getFlattenedHeadersMap

@h4ad/serverless-adapter > getFlattenedHeadersMap

(function) getFlattenedHeadersMap

Transform a header map and make sure the value is not an array

Signature:

export declare function getFlattenedHeadersMap(headersMap: BothValueHeaders, separator?: string, lowerCaseKey?: boolean): Record<string, string>;

Parameters

Parameter	Type	Description
headersMap	BothValueHeaders	The initial headers
separator	string	(Optional) The separator used when we join the array of header's value
lowerCaseKey	boolean	(Optional) Should put all keys in lowercase

Returns:

Record<string, string>

Example

const headers = \{ 'accept-encoding': 'gzip', 'accept-language': ['en-US', 'en;q=0.9'] };
const flattenedHeaders = getFlattenedHeadersMap(headers, ',', true);
console.log(flattenedHeaders);
// \{ 'accept-encoding': 'gzip', 'accept-language': 'en-US,en;q=0.9' }