Feature/ai observability dashboard (#79)

* feat: add AI request details feature with latency tracking

Add comprehensive request history and debugging capability to the Usage dashboard:

**Storage Layer** (usageDb.js):
- Add saveRequestDetail() for storing full request/response details
- Implement FIFO queue with 1000-record limit in request-details.json
- Auto-sanitize sensitive headers (authorization, api-key, cookie, token)
- Add getRequestDetails() with pagination and filtering support
- Add getRequestDetailById() for single record lookup

**Pipeline Integration** (chatCore.js):
- Track request start time and calculate total latency
- Record TTFT (Time To First Token) and total latency for all requests
- Capture full request details (messages, model, parameters)
- Save response content for non-streaming, mark streaming responses
- Handle error cases with detailed error information
- Async non-blocking saves to avoid impacting request performance

**API Layer** (/api/usage/request-details):
- GET endpoint with pagination (page, pageSize: 1-100)
- Filter by provider, model, connectionId, status, date range
- Returns { details: [...], pagination: {...} } format

**UI Components**:
- Drawer.js: Right slide-out panel with backdrop blur and ESC close
- Pagination.js: Full pagination with page size selector (10/20/50)
- RequestDetailsTab.js: Complete table view with filters and detail drawer

**Dashboard Integration**:
- Add "Details" tab to Usage page (4th tab after Overview/Logger/Limits)
- Table columns: Timestamp, Model, Provider, Input Tokens, Output Tokens, Latency (TTFT/Total), Action
- Provider filter dropdown (9 providers supported)
- Date range filters (start/end datetime)
- Click "Detail" button to view full request/response JSON in slide-out drawer

**Features**:
- Real-time latency monitoring (TTFT & Total)
- Complete request/response inspection for debugging
- Filterable and searchable request history
- Responsive design with mobile-friendly filters
- Data security with automatic header sanitization
- Performance: async saves don't block request pipeline

**Files Created/Modified**:
- src/lib/usageDb.js (modified)
- open-sse/handlers/chatCore.js (modified)
- src/app/api/usage/request-details/route.js (new)
- src/shared/components/Drawer.js (new)
- src/shared/components/Pagination.js (new)
- src/app/(dashboard)/dashboard/usage/components/RequestDetailsTab.js (new)
- src/app/(dashboard)/dashboard/usage/page.js (modified)

Closes: AI Observability Dashboard feature

* feat: enhance request details with full config and streaming content capture

Improve Request Details feature to capture comprehensive request parameters
and actual streaming response content:

**Request Configuration Enhancement** (chatCore.js):
- Add extractRequestConfig() helper function to capture all request parameters
- Include temperature controls: temperature, top_p, top_k
- Include token limits: max_tokens, max_completion_tokens
- Include thinking/reasoning modes: thinking, reasoning, enable_thinking
- Include OpenAI parameters: presence_penalty, frequency_penalty, seed, stop,
  tools, tool_choice, response_format, n, logprobs, top_logprobs, logit_bias,
  user, parallel_tool_calls, prediction, store, metadata
- Apply to all request types: non-streaming, streaming, and error cases

**Streaming Content Capture** (chatCore.js & stream.js):
- Add onStreamComplete callback mechanism to stream processors
- Accumulate content from all formats: OpenAI, Claude, Gemini
- Track content from delta.content, delta.reasoning_content, delta.text,
  delta.thinking, and Gemini content.parts
- Save initial record with "[Streaming in progress...]" marker
- Update record with actual content when stream completes
- Include usage tokens when available from stream

**Files Modified**:
- open-sse/handlers/chatCore.js - extractRequestConfig() + streaming capture
- open-sse/utils/stream.js - onStreamComplete callback + content accumulation

**Benefits**:
- View complete request configuration in Request Details (thinking mode, etc.)
- See actual streaming response content instead of placeholder
- Better debugging and observability for AI requests

Refs: #request-details-enhancement

* feat: separate thinking/reasoning content from response content

Improve Request Details to display thinking process separately from final response:

**Backend Changes**:
- stream.js: Capture content and thinking separately in streaming mode
  - Add accumulatedThinking variable alongside accumulatedContent
  - Route delta.content to content, delta.reasoning_content to thinking
  - Support OpenAI (reasoning_content), Claude (thinking), Gemini (part.thought)
  - Update onStreamComplete callback to return { content, thinking } object

- chatCore.js: Update response structure to include thinking field
  - Non-streaming: Extract thinking from reasoning_content field
  - Streaming: Receive { content, thinking } from stream callback
  - Error responses: Include thinking: null
  - Initial streaming save: Include thinking: null

**Frontend Changes**:
- RequestDetailsTab.js: Display thinking and content in separate sections
  - Add amber/yellow themed "Thinking Process" section with psychology icon
  - Show "Final Response" label when thinking is present
  - Use distinct visual styling for thinking (amber bg) vs content (gray bg)
  - Only show thinking section when thinking content exists

**Benefits**:
- Users can clearly see model's reasoning process vs final answer
- Better debugging for models with thinking capabilities (Claude, o1, etc.)
- Visual distinction makes it easy to identify thinking vs response

Refs: #thinking-content-separation

* fix: map Claude thinking to reasoning_content field

Fix Claude thinking content to be properly captured as reasoning_content
instead of regular content, enabling separate display in Request Details:

**Changes**:
- claude-to-openai.js: Use reasoning_content field for thinking blocks
  - thinking start: send { reasoning_content: "" } instead of { content: "```\n```" }
  - thinking delta: map to reasoning_content instead of content
  - thinking stop: send { reasoning_content: "" } instead of { content: "```\n```" }

**Why This Matters**:
- Previously Claude thinking was sent as `content` field, mixed with actual response
- Now thinking uses `reasoning_content` field, matching OpenAI's o1 format
- stream.js can now properly route thinking to accumulatedThinking variable
- Request Details UI will show Claude thinking in separate "Thinking Process" section

**Supported Thinking Formats**:
- OpenAI: delta.reasoning_content → thinking
- Claude: delta.thinking → reasoning_content (now fixed)
- Gemini: part.thought === true → thinking

Refs: #claude-thinking-fix

* feat(observability): capture and display full 4-layer request chain

Capture complete request/response chain in AI Request Details:
- Add providerRequest field (translated request sent to provider)
- Add providerResponse field (raw provider response, streaming indicator)
- Update chatCore.js at all 5 saveRequestDetail() call sites
- Reorganize UI into 4 collapsible sections with Material icons
- Preserve backward compatibility for old records
- Add distinct styling for streaming indicator

* fix(observability): resolve React duplicate key warning in request details table

- Use composite key (detail.id + index) to ensure unique keys
- Prevents React warnings when database contains duplicate IDs from old ID generation

* fix(observability): display actual content in streaming request details

Change providerResponse field for streaming requests from placeholder
"[Streaming - raw response not captured]" to actual final content.

This improves debugging experience by showing the real AI response
in the "Provider Response (Raw)" section instead of a confusing
placeholder message.

Files changed:
- open-sse/handlers/chatCore.js: Save contentObj.content to providerResponse
- src/app/.../RequestDetailsTab.js: Remove special handling for placeholder

* refactor(observability): migrate request details to SQLite for improved concurrency

- Replace LowDB JSON storage with better-sqlite3
- Enable WAL mode for true concurrent read/write support
- Add 5 indexes to accelerate queries (timestamp, provider, model, connection_id, status)
- Perform pagination at the database level to reduce memory footprint
- Maintain 1000 record limit with automatic cleanup of old data
- Ensure API compatibility via re-exports, requiring no caller changes

Performance improvements:
- Concurrent Writes: Lock-free WAL mode prevents data contention
- Query Efficiency: Index-based searches replace full dataset loading
- Data Integrity: Atomic operations prevent file corruption

* fix(observability): resolve pagination statistics display issues

- Fix issue where totalItems=0 showed 'Showing 1 to 0 of 0 results'
- Hide pagination controls when totalItems=0 or totalPages<=1
- Standardize API response fields: pagination.total -> pagination.totalItems

Before: Incorrect stats shown for empty data, and pager visible even for single-page results
After: Stats hidden for empty data, pager hidden when navigation is unnecessary

* feat(observability): display friendly provider names in request details

- Add /api/usage/providers endpoint to dynamically fetch provider list with names
- Replace hardcoded provider options with dynamic loading from database
- Display friendly provider names instead of IDs in both table and detail drawer
- Support custom provider nodes (e.g., OpenAI-compatible) with user-defined names
- Add provider name caching to optimize performance

* fix(observability): use INSERT OR REPLACE for request details to handle streaming updates

* fix(observability): resolve zero-token display issue by ensuring streaming usage capture and fixing key mismatch

* fix(observability): separate TTFT and total latency calculation for streaming requests

* feat(observability): implement SQLite write queue and JSON size limits

- Added in-memory buffer and batch writing for SQLite to prevent lock contention
- Implemented  with configurable 1MB limit to prevent DB bloat
- Added dashboard UI for observability performance and data management settings
- Integrated graceful shutdown handlers to prevent data loss

* fix(observability): resolve ReferenceError by declaring dbInstance
This commit is contained in:
Blade
2026-02-09 10:30:42 +07:00
committed by GitHub
parent 388389c972
commit 85b7a0b136
14 changed files with 1647 additions and 40 deletions
+186 -10
View File
@@ -10,7 +10,7 @@ import { getModelTargetFormat, PROVIDER_ID_TO_ALIAS } from "../config/providerMo
import { createErrorResult, parseUpstreamError, formatProviderError } from "../utils/error.js";
import { HTTP_STATUS } from "../config/constants.js";
import { handleBypassRequest } from "../utils/bypassHandler.js";
import { saveRequestUsage, trackPendingRequest, appendRequestLog } from "@/lib/usageDb.js";
import { saveRequestUsage, trackPendingRequest, appendRequestLog, saveRequestDetail } from "@/lib/usageDb.js";
import { getExecutor } from "../executors/index.js";
/**
@@ -225,6 +225,38 @@ function extractUsageFromResponse(responseBody, provider) {
return null;
}
/**
* Extract full request configuration from body
* Captures all relevant parameters for request details
*/
function extractRequestConfig(body, stream) {
const config = {
messages: body.messages || [],
model: body.model,
stream: stream
};
// Add all optional configuration parameters
const optionalParams = [
'temperature', 'top_p', 'top_k',
'max_tokens', 'max_completion_tokens',
'thinking', 'reasoning', 'enable_thinking',
'presence_penalty', 'frequency_penalty',
'seed', 'stop', 'tools', 'tool_choice',
'response_format', 'prediction', 'store', 'metadata',
'n', 'logprobs', 'top_logprobs', 'logit_bias',
'user', 'parallel_tool_calls'
];
for (const param of optionalParams) {
if (body[param] !== undefined) {
config[param] = body[param];
}
}
return config;
}
/**
* Convert OpenAI-style SSE chunks into a single non-streaming JSON response.
* Used as a fallback when upstream returns text/event-stream for stream=false.
@@ -315,6 +347,7 @@ function parseSSEToOpenAIResponse(rawSSE, fallbackModel) {
*/
export async function handleChatCore({ body, modelInfo, credentials, log, onCredentialsRefreshed, onRequestSuccess, onDisconnect, clientRawRequest, connectionId, userAgent }) {
const { provider, model } = modelInfo;
const requestStartTime = Date.now();
const sourceFormat = detectFormat(body);
@@ -407,6 +440,26 @@ export async function handleChatCore({ body, modelInfo, credentials, log, onCred
} catch (error) {
trackPendingRequest(model, provider, connectionId, false);
appendRequestLog({ model, provider, connectionId, status: `FAILED ${error.name === "AbortError" ? 499 : HTTP_STATUS.BAD_GATEWAY}` }).catch(() => { });
const errorDetail = {
provider: provider || "unknown",
model: model || "unknown",
connectionId: connectionId || undefined,
timestamp: new Date().toISOString(),
latency: { ttft: 0, total: Date.now() - requestStartTime },
tokens: { prompt_tokens: 0, completion_tokens: 0 },
request: extractRequestConfig(body, stream),
providerRequest: translatedBody || null,
providerResponse: null,
response: {
error: error.message || String(error),
status: error.name === "AbortError" ? 499 : 502,
thinking: null
},
status: "error"
};
saveRequestDetail(errorDetail).catch(() => {});
if (error.name === "AbortError") {
streamController.handleError(error);
return createErrorResult(499, "Request aborted");
@@ -463,6 +516,26 @@ export async function handleChatCore({ body, modelInfo, credentials, log, onCred
trackPendingRequest(model, provider, connectionId, false);
const { statusCode, message, retryAfterMs } = await parseUpstreamError(providerResponse, provider);
appendRequestLog({ model, provider, connectionId, status: `FAILED ${statusCode}` }).catch(() => { });
const errorDetail = {
provider: provider || "unknown",
model: model || "unknown",
connectionId: connectionId || undefined,
timestamp: new Date().toISOString(),
latency: { ttft: 0, total: Date.now() - requestStartTime },
tokens: { prompt_tokens: 0, completion_tokens: 0 },
request: extractRequestConfig(body, stream),
providerRequest: finalBody || translatedBody || null,
providerResponse: null,
response: {
error: message,
status: statusCode,
thinking: null
},
status: "error"
};
saveRequestDetail(errorDetail).catch(() => {});
const errMsg = formatProviderError(new Error(message), provider, model, statusCode);
console.log(`${COLORS.red}[ERROR] ${errMsg}${COLORS.reset}`);
@@ -531,6 +604,37 @@ export async function handleChatCore({ body, modelInfo, credentials, log, onCred
translatedResponse.usage = filterUsageForFormat(buffered, sourceFormat);
}
const totalLatency = Date.now() - requestStartTime;
const requestDetail = {
provider: provider || "unknown",
model: model || "unknown",
connectionId: connectionId || undefined,
timestamp: new Date().toISOString(),
latency: {
ttft: totalLatency,
total: totalLatency
},
tokens: usage || { prompt_tokens: 0, completion_tokens: 0 },
request: extractRequestConfig(body, stream),
providerRequest: finalBody || translatedBody || null,
providerResponse: responseBody || null,
response: {
content: translatedResponse?.choices?.[0]?.message?.content ||
translatedResponse?.content ||
null,
thinking: translatedResponse?.choices?.[0]?.message?.reasoning_content ||
translatedResponse?.reasoning_content ||
null,
finish_reason: translatedResponse?.choices?.[0]?.finish_reason || "unknown"
},
status: "success"
};
// Async save (don't block response)
saveRequestDetail(requestDetail).catch(err => {
console.error("[RequestDetail] Failed to save:", err.message);
});
return {
success: true,
response: new Response(JSON.stringify(translatedResponse), {
@@ -556,31 +660,103 @@ export async function handleChatCore({ body, modelInfo, credentials, log, onCred
"Access-Control-Allow-Origin": "*"
};
// Create transform stream with logger for streaming response
let streamContent = "";
let streamUsage = null;
const streamDetailId = `${Date.now()}-${Math.random().toString(36).slice(2, 11)}`;
const onStreamComplete = (contentObj, usage, ttftAt) => {
// contentObj is object { content, thinking }
streamUsage = usage;
const updatedDetail = {
provider: provider || "unknown",
model: model || "unknown",
connectionId: connectionId || undefined,
timestamp: new Date().toISOString(),
latency: {
ttft: ttftAt ? ttftAt - requestStartTime : Date.now() - requestStartTime,
total: Date.now() - requestStartTime
},
tokens: usage || { prompt_tokens: 0, completion_tokens: 0 },
request: extractRequestConfig(body, stream),
providerRequest: finalBody || translatedBody || null,
providerResponse: contentObj.content || "[Empty streaming response]",
response: {
content: contentObj.content || "[Empty streaming response]",
thinking: contentObj.thinking || null,
type: "streaming"
},
status: "success",
id: streamDetailId
};
saveRequestDetail(updatedDetail).catch(err => {
console.error("[RequestDetail] Failed to update streaming content:", err.message);
});
// Save usage stats for dashboard
if (usage && typeof usage === 'object') {
const msg = `[${new Date().toLocaleTimeString("en-US", { hour12: false, hour: "2-digit", minute: "2-digit" })}] 📊 [STREAM USAGE] ${provider.toUpperCase()} | in=${usage?.prompt_tokens || 0} | out=${usage?.completion_tokens || 0}${connectionId ? ` | account=${connectionId.slice(0, 8)}...` : ""}`;
console.log(`${COLORS.green}${msg}${COLORS.reset}`);
saveRequestUsage({
provider: provider || "unknown",
model: model || "unknown",
tokens: usage,
timestamp: new Date().toISOString(),
connectionId: connectionId || undefined
}).catch(err => {
console.error("Failed to save streaming usage stats:", err.message);
});
}
};
let transformStream;
// For Codex provider, translate response from openai-responses to openai (Chat Completions) format
// UNLESS client is Droid CLI which expects openai-responses format back
const isDroidCLI = userAgent?.toLowerCase().includes('droid') || userAgent?.toLowerCase().includes('codex-cli');
const needsCodexTranslation = provider === 'codex'
&& targetFormat === 'openai-responses'
&& !isDroidCLI;
if (needsCodexTranslation) {
// Codex returns openai-responses, translate to openai (Chat Completions) that clients expect
log?.debug?.("STREAM", `Codex translation mode: openai-responses → openai`);
transformStream = createSSETransformStreamWithLogger('openai-responses', 'openai', provider, reqLogger, toolNameMap, model, connectionId, body);
transformStream = createSSETransformStreamWithLogger('openai-responses', 'openai', provider, reqLogger, toolNameMap, model, connectionId, body, onStreamComplete);
} else if (needsTranslation(targetFormat, sourceFormat)) {
// Standard translation for other providers
log?.debug?.("STREAM", `Translation mode: ${targetFormat}${sourceFormat}`);
transformStream = createSSETransformStreamWithLogger(targetFormat, sourceFormat, provider, reqLogger, toolNameMap, model, connectionId, body);
transformStream = createSSETransformStreamWithLogger(targetFormat, sourceFormat, provider, reqLogger, toolNameMap, model, connectionId, body, onStreamComplete);
} else {
log?.debug?.("STREAM", `Standard passthrough mode`);
transformStream = createPassthroughStreamWithLogger(provider, reqLogger, model, connectionId, body);
transformStream = createPassthroughStreamWithLogger(provider, reqLogger, model, connectionId, body, onStreamComplete);
}
// Pipe response through transform with disconnect detection
const transformedBody = pipeWithDisconnect(providerResponse, transformStream, streamController);
const totalLatency = Date.now() - requestStartTime;
const streamingDetail = {
provider: provider || "unknown",
model: model || "unknown",
connectionId: connectionId || undefined,
timestamp: new Date().toISOString(),
latency: {
ttft: 0,
total: Date.now() - requestStartTime
},
tokens: { prompt_tokens: 0, completion_tokens: 0 },
request: extractRequestConfig(body, stream),
providerRequest: finalBody || translatedBody || null,
providerResponse: "[Streaming - raw response not captured]",
response: {
content: "[Streaming in progress...]",
thinking: null,
type: "streaming"
},
status: "success",
id: streamDetailId
};
saveRequestDetail(streamingDetail).catch(err => {
console.error("[RequestDetail] Failed to save streaming request:", err.message);
});
return {
success: true,
response: new Response(transformedBody, {