- name
- migrate-app-to-flows
- description
- MUST be used when migrating a legacy Dune app to the new Flows app hosting infrastructure. Orchestrates the full migration: audits current state, updates app.json to appsApi infra, delegates auth wiring to setup-flows-auth, creates or updates manifest.json network permissions, and updates deploy scripts to @cognite/cli. Use this whenever a user says 'migrate to Flows', 'migrate to new infra', 'move from dune to flows', 'migrate legacy app', or wants to move their existing app to the new Flows app hosting.
- allowed-tools
- Read, Glob, Grep, Edit, Write, Bash
- metadata
- {"argument-hint":""}
# Migrate App to Flows Infrastructure
Orchestrates the full migration of a legacy Dune app to the new Flows app hosting (`appsApi`). Works through each area in order, skipping any already in the correct state.
## Step 1 — Audit current state
Read `app.json`, `package.json`, `vite.config.ts`, and `manifest.json` (if present).
Report a concise summary before making any changes:
```
Migration audit:
✗ app.json: missing infra field → will add "infra": "appsApi"
✗ Auth: DuneAuthProvider in use → will run setup-flows-auth
✗ manifest.json: missing → will create
✓ Deploy script: already uses @cognite/cli
```
Then proceed through Steps 2–5.
---
## Step 2 — Update `app.json`
If `infra` is already `"appsApi"`, skip this step. Otherwise:
**Fix legacy deployment key format first.** Many POC apps use `"deployment"` (singular, plain object). The CLI requires `"deployments"` (plural, array). If the file has the old format, rename the key and wrap the value in an array before proceeding:
```json
// Before (legacy)
{
"deployment": { "org": "...", "project": "...", ... }
}
// After (correct)
{
"deployments": [{ "org": "...", "project": "...", ... }]
}
```
Then add `"infra": "appsApi"`:
```json
{
"name": "My App",
"externalId": "my-app",
"versionTag": "0.0.1",
"infra": "appsApi",
"deployments": [...]
}
```
---
## Step 3 — Set up Flows auth
Run the `setup-flows-auth` skill now. It handles everything auth-related: package installation, Vite plugin updates, entry file changes, and wiring up `connectToHostApp`.
---
## Step 4 — Create or update `manifest.json`
The Flows host uses `manifest.json` to enforce a Content Security Policy for the app. It must exist at the repo root.
**Create if missing:**
```json
{
"manifestVersion": 1,
"permissions": {
"network": []
}
}
```
**Populate network permissions** by scanning for outbound calls to external domains:
```bash
grep -rn "fetch\|axios\|new XMLHttpRequest" src/ --include="*.ts" --include="*.tsx"
```
For each group of external URLs found, add an entry to the `network` array using the `sources`/`directives` shape:
```json
{
"manifestVersion": 1,
"permissions": {
"network": [
{
"sources": ["https://api.example.com", "https://maps.googleapis.com"],
"directives": ["connect-src"]
}
]
}
}
```
Rules:
- Use full origin (scheme + hostname) in `sources`, not just the hostname.
- `"connect-src"` covers `fetch`/`XMLHttpRequest`. Use `"img-src"` for image URLs, `"font-src"` for fonts.
- The CDF cluster URL is allowed automatically; do not list it.
- If no external calls exist, leave `"network": []`.
- Flag any dynamic URLs the user needs to verify manually.
---
## Step 5 — Update deploy scripts
Replace any `dune deploy` or `npx @cognite/dune` commands in `package.json`:
```json
{
"scripts": {
"deploy": "npx @cognite/cli@latest apps deploy --interactive",
"deploy-preview": "npx @cognite/cli@latest apps deploy --interactive"
}
}
```
Keep all other scripts (`start`, `build`, `test`, etc.) unchanged.
---
## Step 6 — Final check
```bash
grep -rn "DuneAuthProvider\|useDune\|@cognite/dune" src/ vite.config.ts 2>/dev/null
```
List any remaining hits for the user to resolve. Then report:
```
Migration complete:
✓ app.json: infra set to "appsApi", deployments key is an array
✓ Auth: setup-flows-auth applied
✓ manifest.json: network permissions set
✓ Deploy scripts: updated to @cognite/cli
```
Then tell the user exactly what to do next:
```
Next steps:
1. Run `npm run dev` to start the dev server
2. Open Fusion and verify the app loads and CDF data appears correctly
3. When happy, deploy with: npx @cognite/cli@latest apps deploy --interactive
```
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