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How can I generate Html on the server without a Context
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I would like to send email with html content generated from a Template. The Doc.Write: Context × HtmlTextWriter × bool → unit method works well for this but it requires a context. How can I create a dummy or default WebSharper.Web.Context so the server can send emails without necessarily responding to a request?

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Hi!

There is no built-in default object currently, but I have tested and this worked for me (with a server-side fragment that does not contain any client-side controls that would need resource context)

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let dummyCtx =
    { new WebSharper.Web.Context() with
        member this.RootFolder = failwith "Unsupported"
        member this.RequestUri = failwith "Unsupported"
        member this.UserSession = failwith "Unsupported"
        member this.Environment = failwith "Unsupported"
        member this.Json = failwith "Unsupported"
        member this.Metadata = failwith "Unsupported"
        member this.Dependencies = failwith "Unsupported"
        member this.ApplicationPath = failwith "Unsupported"
        member this.ResourceContext = failwith "Unsupported" }

Also I have used ServerLoad.Once like this:

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type MainTemplate = Templating.Template<"Main.html", serverLoad = ServerLoad.Once>

Otherwise the templating engine tries to create a FileSystemWatcher to respond to file changes, and this uses ctx.RootFolder if the file path is not fully specified.

Hope this helps!

By on 3/11/2019 6:38 AM ()

Good solution, thank you very much!

By on 3/11/2019 9:44 AM ()

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