37 lines
1 KiB
JavaScript
37 lines
1 KiB
JavaScript
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import { has, mapKeys, pick } from 'lodash';
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/**
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* This method is used to type-safely set values on the given object
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*
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* @template T
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* @returns {T} A shallow copy of `obj`, with the values from `values`
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* @throws {Error} If `values` contains a key that isn't already on `obj`
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* @param {T} source
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* @param {Object} values
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*/
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export const withValues = (source, values) =>
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Object.entries(values).reduce(
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(acc, [key, value]) => {
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if (!has(acc, key)) {
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throw new Error(
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`[mock_server] Cannot write property that does not exist on object '${key}'`,
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);
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}
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return {
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...acc,
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[key]: value,
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};
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},
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{ ...source },
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);
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/**
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* This method returns a subset of the given object and maps the key names based on the
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* given `keys`.
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*
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* @param {Object} obj The source object.
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* @param {Object} map The object which contains the keys to use and mapped key names.
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*/
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export const withKeys = (obj, map) => mapKeys(pick(obj, Object.keys(map)), (val, key) => map[key]);
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