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Permanently delete a comment from a task. This automatically decrements the task’s amount_of_comments counter.

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Endpoint

DELETE /api/deleteCommentFromTask

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Request Body

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comment_id
number
required
The ID of the comment to delete.
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task_id
number
required
The ID of the task that the comment belongs to. Required to update the comment counter.

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Response

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success
object
Returns the deleted comment object when successful.
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error
string
Returns "Invalid!" if the deletion fails (e.g., comment not found).

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Example Request

curl -X DELETE http://localhost:5173/api/deleteCommentFromTask \
  -H "Content-Type: application/json" \
  -d '{
    "comment_id": 15,
    "task_id": 42
  }'

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Response Example

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Success

Returns the deleted comment object: 
{
  "id": 15,
  "task_id": 42,
  "comment": "Client requested to move the shoot to 2pm",
  "created_at": "2026-03-01T14:30:00.000Z"
}

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Error

"Invalid!"

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Behavior Notes

Deletion is permanent and cannot be undone. The comment is immediately removed from the database.
Deleting a comment decrements the task’s amount_of_comments field by 1.
After successfully deleting a comment, emit a database-change event via Socket.io to notify other clients. See Real-time Updates for details.

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Database Operations

The endpoint performs two Prisma operations:
  1. Delete the comment:
const tasks = await prisma.task_comments.delete({
  where: { id: comment_id }
});
  1. Decrement the comment counter:
await prisma.tasks.update({
  where: { id: task_id },
  data: {
    amount_of_comments: { decrement: 1 }
  }
});

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Common Use Cases

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Remove Outdated Comment

async function removeOutdatedComment(commentId, taskId) {
  const confirmed = confirm('Remove this comment?');
  
  if (confirmed) {
    try {
      const deleted = await deleteComment(commentId, taskId);
      console.log('Comment removed:', deleted.comment);
    } catch (error) {
      alert('Failed to remove comment');
    }
  }
}

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Delete All Comments for a Task

async function deleteAllTaskComments(taskId) {
  // First, fetch all comments for the task
  const comments = await prisma.task_comments.findMany({
    where: { task_id: taskId }
  });
  
  // Delete each comment
  const results = await Promise.allSettled(
    comments.map(c => deleteComment(c.id, taskId))
  );
  
  const successCount = results.filter(r => r.status === 'fulfilled').length;
  console.log(`Deleted ${successCount} comments from task ${taskId}`);
}

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Safe Delete with Validation

async function safeDeleteComment(commentId, taskId) {
  const response = await fetch('/api/deleteCommentFromTask', {
    method: 'DELETE',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({ comment_id: commentId, task_id: taskId })
  });
  
  const result = await response.json();
  
  if (result === 'Invalid!') {
    throw new Error(`Failed to delete comment ${commentId}`);
  }
  
  return result;
}

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Error Handling

Common scenarios that trigger the error response:
  • Comment ID does not exist
  • Task ID does not exist
  • Database connection error
  • Invalid ID format (non-numeric)

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Cascade Deletion

If you delete a task using Delete Task, all associated comments are automatically deleted due to the onDelete: Cascade constraint in the schema. You don’t need to manually delete comments first.
From the Prisma schema: 
model task_comments {
  id         Int      @id @default(autoincrement())
  task       Tasks    @relation(fields: [task_id], references: [id], onDelete: Cascade)
  task_id    Int
  comment    String
  created_at DateTime @default(now())
}

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Why Both IDs Are Required

The endpoint requires both comment_id and task_id because:
  1. comment_id is used to identify and delete the comment
  2. task_id is used to decrement the task’s comment counter
If you only have the comment_id, you can query the comment first to get the task_id: 
const comment = await prisma.task_comments.findUnique({
  where: { id: commentId }
});

if (comment) {
  await deleteComment(commentId, comment.task_id);
}

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Source Reference

Implementation: src/routes/api/(comments)/deleteCommentFromTask/+server.ts:5

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