# Partial seeds

A seed may leave a record's id to the simulator, which gives it one shaped like Stripe's.

A scenario built from what your app read may know a record but not its id. Started with `RYSTIC_SEED_GATE=partial`, the simulator takes a seeded record that lists `id` under `_rystic_partial.mint` and gives it an id. Here a customer seeded without one gets `cus_` and 14 letters and digits, as on Stripe:

```bash
export RYSTIC_URL=$(rystic run stripe-twin -d --port 0 --name partial --env RYSTIC_SEED_GATE=partial --json | jq -r .data.url)
curl -s -X POST "$RYSTIC_URL/_rystic/seed" -o /dev/null -w '%{http_code}\n' -d '{"state_customer": {"new": {"_rystic_partial": {"mint": ["id"], "unknown": []}, "object": "customer", "email": "a@example.com"}}}'
# -> 204
curl -s "$RYSTIC_URL/v1/customers?email=a@example.com" -u sk_test_123: | jq -c '[.data[] | {id, email}]'
# -> [{"id":"cus_4k42PdogaEjSNO","email":"a@example.com"}]
```

These records take an id this way, behind Stripe's prefix:

| Record | Prefix |
|---|---|
| Customer | `cus_` |
| Product | `prod_` |
| Price | `price_` |
| Subscription | `sub_` |
| Subscription item | `si_` |
| Invoice | `in_` |
| Checkout Session | `cs_test_` |
| Billing portal session | `bps_` |

---

Source: https://www.rystic.ai/docs/simulators/stripe/features/partial-seeds · Markdown: https://www.rystic.ai/docs/simulators/stripe/features/partial-seeds.md