HttpRequest.META
A standard Python dictionary containing all available HTTP headers. Available headers depend on the client
and server, but here are some examples:
•CONTENT_LENGTH – The length of the request body (as a string).
•CONTENT_TYPE – The MIME type of the request body.
•HTTP_ACCEPT – Acceptable content types for the response.
•HTTP_ACCEPT_ENCODING – Acceptable encodings for the response.
•HTTP_ACCEPT_LANGUAGE – Acceptable languages for the response.
•HTTP_HOST – The HTTP Host header sent by the client.
•HTTP_REFERER – The referring page, if any.
•HTTP_USER_AGENT – The client’s user-agent string.
•QUERY_STRING – The query string, as a single (unparsed) string.
•REMOTE_ADDR – The IP address of the client.
•REMOTE_HOST – The hostname of the client.
•REMOTE_USER – The user authenticated by the Web server, if any.
•REQUEST_METHOD – A string such as "GET" or "POST".
•SERVER_NAME – The hostname of the server.
•SERVER_PORT – The port of the server (as a string).
With the exception of CONTENT_LENGTH and CONTENT_TYPE, as given above, any HTTP headers in the
request are converted to META keys by converting all characters to uppercase, replacing any hyphens with
underscores and adding an HTTP_ prefix to the name. So, for example, a header called X-Bender would be
mapped to the META key HTTP_X_BENDER.
Note that runserver strips all headers with underscores in the name, so you won’t see them in META. This
prevents header-spoofing based on ambiguity between underscores and dashes both being normalizing to under-
scores in WSGI environment variables. It matches the behavior of Web servers like Nginx and Apache 2.4+.
