Can't change Global variable with API

RouterOS Scripting
1

Hi everyone~ I recently try to do some development with APi，and I got a proboem…
I try to use the api to run a script in the router. It suppose to switch the global variable betwwen “0” and “1”,but it never change.(in the same time,the ":beep "is working)
And it work find If I run the script under telnet or winbox. Can somebody tell me what i have missed ?
Here is the script

:global stat
:if ($stat=1)  do={:set $stat 0} else={:set stat 1}
:beep length=1s
2
3

What permissions does the API user have?
What permissions does the script have?
Which user is the owner of the script?

We just talked about this in another thread.
Here: http://forum.mikrotik.com/t/global-variables-and-user-permission-policy/99366/1

4

script owner is the same as the API user,
and the user is in full group.
Script permissions is all…

5

Not sure it is important, but the use of $ sign here looks inconsistent.

6

.I miss a “blank” after “if” when I typed the code , The script in my router it have a “blank”,so the script is ok.

7

I try the run a script with API and the variable is modify by the script.. not to use api to modify the variable …

8

The $s are correct, the “if” statment however was missing a space.
This works:

:global stat
{
:if ($stat=1) do={:set $stat 0} else={:set stat 1}
:put $stat
}



Does this mean you got it to work?
EDIT: Guess not.

9

script owner is the same as the API user,
and the user is in full group.
Script permissions is all…
The most important thing is I run the script with the same user, telnet is ok,api is not.but the “beep” part is both working.

10

I went by the title of your thread when I quoted that, sorry.

So are you even sure that the script is even run?
What is the code you use to run the script?

To run a script in one of my API programs I do the following (C# using this):

public static bool RunScript(string scriptName)
{
    bool assumption = false;
    MK _mikrotik = new MK(_ip);
    if (_mikrotik.Login(_username, _password))
    {
        string scriptId = null;
        _mikrotik.Send("/system/script/print");
        _mikrotik.Send("=.proplist=.id");
        _mikrotik.Send("?name=" + scriptName);
        _mikrotik.Send(".tag=findscript", true);
        foreach (string h in _mikrotik.Read())
        {
            if (h.StartsWith("!done.tag=findscript"))
                System.Diagnostics.Debug.WriteLine(h + " *** ACK");
            else if (h.StartsWith("!re.tag=findscript"))
            {
                System.Diagnostics.Debug.WriteLine(h + " *** ACK");
                scriptId = h.Substring("!re.tag=findscript=.id=".Length);
            }
            else
                System.Diagnostics.Debug.WriteLine(h);
        }
        if (String.IsNullOrEmpty(scriptId))
            return false;
        assumption = true;
        _mikrotik.Send("/system/script/run");
        _mikrotik.Send("=.id=" + scriptId);
        _mikrotik.Send(".tag=runscript", true);
        foreach (string h in _mikrotik.Read())
        {
            if (h.StartsWith("!done.tag=runscript"))
                System.Diagnostics.Debug.WriteLine(h + " *** ACK");
            else
            {
                System.Diagnostics.Debug.WriteLine(h);
                assumption = false;
            }
        }
    }
    _mikrotik.Close();
    return assumption;
}
11

I have try you code, still can change the variables but the “beep” still work.

12

How comes the following statements (with and without $) are both correct?

{:set $stat 0}
{:set stat 1}

13

with $ or not is the same

14

I don’t know, but according to the manual and my experience, when you set or define a variable you should not prefix it with a $.
See: http://wiki.mikrotik.com/wiki/Manual:Scripting#Variables

EDIT: Ooh, wait, you are right.
I though you meant that the last one should have a $ too. I blame my killer headache.

:global stat
{
:if ($stat=1) do={:set stat 0} else={:set stat 1}
:put $stat
}

Fixed it, but oddly enough it worked when I pasted it in the console with the $.
And testing it further, it seems to work fine with or without the $.

15

Despite “$” problem … flipping stat from 0 to 1 and from 1 to 0 could be done as:

:set stat (1-$stat)

Remeber to initalize stat to 0 or 1 in the begining

16

Ok, Finally got to test it using the API, and I am able to reproduce your issue.
But I have to fiddle a little with users and permissions to test it fully.

Script I am using:

:global stat
{
    :if ($stat=1) do={
        :set stat 0
        :beep length=1
    } else={
        :set stat 1
        :beep length=2
    }
}

EDIT: User permissions and script ownership seems to make no difference. The $stat variable’s value will not change.
EDIT2: If I delete the global variable, I can also see that it is not even created when the script is run through the API. Permissions and script ownership again doesn’t seem to matter.

17

Something as simple as:

:global stat "test"
:log warning $stat
:beep

Seem to fail to actually create the global variable.
Almost as if it is treated as a local variable.

This seems to just fail to run:

:set stat "test"
:log warning $stat
:beep

Even if the global variable exist.

So is there some special permissions that aren’t allowed through the API? Or why would this be blocked.

18

Thank you for your testing!
I have done some test too，and I also think it treated that variable as local variable.
Is it a bug ?

19

still have the same problem in ros 6.41.2, hope it will be fixed in the next release.

20

Hi,
A tested dirty fix should be something like this:

[:execute {:global myglobalvar "myglobalvalue"}]

Another way is to set a scheduler with 1s interval and a line for deleting itself.