parseMessages function

List<MessageModel>? parseMessages(dynamic data)

Parses a dynamic data object into a list of MessageModel instances.

The function checks if data is a list or a single message and converts it into a list of MessageModel objects accordingly.

If data is null, the function returns null. If data is a list, it returns a list of MessageModel instances created from the list elements. If data is a single item, it wraps it in a list of a single MessageModel.

Example:

List<MessageModel>? messages = parseMessages(responseData);

Implementation

List<MessageModel>? parseMessages(dynamic data) {
  // If data is null, return null.
  if (data == null) return null;

  // If data is a List, map each item to a MessageModel and return the resulting list.
  if (data is List) {
    return data.map((e) => MessageModel.fromJson(e)).toList();
  } else {
    // If data is not a List, assume it's a single message, wrap it in a list, and return it.
    return [MessageModel.fromJson(data)];
  }
}