Get the json from the gltf

Hello there,

i want to access the complete json from the gltf file. I tried to get the root, but he is not displaying the whole json from the gltf file ?
This is what i see when i access the root of the GLTFSsceneImporter.

{
"ExtensionsUsed": [
"KHR_draco_mesh_compression",
"KHR_materials_emissive_strength"
],
"ExtensionsRequired": [
"KHR_draco_mesh_compression"
],
"IsGLB": false
}

I want to send the whole structure of the gltf to javascript as a json with all inside.
How is this possible to get those data that i need ?

Cheers :)