Extracted Clients into a consistent interface, fixed type issue in http.Client

rpc/client/interface.go

@@ -0,0 +1,52 @@
+/*
+package client provides a general purpose interface for connecting
+to a tendermint node, as well as higher-level functionality.
+
+The main implementation for production code is http, which connects
+via http to the jsonrpc interface of the tendermint node.
+
+For connecting to a node running in the same process (eg. when
+compiling the abci app in the same process), you can use the local
+implementation.
+
+For mocking out server responses during testing to see behavior for
+arbitrary return values, use the mock package.
+
+In addition to the Client interface, which should be used externally
+for maximum flexibility and testability, this package also provides
+a wrapper that accepts any Client implementation and adds some
+higher-level functionality.
+*/
+package client
+
+import (
+	ctypes "github.com/tendermint/tendermint/rpc/core/types"
+	"github.com/tendermint/tendermint/types"
+)
+
+type Client interface {
+	// general chain info
+	Status() (*ctypes.ResultStatus, error)
+	NetInfo() (*ctypes.ResultNetInfo, error)
+	Genesis() (*ctypes.ResultGenesis, error)
+
+	// reading from abci app
+	ABCIInfo() (*ctypes.ResultABCIInfo, error)
+	ABCIQuery(path string, data []byte, prove bool) (*ctypes.ResultABCIQuery, error)
+
+	// writing to abci app
+	BroadcastTxCommit(tx types.Tx) (*ctypes.ResultBroadcastTxCommit, error)
+	BroadcastTxAsync(tx types.Tx) (*ctypes.ResultBroadcastTx, error)
+	BroadcastTxSync(tx types.Tx) (*ctypes.ResultBroadcastTx, error)
+
+	// validating block info
+	BlockchainInfo(minHeight, maxHeight int) (*ctypes.ResultBlockchainInfo, error)
+	Block(height int) (*ctypes.ResultBlock, error)
+	Commit(height int) (*ctypes.ResultCommit, error)
+	Validators() (*ctypes.ResultValidators, error)
+
+	// TODO: add some sort of generic subscription mechanism...
+
+	// remove this???
+	// DialSeeds(seeds []string) (*ctypes.ResultDialSeeds, error)
+}