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187 lines
7.2 KiB
187 lines
7.2 KiB
// Copyright 2019 Google LLC.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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syntax = "proto3";
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package google.api;
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option go_package = "google.golang.org/genproto/googleapis/api/serviceconfig;serviceconfig";
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option java_multiple_files = true;
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option java_outer_classname = "QuotaProto";
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option java_package = "com.google.api";
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option objc_class_prefix = "GAPI";
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// Quota configuration helps to achieve fairness and budgeting in service
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// usage.
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//
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// The metric based quota configuration works this way:
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// - The service configuration defines a set of metrics.
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// - For API calls, the quota.metric_rules maps methods to metrics with
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// corresponding costs.
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// - The quota.limits defines limits on the metrics, which will be used for
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// quota checks at runtime.
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//
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// An example quota configuration in yaml format:
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//
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// quota:
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// limits:
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//
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// - name: apiWriteQpsPerProject
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// metric: library.googleapis.com/write_calls
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// unit: "1/min/{project}" # rate limit for consumer projects
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// values:
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// STANDARD: 10000
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//
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//
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// # The metric rules bind all methods to the read_calls metric,
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// # except for the UpdateBook and DeleteBook methods. These two methods
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// # are mapped to the write_calls metric, with the UpdateBook method
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// # consuming at twice rate as the DeleteBook method.
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// metric_rules:
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// - selector: "*"
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// metric_costs:
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// library.googleapis.com/read_calls: 1
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// - selector: google.example.library.v1.LibraryService.UpdateBook
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// metric_costs:
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// library.googleapis.com/write_calls: 2
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// - selector: google.example.library.v1.LibraryService.DeleteBook
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// metric_costs:
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// library.googleapis.com/write_calls: 1
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//
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// Corresponding Metric definition:
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//
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// metrics:
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// - name: library.googleapis.com/read_calls
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// display_name: Read requests
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// metric_kind: DELTA
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// value_type: INT64
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//
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// - name: library.googleapis.com/write_calls
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// display_name: Write requests
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// metric_kind: DELTA
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// value_type: INT64
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//
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//
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message Quota {
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// List of `QuotaLimit` definitions for the service.
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repeated QuotaLimit limits = 3;
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// List of `MetricRule` definitions, each one mapping a selected method to one
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// or more metrics.
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repeated MetricRule metric_rules = 4;
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}
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// Bind API methods to metrics. Binding a method to a metric causes that
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// metric's configured quota behaviors to apply to the method call.
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message MetricRule {
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// Selects the methods to which this rule applies.
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//
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// Refer to [selector][google.api.DocumentationRule.selector] for syntax details.
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string selector = 1;
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// Metrics to update when the selected methods are called, and the associated
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// cost applied to each metric.
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//
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// The key of the map is the metric name, and the values are the amount
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// increased for the metric against which the quota limits are defined.
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// The value must not be negative.
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map<string, int64> metric_costs = 2;
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}
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// `QuotaLimit` defines a specific limit that applies over a specified duration
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// for a limit type. There can be at most one limit for a duration and limit
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// type combination defined within a `QuotaGroup`.
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message QuotaLimit {
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// Name of the quota limit.
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//
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// The name must be provided, and it must be unique within the service. The
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// name can only include alphanumeric characters as well as '-'.
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//
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// The maximum length of the limit name is 64 characters.
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string name = 6;
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// Optional. User-visible, extended description for this quota limit.
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// Should be used only when more context is needed to understand this limit
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// than provided by the limit's display name (see: `display_name`).
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string description = 2;
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// Default number of tokens that can be consumed during the specified
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// duration. This is the number of tokens assigned when a client
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// application developer activates the service for his/her project.
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//
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// Specifying a value of 0 will block all requests. This can be used if you
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// are provisioning quota to selected consumers and blocking others.
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// Similarly, a value of -1 will indicate an unlimited quota. No other
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// negative values are allowed.
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//
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// Used by group-based quotas only.
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int64 default_limit = 3;
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// Maximum number of tokens that can be consumed during the specified
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// duration. Client application developers can override the default limit up
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// to this maximum. If specified, this value cannot be set to a value less
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// than the default limit. If not specified, it is set to the default limit.
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//
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// To allow clients to apply overrides with no upper bound, set this to -1,
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// indicating unlimited maximum quota.
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//
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// Used by group-based quotas only.
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int64 max_limit = 4;
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// Free tier value displayed in the Developers Console for this limit.
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// The free tier is the number of tokens that will be subtracted from the
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// billed amount when billing is enabled.
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// This field can only be set on a limit with duration "1d", in a billable
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// group; it is invalid on any other limit. If this field is not set, it
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// defaults to 0, indicating that there is no free tier for this service.
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//
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// Used by group-based quotas only.
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int64 free_tier = 7;
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// Duration of this limit in textual notation. Example: "100s", "24h", "1d".
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// For duration longer than a day, only multiple of days is supported. We
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// support only "100s" and "1d" for now. Additional support will be added in
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// the future. "0" indicates indefinite duration.
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//
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// Used by group-based quotas only.
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string duration = 5;
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// The name of the metric this quota limit applies to. The quota limits with
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// the same metric will be checked together during runtime. The metric must be
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// defined within the service config.
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string metric = 8;
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// Specify the unit of the quota limit. It uses the same syntax as
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// [Metric.unit][]. The supported unit kinds are determined by the quota
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// backend system.
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//
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// Here are some examples:
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// * "1/min/{project}" for quota per minute per project.
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//
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// Note: the order of unit components is insignificant.
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// The "1" at the beginning is required to follow the metric unit syntax.
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string unit = 9;
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// Tiered limit values. You must specify this as a key:value pair, with an
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// integer value that is the maximum number of requests allowed for the
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// specified unit. Currently only STANDARD is supported.
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map<string, int64> values = 10;
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// User-visible display name for this limit.
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// Optional. If not set, the UI will provide a default display name based on
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// the quota configuration. This field can be used to override the default
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// display name generated from the configuration.
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string display_name = 12;
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}
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