Web app <img> not working

Technical Discussion
1

I am an experienced developer but have written mostly desktop applications. I am writing my first web server using Golang and it is working fine. I run it locally and can call it from a browser on the server or any other computer on my Wifi network I have three request handlers, one of which is called primesRequestHandler() and responds to requests starting with “/primes/”
I wanted to learn to bring in images so I added this line:
Rick
The Rick.jpg file is in the same directory as the main.go file.
The file fails to load and one of my handlers gets called.
So I logged the incoming request:
primesRequestHandler r.URL.Path: /primes/Rick.jpg
I would expect the browser to retrieve the file from the server using something like:
http://192.168.8.7:8080/Rick.jpg but I guess that’s not how it works.

2

I forgot to mention that I am using a template. I checked what the template is checking and this is how it shows there:
Rick
It seems fine.

3

This will not work, because Go do not know where to find the image:
<img alt="Rick" width="100" height="80">

You must add the path to the image
<img src="/img/rick.jpg" alt="Rick">

And in main.go you add this line:

func init() {
	tpl = template.Must(template.ParseGlob("public/tmpl/*.html"))
	http.Handle("/img/", http.StripPrefix("/img/", http.FileServer(http.Dir("./public/img"))))
}

Assuming you have this folder structure: Install Go on Your Computer

3 Likes
4

Weird, somehow when I pasted the HTML into my message, it removed the src part. Maybe if I quote it:
“Rick”
Anyway your suggestion worked great. Thanks so much.

5

Wow that didn’t work either. You will have to trust me. the src setting is in there.

6

If you past your code directly it will appear as
Rick
If you select your code and use the ‘</>’ button it will appear as code:
<img src="/img/rick.jpg" alt="Rick"> (or use backticks `)

7 
<img src="/images/Rick.jpg" alt="Rick" width="100" height="80">

I’ll try it. I figured there must be some way to show code.

1 Like
9

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