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Last active June 6, 2021 11:07
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Get all pages from the pretalx API
#!/usr/bin/env python3
# SPDX-FileCopyrightText: Volker Mische <>
# SPDX-License-Identifier: MIT
# This script is to get all the data from a pretalx endpoint that needs paging.
import argparse
import json
import sys
import urllib.request
parser = argparse.ArgumentParser(
description='Get all the data from a pretalx endpoint.')
parser.add_argument('token', help='token for the API')
parser.add_argument('url', help='pretalx API URL')
args = parser.parse_args()
url = args.url
token = args.token
# `combined` is the final output, it's the combined result of all requests
combined = {
'count': 0,
'next': None,
'previous': None,
'results': []
# Keep going as long as there are more pages to fetch
while (url):
# Print the current URL that will be requested to stderr to see the
# progress. This way you can easily pipe the actual result which is
# printed to the stdout into a file.
print(f'{url}', file=sys.stderr)
req = urllib.request.Request(url, headers={
'Authorization': f'Token {token}'
with urllib.request.urlopen(req) as resp:
# Parse the response so that we combine it easily
data = json.load(resp)
# Add the current result to the combined data
# The `count` is always the total number of items, so we can safely
# override it
combined['count'] = data['count']
# Prepare for the next loop iteration. If there is no more data `next`
# will be `None` and the loop will abort
url = data['next']
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