JSON hero does not allow you to open large JSON files

[NobleDraconian]

Currently, as of 4/29/22, if you attempt to open a large JSON file (around 22MB), the site does not allow you to open it. It simply acts as if you selected no file!

Usecase : Using JSON hero to browse log files & other automatically generated datastructures.

[bolshoytoster]

@NobleDraconian are there any errors in the console (f12)?

[ericallam]

Yup this is a known issue, and is related to how the Column View is implemented. We need to reimplement it using virtualization so we can scale the json documents. This is something that is definitely on the roadmap.

[ubuntudroid]

Sample JSON for you guys to try your implementation against: https://raw.githubusercontent.com/kareltucek/firmware/master/examples/mirroring_keymap.json

[matt-aitken]

@ericallam I've created a branch with column item virtualization. This is only part of the solution though.

Locally I'm getting RangeError: Maximum call stack size exceeded errors for very large files. I've found two separate causes for this:

1. Getting related paths, i.e. the getRelatedPathsAtPath function. Example: https://jsonplaceholder.typicode.com/photos
2. Inferring the types. Example from @ubuntudroid above: https://raw.githubusercontent.com/kareltucek/firmware/master/examples/mirroring_keymap.json

[paulmwatson]

Great to hear this is on the roadmap as my first test of JSON hero was a 14mb GEOJSON file and it didn't work at all; https://github.com/OpenUpSA/nu-land-parcel-map/blob/main/src/data/complete.json

[ericallam]

@paulmwatson thanks for sending us a nice large JSON file to test with!

[migdur]

Hello, is there any progress on this topic? I can also supply large json files (around 4.7MB) for testing/debugging purposes if needed. Thanks.

[jonaskuiler]

Hey @ericallam, is there anything I can do to help?

[arunmg007]

Facing the same issue @ericallam, is this in the roadmap to support large files?