Check if the request is fresh, aka Last-Modified and/or the ETag still match.
Parse the "Host" header field hostname.
Return the remote address, or when
"trust proxy" is true return
the upstream addr.
When "trust proxy" is true, parse
the "X-Forwarded-For" ip address list.
For example if the value were "client, proxy1, proxy2"
you would receive the array ["client", "proxy1", "proxy2"]
where "proxy2" is the furthest down-stream.
Short-hand for url.parse(req.url).pathname.
Return the protocol string "http" or "https" when requested with TLS. When the "trust proxy" setting is enabled the "X-Forwarded-Proto" header field will be trusted. If you're running behind a reverse proxy that supplies https for you this may be enabled.
After middleware.init executed, Request will contain res and next properties See: express/lib/middleware/init.js
Short-hand for:
req.protocol == 'https'
Check if the request is stale, aka "Last-Modified" and / or the "ETag" for the resource has changed.
Only valid for response obtained from http.ClientRequest.
Only valid for response obtained from http.ClientRequest.
Return subdomains as an array.
Subdomains are the dot-separated parts of the host before the main domain of the app. By default, the domain of the app is assumed to be the last two parts of the host. This can be changed by setting "subdomain offset".
For example, if the domain is "tobi.ferrets.example.com":
If "subdomain offset" is not set, req.subdomains is ["ferrets", "tobi"].
If "subdomain offset" is 3, req.subdomains is ["tobi"].
Check if the request was an XMLHttpRequest.
Check if the given type(s) is acceptable, returning
the best match when true, otherwise undefined, in which
case you should respond with 406 "Not Acceptable".
The type value may be a single mime type string
such as "application/json", the extension name
such as "json", a comma-delimted list such as "json, html, text/plain",
or an array ["json", "html", "text/plain"]. When a list
or array is given the best match, if any is returned.
Examples:
// Accept: text/html
req.accepts('html');
// => "html"
// Accept: text/*, application/json
req.accepts('html');
// => "html"
req.accepts('text/html');
// => "text/html"
req.accepts('json, text');
// => "json"
req.accepts('application/json');
// => "application/json"
// Accept: text/*, application/json
req.accepts('image/png');
req.accepts('png');
// => undefined
// Accept: text/*;q=.5, application/json
req.accepts(['html', 'json']);
req.accepts('html, json');
// => "json"
Returns the first accepted charset of the specified character sets, based on the request's Accept-Charset HTTP header field. If none of the specified charsets is accepted, returns false.
For more information, or if you have issues or concerns, see accepts.
Returns the first accepted encoding of the specified encodings, based on the request's Accept-Encoding HTTP header field. If none of the specified encodings is accepted, returns false.
For more information, or if you have issues or concerns, see accepts.
Returns the first accepted language of the specified languages, based on the request's Accept-Language HTTP header field. If none of the specified languages is accepted, returns false.
For more information, or if you have issues or concerns, see accepts.
Event emitter The defined events on documents including:
Clear cookie name.
Return request header.
The Referrer header field is special-cased,
both Referrer and Referer are interchangeable.
Examples:
req.get('Content-Type');
// => "text/plain"
req.get('content-type');
// => "text/plain"
req.get('Something');
// => undefined
Aliased as req.header().
Check if the incoming request contains the "Content-Type"
header field, and it contains the give mime type.
Examples:
// With Content-Type: text/html; charset=utf-8
req.is('html');
req.is('text/html');
req.is('text/*');
// => true
// When Content-Type is application/json
req.is('json');
req.is('application/json');
req.is('application/*');
// => true
req.is('html');
// => false
Parse Range header field, capping to the given size.
Unspecified ranges such as "0-" require knowledge of your resource length. In
the case of a byte range this is of course the total number of bytes.
If the Range header field is not given undefined is returned.
If the Range header field is given, return value is a result of range-parser.
See more ./types/range-parser/index.d.ts
NOTE: remember that ranges are inclusive, so for example "Range: users=0-3" should respond with 4 users when available, not 3.
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Return an array of Accepted media types ordered from highest quality to lowest.