Launch speed (seems slow)

Targets Web
1

Hi, I guess there’s a reason why web apps take a while to load before anything happens.

A web app with a simple GoToURL in its session Opening event takes 2-3 seconds to reach after calling the page.

It’s running as a standalone webapp with an SSL cert on a fairly beefy MacPro.

Any thoughts on how things can be sped up?

Many thanks,
Dave.

2

See Xojo Web 2.0 FastStart

3

Thanks Mike - but we can’t pass /fast-cache.html to the app as we need to pass some other arguments and require the url to be as short as possible.

4
  • this is only a proof of concept, so I would encourage thorough testing if you plan to use it in production
  • The URL is up to you, you could use a single character “x” if you wanted to.
  • if you put a webserver proxy in front of the URL, the proxy could rewrite the URL so you could use the defalt “/” path.
5

what xojo version ? use 2021r3 to get fast webpage loading

6

OK Mike, but testing as-is, I get “File not found” with /fast-cache.html added to the url. In debug, it does catch the initial select case, but then bails out on the subsequent handlespecialURL.

7

That’s what I’m using Jean-Yves.

8

Check this line - you may need to adjust the URL to match your configuration
dim host as string = "http://127.0.0.1:" + str(app.Port) + "/"

You could also check Console.log to see if there are any errors being thrown.

9

That’s already there and in debug confirms port 8080 for debug run

When it hits

Dim h As String = u.SendSync("GET", host)

It fires another handleSpecialURL event but with no parameters to catch the select case statement and bails out to page not found…

10

Interesting - I’m not seeing that behavior - on my test, using fast-cache does work and the xojo webapp loads properly.

However, I am seeing what appears to be an extra HandleURL event where the path is blank. Not sure if this is a Xojo bug, and if it’s new in 2021 R3 ?

In my case, I ignore this request, and the app loads normally.

Here’s what the blank request looks like:

image
image750×424 34.3 KB

Edit to add: no, I see identical behavior on 2021 R2.1 and R3, so this is not a difference.

11

Right, I’ll give that a go Mike (and yes, I’m on 2021r3)

12

Apparently the handleURL event is supposed to fire once on the initial connection with an empty path, but the documetnation https://documentation.xojo.com/api/web/webapplication.html#webapplication-handleurl is a bit confusing. I’ve asked for the documentation to be clarified.

13

All I needs to figure out now is how to process a QueryString ?var=value after it’s done all the other stuff!

14

my fast-start example doesn’t pass along cookies or the queryString, so you would probably need to add those to the initial WebResponse.

However, I just found what appears to be a bug in WebResponse where it can’t set more than one cookie:
<https://xojo.com/issue/66772>
66772 - WebResponse.SetCookie only sets one cookie

Are you using cookies?

15

Thankfully, not for this small app!

16

the queryString should be available : https://documentation.xojo.com/api/web/webrequest.html#webrequest-querystring

17

All working much better now - thanks for your help today Mike :slight_smile:

18

Same issue here folks. Just wondering if you can share the fix?