Delete Conversation

Delete a specified user’s conversation record

POST /conversations/delete

cURL

curl -X POST "http://localhost:5001/conversations/delete" \
  -H "Content-Type: application/json" \
  -d '{
    "uid": "user123",
    "channel_id": "group123",
    "channel_type": 2
  }'

Success Response

{
  "status": "success"
}

Overview

Delete a specified user’s conversation record, clearing conversation history and status.

Request Body

Required Parameters

uid · string · required

User ID

channel_id · string · required

Channel ID

channel_type · integer · required

Channel type (1=personal channel, 2=group channel)

cURL

curl -X POST "http://localhost:5001/conversations/delete" \
  -H "Content-Type: application/json" \
  -d '{
    "uid": "user123",
    "channel_id": "group123",
    "channel_type": 2
  }'

Success Response

{
  "status": "success"
}

Response Fields

status · string · required

Operation status, returns "success" on success

Status Codes

Status Code	Description
200	Conversation deleted successfully
400	Request parameter error
403	No deletion permission
500	Internal server error

Deletion Impact

What Gets Deleted

When a conversation is deleted, the following data is removed:

Data Type	Scope	Impact
Conversation Record	User’s conversation list entry	Conversation disappears from chat list
Unread Count	User’s unread message count	Unread badge removed
Last Message Info	Last message and timestamp	No preview in conversation list
User Preferences	Conversation-specific settings	Notification settings reset

What Remains Unchanged

• Channel Messages: Actual messages in the channel remain intact
• Other Users: Other users’ conversations with the same channel are unaffected
• Channel Membership: User remains a member of the channel
• Message History: User can still access messages by rejoining the conversation

Use Cases

Chat List Management

Remove Conversation from Chat List:

// Remove conversation from user's chat list
async function removeFromChatList(userId, channelId, channelType) {
    try {
        await deleteConversation({
            uid: userId,
            channel_id: channelId,
            channel_type: channelType
        });
        
        // Update UI to remove conversation
        removeConversationFromUI(channelId);
        
        console.log('Conversation removed from chat list');
    } catch (error) {
        console.error('Failed to remove conversation:', error);
    }
}

Clean Up Old Conversations:

// Clean up conversations older than specified days
async function cleanupOldConversations(userId, daysOld = 30) {
    try {
        // Get user's conversations
        const conversations = await getUserConversations(userId);
        
        const cutoffTime = Date.now() - (daysOld * 24 * 60 * 60 * 1000);
        const oldConversations = conversations.filter(conv => 
            conv.timestamp < cutoffTime && conv.unread === 0
        );
        
        // Delete old conversations
        for (const conv of oldConversations) {
            await deleteConversation({
                uid: userId,
                channel_id: conv.channel_id,
                channel_type: conv.channel_type
            });
        }
        
        console.log(`Cleaned up ${oldConversations.length} old conversations`);
    } catch (error) {
        console.error('Failed to cleanup old conversations:', error);
    }
}

Privacy and Data Management

User Privacy Control:

// Allow users to remove conversations for privacy
async function removeConversationForPrivacy(userId, channelId, channelType) {
    try {
        // Confirm with user
        const confirmed = await confirmDeletion(
            'Remove this conversation from your chat list? You can still access messages by searching.'
        );
        
        if (confirmed) {
            await deleteConversation({
                uid: userId,
                channel_id: channelId,
                channel_type: channelType
            });
            
            // Log privacy action
            await logPrivacyAction(userId, 'conversation_removed', {
                channel_id: channelId,
                channel_type: channelType
            });
            
            showNotification('Conversation removed from your chat list');
        }
    } catch (error) {
        console.error('Failed to remove conversation for privacy:', error);
    }
}

Batch Operations

Batch Delete Conversations:

// Delete multiple conversations
async function batchDeleteConversations(userId, conversationsToDelete) {
    const results = [];
    
    for (const conv of conversationsToDelete) {
        try {
            await deleteConversation({
                uid: userId,
                channel_id: conv.channel_id,
                channel_type: conv.channel_type
            });
            
            results.push({
                channel_id: conv.channel_id,
                success: true
            });
        } catch (error) {
            results.push({
                channel_id: conv.channel_id,
                success: false,
                error: error.message
            });
        }
    }
    
    // Update UI for successful deletions
    const successful = results.filter(r => r.success);
    successful.forEach(result => {
        removeConversationFromUI(result.channel_id);
    });
    
    return results;
}

Archive and Restore

Archive Conversation (Soft Delete):

// Implement archive functionality using conversation deletion
class ConversationArchive {
    constructor(userId) {
        this.userId = userId;
        this.archivedKey = `archived_conversations_${userId}`;
    }
    
    async archiveConversation(channelId, channelType) {
        try {
            // Get conversation data before deletion
            const conversationData = await getConversationData(
                this.userId, channelId, channelType
            );
            
            // Store in local archive
            await this.storeInArchive(conversationData);
            
            // Delete from active conversations
            await deleteConversation({
                uid: this.userId,
                channel_id: channelId,
                channel_type: channelType
            });
            
            console.log('Conversation archived successfully');
        } catch (error) {
            console.error('Failed to archive conversation:', error);
        }
    }
    
    async storeInArchive(conversationData) {
        const archived = this.getArchivedConversations();
        archived.push({
            ...conversationData,
            archived_at: Date.now()
        });
        
        localStorage.setItem(this.archivedKey, JSON.stringify(archived));
    }
    
    getArchivedConversations() {
        const stored = localStorage.getItem(this.archivedKey);
        return stored ? JSON.parse(stored) : [];
    }
    
    async restoreConversation(channelId, channelType) {
        // Note: Restoration requires rejoining the conversation
        // The conversation will reappear when new messages arrive
        const archived = this.getArchivedConversations();
        const filtered = archived.filter(conv => 
            !(conv.channel_id === channelId && conv.channel_type === channelType)
        );
        
        localStorage.setItem(this.archivedKey, JSON.stringify(filtered));
        console.log('Conversation restored from archive');
    }
}

// Usage
const archive = new ConversationArchive('user123');
await archive.archiveConversation('group123', 2);

Administrative Operations

Admin Conversation Management:

// Administrative function to clean up user conversations
async function adminCleanupUserConversations(adminUserId, targetUserId, criteria) {
    try {
        // Verify admin permissions
        const hasPermission = await verifyAdminPermission(adminUserId, 'conversation_management');
        if (!hasPermission) {
            throw new Error('Insufficient admin permissions');
        }
        
        // Get target user's conversations
        const conversations = await getUserConversations(targetUserId);
        
        // Filter based on criteria
        const toDelete = conversations.filter(conv => {
            if (criteria.inactive_days && conv.last_activity) {
                const daysSinceActivity = (Date.now() - conv.last_activity) / (1000 * 60 * 60 * 24);
                return daysSinceActivity > criteria.inactive_days;
            }
            if (criteria.channel_types) {
                return criteria.channel_types.includes(conv.channel_type);
            }
            return false;
        });
        
        // Delete conversations
        const results = await batchDeleteConversations(targetUserId, toDelete);
        
        // Log admin action
        await logAdminAction(adminUserId, 'conversation_cleanup', {
            target_user: targetUserId,
            deleted_count: results.filter(r => r.success).length,
            criteria: criteria
        });
        
        return results;
    } catch (error) {
        console.error('Admin conversation cleanup failed:', error);
        throw error;
    }
}

Important Notes

Data Recovery: Once a conversation is deleted, it cannot be automatically restored. The conversation will only reappear if:

• New messages are sent to the channel
• The user manually rejoins the conversation
• The conversation is recreated through other means

Message Preservation: Deleting a conversation does not delete the actual messages in the channel. Other users can still see all messages, and the user can still access message history through other means.

Best Practices

1. User Confirmation: Always confirm with users before deleting conversations
2. Soft Delete Option: Consider implementing archive functionality instead of permanent deletion
3. Batch Operations: Use batch operations for better performance when deleting multiple conversations
4. Error Handling: Handle deletion errors gracefully without breaking the UI
5. Logging: Log conversation deletions for audit and support purposes
6. UI Updates: Immediately update the UI to reflect conversation removal
7. Data Backup: Consider backing up conversation metadata before deletion