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Versioning events in PROOPH #80

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Arkowsky opened this issue Oct 25, 2019 · 3 comments
Open

Versioning events in PROOPH #80

Arkowsky opened this issue Oct 25, 2019 · 3 comments

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@Arkowsky
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Hello,

I can't find any example or information about "Versioning Process Managers" or just Versioning in PROOPH.
Here is short version http://blog.approache.com/2019/02/versioning-in-event-sourced-system-tldr_10.html what Greg Young has written in this book - https://leanpub.com/esversioning/read.
Did I missed something or is TODO thing?

@prolic
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prolic commented Oct 25, 2019 via email

@Arkowsky
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Arkowsky commented Oct 25, 2019

I mean if you change structure of event e.g. add some field you have to manage that in your system e.g.
VERSION 1
{ foo : 'hello', bar : 3.9 }
VERSION 2
{ number : 3.9, str : 'hello', other : 15 }
(New field was added)
Greg Young describe it the best.
In my dreams this demo could show how to use strategies of Versioning Events.
If I good understand from Greg book "Versioning Process Managers" is the best option.
Please look at this
https://leanpub.com/esversioning/read#leanpub-auto-versioning-process-managers

@prolic
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prolic commented Oct 26, 2019 via email

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