Nginx redirect dynamic URLs one path to another

Question

I want to check if a parameter is present in a url in nginx and then rewrite. How can i do that?

The color is dynamic in the URLs

For eg

1. If url is http://website.com/lunch-box/xxxxxabc then redirect user to http://website.com/lunch-box/ .

2. If URL is http://website.com/lunch-box/xxxxxabc/ABCD123 no need to redirect. Need to load as it is.

I want to redirect if URL is matched. and xxxxxabc is dynamic text.

nginx version: nginx/1.16.1

Answer 1

# rewrite direct children of /lunch-box but not grandchildren+
rewrite  ^(/lunch-box/)[^/]+/?$  $1  last;

Walking through the regex ^(/lunch-box/)[^/]+/?$

• ^ matches the start of a string ( rewrite rules match against the path, not the full URI)
• (/lunch-box/) matches the literal text /lunch-box/ and saves it for $1
• [^/]+ matches one or more characters that are not a forward slash
• /? matches zero or one forward slash
• $ matches the end of the string

This strips off the path past what we've saved as $1 , but only when that path is a direct child.