feat(projected-usage): Create a new endpoint for the projected usage calculation #4124
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…hql query for the frontend to use
app/serializers/v1/customers/projected_charge_usage_serializer.rb
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app/serializers/v1/customers/projected_charge_usage_serializer.rb
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app/serializers/v1/customers/projected_charge_usage_serializer.rb
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…s, lookups and service calls
julienbourdeau
approved these changes
Aug 11, 2025
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Context
The
current_usageendpoint is frequently called across the application. Adding the projected usage calculation was causing significant memory spikes due to the high request volume, impacting application performance.By moving the expensive calculation to a dedicated endpoint, we ensure that fetching basic usage remains fast and stable, while still providing the projection data when it's explicitly needed. This resolves the memory issues and improves overall stability.
Description
Creates a new endpoint,
GET /customers/:external_customer_id/projected_usage, to handle the computationally intensive projected usage calculation.Reverts the existing
/customers/:external_customer_id/current_usageendpoint to its original, lightweight state by removing the projection logic.