Failing to retrieve approvals

[TripleSpeeder]

TAC fails with error:
{"description":"Unable to perform HTTP request correctly","cause":{}}

Apparently the graphql backend by dfuse.io has been shut down.

[FMuro77]

Hello, any workaround?
Any other site as backend maybe,?
Thanks in advance.

[TripleSpeeder]

The problem is that TAC is relying heavily on the dfuse.io functionality. dfuse allowed to make a query like "give me all approval events since the genesis block, where the approver is the users address, no matter which contract logged the event or which account/contract created the transaction". And it returns results in an instance.
This is not possible using normal web3 APIs like getPastEvents (and if it was possible it would take forever to retrieve the events). Also thegraph.com does not support this type of query. Maybe trublocks.io can provide a similar powerful query. But this is definitely not a drop-in replacement :-/

[abourget]

A subgraph can index all the approvals (into a postgres db), and you can then query them from there. Wouldn't that work?

[FMuro77]

How about the JSON-RPC API call https://eth.wiki/json-rpc/API
I'm sure there will be some function that helps.

Edited:
In this link at bottom there are many libraries that could help
https://ethereum.org/en/developers/docs/apis/backend/#available-libraries

Edited 2:
Found its Telegram group https://t.me/dfusece on its GitHub https://github.com/dfuse-io/dfuse-eosio and seems there is a new site https://dfuse.eosnation.io/

Hope it helps.