how to get full URL used to launch a WEB Core app?

WEB TMS WEB Core
1

I’ve searched around here and asked Google and I can’t seem to get a clear answer.

There’s a way to look for a specific name used as a query-string arg in the URL.

But I can’t find any way that lets you load whatever comes after the ? on the URL.

I found this example, but I can’t get the value assigned to anything without the IDE saying it’s undefined.

var queryString : string;
. . .
asm
queryString = window.location.search.substring(1);
end;

I don’t know how many ways to ask thie question, but none of them are getting me something that works.

I’ve tried this:

abc := GetQueryParam( 'abc' );
console.log( 'abc=['+abc+']' );

But adding …?abc=123 to the URL (launched with F9) only shows this:

abc=[]

What am I missing?

2

In unit WEBLib.WebTools.pas, you have 2 helper functions:

function GetQueryParam(AName: string): string;
function HasQueryParam(AName: string; var AValue: string; CaseSensitive: boolean = true): boolean;
3

I’m using that, as I illustrated.

So if I have ?abc=123 on the URL, what should GetQueryParem(‘abc’) return?

I’m getting an empty string.

4

I would expect it returns '123'

5

I can't see any problem

image
image506×325 4.28 KB

test code:

procedure TForm1.WebButton1Click(Sender: TObject);
var
  p: string;
begin
  if HasQueryParam('abc',p,true) then
    webmemo1.Lines.Add(p);
end;
6

I used the single parameter version. I’ll try the other one.

Thanks.

7

it turns out you need to put the ?arg1&arg2… BEFORE the #abc tags in the URL that the run-time system adds when you hit F9.

I’ve rarely worked with those in URLs. I guess the # effictively terminates the URL

8

The formal reference is RFC 3986, the URI syntax standard. RFC 3986: Uniform Resource Identifier (URI): Generic Syntax

It defines a URI as:

URI = scheme ":" hier-part [ "?" query ] [ "#" fragment ]

so, the hash should come at the end of the URL.

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