Get_embed_multiple_reports

Does anyone know why I get the following error when doing power bi embedded?

I insert the code of embedded multiple.

pbiembedservice.py

def get_embed_params_for_multiple_reports(self, workspace_id, report_ids, additional_dataset_ids=None):
        '''Get embed params for multiple reports for a single workspace

        Args:
            workspace_id (str): Workspace Id
            report_ids (list): Report Ids
            additional_dataset_ids (list, optional): Dataset Ids which are different than the ones bound to the reports. Defaults to None.

        Returns:
            EmbedConfig: Embed token and Embed URLs
        '''

        # Note: This method is an example and is not consumed in this sample app

        dataset_ids = []

        # To store multiple report info
        reports = []

        for report_id in report_ids:
            report_url = f'https://api.powerbi.com/v1.0/myorg/groups/{workspace_id}/reports/{report_id}'
            api_response = requests.get(report_url, headers=self.get_request_header())

            if api_response.status_code != 200:
                abort(api_response.status_code, description=f'Error while retrieving Embed URL\n{api_response.reason}:\t{api_response.text}\nRequestId:\t{api_response.headers.get("RequestId")}')

            api_response = json.loads(api_response.text)
            report_config = ReportConfig(api_response['id'], api_response['name'], api_response['embedUrl'])
            reports.append(report_config.__dict__)
            dataset_ids.append(api_response['datasetId'])

        # Append additional dataset to the list to achieve dynamic binding later
        if additional_dataset_ids is not None:
            dataset_ids.extend(additional_dataset_ids)

        embed_token = self.get_embed_token_for_multiple_reports_single_workspace(report_ids, dataset_ids, workspace_id)
        embed_config = EmbedConfig(embed_token.tokenId, embed_token.token, embed_token.tokenExpiry, reports)
        return json.dumps(embed_config.__dict__)

with the embedded single report code it works fine.

def get_embed_params_for_single_report(self, workspace_id, report_id, additional_dataset_id=None):
        '''Get embed params for a report and a workspace

        Args:
            workspace_id (str): Workspace Id
            report_id (str): Report Id
            additional_dataset_id (str, optional): Dataset Id different than the one bound to the report. Defaults to None.

        Returns:
            EmbedConfig: Embed token and Embed URL
        '''

        report_url = f'https://api.powerbi.com/v1.0/myorg/groups/{workspace_id}/reports/{report_id}'       
        api_response = requests.get(report_url, headers=self.get_request_header())

        if api_response.status_code != 200:
            abort(api_response.status_code, description=f'Error while retrieving Embed URL\n{api_response.reason}:\t{api_response.text}\nRequestId:\t{api_response.headers.get("RequestId")}')

        api_response = json.loads(api_response.text)
        report = ReportConfig(api_response['id'], api_response['name'], api_response['embedUrl'])
        dataset_ids = [api_response['datasetId']]

        # Append additional dataset to the list to achieve dynamic binding later
        if additional_dataset_id is not None:
            dataset_ids.append(additional_dataset_id)

        embed_token = self.get_embed_token_for_single_report_single_workspace(report_id, dataset_ids, workspace_id)
        embed_config = EmbedConfig(embed_token.tokenId, embed_token.token, embed_token.tokenExpiry, [report.__dict__])
        return json.dumps(embed_config.__dict__)

app.py

# Copyright (c) Microsoft Corporation.
# Licensed under the MIT license.

from services.pbiembedservice import PbiEmbedService
from utils import Utils
from flask import Flask, render_template, send_from_directory
import json
import os

# Initialize the Flask app
app = Flask(__name__)

# Load configuration
app.config.from_object('config.BaseConfig')

@app.route('/')
def index():
    '''Returns a static HTML page'''

    return render_template('index.html')

@app.route('/getembedinfo', methods=['GET'])
def get_embed_info():
    '''Returns report embed configuration'''

    config_result = Utils.check_config(app)
    if config_result is not None:
        return json.dumps({'errorMsg': config_result}), 500

    try:
        embed_info = PbiEmbedService().get_embed_params_for_multiple_reports(app.config['WORKSPACE_ID'], ["d12aa9d3-5674-4acf-8c14-17ac454r9824","1f4c3e4e-da6a-4199-bd5f-2194456be195"])
        return embed_info
    except Exception as ex:
        return json.dumps({'errorMsg': str(ex)}), 500

@app.route('/favicon.ico', methods=['GET'])
def getfavicon():
    '''Returns path of the favicon to be rendered'''

    return send_from_directory(os.path.join(app.root_path, 'static'), 'img/favicon.ico', mimetype='image/vnd.microsoft.icon')

if __name__ == '__main__':
    app.run()

Error

thank you