shopify_api_paginate.py

def get_all_inventory_levels():
  get_inventory_levels(page_info: nil) # get first page of results
  
  sleep 0.5 # naive approach to rate limiting
  
  while is_next_page():
    next_page_info = get_next_page_info()
    get_inventory_levels(page_info: next_page_info)
    sleep 0.5 # naive approach to rate limiting


def get_inventory_levels(page_info = nil):
  url = "https://{shop}.myshopify.com/admin/api/2021-07/inventory_levels.json?location_ids=..."
  
  if page_info:
    url += "&page_info=" + page_info # append page_info to query parameters
    
  response = http.get(url) # perform HTTP request
  
  process_response(response) # process response from Shopify API
    

def is_next_page():
  # return true / false based on presence of rel={next} indicator in "Link" response header
 

def get_next_page_info():
  # use regex to extract value of page_info query parameter from rel={next} indicator in "Link" response header