I want to try kontent-sample-blog-travel-vue project in github, and it has JSON contents under 'sample-data' directory in Delivery API format.
I made my new Kontent project, and try to use ManagementAPI to import json, but it becomes error because of wrong JSON format.
Please tell me how can I re-import JSON, which exported in Delivery API format.
you are right, to import data from Delivery API to Management API, you need to make the transformations.
I have started with the pull request, which should guide people on how to import data using backup manager CLI, or via template manager UI.
Once the pull request is merged, I will update this answer.
EDIT:
OK, the pull request is closed and now the Vue travel blog sample site is ready to be used as a template.
In the readme, you can find instructions on how to create your own Kontent project as data source.
If you have any more questions/issues, feel free to submit an issue (or pull request) right in the repository.
This repository was also submitted as one of the templates in the Kontent template manager.