Use ipld-eth-server RPC endpoint for eth_call

[ashwinphatak]

Fix depends on https://github.com/vulcanize/ops/issues/64

[nikugogoi]

Getting errors in eth_call when using ipld-eth-server RPC endpoint
Error from ethers.js which is using the endpoint

reason: 'processing response error',
code: 'SERVER_ERROR',
body: '{"jsonrpc":"2.0","id":44,"error":{"code":-32000,"message":"eth_call failed without error"}}\n',
error: Error: eth_call failed without error
  code: -32000,
  data: undefined

Error in ipld-eth-server log

ERRO[2021-08-06T12:02:18+05:30] tx cid retrieval error                       
ERRO[2021-08-06T12:02:18+05:30] ChainId failed with err missing destination name tx_type in *[]eth.TxModel 
WARN[2021-08-06T12:02:18+05:30] Caller gas above allowance, capping; requested: 9223372036854775807, cap: 1000000000000

Notes:

• Same eth_call works for geth_server.
• Methods like getBalance and blockNumber are working for ipld-eth-server.

[ramilexe]

Probably the problem with chain config. Please take a look: cerc-io/ipld-eth-server@97d8c4d
ipld-eth-server accepts chain parameter to pass custom chain config.

[nikugogoi]

Getting response now with proper values.

Using JSON RPC methods like getBalance and blockNumber log errors in ipld-eth-server

ERRO[2021-08-12T11:34:59+05:30] tx cid retrieval error                       
ERRO[2021-08-12T11:34:59+05:30] ChainId failed with err missing destination name tx_type in *[]eth.TxModel

Using eth_call for a contract shows the same errors along with a warning

WARN[2021-08-12T11:35:38+05:30] Caller gas above allowance, capping; requested: 9223372036854775807, cap: 1000000000000

[ramilexe]

As discussed in slack channel:

It appears when you use incompatible versions of statediff-migrations and ipld-eth-server.

here we added tx_type to transaction_cids table

here we do select * from transaction_cids and put it to TxModel object.

TxModel imported from ipld-eth-indexer and it is not updated to use tx_type field: https://github.com/vulcanize/ipld-eth-indexer/blob/c365dad5f72ec78e0f881421effc3fff9ae4737c/pkg/eth/models.go#L53-L63

Upgrading dependency to latest ipld-eth-indexer is in this PR cerc-io/ipld-eth-server#92

Also, to be able to work with existing version of ipld-eth-server please use statediff-migrations the same version
as in docker-compose file https://github.com/vulcanize/ipld-eth-server/blob/master/docker-compose.yml#L19

[ashwinphatak]

Works on ipld-eth-server master

[ashwinphatak]

Reopening as on current master, it shows the following error, though smoke tests pass:

WARN [09-23|11:48:37.083] Served eth_call                          conn=127.0.0.1:50906 reqid=92 t=3.312746ms err="eth_call failed without error"

[nikugogoi]

eth_call working and tested with ipld-eth-server master branch. Commit hash:
https://github.com/vulcanize/ipld-eth-server/tree/0f2b6fd84351aa91fd8aaeab75f7a67a23182c8f