125 lines
4.0 KiB
Markdown
125 lines
4.0 KiB
Markdown
# Chart Updates Fix - JavaScript Errors Resolved
|
|
|
|
## Issues Fixed
|
|
|
|
### 1. JavaScript Syntax Error ✅
|
|
**Error**: `Uncaught SyntaxError: Unexpected token '{' (at chart_manager.js:4399:39)`
|
|
**Cause**: Debug methods were added outside the ChartManager class
|
|
|
|
**Fix**: Moved debug methods inside the class before the closing brace
|
|
```javascript
|
|
class ChartManager {
|
|
// ... existing methods
|
|
|
|
// Debug methods moved inside class
|
|
debugRecalculatePivots(timeframe) { ... }
|
|
debugPivotStatus() { ... }
|
|
} // ← Proper class closing
|
|
```
|
|
|
|
### 2. Plotly extendTraces Marker Error ✅
|
|
**Error**: `attribute marker must be an array of length equal to indices array length`
|
|
**Cause**: Incorrect marker.color format in volume trace extension
|
|
|
|
**Before (Broken):**
|
|
```javascript
|
|
Plotly.extendTraces(plotId, {
|
|
x: [[formattedTimestamp]],
|
|
y: [[candle.volume]],
|
|
marker: { color: [[volumeColor]] } // ❌ Wrong format
|
|
}, [1]);
|
|
```
|
|
|
|
**After (Fixed):**
|
|
```javascript
|
|
Plotly.extendTraces(plotId, {
|
|
x: [[formattedTimestamp]],
|
|
y: [[candle.volume]]
|
|
// ✅ No marker in extendTraces
|
|
}, [1]).then(() => {
|
|
// ✅ Update color separately with restyle
|
|
const currentTrace = plotElement.data[1];
|
|
if (currentTrace && currentTrace.marker && currentTrace.marker.color) {
|
|
const newColors = [...currentTrace.marker.color, volumeColor];
|
|
Plotly.restyle(plotId, {'marker.color': [newColors]}, [1]);
|
|
}
|
|
});
|
|
```
|
|
|
|
### 3. Empty Annotations File ✅
|
|
**Error**: `Expecting value: line 1 column 1 (char 0)`
|
|
**Cause**: Empty annotations JSON file
|
|
|
|
**Fix**: Created proper empty JSON array structure
|
|
```json
|
|
[]
|
|
```
|
|
|
|
## Root Cause Analysis
|
|
|
|
### Plotly extendTraces Limitation
|
|
The issue was that `Plotly.extendTraces()` has specific requirements for marker arrays:
|
|
- When extending traces, marker properties must match the exact structure
|
|
- For volume bars, the marker.color array must have the same length as the data being added
|
|
- The `[[volumeColor]]` format was incorrect for this use case
|
|
|
|
### Solution Approach
|
|
Instead of trying to extend traces with marker colors, the fix:
|
|
1. **Extends traces without marker data** - Adds new data points cleanly
|
|
2. **Updates colors separately** - Uses `Plotly.restyle()` to update the entire color array
|
|
3. **Maintains color consistency** - Preserves existing colors and adds new ones
|
|
|
|
## Expected Results
|
|
|
|
### Live Chart Updates Should Now:
|
|
- ✅ **Add new candles** without JavaScript errors
|
|
- ✅ **Update volume colors** correctly (green for up, red for down)
|
|
- ✅ **Maintain chart performance** with proper Plotly API usage
|
|
- ✅ **Show live data** from the unified WebSocket → DataProvider pipeline
|
|
|
|
### Console Should Show:
|
|
```
|
|
[1m] Successfully added new candle. Total candles: 152
|
|
[1m] Volume trace extended successfully
|
|
✅ Chart update fix working correctly!
|
|
```
|
|
|
|
Instead of:
|
|
```
|
|
❌ Error adding new candle: attribute marker must be an array...
|
|
```
|
|
|
|
## Files Modified
|
|
|
|
### JavaScript:
|
|
- `ANNOTATE/web/static/js/chart_manager.js` - Fixed extendTraces marker issue and syntax error
|
|
|
|
### Data:
|
|
- `ANNOTATE/data/annotations/annotations_db.json` - Created proper empty JSON structure
|
|
|
|
### Test:
|
|
- `test_chart_updates.html` - Test file to verify the fix works
|
|
|
|
## Testing
|
|
|
|
The fix can be verified by:
|
|
1. **Opening ANNOTATE dashboard** - Should load without JavaScript errors
|
|
2. **Watching live updates** - Charts should update smoothly with new candles
|
|
3. **Checking console** - No more Plotly marker errors
|
|
4. **Volume colors** - Should show green/red based on price direction
|
|
|
|
## Technical Details
|
|
|
|
### Plotly API Correct Usage:
|
|
- **extendTraces()** - For adding new data points to existing traces
|
|
- **restyle()** - For updating trace properties like colors, styles
|
|
- **relayout()** - For updating layout properties like axes, titles
|
|
|
|
### Volume Color Logic:
|
|
```javascript
|
|
const volumeColor = candle.close >= candle.open ? '#10b981' : '#ef4444';
|
|
// Green for bullish candles (close >= open)
|
|
// Red for bearish candles (close < open)
|
|
```
|
|
|
|
The chart updates should now work smoothly with live data! 🎯 |