unleash-server
Version:
Unleash is an enterprise ready feature flag service. It provides different strategies for handling feature flags.
165 lines • 7.02 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const util_1 = require("../../../util");
const internals_1 = require("../../../internals");
const metrics_helper_1 = __importDefault(require("../../../util/metrics-helper"));
const feature_toggle_store_1 = __importDefault(require("../../feature-toggle/feature-toggle-store"));
const sortStrategies_1 = require("../../../util/sortStrategies");
class ClientFeatureToggleDeltaReadModel {
constructor(db, eventBus) {
this.db = db;
this.timer = (action) => metrics_helper_1.default.wrapTimer(eventBus, internals_1.DB_TIME, {
store: 'client-feature-toggle-delta-read-model',
action,
});
}
async getAll(featureQuery) {
const environment = featureQuery.environment;
const stopTimer = this.timer(`getAll`);
const selectColumns = [
'features.name as name',
'features.description as description',
'features.type as type',
'features.project as project',
'features.stale as stale',
'features.impression_data as impression_data',
'features.created_at as created_at',
'fe.variants as variants',
'fe.enabled as enabled',
'fe.environment as environment',
'fs.id as strategy_id',
'fs.strategy_name as strategy_name',
'fs.title as strategy_title',
'fs.disabled as strategy_disabled',
'fs.parameters as parameters',
'fs.constraints as constraints',
'fs.sort_order as sort_order',
'fs.milestone_id as milestone_id',
'fs.variants as strategy_variants',
'segments.id as segment_id',
'segments.constraints as segment_constraints',
'df.parent as parent',
'df.variants as parent_variants',
'df.enabled as parent_enabled',
];
let query = this.db('features')
.modify(feature_toggle_store_1.default.filterByArchived, false)
.leftJoin(this.db('feature_strategies')
.select('*')
.where({ environment })
.as('fs'), 'fs.feature_name', 'features.name')
.leftJoin(this.db('feature_environments')
.select('feature_name', 'enabled', 'environment', 'variants')
.where({ environment })
.as('fe'), 'fe.feature_name', 'features.name')
.leftJoin('feature_strategy_segment as fss', `fss.feature_strategy_id`, `fs.id`)
.leftJoin('segments', `segments.id`, `fss.segment_id`)
.leftJoin('dependent_features as df', 'df.child', 'features.name');
if (featureQuery?.toggleNames && featureQuery?.toggleNames.length > 0) {
query = query.whereIn('features.name', featureQuery.toggleNames);
}
query = query.select(selectColumns);
if (featureQuery) {
if (featureQuery.tag) {
const tagQuery = this.db
.from('feature_tag')
.select('feature_name')
.whereIn(['tag_type', 'tag_value'], featureQuery.tag);
query = query.whereIn('features.name', tagQuery);
}
if (featureQuery.project &&
!featureQuery.project.includes(util_1.ALL_PROJECTS)) {
query = query.whereIn('project', featureQuery.project);
}
if (featureQuery.namePrefix) {
query = query.where('features.name', 'like', `${featureQuery.namePrefix}%`);
}
}
const rows = await query;
stopTimer();
const featureToggles = rows.reduce((acc, r) => {
const feature = acc[r.name] ?? {
strategies: [],
};
if (this.isUnseenStrategyRow(feature, r) && !r.strategy_disabled) {
feature.strategies?.push(this.rowToStrategy(r));
}
if (featureQuery?.inlineSegmentConstraints && r.segment_id) {
this.addSegmentToStrategy(feature, r);
}
else if (!featureQuery?.inlineSegmentConstraints &&
r.segment_id) {
this.addSegmentIdsToStrategy(feature, r);
}
if (r.parent) {
feature.dependencies = feature.dependencies || [];
feature.dependencies.push({
feature: r.parent,
enabled: r.parent_enabled,
...(r.parent_enabled
? { variants: r.parent_variants }
: {}),
});
}
feature.impressionData = r.impression_data;
feature.enabled = !!r.enabled;
feature.name = r.name;
feature.description = r.description;
feature.project = r.project;
feature.stale = r.stale;
feature.type = r.type;
feature.variants = r.variants || [];
feature.project = r.project;
acc[r.name] = feature;
return acc;
}, {});
const features = Object.values(featureToggles);
// strip away unwanted properties
const cleanedFeatures = features.map(({ strategies, ...rest }) => ({
...rest,
strategies: strategies
?.sort(sortStrategies_1.sortStrategies)
.map(({ id, title, sortOrder, milestoneId, ...strategy }) => ({
...strategy,
})),
}));
return cleanedFeatures;
}
addSegmentIdsToStrategy(feature, row) {
const strategy = feature.strategies?.find((s) => s?.id === row.strategy_id);
if (!strategy) {
return;
}
if (!strategy.segments) {
strategy.segments = [];
}
strategy.segments.push(row.segment_id);
}
rowToStrategy(row) {
const strategy = {
id: row.strategy_id,
name: row.strategy_name,
title: row.strategy_title,
constraints: row.constraints || [],
parameters: (0, util_1.mapValues)(row.parameters || {}, util_1.ensureStringValue),
sortOrder: row.sort_order,
milestoneId: row.milestone_id,
};
strategy.variants = row.strategy_variants || [];
return strategy;
}
isUnseenStrategyRow(feature, row) {
return (row.strategy_id &&
!feature.strategies?.find((s) => s?.id === row.strategy_id));
}
addSegmentToStrategy(feature, row) {
feature.strategies
?.find((s) => s?.id === row.strategy_id)
?.constraints?.push(...row.segment_constraints);
}
}
exports.default = ClientFeatureToggleDeltaReadModel;
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