Unable to connect + Uncatchable api error

I’m trying to connect to my unsynced node with api 1.0.0-beta.17

target=#750431 (25 peers), best: #520014

I’m getting

which is uncatchable with both of these

try {
  let api = await ApiPromise.create().catch(e => {})
} catch (e) {}

It also doesn’t emit error on

provider.on('error',(e)=>{})

It results in stuck application since I can’t react on anything that happened here. It also happens when you get error while connecting to wsprovider but it can be handled by wrapping api creation inside another promise, which I can reject. It is not ideal, but it works.

When trying to connect to wss://cc3-5.kusama.network/ I get this on the other hand

[jak-pan]

This looks like a good fix. It should be documented however to catch apiPromise.create() since it can crash now.

[jacogr]

In this case you got very unlucky on Kusama. The issue is that at some point metadata v9 was actually broken - a type was added without changing the metadata version. (The bump to metadata v10 fixed that - retrospectively)

However, despite the brokenness there, going to keep this issue as logged and see what we can do around the error handling so it properly propagates.