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What are the guidelines around generating a uid for the Meetings.AddMeeting web service call if I am not using C#? I am actually making the call from iOS/android.

Would any random string of numbers/letters with the dashes work?

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up vote 2 down vote accepted

Generating UUID/GUID is defined by RFC 4122. The description and an example to generate them is shown here - Generate GUID Online (in PHP but can be translated to other languages).

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The generated GUIDs on that page look to be of type 1, i.e. they are based on the time and system they are run on. There is a link at the bottom to another online generator that allows you to generate type 4 (random) GUIDs. – shufler Jun 15 '12 at 18:56
I think the PHP example generates Type 4 (as per the link page) and defined by RFC 4122 4.4. Type 1 uses time stamps & clock as defined RFC 4122 4.2.2. The RFC 4122 (link above) describes the types and also includes sample 'C' code to generate the GUID. – Supriyo SB Chatterjee Jun 15 '12 at 19:08
Right, though when you compare the GUIDs generated on the first page with the type 1 GUIDs on the second page, (at least for me) they are very similar. Site 1: E6DE9E60-B71E-11E1-BD36-C20D6288709B, site 2: f00a3c10-b71e-11e1-afa6-0800200c9a66. Note the B71E-11E1 parts that are in common. – shufler Jun 15 '12 at 19:19
that is not the (PHP) link I mentioned above.. apparently the other link ( has obviously some issues since the middle segments repeats itself! – Supriyo SB Chatterjee Jun 15 '12 at 19:28
Thank you; it is more complicated than I thought, but luckily I do happen to be familiar with PHP. I will post iOS code when I implement this. – electrichead Jun 15 '12 at 20:05

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