Microservices suna sabon juna ta yaushe?

Question

IT Interview Practice · Accepted Answer

Ayyuka suna sabon juna ko ta **haƙari** (bukatar/amsa akan REST ko gRPC) ko ta **carke** (saƙonnin/abubuwan taɓawa ta watsiya kamar Kafka ko RabbitMQ).

## Haƙari (bukatar/amsa)

Wanda ya gaida yana jira amsa. Sai da sauƙi da fahimtacce, amma yana haɗe samuwa — idan wanda aka gaida ya fadi, wanda ya gaida yana kusan kusan.

```http
GET /orders/42 HTTP/1.1
Host: orders-service
Accept: application/json
```

## Carke (saƙonnin/abubuwan taɓawa)

Wanda ya aika yana buga saƙo kuma ya ci gaba; masu gaji suna aiki dashi daga baya. Wannan yana rabuwa da ayyuka a lokaci.

```text
Order Service ──publish "OrderPlaced"──▶ [ Broker ] ──▶ Email Service
                                              │
                                              └──▶ Inventory Service
```

## Lokacin amfani da ina

| Bukatar | Zaɓi |
|---|---|
| Amsa nan da nan ga mai amfani | Haƙari |
| Rabuwa, ajiya, fan-out | Carke |
| Dangantaka mai ƙarfi a lokaci OK | Haƙari |
| Jiya ga buguwar sabon ayyuka | Carke |

## Cutin makawa

Tsere mai **haƙari** (A → B → C → D) yana ninka jinsi da rashin ƙudu. Yi gida ga carke ko taruwa inda zai yiwu.

## Me ya sa ya matuƙa

Sabon juna yana bubuga siffar tsaro na tsarin: karanton haƙari sauƙi ne wajen tunawa amma suna ƙirƙira haɗin aiki na lokaci, yayin da saƙonnin carke yana saiyan rabuwa amma a cikin kirƙira taɓawa.

Galibi tsarin ainiha suna haɗa duka — haƙari don karanto masu fudu, carke don ayyukan background.

Bukatar	Zaɓi
Amsa nan da nan ga mai amfani	Haƙari
Rabuwa, ajiya, fan-out	Carke
Dangantaka mai ƙarfi a lokaci OK	Haƙari
Jiya ga buguwar sabon ayyuka	Carke

Haƙari (bukatar/amsa)

Carke (saƙonnin/abubuwan taɓawa)

Lokacin amfani da ina

Cutin makawa

Me ya sa ya matuƙa

Tambayoyi masu alaƙa