{"source":"semconv","version":"1.44.0","attribute":{"id":"http.request.body.size","type":"int","stability":"development","brief":"The size of the request payload body in bytes. This is the number of bytes transferred excluding headers and is often, but not always, present as the [Content-Length](https://www.rfc-editor.org/rfc/rfc9110.html#field.content-length) header. For requests using transport encoding, this should be the compressed size.","examples":["3495"],"namespace":"http","definedIn":"model/http/registry.yaml","usedBy":[{"groupId":"span.http.client","groupType":"span","requirementLevel":"opt_in"},{"groupId":"span.http.server","groupType":"span","requirementLevel":"opt_in"}]},"history":[{"version":"1.30.0","publishedAt":"2025-01-24T19:11:42Z","kind":"first-seen","detail":"Already present at v1.30.0, the oldest release tracked here (experimental)."},{"version":"1.31.0","publishedAt":"2025-03-11T00:53:13Z","kind":"stability-changed","detail":"Stability label respelled from experimental to development.","severity":"informational"}],"replaces":["http.request_content_length_uncompressed"]}