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Nolann B.
19 lines
654 B
TypeScript
19 lines
654 B
TypeScript
/**
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* Merges two header objects, removing duplicate headers case-insensitively.
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* Headers from the second object take precedence over headers from the first object.
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*/
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export function mergeHeaders(
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baseHeaders: Record<string, string>,
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overrideHeaders: Record<string, string>
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): Record<string, string> {
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const overrideKeysLower = new Set(Object.keys(overrideHeaders).map((key) => key.toLowerCase()));
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const filteredBaseHeaders = Object.fromEntries(
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Object.entries(baseHeaders).filter(([key]) => !overrideKeysLower.has(key.toLowerCase()))
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);
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return {
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...filteredBaseHeaders,
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...overrideHeaders,
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};
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}
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