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Swarm/DysonNetwork.Insight/Thought/README.md
2025-10-25 23:32:51 +08:00

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# DysonNetwork Insight Thought API
The Thought API provides conversational AI capabilities for users of the Solar Network. It allows users to engage in chat-like conversations with an AI assistant powered by semantic kernel and connected to various tools.
This service is handled by the Insight, when using with the Gateway, the `/api` should be replaced with `/insight`
## Features
- Streaming chat responses using Server-Sent Events (SSE)
- Conversation context management with sequences
- Caching for improved performance
- Authentication required for all operations
## Endpoints
### POST /api/thought
Initiates or continues a chat conversation.
#### Parameters
- `UserMessage` (string, required): The message from the user
- `SequenceId` (Guid, optional): ID of existing conversation sequence. If not provided, a new sequence is created.
#### Response
- Content-Type: `text/event-stream`
- Streaming response with assistant messages
- Status: 401 if not authenticated
- Status: 403 if sequence doesn't belong to user
#### Example Usage
```bash
curl -X POST "http://localhost:5000/api/thought" \
-H "Content-Type: application/json" \
-d '{
"UserMessage": "Hello, how can I help with the Solar Network?",
"SequenceId": null
}'
```
### GET /api/thought/sequences
Lists all thinking sequences for the authenticated user.
#### Parameters
- `offset` (int, default 0): Number of sequences to skip for pagination
- `take` (int, default 20): Maximum number of sequences to return
#### Response
- `200 OK`: Array of `SnThinkingSequence`
- `401 Unauthorized`: If not authenticated
- Headers:
- `X-Total`: Total number of sequences before pagination
#### Example Usage
```bash
curl -X GET "http://localhost:5000/api/thought/sequences?take=10"
```
### GET /api/thought/sequences/{sequenceId}
Retrieves all thoughts (messages) in a specific conversation sequence.
#### Parameters
- `sequenceId` (Guid, path): ID of the sequence to retrieve
#### Response
- `200 OK`: Array of `SnThinkingThought` ordered by creation date
- `401 Unauthorized`: If not authenticated
- `404 Not Found`: If sequence doesn't exist or doesn't belong to user
#### Example Usage
```bash
curl -X GET "http://localhost:5000/api/thought/sequences/12345678-1234-1234-1234-123456789abc"
```
## Data Models
### StreamThinkingRequest
```csharp
{
string UserMessage, // Required
Guid? SequenceId // Optional
}
```
### SnThinkingSequence
```csharp
{
Guid Id,
string? Topic,
Guid AccountId
}
```
### SnThinkingThought
```csharp
{
Guid Id,
string? Content,
List<SnCloudFileReferenceObject> Files,
ThinkingThoughtRole Role,
Guid SequenceId,
SnThinkingSequence Sequence
}
```
### ThinkingThoughtRole (enum)
- `Assistant`
- `User`
## Caching
The API uses Redis-based caching for conversation thoughts:
- Thoughts are cached for 10 minutes with group-based invalidation
- Cache is invalidated when new thoughts are added to a sequence
- Improves performance for accessing conversation history
## Authentication
All endpoints require authentication through the current user session. Sequence access is validated against the authenticated user's account ID.
## Error Responses
- `401 Unauthorized`: Authentication required
- `403 Forbidden`: Access denied (sequence ownership)
- `404 Not Found`: Resource not found
## Streaming Details
The POST endpoint returns a stream of assistant responses using Server-Sent Events format. Clients should handle the streaming response and display messages incrementally.
## Implementation Notes
- Built with ASP.NET Core and Semantic Kernel
- Uses PostgreSQL via Entity Framework Core
- Integrated with Ollama for AI completion
- Caching via Redis