dify/api/fields/message_fields.py

from fields.conversation_fields import message_file_fields
from flask_restful import fields
from libs.helper import TimestampField

feedback_fields = {
    'rating': fields.String
}

retriever_resource_fields = {
    'id': fields.String,
    'message_id': fields.String,
    'position': fields.Integer,
    'dataset_id': fields.String,
    'dataset_name': fields.String,
    'document_id': fields.String,
    'document_name': fields.String,
    'data_source_type': fields.String,
    'segment_id': fields.String,
    'score': fields.Float,
    'hit_count': fields.Integer,
    'word_count': fields.Integer,
    'segment_position': fields.Integer,
    'index_node_hash': fields.String,
    'content': fields.String,
    'created_at': TimestampField
}

message_fields = {
    'id': fields.String,
    'conversation_id': fields.String,
    'inputs': fields.Raw,
    'query': fields.String,
    'answer': fields.String,
    'message_files': fields.List(fields.Nested(message_file_fields), attribute='files'),
    'feedback': fields.Nested(feedback_fields, attribute='user_feedback', allow_null=True),
    'retriever_resources': fields.List(fields.Nested(retriever_resource_fields)),
    'created_at': TimestampField
}

message_infinite_scroll_pagination_fields = {
    'limit': fields.Integer,
    'has_more': fields.Boolean,
    'data': fields.List(fields.Nested(message_fields))
}