adymitruk

     #set up the dir structure if it doesn't exist
     set t ~/.trello; mkdir -p $t
     function if_exist # we don't want to litter our code with ifs if a read model or events are not there yet. Return /dev/nul for empty
         if test -e $t/$argv[1]; echo $t/$argv[1]; else; echo /dev/null; end
     end
     function list # provide lists from our tab delimited entries with filtering and line item numbers to make choices
         set list $argv[1]; set column_to_show $argv[2]; set filter $argv[3]; set count 1
         cat (if_exist $list) | grep -e "$filter\$" | while read line
             set -l line_items (string split \t $line)
             echo $count\) $line_items[$column_to_show]

graste

• Download/Installation:
  • https://geteventstore.com/downloads/
  • rpm/deb/etc: https://packagecloud.io/EventStore/EventStore-OSS/install
• on Ubuntu: sudo service eventstore start
• Admin GUI: http://127.0.0.1:2113 (admin:changeit)
• When eventstore is installed on host instead of in the virtualbox, use port forwarding:
  • vagrant ssh -- -R 2113:localhost:2113
• Introduction: http://docs.geteventstore.com/introduction/
• Store events to a stream:
  • streams are automatically created by posting data for the stream name

ImaginaryDevelopment

// adapted from https://github.com/gregoryyoung/m-r/blob/master/SimpleCQRS/CommandHandlers.cs
// actual code https://github.com/thinkbeforecoding/m-r/tree/FSharp/FsSimpleCQRS

module Commands =
    //[<Abstract>]
    
    type DeactivateInventoryItem =
        {
            InventoryItemId: Guid
            OriginalVersion: int // version I'm acting on, for checking to make sure my change only fires if the data the change was based on is still unchanged