I'm trying to figure out if it is possible to forward a query-parameter from the original URL to the auth_request
handler/service?
Users should be able to add the API-token as a query-parameter like this:
https://example.com/api/user?token=237263864823674238476
And not via header
or cookie
. Can I access the token
parameter somehow in the auth-service? Or write the token
query-parameter in a custom header with NGINX?
Tried this so far:
location = /api/user {
auth_request /auth;
proxy_set_header X-auth-token-from-query $arg_token;
proxy_pass http://<url>;
}
/auth
endpoint doesn't get the X-auth-token-from-query
header but after returning a 200
the upstream-proxy does get the header.
You'll very likely want to pass the url (the uri) to the auth-request endpoint as well. You can do this in one go:
location = /api/auth {
proxy_set_header X-Original-URI $request_uri;
proxy_set_header X-Original-METHOD $request_method;
proxy_pass_request_body off;
proxy_set_header Content-Length "";
proxy_pass http://<url>;
}
Bonus: I also passed the method! :tada:
The following worked for me
location = /auth {
internal;
set $query '';
if ($request_uri ~* "[^\?]+\?(.*)$") {
set $query $1;
}
proxy_pass http://myauthpoint?$query;
proxy_pass_request_body off;
proxy_set_header Content-Length "";
}
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