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17 lines
498 B
TypeScript
17 lines
498 B
TypeScript
import MissingConfigurationValueError from '../errors/MissingConfigurationValueError'
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import type { NonUndefined, ValueOf } from '../types'
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const requireConfig = <T>(isomorphicConfig: T, key: keyof T) => {
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const valueUnderKey = isomorphicConfig[key]
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if (typeof valueUnderKey === 'undefined') {
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throw new MissingConfigurationValueError(
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`Value for configuration key ${key} was undefined.`
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)
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}
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return valueUnderKey as NonUndefined<ValueOf<T>>
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}
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export default requireConfig
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