Http.fs | A simple , functional HTTP client library for F

Please, try

I think you can just replace this:

Your primaryFiles.Open implementation, when given ".", returns a file rather than a dir. This is an error.

The documentation on fs.FS.Open should lead you to fs.ValidPath whose godoc states the following.

package fs // import "io/fs"

func ValidPath(name string) bool
ValidPath reports whether the given path name is valid for use in a call to Open.

Path names passed to open are UTF-8-encoded, unrooted, slash-separated sequences of path elements, like “x/y/z”. Path names must not contain an element that is “.” or “..” or the empty string, except for the special case that the root directory is named “.”. Paths must not start or end with a slash: “/x” and “x/” are invalid.

Note that paths are slash-separated on all systems, even Windows. Paths containing other characters such as backslash and colon are accepted as valid, but those characters must never be interpreted by an FS implementation as path element separators.

net/http.FileServer is banking on the fact that recursively redirecting on ../ should eventually get to some directory, but there is no directory to be found based on the way your primaryFiles.Open works. It could be argued that this is an opportunity to enhance net/http.FileServer, but it's not clear.

Option 1

Read the file to a slice of bytes. Write the bytes to the response.

Thanks to the comment by Cerise

The application parses all of the template files to one template set. The "content" template in test.html is the last "content" template to be added to the set. That's the one you see for each page. Parse the template for each page to a separate set.

So, here the correct working code

I solved it by fixing the static route as:

I found it, was missing http.StripPrefix, below worked perfectly with me, and have multiple static folders:

I finally figured it out...

You can keep the templates folder in the main folder and embed them from there. Then you need to inject the FS variable into the other handler package. It's always easy after you figure it out.

e.g.

File paths in an embedded directory are prefixed by the path used in the //go:embed directive. The embedded file system path for index.html is ​spa/index.html.

Create a sub file system rooted at the spa directory and serve that file system. The path for index.html in the sub file system is index.html.