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get_proxygen_headers

Note

This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information.

Fetch all HTTP request names in the order they were received from proxygen

namespace HH;

function get_proxygen_headers(): vec<(string)>;

Returns​

  • array - - An array of all the HTTP header names in the current request. Note: if the same header name appears more than once in the request headers sent by client, it will appear more than once in this array.