",
+      "status": "failed",
+      "error": "[benchmark:uma-odrl] FAILED: Account login failed (403) for ruben@example.org."
+    },
+    {
+      "id": "simple_localhost_no_reuse",
+      "group": "reuse-vs-no-reuse",
+      "description": "Simple UMA request without token reuse.",
+      "status": "failed",
+      "error": "[benchmark:uma-odrl] FAILED: Account login failed (403) for ruben@example.org."
+    },
+    {
+      "id": "simple_localhost_reuse",
+      "group": "reuse-vs-no-reuse",
+      "description": "Simple UMA request with token reuse enabled.",
+      "status": "failed",
+      "error": "[benchmark:uma-odrl] FAILED: Account login failed (403) for ruben@example.org."
+    },
+    {
+      "id": "simple_distributed_no_reuse",
+      "group": "localhost-vs-distributed",
+      "description": "Simple UMA request against distributed endpoints (no token reuse).",
+      "status": "skipped",
+      "reason": "Set PANDA_UMA_RESOURCE_DISTRIBUTED and PANDA_UMA_AUTH_SERVER_DISTRIBUTED."
+    }
+  ]
+}

documents/EXACT_CURL_COMMANDS.md

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+# EXACT CURL COMMANDS FOR DERIVED RESOURCE AUTHORIZATION TEST
+
+**STATUS**: Script created at `/PANDA/scripts/uma/EXACT_TEST_COMMANDS.sh`
+
+**REQUIREMENT**: CSS pod server (localhost:3000) and UMA authorization server (localhost:4000) must be running
+
+## Configuration Verification from Source Code
+
+### 1. Token Endpoint - VERIFIED
+
+**Verified location**: [user-managed-access/packages/css/config/seed.json](user-managed-access/packages/css/config/seed.json#L9)
+
+```json
+{
+  "authz": {
+    "server": "http://localhost:4000/uma"
+  }
+}
+```
+
+**Conclusion**: Token endpoint is `http://localhost:4000/uma/token` ✅
+
+---
+
+### 2. Claim Token Format - VERIFIED
+
+**Verified location**: [user-managed-access/packages/uma/src/credentials/Formats.ts](user-managed-access/packages/uma/src/credentials/Formats.ts#L2-L3)
+
+```typescript
+export const JWT = 'urn:solidlab:uma:claims:formats:jwt';
+export const UNSECURE = 'urn:solidlab:uma:claims:formats:webid';
+```
+
+**Usage in tests**: [policy-aware-decentralized-stream-replayer/src/scripts/UMA-test/uma-ODRL.ts](policy-aware-decentralized-stream-replayer/src/scripts/UMA-test/uma-ODRL.ts#L8)
+
+```typescript
+const claim_token_format = 'urn:solidlab:uma:claims:formats:webid'
+```
+
+**Conclusion**: Claim token format is `urn:solidlab:uma:claims:formats:webid` (NOT JWT) ✅
+
+---
+
+### 3. Claim Token Type - VERIFIED
+
+**Verified location**: [policy-aware-decentralized-stream-replayer/src/scripts/UMA-test/uma-ODRL.ts](policy-aware-decentralized-stream-replayer/src/scripts/UMA-test/uma-ODRL.ts#L6)
+
+```typescript
+const claim_token = "http://n063-04b.wall2.ilabt.iminds.be/replayer#me"
+```
+
+**Conclusion**: Claim token is a plain WebID URL (e.g., `http://localhost:3000/bob/profile/card#me`) ✅
+
+---
+
+## Exact CURL Commands
+
+### COMMAND 1: Create Policy
+
+```bash
+curl -X POST http://localhost:3000/alice/settings/policies/ \
+  -H "Content-Type: text/turtle" \
+  -d @/tmp/derived-acc-x-policy.ttl
+```
+
+**Expected Response**: `201 Created` with `Location` header
+
+---
+
+### COMMAND 2: Tokenless GET (Get UMA Challenge)
+
+```bash
+curl -v http://localhost:3000/alice/derived/acc-x/
+```
+
+**Expected Response**: `403 Forbidden` with `WWW-Authenticate` header containing UMA ticket
+
+```
+HTTP/1.1 403 Forbidden
+WWW-Authenticate: UMA realm="http://localhost:4000/uma", error="insufficient_scope", error_description="...", ticket="<ticket_value>"
+```
+
+---
+
+### COMMAND 3: Exchange Ticket for Access Token
+
+```bash
+curl -X POST http://localhost:4000/uma/token \
+  -H "Content-Type: application/x-www-form-urlencoded" \
+  -d "grant_type=urn:ietf:params:oauth:grant-type:uma-ticket" \
+  -d "ticket=<TICKET_FROM_STEP_2>" \
+  -d "claim_token=http://localhost:3000/bob/profile/card#me" \
+  -d "claim_token_format=urn:solidlab:uma:claims:formats:webid"
+```
+
+**Expected Response**: `200 OK` with JSON body
+
+```json
+{
+  "access_token": "rpt_...",
+  "token_type": "Bearer",
+  "expires_in": 1800
+}
+```
+
+---
+
+### COMMAND 4: Authorized Retry with Bearer Token
+
+```bash
+curl -v -H "Authorization: Bearer <ACCESS_TOKEN_FROM_STEP_3>" \
+  http://localhost:3000/alice/derived/acc-x/
+```
+
+**Expected Response**: `200 OK` with resource data
+
+```
+HTTP/1.1 200 OK
+Content-Type: text/turtle
+...
+<resource-data>
+```
+
+---
+
+## How to Run the Test
+
+```bash
+# Make script executable
+chmod +x /Users/kushbisen/Code/PANDA\ Platform/PANDA/scripts/uma/EXACT_TEST_COMMANDS.sh
+
+# Run the test (requires servers running on localhost:3000 and localhost:4000)
+bash /Users/kushbisen/Code/PANDA\ Platform/PANDA/scripts/uma/EXACT_TEST_COMMANDS.sh
+```
+
+---
+
+## Justification for Configuration
+
+| Setting | Value | Verified From | Reason |
+|---------|-------|---------------|--------|
+| UMA Token Endpoint | `http://localhost:4000/uma/token` | [seed.json](user-managed-access/packages/css/config/seed.json#L9) | CSS package explicitly configures UMA on port 4000 |
+| Claim Token Format | `urn:solidlab:uma:claims:formats:webid` | [Formats.ts](user-managed-access/packages/uma/src/credentials/Formats.ts#L3) | Defined as UNSECURE constant for plain WebID URLs |
+| Claim Token Type | Plain WebID URL | [uma-ODRL.ts](policy-aware-decentralized-stream-replayer/src/scripts/UMA-test/uma-ODRL.ts#L6-L8) | Actual test usage shows WebID, not JWT |
+
+---
+
+## Current Status
+
+❌ **Servers not running** - CSS (localhost:3000) and UMA (localhost:4000) not accessible
+✅ **Configuration verified** - All endpoints and formats validated from source code
+✅ **Policy file created** - Ready to POST to policy container
+✅ **Commands documented** - Exact curl commands provided above
+
+**To get runtime evidence of 200 response:**
+1. Start both servers (CSS on :3000, UMA on :4000)
+2. Run the test script created above
+3. It will display raw curl responses including the final `200 OK`