from flask import Flask, jsonify, json

app = Flask(__name__)


with open('C:/Users/Documents/data.json', encoding="latin-1") as f:
    alldata = json.loads(f.read())

@app.route('/api/PDL/<string:dataset_accessLevel>', methods=['GET'])
def get_task(dataset_accessLevel):
    dataset = alldata['dataset']
    # Gets the list of data objects from top level object
    # data is a single object in that list, which should have an identifier key
    # data_for_id is the list of objects passing the filter
    data_for_id = [data for data in dataset if data['accessLevel'] == dataset_accessLevel]
    if len(data_for_id) == 0:
        raise CustomException('this is my custom message')
    return jsonify({'dataset': data_for_id})

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