toJson method

Map<String, dynamic> toJson()

Converts a ChatMessage to a JSON map representation.

The map contains the following keys:

• 'origin': The origin of the message (user or model).
• 'text': The text content of the message.
• 'attachments': A list of attachments, each represented as a map with:
  • 'type': The type of the attachment ('file' or 'link').
  • 'name': The name of the attachment.
  • 'mimeType': The MIME type of the attachment.
  • 'data': The data of the attachment, either as a base64 encoded string (for files) or a URL (for links).

Implementation

Map<String, dynamic> toJson() => {
  'origin': origin.name,
  'text': text,
  'attachments': [
    for (final attachment in attachments)
      {
        'type': switch (attachment) {
          (FileAttachment _) => 'file',
          (LinkAttachment _) => 'link',
        },
        'name': attachment.name,
        'mimeType': switch (attachment) {
          (final FileAttachment a) => a.mimeType,
          (final LinkAttachment a) => a.mimeType,
        },
        'data': switch (attachment) {
          (final FileAttachment a) => base64Encode(a.bytes),
          (final LinkAttachment a) => a.url,
        },
      },
  ],
};