Decode hex values returned from /runtime/metadata

[CurlyBracketEffect]

It would be useful if the value returned by the /runtime/metadata endpoint was decoded to decimal.

Currently, this is what is returned when querying Polkadot:

"constants": [
{
"name": "ExistentialDeposit",
"type": "6",
"value": "0x00e40b54020000000000000000000000",
"docs": [
" The minimum amount required to keep an account open."
]
},

The alternative to this would be to have the user convert it themselves, but being that this is SCALE encoded, they would need another library and the know-how to do so. Since the goal for Sidecar is to be an abstraction layer between PJS API and the user, I think this would be a good quality of life upgrade.

[TarikGul]

Okay so currently this is because the values expected from constants such as ExistentialDeposit are typed as a u128. Which in Javascript cant be greater than 53 bits. In this case it's returned as a hex value with the prototype chain being the following: -> Bytes -> Raw -> Uint8Array -> TypedArray -> Object.

Technically we can just use hexToBn(value, { isLe: true }).toString() when sanitizing. But the trouble I am having currently is how can we generically apply this to the sanitation process without making any assumptions on what the value of the bytes are (Is it a u128, or maybe a very large hex value containing a bunch of information 🤷 ).