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curl -X POST \
  http://127.0.0.1:8545/ \
  -H 'content-type: application/json' \
  -d '{
	"jsonrpc": "2.0",
	"method": "eth_blockNumber",
	"params": [],
	"id": 1
}'

curl -X POST \
  http://127.0.0.1:8545/ \
  -H 'content-type: application/json' \
  -d '{
	"jsonrpc": "2.0",
	"method": "eth_sendRawTransaction",
	"params": ["TBD"],
	"id": 1
}'