String lengths

RouterOS Scripting
1

Hi,

I am writing a script that fetches the latest release note and forwards and excerpt to a server backend, put I am struggling with no text showing of the release note is long.

An example:

tool/fetch  http://upgrade.mikrotik.com/routeros/7.12beta7/CHANGELOG
:put [file/get CHANGELOG contents ]

Results in no output, while if doing the same with a (much) shorter release note it works:

tool/fetch  http://upgrade.mikrotik.com/routeros/7.11.2/CHANGELOG
:put [file/get CHANGELOG contents ]

Results in the release note being shown as expected.

I suspect that I am running in to some limitation of ROS string lengths, but I am not sure if I somehow can work around this.

Any suggestions are much appreciated! :slight_smile:

2

The problem is not the variable but that fetch retrieves up 64KB and then you have to use chunking if you want more data.

3

Why uselessly do that?
Simply the backend read https://upgrade.mikrotik.com/routeros/7.12beta7/CHANGELOG

4

I agree that it would be more efficient to let the backend handle it. But the backend is beyond my control.

I got it working using this approach:

global test [/tool/fetch "http://upgrade.mikrotik.com/routeros/7.12beta9/CHANGELOG" output=user as-value]

Instead of having the intermediate step where it is stored as a file.