[Cost Management] [API Management] Azure Cost Management Package just throws first 1000 lines and not managing the paging from the cost management rest api

• Package Name: azure-mgmt-costmanagement
• Package Version: 3.0.0
• Operating System: Windows
• Python Version: 3.9.6

Describe the bug When you call the Usage method in python: https://github.com/Azure/azure-sdk-for-python/blob/main/sdk/costmanagement/azure-mgmt-costmanagement/azure/mgmt/costmanagement/operations/_query_operations.py that is related to this REST api endpoint here https://docs.microsoft.com/es-es/rest/api/cost-management/query/usage the python api is not looping to get next page using the nextLink attribute in the response described here https://docs.microsoft.com/es-es/rest/api/cost-management/query/usage#queryresult so we get a 1000 rows maximum per execution and no way to manage the paging with this library

To Reproduce

from azure.mgmt.costmanagement        import CostManagementClient
from azure.mgmt.costmanagement.models import QueryAggregation,QueryGrouping,QueryDataset,QueryDefinition,QueryTimePeriod,QueryFilter,QueryComparisonExpression
from azure.mgmt.resource              import ResourceManagementClient
from azure.identity                   import DefaultAzureCredential
from IPython.display                  import display, HTML
from typing                           import ContextManager

import json
import pandas as pd
import datetime as dt
import calendar
import numpy as np


thedate = dt.datetime.combine(dt.date.today(), dt.time())
first = thedate.replace(day=1)
last = thedate.replace(day = calendar.monthrange(thedate.year, thedate.month)[1])

credential = DefaultAzureCredential()
subscription_id = 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX'

scope = '/subscriptions/{}'.format(subscription_id)

client = ResourceManagementClient(credential, subscription_id)

cmgmtc = CostManagementClient(credential = credential)

"""
'ResourceGroup','ResourceGroupName','ResourceLocation',
'ConsumedService','ResourceType','ResourceId',
'MeterId','BillingMonth','MeterCategory',
'MeterSubcategory','Meter','AccountName',
'DepartmentName','SubscriptionId','SubscriptionName',
'ServiceName','ServiceTier','EnrollmentAccountName',
'BillingAccountId','ResourceGuid','BillingPeriod',
'InvoiceNumber','ChargeType','PublisherType',
'ReservationId','ReservationName','Frequency',
'PartNumber','CostAllocationRuleName','MarkupRuleName',
'PricingModel','BenefitId','BenefitName',''
"""


query_template = ( 
  QueryDefinition( 
     type      = "ActualCost"
    , timeframe = "ThisMonth" 
   , dataset   = 
     QueryDataset(
        granularity  = "Monthly"
      , aggregation  = { 
        "totalCost": QueryAggregation(name = "Cost", function = "Sum")
        ,"totalCostUSD": QueryAggregation(name = "CostUSD", function = "Sum") 
        }
      , grouping     = [
             QueryGrouping(name = "ResourceGroupName", type = "Dimension")
            ,QueryGrouping(name = "ResourceId"       , type = "Dimension")
            ,QueryGrouping(name = "ResourceType"     , type = "Dimension")
        ]
      , filter =  
        QueryFilter(
          dimensions = 
            QueryComparisonExpression(
                name = "ResourceGroupName"
              , operator = "In"
              , values = ["RESOURCE_GROUP"]
            )
        )
     )
  )
)



replaced_query = (
  query_template.deserialize(
    json.loads(
      json.dumps(
        query_template.serialize()
      ).replace('RESOURCE_GROUP','destination_rg')
    )
  )
)

result = cmgmtc.query.usage( scope = scope, parameters = replaced_query)

data = pd.DataFrame(result.rows, columns = list(map(lambda col: col.name, result.columns)))
 
data_sorted = data.sort_values(by='CostUSD' ,ascending = False)

data_filtered = data_sorted

pd.set_option('display.max_rows', data_filtered.shape[0]+1)

display(HTML(data_filtered.to_html())) 

Expected behavior As a python developer using this package I would expect the result to be an iterable so I can get all result pages not just the first one

Screenshots If applicable, add screenshots to help explain your problem.

Additional context Add any other context about the problem here.

[victorsalesa]

@sgiovetti I was the one notificating that and copying that. It seems that the python api is generated with azurerest tool. I guess that it will be simply changing the swagger definition for the next release to include the iteration capability but no answer yet

[omrodrig]

Sorry for the inconvenience. but we have a backlog item to fix this issue.