Fiber: 🔥 RENDER template files from embedded resources

[JohannesKaufmann]

Is your feature request related to a problem?
I want to render templates on the server, using embedded files from pkger.

Describe the solution you'd like
It would be great if one could pass in a http.FileSystem instead of the string.

// right now
app.Settings.Templates = pug.New("./public/views", ".pug")


// alternative? 
app.Settings.Templates = pug.NewEmbed(pkger.Dir("/public/views"), ".pug")

// alternative??
app.Settings.Templates.Root = pkger.Dir("/public/views")

Additional context

I am already using embed to serve static files (like css) and it works great! 🥳

similar to https://github.com/gofiber/fiber/issues/209 and https://github.com/gofiber/fiber/issues/375

---

_P.S.: I would mention the embed middleware in the docs (with the tag "FileSystem" so that you can find it in the search) and mention it in the static-files section._

_I was kind of disappointed - at first - that you didn't support that. Many routers don't have good support of embed, if at all. For example, echo has marked it as wont-fix 😢._

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[Fenny]

Hi @JohannesKaufmann, this should be possible.

<engine>.NewEmbed is good name, or maybe <engine>.Embed.

I will play with this today, I will keep you posted 👍

[Fenny]

@JohannesKaufmann, we are currently adding http.FileSystem support.

engine := html.NewFileSystem(http.Dir("./views"), ".html")

Thanks to @arsmn we got a neat walk function for embedded file systems.

We are 50% done https://github.com/Fenny/template/blob/master/html/html_test.go#L103 and I will notify you when we tag a release 👍

[Fenny]

@JohannesKaufmann if you update https://github.com/gofiber/template to the latest version, you can use the NewFileSystem method that allows you to pass in an http.FileServer interface.

pkger

https://github.com/markbates/pkger

package main

import (
    "github.com/gofiber/fiber"
    "github.com/gofiber/template/html"

    "github.com/markbates/pkger"
)

func main() {
    engine := html.NewFileSystem(pkger.Dir("/views"), ".html")

    app := fiber.New(&fiber.Settings{
        Views: engine,
    })

    // ...
}

packr

https://github.com/gobuffalo/packr

package main

import (
    "github.com/gofiber/fiber"
    "github.com/gofiber/template/html"

    "github.com/gobuffalo/packr/v2"
)

func main() {
    engine := html.NewFileSystem(packr.New("Templates", "/views"), ".html")

    app := fiber.New(&fiber.Settings{
        Views: engine,
    })

    // ...
}

go.rice

https://github.com/GeertJohan/go.rice

package main

import (
    "github.com/gofiber/fiber"
    "github.com/gofiber/template/html"

    "github.com/GeertJohan/go.rice"
)

func main() {
    engine := html.NewFileSystem(rice.MustFindBox("views").HTTPBox(), ".html")

    app := fiber.New(&fiber.Settings{
        Views: engine,
    })

    // ...
}

fileb0x

https://github.com/UnnoTed/fileb0x

package main

import (
    "github.com/gofiber/fiber"
    "github.com/gofiber/template/html"
    // your generated package
    "github.com/<user>/<repo>/static"
)

func main() {
    engine := html.NewFileSystem(static.HTTP, ".html")

    app := fiber.New(&fiber.Settings{
        Views: engine,
    })

    // ...
}

[JohannesKaufmann]

@Fenny great, that new _engine_ looks amazing.

This also solves some problems that I encountered in the meantime with the views. But this is now solved with Reload(true) 🎉

P.S.: I'm currently evaluating different strategies for hot reloading html, css and js files for rendered websites. That makes the feedback loop alot faster and plays nicely with _air_. I will let you know in the coming days how the middleware (using lrserver) could look like. I'm also happy to do a PR then...