Box Developer Documentation

Create Comment

Create Comment

To create a comment, call the POST /comments API with the message of the comment, as well as the ID of the file to leave the comment on.

cURL
curl -i -X POST "https://api.box.com/2.0/comments" \
     -H "authorization: Bearer <ACCESS_TOKEN>" \
     -H "content-type: application/json" \
     -d '{
       "message": "Review completed!",
       "item": {
         "type": "file",
         "id": 426436
       }
     }'
Node/TypeScript v10
await client.comments.createComment({
  message: message,
  item: {
    id: fileId,
    type: 'file' as CreateCommentRequestBodyItemTypeField,
  } satisfies CreateCommentRequestBodyItemField,
} satisfies CreateCommentRequestBody);
Python v10
client.comments.create_comment(
    message, CreateCommentItem(id=file_id, type=CreateCommentItemTypeField.FILE)
)
.NET v10
await client.Comments.CreateCommentAsync(requestBody: new CreateCommentRequestBody(message: message, item: new CreateCommentRequestBodyItemField(id: fileId, type: CreateCommentRequestBodyItemTypeField.File)));
Swift v10
try await client.comments.createComment(requestBody: CreateCommentRequestBody(message: message, item: CreateCommentRequestBodyItemField(id: fileId, type: CreateCommentRequestBodyItemTypeField.file)))
Java v10
client.getComments().createComment(new CreateCommentRequestBody(message, new CreateCommentRequestBodyItemField(fileId, CreateCommentRequestBodyItemTypeField.FILE)))
Java v4
BoxFile file = new BoxFile(api, "id");
file.addComment("This file is pretty cool.");
Python v3
comment = client.file(file_id='11111').add_comment('When should I have this done by?')
.NET v5
var requestParams = new BoxCommentRequest()
{
    Item = new BoxRequestEntity()
    {
        Type = BoxType.File,
        Id = "12345"
    },
    Message = "Great work!"
};
BoxComment comment = await client.CommentsManager.AddCommentAsync(requestParams);
Node v3
client.comments.create('33333', 'Is this the latest version?')
    .then(comment => {
        /* comment -> {
            type: 'comment',
            id: '11111',
            is_reply_comment: false,
            message: 'Is this the latest version?',
            created_by: 
            { type: 'user',
                id: '22222',
                name: 'Example User',
                login: 'user@example.com' },
            created_at: '2012-12-12T11:25:01-08:00',
            item: { id: '33333', type: 'file' },
            modified_at: '2012-12-12T11:25:01-08:00' }
        */
    });

A comment's message can also mentions users using the @ sign. To do so, add the string @[userid:name] anywhere within the message. The user_id is the target user's ID, where the name can be any custom phrase. In the Box UI this name will link to the user's profile.

Then, pass this string as the tagged_message instead of the message.