UrlJsonRpcProvider in ethers v6?

[zixiang2018]

Hi community, I am doing some migration from v5 and realised that UrlJsonRpcProvider is not longer in v6.

Is there a replacement which supports this in v6?

I can't find any information on it in the migration guide.

[ricmoo]

What were you using it for? In v6, you should be able to just use the JsonRpcProvider directly; the main reason for the UrlJsonRpcProvider in v5 was to lump all the 3rd-party community backends together and provide a simple API for defining their API keys, but since the API key varied so much between backends it ended up making very little sense…

[zixiang2018]

Thank you for the reply.

We were using it to create an infura or alchemy provider to get connection information using .connection. However it seems like there is no .connection in the v6 InfuraProvider and AlchemyProvider

After the above, we then use StaticJsonRpcProvider so that we can set our own custom limit as providers.StaticJsonRpcProvider({...provider.connection, throttleLimit:3}, network) but there wasn't provider.connection (mentioned above) and throttleLimit which was no longer a valid param for StaticJsonRpcProvider

The current v5 code kind of looks like this

const tempProvider = .... // this returns either Infura Provider or Alchemy Provider
new providers.StaticJsonRpcProvider({...tempProvider.connection, throttleLimit:3}, network)

May I check how we can obtain the connection info and set a throttle limit like before?

[zixiang2018]

Hi @ricmoo , on the same topic, may I also check how can I set the throttle limit like in v5?

I came across the setThrottleParam but I'm not sure of the correct way to set it on the provider object. Furthermore, the infuraProvider._getConnection() returns me an empty fetch object (not sure if I'm missing out something here)