unleash-server/dist/lib/services/tag-service.js

Unleash is an enterprise ready feature flag service. It provides different strategies for handling feature flags.

import { tagSchema } from './tag-schema.js';
import NameExistsError from '../error/name-exists-error.js';
import { TagCreatedEvent, TagDeletedEvent } from '../types/index.js';
export default class TagService {
    constructor({ tagStore }, { getLogger }, eventService) {
        this.tagStore = tagStore;
        this.eventService = eventService;
        this.logger = getLogger('services/tag-service.js');
    }
    async getTags() {
        return this.tagStore.getAll();
    }
    async getTagsByType(type) {
        return this.tagStore.getTagsByType(type);
    }
    async getTag({ type, value }) {
        return this.tagStore.getTag(type, value);
    }
    async validateUnique(tag) {
        const exists = await this.tagStore.exists(tag);
        if (exists) {
            throw new NameExistsError(`A tag of ${tag} already exists`);
        }
    }
    async validate(tag) {
        const data = (await tagSchema.validateAsync(tag));
        await this.validateUnique(tag);
        return data;
    }
    async createTag(tag, auditUser) {
        const trimmedTag = {
            ...tag,
            value: tag.value.trim(),
        };
        const data = await this.validate(trimmedTag);
        await this.tagStore.createTag(data);
        await this.eventService.storeEvent(new TagCreatedEvent({
            data,
            auditUser,
        }));
        return data;
    }
    async deleteTag(tag, auditUser) {
        await this.tagStore.delete(tag);
        await this.eventService.storeEvent(new TagDeletedEvent({
            data: tag,
            auditUser,
        }));
    }
}
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