Multiline text field JSON to array - SharePoint SPFx

Question

I'm building a webpart application using SharePoint SPFx with react.

I would like to use SharePoint's multiline text field as a way to store an array. I saw this thread here which said you can convert the array into a JSON to then store as a string.

The goal is to create a updating history list. So for example when someone makes any edits on the front end of my application on submit I want to store it like this:

0:
   Action: Updated item number 3
   User: John Smith
   Date: 07/14/2020
1:
   Action: Renamed item 22
   User: Diana Jane
   Date: 07/04/2020
2:
   Action: Removed item 4 and item 15
   User: Eli Perez
   Date: 07/03/2020

I myself will create this array I just need help on how to store it to be able to then loop through and display it on another page.

Answer 1

@hisusu32 do you mean how you would write this as a JSON structure, or how you would save in a SharePoint list?

As far as I would write it in JSON:

[
  {
    Action: 'Updated item number 3',
    User: 'John Smith',
    Date: '07/14/2020'
  },
  {
    Action: 'Renamed item 22',
    User: 'Diana Jane',
    Date: '07/04/2020'
  },
  {
    Action: 'Removed item 4 and item 15',
    User: 'Eli Perez',
    Date: '07/03/2020'
  }
]

Let us know if that's what you're looking for (and next steps) so we can help.