25 lines
566 B
JavaScript
25 lines
566 B
JavaScript
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import _ from 'lodash';
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import { isMongoId } from 'validator';
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class MongoIds {
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constructor() {
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this.knownIds = [];
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}
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check(id, title) {
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if (!isMongoId(id)) {
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throw new Error(`Expected a valid ObjectId for ${title}, but got ${id}`);
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}
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const idIndex = _.findIndex(this.knownIds, existing => id === existing);
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if (idIndex !== -1) {
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throw new Error(`
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All challenges must have a unique id.
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The id for ${title} is already assigned
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`);
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}
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this.knownIds = [ ...this.knownIds, id ];
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}
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}
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export default MongoIds;
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