Monorepo for Aesthetic.Computer
aesthetic.computer
1# Moods Bi-Directional Sync - Implementation Complete ✅
2
3**Date:** 2025-10-14
4
5## Summary
6
7Successfully implemented bi-directional sync between MongoDB and ATProto for aesthetic.computer moods, including migration of existing data and cleanup of duplicates.
8
9## What Was Done
10
11### 1. **Dual-Write Implementation** ✅
12- Created `mood-atproto.mjs` helper module with sync functions
13- Updated `mood.mjs` Netlify function to write to both MongoDB and ATProto
14- Added error handling (ATProto failures don't block mood creation)
15- MongoDB updated with `atproto.rkey` after successful ATProto sync
16
17### 2. **Migration & Sync** ✅
18- Created `sync-mongodb-from-atproto.mjs` to sync existing ATProto records back to MongoDB
19- Migrated all 222 @jeffrey moods successfully
20- MongoDB now has `atproto: { rkey }` field for all moods
21- ATProto has `mongoId` field for all moods
22
23### 3. **Duplicate Cleanup** ✅
24- Found and deleted 140 duplicate ATProto records (from interrupted migration)
25- Kept only the records referenced by MongoDB
26- Verified: 222 moods in both systems, no duplicates
27
28## Current State
29
30### MongoDB Schema
31```javascript
32{
33 _id: ObjectId("..."),
34 user: "auth0|...",
35 mood: "text content",
36 when: ISODate("..."),
37 atproto: {
38 rkey: "3m36qcr3bg22g" // 13 bytes reference to ATProto record
39 }
40}
41```
42
43### ATProto Schema (computer.aesthetic.mood)
44```javascript
45{
46 $type: "computer.aesthetic.mood",
47 mood: "text content", // max 5000 chars
48 when: "2025-10-09T...", // ISO 8601
49 mongoId: "68e8064c..." // reference to MongoDB _id
50}
51```
52
53## Files Created/Modified
54
55### New Files
56- `/system/backend/mood-atproto.mjs` - ATProto sync helper functions
57- `/system/backend/sync-mongodb-from-atproto.mjs` - Sync MongoDB from existing ATProto records
58- `/system/backend/delete-atproto-duplicates.mjs` - Clean up duplicate ATProto records
59- `/at/scripts/check-mood-sync.mjs` - Verify MongoDB sync status
60- `/at/scripts/check-atproto-moods.mjs` - Query ATProto PDS for moods
61- `/at/scripts/check-atproto-duplicates.mjs` - Detect duplicate ATProto records
62
63### Modified Files
64- `/system/netlify/functions/mood.mjs` - Added dual-write logic in POST handler
65
66## Migration Results - @jeffrey
67
68| Metric | Count |
69|--------|-------|
70| Total MongoDB moods | 222 |
71| Moods synced to ATProto | 222 |
72| ATProto records (after cleanup) | 222 |
73| Duplicates removed | 140 |
74
75## How It Works
76
77### New Mood Flow
781. User posts mood via API (`POST /api/mood`)
792. Mood inserted into MongoDB → gets `_id`
803. `createMoodOnAtproto()` called with mongoId
814. ATProto record created → returns `rkey`
825. MongoDB updated: `{ atproto: { rkey } }`
836. If ATProto fails: mood still saved in MongoDB, error logged
84
85### Bi-Directional Sync Benefits
86- **Fast lookups both ways**: MongoDB→ATProto and ATProto→MongoDB
87- **Resilience**: Either system can rebuild from the other
88- **Data integrity**: Cross-references validate consistency
89- **Migration safety**: Can verify sync status anytime
90
91## Next Steps
92
93### Immediate
941. Test dual-write with a real mood post via web interface
952. Verify new mood appears on both MongoDB and ATProto
96
97### Before Migrating Other Users
981. Test with 1-2 more users to validate process
992. Update `delete-erase-and-forget-me.mjs` to delete from ATProto
1003. Consider rate limiting (ATProto may have API limits)
101
102### Later
103- [ ] Migrate remaining users' moods
104- [ ] Add ATProto deletion to user account deletion
105- [ ] Monitor dual-write success rate
106- [ ] Consider batch sync job for any failed writes
107
108## Scripts for Ongoing Maintenance
109
110```bash
111# Check sync status for a user
112cd /workspaces/aesthetic-computer/at
113node scripts/check-mood-sync.mjs <handle>
114
115# Check ATProto moods
116node scripts/check-atproto-moods.mjs <handle>
117
118# Check for duplicates
119node scripts/check-atproto-duplicates.mjs <handle>
120
121# Sync MongoDB from ATProto (if needed)
122cd /workspaces/aesthetic-computer/system
123node backend/sync-mongodb-from-atproto.mjs <handle>
124
125# Clean up duplicates
126node backend/delete-atproto-duplicates.mjs <handle> --delete
127```
128
129## Technical Notes
130
131### Why Minimal Nested Approach?
132- Only stores `atproto.rkey` in MongoDB (13 bytes)
133- Alternative (full ATProto URI, DID, etc.) would be 170+ bytes
134- Keeps MongoDB documents lean
135- Can reconstruct full URI: `at://${did}/computer.aesthetic.mood/${rkey}`
136
137### Error Handling Strategy
138- ATProto failures don't block MongoDB writes
139- Ensures service availability even if ATProto is down
140- Can backfill ATProto records later from MongoDB
141- Logs errors for monitoring
142
143### Script Exit Issues Fixed
144- Added `process.exit(0)` to all scripts
145- Previously hung due to open database connections
146- Scripts now exit cleanly after completing
147
148## Testing Checklist
149
150- [x] MongoDB has all moods with `atproto.rkey`
151- [x] ATProto has all moods with `mongoId`
152- [x] No duplicate ATProto records
153- [x] Scripts exit cleanly
154- [ ] New mood via web interface creates both records
155- [ ] ATProto failure doesn't break mood posting
156- [ ] Second user migration works correctly
157
158---
159
160**Status:** ✅ Core implementation complete, ready for production testing