Implement eth_sendRawTransaction

[austinabell]

• RLP decodes raw transaction bytes, encodes it based on TxEncoder (amino in this case), then broadcasts tx to the node

I verified the tx decoding based on how I encoded the transaction and everything is functional as intended for this endpoint. One thing that needs to be revisited and verified is the transaction signing and verifying based on config/fork as there is no rigid setup for config for the running node.

To run:

make install 
rm -rf ~/.emint*
emintd init moniker --chain-id 3
emintcli config chain-id 3
emintcli config output json
emintcli config indent true
emintcli config trust-node true
emintcli keys add austin
testpass
testpass
emintcli emintkeys add austineth
testpass
testpass
emintd add-genesis-account $(emintcli keys show austin -a) 1000photon,100000000stake
emintd add-genesis-account $(emintcli emintkeys show austineth -a) 100000000photon,100000000stake
emintd gentx --name austin
testpass
emintd collect-gentxs
emintd validate-genesis
emintd start --pruning=nothing --rpc.unsafe

request:

curl -X POST --data '{"jsonrpc":"2.0","method":"eth_sendRawTransaction","params":["0xf866068609184e72a0008303000094fa3caabc8eefec2b5e2895e5afbf79379e7268a780801ca07f158e380711daf356974ea62bd7850e58e9b970bd1f1bd284a1bd1f38356cc6a05491535e9f67184a37e7f4209affc580df8fda69f1bfa67d6d5c134d57a52951"],"id":1}' -H "Content-Type: application/json" http://localhost:8545/rpc
## {"jsonrpc":"2.0","id":1,"result":"0xd3137915bb6c655e6097e84326e17f6742b2f97796f4a595653ea277f4314bbf"}

Transaction probably won't work because it is signed with wrong chainconfig, but can test with another raw transaction if needed.

[austinabell]

Rebase comparison failed so I force pushed with an updated branch with the commits cherry picked ontop so will make sure you're cool with changes before I merge.