Menene gateway na API kuma me yasa ake amfani da shi?

Question

Accepted Answer

**Garkuwar API** (gateway) wata yanayin shiga gida ce da ke zama gaba da ayyukanka masu tirewa. Cliyenti yana kiran garkuwar, wanda ke tukunyar bukatun zuwa sabis dama-dama da yake jefa alaikai da ke ketare juna.

## Abin da yake yi

- **Tukunyar** — karya `/orders/*` zuwa babbar sabis.
- **Tabbatarwa** — tabbatar da token sau daya a gefen kaifi.
- **Iyakacin jiya** — kariya sabis daga arziki mai damuni.
- **Taru** — haɗa kira sabuwa da jiya zuwa jibon gida.
- **Cire TLS, rubuta, ajiya.**

```text
            ┌─────────────────────────────┐
  Clients ─▶│        API Gateway          │
            │  auth · rate-limit · route  │
            └──┬──────────┬──────────┬────┘
               ▼          ▼          ▼
           Orders     Payments    Users
```

## Misalin saitawa

```yaml
# gateway routes
routes:
  - path: /orders/**
    service: orders-service   # forward order traffic here
    rateLimit: 100/min        # throttle abusive clients
  - path: /users/**
    service: users-service
    auth: required            # gateway enforces auth before routing
```

## Barazana

Garkuwar na iya zama **saurin baci gida" da mazugi. Bugi ta sannu sosai kuma jiyya jiya jiya daga jiya.

## Me yasa ya matuwa

Garkuwar ta tsara kowane sabis daga sake aikin tabbatarwa, iyakacin jiya, da TLS, da ta ba cliyenti URL mai tsayewa gida maimakon dasan.

Ba ta, cliyenti dole ne su san adireshin kowane sabis da ƙigira jiya-jiya ta ƙirama, wanda zai zamta kaifin saurin.