# Protocol Capability Matrix

## 1. Назначение документа

Этот документ фиксирует capability matrix по всем protocol families и execution modes.

Он нужен как source of truth для:

- UI availability rules;
- admin-api validation;
- runtime dispatch;
- roadmap planning.

## 2. Matrix by protocol and execution mode

| Protocol | Unary | Window | Session | Async Job | Notes |
| --- | --- | --- | --- | --- | --- |
| REST | Yes | Yes | Yes | Yes | window/session используют SSE или bounded polling |
| GraphQL | Yes | No | No | Limited | async job только как явная status/result workflow model |
| gRPC | Yes | Yes | Yes | Yes | только unary и server-streaming |
| WebSocket | No | Yes | Yes | Yes | upstream-only adapter |
| SOAP | Yes | Limited | No | Yes | request-response first, async через separate workflow contract |

## 3. Matrix by protocol and transport behavior

| Protocol | Request/Response | Server Stream | Stateful Session |
| --- | --- | --- | --- |
| REST | Yes | Yes | Limited |
| GraphQL | Yes | No | No |
| gRPC | Yes | Yes | Yes |
| WebSocket | No | Yes | Yes |
| SOAP | Yes | Limited | No |

## 4. Matrix by protocol and artifact requirements

| Protocol | Sample JSON | Descriptor | WSDL/XSD | Query Template | Subscribe Template |
| --- | --- | --- | --- | --- | --- |
| REST | Optional | No | No | No | Optional |
| GraphQL | Optional | No | No | Yes | No |
| gRPC | Optional | Yes | No | No | No |
| WebSocket | Optional | No | No | No | Yes |
| SOAP | Optional | No | Yes | No | No |

## 5. Matrix by protocol and auth support

| Protocol | None | Bearer | Basic | API Key Header | API Key Query | WS-Security |
| --- | --- | --- | --- | --- | --- | --- |
| REST | Yes | Yes | Yes | Yes | Yes | No |
| GraphQL | Yes | Yes | Yes | Yes | Limited | No |
| gRPC | Yes | Yes | Yes | Limited | No | No |
| WebSocket | Yes | Yes | Yes | Yes | Limited | No |
| SOAP | Yes | Yes | Yes | Limited | Limited | Future |

## 6. Matrix by protocol and UI blocks

| UI Block | REST | GraphQL | gRPC | WebSocket | SOAP |
| --- | --- | --- | --- | --- | --- |
| Endpoint URL | Yes | Yes | No | Yes | Optional |
| Method selector | Yes | No | No | No | No |
| Query template | No | Yes | No | No | No |
| Descriptor upload | No | No | Yes | No | No |
| WSDL upload | No | No | No | No | Yes |
| Subscribe template | Optional | No | No | Yes | No |
| Subprotocol list | No | No | No | Yes | No |
| SOAP headers | No | No | No | No | Yes |
| Stream kind selector | Optional | No | Yes | Yes | Limited |

## 7. Validation rules matrix

## 7.1. Unsupported combinations

- `GraphQL + Window`
- `GraphQL + Session`
- `WebSocket + Unary`
- `SOAP + Session`
- `gRPC + Session` для non-server-streaming method
- `REST + Server Stream` без stream-capable target model

## 7.2. Conditionally supported combinations

- `GraphQL + Async Job`
  Требует отдельного status/result workflow contract.

- `SOAP + Window`
  Допускается только для polling-style workflow, а не для native stream.

- `SOAP + Async Job`
  Требует отдельной operation family для status/result.

## 8. Product-wave grouping

### Wave 1

- REST
- GraphQL query/mutation
- gRPC unary
- Streamable HTTP downstream
- Window/session/job core model

### Wave 2

- REST SSE
- gRPC server-streaming
- session/job tool families
- streaming UI

### Wave 3

- WebSocket upstream adapter
- richer streaming observability

### Wave 4

- SOAP foundation
- WSDL/XSD tooling
- SOAP UI flow

### Wave 5

- GraphQL subscriptions
- gRPC client-streaming
- gRPC bidi
- advanced enterprise security stacks