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Extend Rosetta to work with MyCelo testnets (#201)
* Add geth.networkid parameter * Implement static block processing with --monitor.initcontracts flag * Update README with mycelo instructions
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Eela Nagaraj
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Aug 24, 2023
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,144 @@ | ||
| // Copyright 2023 Celo Org | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package monitor | ||
|
|
||
| import ( | ||
| "context" | ||
| "math/big" | ||
|
|
||
| "github.com/celo-org/celo-blockchain/accounts/abi/bind" | ||
| "github.com/celo-org/celo-blockchain/common" | ||
| "github.com/celo-org/celo-blockchain/log" | ||
| "github.com/celo-org/kliento/client" | ||
| "github.com/celo-org/kliento/contracts" | ||
| "github.com/celo-org/kliento/registry" | ||
| "github.com/celo-org/rosetta/db" | ||
| ) | ||
|
|
||
| type staticProcessor struct { | ||
| callOpts *bind.CallOpts | ||
| boundRegistry *contracts.Registry | ||
| cc *client.CeloClient | ||
| logger log.Logger | ||
| } | ||
|
|
||
| func newStaticProcessor( | ||
| ctx context.Context, | ||
| blockNumber *big.Int, | ||
| cc *client.CeloClient, | ||
| logger log.Logger, | ||
| ) (*staticProcessor, error) { | ||
| boundRegistry, err := contracts.NewRegistry(registry.RegistryAddress, cc.Eth) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| callOpts := &bind.CallOpts{ | ||
| Context: ctx, | ||
| BlockNumber: blockNumber, | ||
| } | ||
| return &staticProcessor{ | ||
| callOpts: callOpts, | ||
| boundRegistry: boundRegistry, | ||
| logger: logger.New("pipe", "static_processor"), | ||
| cc: cc, | ||
| }, nil | ||
| } | ||
|
|
||
| func (sf *staticProcessor) fetchContractAddresses() ([]db.RegistryChange, error) { | ||
| contractAddresses := []db.RegistryChange{} | ||
|
|
||
| for _, contractId := range registry.RegisteredContractIDs { | ||
| contractStrName := contractId.String() | ||
| contractAddress, err := sf.boundRegistry.GetAddressForString(sf.callOpts, contractStrName) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| contractAddresses = append(contractAddresses, db.RegistryChange{ | ||
| TxIndex: 0, | ||
| Contract: contractStrName, | ||
| NewAddress: contractAddress, | ||
| }) | ||
| sf.logger.Info("Found Core Contract address", "name", contractStrName, "newAddress", contractAddress.Hex()) | ||
| } | ||
| return contractAddresses, nil | ||
| } | ||
|
|
||
| func (sf *staticProcessor) fetchGasPriceMinimum() (*big.Int, error) { | ||
| gpmAddress, err := sf.boundRegistry.GetAddressForString(sf.callOpts, registry.GasPriceMinimumContractID.String()) | ||
| if err != nil || gpmAddress == common.ZeroAddress { | ||
| return nil, err | ||
| } | ||
| gpmContract, err := contracts.NewGasPriceMinimum(gpmAddress, sf.cc.Eth) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return gpmContract.GetGasPriceMinimum(sf.callOpts, common.ZeroAddress) | ||
| } | ||
|
|
||
| func (sf *staticProcessor) fetchCarbonOffsetPartner() (*db.CarbonOffsetPartnerChange, error) { | ||
| epochRewardsAddress, err := sf.boundRegistry.GetAddressForString(sf.callOpts, registry.EpochRewardsContractID.String()) | ||
| if err != nil || epochRewardsAddress == common.ZeroAddress { | ||
| return nil, err | ||
| } | ||
| epochRewards, err := contracts.NewEpochRewards(epochRewardsAddress, sf.cc.Eth) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| offsettingPartner, err := epochRewards.CarbonOffsettingPartner(sf.callOpts) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| return &db.CarbonOffsetPartnerChange{TxIndex: 0, Address: offsettingPartner}, nil | ||
| } | ||
|
|
||
| // Fetches relevant state from block and updates the Rosetta DB accordingly. | ||
| // This is necessary for running Rosetta on networks that have Core Contracts | ||
| // already deployed at genesis (e.g. myCelo networks). | ||
| func UpdateDBForBlock( | ||
| ctx context.Context, | ||
| blockNumber *big.Int, | ||
| cc *client.CeloClient, | ||
| rosettaDB db.RosettaDB, | ||
| logger log.Logger, | ||
| ) error { | ||
| sf, err := newStaticProcessor(ctx, blockNumber, cc, logger) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| sf.logger.Info("Fetching contract state", "block", blockNumber) | ||
| contractAddresses, err := sf.fetchContractAddresses() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| gpm, err := sf.fetchGasPriceMinimum() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| sf.logger.Info("Found GasPriceMinimum", "block", blockNumber, "GPM", gpm) | ||
| carbonOffsetPartner, err := sf.fetchCarbonOffsetPartner() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| if carbonOffsetPartner != nil { | ||
| sf.logger.Info("Found CarbonOffsetPartner", "block", blockNumber, "address", carbonOffsetPartner.Address) | ||
| } | ||
|
|
||
| return rosettaDB.ApplyChanges(ctx, &db.BlockChangeSet{ | ||
| BlockNumber: blockNumber, | ||
| RegistryChanges: contractAddresses, | ||
| GasPriceMinimum: gpm, | ||
| CarbonOffsetPartnerChange: *carbonOffsetPartner, | ||
| }) | ||
| } |