Hi and welcome
Do you mean the sidebar debug window only allows the first 999 to be viewable. If so the whole array is there, it just the sidebar display is saving resources. try sending the payload to file write node and saving it to a text file.
If not you will need to supply a example flow so we can see the issue first hand How to import/export a flow
In order to make code readable and usable it is necessary to surround your code with three backticks (also known as a left quote or backquote ```)
```
code goes here
```
You can edit and correct your post by clicking the pencil 
icon.
See this post for more details - How to share code or flow json
You may benifit watching the essentials videos. which will give you a greater understanding of node-red basics and the debug sidebar display.
