Quota class

Quota configuration helps to achieve fairness and budgeting in service usage.

The metric based quota configuration works this way: - The service configuration defines a set of metrics. - For API calls, the quota.metric_rules maps methods to metrics with corresponding costs. - The quota.limits defines limits on the metrics, which will be used for quota checks at runtime. An example quota configuration in yaml format: quota: limits: - name: apiWriteQpsPerProject metric: library.googleapis.com/write_calls unit: "1/min/{project}" # rate limit for consumer projects values: STANDARD: 10000 (The metric rules bind all methods to the read_calls metric, except for the UpdateBook and DeleteBook methods. These two methods are mapped to the write_calls metric, with the UpdateBook method consuming at twice rate as the DeleteBook method.) metric_rules: - selector: "*" metric_costs: library.googleapis.com/read_calls: 1 - selector: google.example.library.v1.LibraryService.UpdateBook metric_costs: library.googleapis.com/write_calls: 2 - selector: google.example.library.v1.LibraryService.DeleteBook metric_costs: library.googleapis.com/write_calls: 1 Corresponding Metric definition: metrics: - name: library.googleapis.com/read_calls display_name: Read requests metric_kind: DELTA value_type: INT64 - name: library.googleapis.com/write_calls display_name: Write requests metric_kind: DELTA value_type: INT64

Constructors

Quota({List<QuotaLimit>? limits, List<MetricRule>? metricRules})

Quota.fromJson(Map json_)

Properties

hashCode → int

The hash code for this object.

no setter, inherited

limits ↔ List<QuotaLimit>?

List of QuotaLimit definitions for the service.

getter/setter pair

metricRules ↔ List<MetricRule>?

List of MetricRule definitions, each one mapping a selected method to one or more metrics.

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toJson() → Map<String, dynamic>

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited