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ContentEncoding

property ContentEncoding: string read;

Example​

procedure ScriptEvent(var Value: variant);
begin
  if Request <> nil then
    Value := Request.ContentEncoding
  else
    Value := '';
end;

Usage​

ContentEncoding returns Velox's parsed Content-Encoding field text without decoding or decompressing the request body.

Additional Technical Info​

ContentEncoding returns Indy's stored value derived from the inbound Content-Encoding header. It is metadata describing content codings such as compression applied to the representation; it is not the character set used to turn text bytes into characters.

Reading this property does not decode or decompress Content, RawContent or ContentString. In particular, ContentString passes the still-coded raw bytes directly to a character decoder. If a request can be content-coded, the endpoint must either reject unsupported codings or use an approved bounded decompression stage before text/format parsing.

Treat coding names and order as untrusted. Multiple codings are ordered, and safe processing applies them in reverse order. Enforce limits on compressed size, expanded size, ratio, nesting and processing time to prevent resource-exhaustion attacks. An empty value normally means no coding was selected; it does not validate the body.

The property is read-only live request state and may reflect only the first header value selected by Indy. Test Request for nil and do not use this value as evidence that decoding already occurred.

External references

Created 2026-07-15