Call the BAG API #AmsterdamCityData

bag_api.py

import pprint
import requests
import json

pc_list = ['1069KJ', '1058NH', '1057PV'] 
# or 4-digit postal codes
pc_list = ['1069', '1058', '1057'] 
num_url = 'https://api.data.amsterdam.nl/bag/nummeraanduiding/'  

# totaal resultaten opvangen in results list..
results = []

for pc_code in pc_list:    
    print('loading %s' % pc_code)    
    params = {'postcode': pc_code, 'detailed' :1}    
    response = requests.get(num_url, params)    
    data = response.json()   
    # LET OP meerdere nummeraanduiding per pc dus ook meerdere buurten    
    # mogelijk. Grenzen lopen niet mooi..    
    result = {'postcode': pc_code}    
    if not data.get('results'):       
        results.append(result)        
        # nothing found.        
        continue        
        
    eerste_hit = data['results'][0]
    
    if not eerste_hit:        
        print('ERROR %s', pc_code)            
        
    def visdata(*args):        
        """        
        Given arguments get data from nested field        
        like item[arg1][agr2][argx].. but without crashing.        
        """        
        nextvalue = eerste_hit        
        for arg in args[:-1]:            
            nextvalue = nextvalue.get(arg, {})                    
                if not nextvalue:                
                    return ''                
                
        return nextvalue.get(args[-1], '')        
    
    # indicate what to extract    
    result['buurt'] = visdata('buurt', '_display')    
    result['sd'] = visdata('gebiedsgerichtwerken', 'naam')    
    result['sd_code'] = visdata('gebiedsgerichtwerken', 'code')    
    result['buurt_combi'] = visdata('buurtcombinatie', 'naam')    
    result['voll_code']= visdata('buurtcombinatie', 'vollcode')    
    
    # voeg postcode resultaat toe aan totaal resultaten lijst.    
    results.append(result)    
    #pprint.pprint(result)