TsgcHTTP2Client › Methods › Head

Head Method

Performs a synchronous HTTP/2 HEAD request, returning only the response headers without any body.

Syntax

procedure Head(const aURL: string);

Parameters

Name	Type	Description
aURL	const string	Absolute URL whose metadata (status, length, content type, cache validators) should be retrieved.

Remarks

HEAD is identical to GET except that the server must not return a message body. It is useful for checking resource existence, reading content-length or last-modified, or validating cache entries without paying the cost of the full download. The response headers become available on Request.Headers once the call returns.

Example

oClient.Head('https://api.example.com/download/large.bin');
vSize := oClient.Request.Headers.Values['content-length'];

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