ambiguous-pointer opened a new pull request, #1428:
URL: https://github.com/apache/dubbo-admin/pull/1428
# Service/Application Dependency Graph Enhancement
This change evolves the service/application dependency‑graph feature that
was introduced in the previous PR.
It keeps the original intent – tracing upstream/downstream relationships via
`ServiceProviderMetadataResource` and
`ServiceConsumerMetadataResource` – but adapts the backend to return a **new
node/edge schema** required by the front‑end.
---
## 📌 What’s New
* **Graph payload structure has changed**
The API now emits a richer “typed” graph similar to the example below.
Service nodes (interface names) and application nodes are both present;
each node declares
its `type` (`application` or `service`) plus a `rule`
(`provider`/`consumer`/empty).
* **Example response**
```json
{
"code": "Success",
"message": "success",
"data": {
"nodes": [
{
"id": "order-service",
"label": "order-service",
"type": "application",
"rule": "provider"
},
{
"id": "order-service-01",
"label": "order-service-01",
"type": "application",
"rule": "provider"
},
{
"id": "com.ecommerce.api.service.OrderService::",
"label": "com.ecommerce.api.service.OrderService::",
"type": "service",
"rule": ""
},
{
"id": "payment-service",
"label": "payment-service",
"type": "application",
"rule": "consumer"
}
],
"edges": [
{
"source": "com.ecommerce.api.service.OrderService::",
"target": "order-service",
"data": {
"type": "provides"
}
},
{
"source": "com.ecommerce.api.service.OrderService::",
"target": "order-service-01",
"data": {
"type": "provides"
}
},
{
"source": "payment-service",
"target": "com.ecommerce.api.service.OrderService::",
"data": {
"type": "consumes"
}
}
]
}
}
```
* **Maintained capabilities**
1. Filtering by `ServiceName` to narrow the graph to a single service.
2. Aggregating multiple versions/instances into app‑level nodes.
3. Utilising the same metadata resources as before.
4. Efficient edge deduplication via auxiliary maps.
---
## 📁 Affected Areas / Review Checklist
* [ ] Console API (`service` package handlers)
* [X] User Experience (graph visualization output)
* [ ] Core Component
* [ ] Docs
* [ ] Dubboctl
* [X] Feature
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