API Quotas with Header Filters

API Quotas with Header Filters enable precise control over API usage by setting limits based on request headers, rather than just URLs. This allows for more flexible quota management, such as distinguishing between environments or customer tiers, ensuring resources are allocated efficiently and tailored to specific needs.

Group Configuration: Production vs. Staging

This configuration defines two user groups, production and staging, with different quota limits. The production group receives a higher quota than the staging group to reflect the greater resource needs of production environments.

/etc/lunar-proxy/quotas/{fileName}.yaml

quota:
  id: LimiterMonth
  filter:
    url: api.website.com/*
  strategy:
    fixed_window:
      max: 10000000
      interval: 1
      interval_unit: month
      monthly_renewal:
        day: 1
        hour: 11
        minute: 0
        second: 0
        timezone: UTC

internal_limits:
  - id: ProductionQuota
    parent_id: LimiterMonth
    filter:
      headers:
        - key: x-lunar-consumer-tag
          value: production
    strategy:
      fixed_window:
        max: 10000
        interval: 1
        interval_unit: day

  - id: StagingQuota
    parent_id: LimiterMonth
    filter:
      headers:
        - key: x-lunar-consumer-tag
          value: staging
    strategy:
      fixed_window:
        max: 2000
        interval: 1
        interval_unit: day