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84 lines
2.9 KiB
84 lines
2.9 KiB
/*
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package client provides a general purpose interface (Client) for connecting
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to a tendermint node, as well as higher-level functionality.
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The main implementation for production code is client.HTTP, which
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connects via http to the jsonrpc interface of the tendermint node.
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For connecting to a node running in the same process (eg. when
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compiling the abci app in the same process), you can use the client.Local
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implementation.
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For mocking out server responses during testing to see behavior for
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arbitrary return values, use the mock package.
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In addition to the Client interface, which should be used externally
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for maximum flexibility and testability, and two implementations,
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this package also provides helper functions that work on any Client
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implementation.
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*/
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package client
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import (
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data "github.com/tendermint/go-wire/data"
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ctypes "github.com/tendermint/tendermint/rpc/core/types"
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"github.com/tendermint/tendermint/types"
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)
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// ABCIClient groups together the functionality that principally
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// affects the ABCI app. In many cases this will be all we want,
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// so we can accept an interface which is easier to mock
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type ABCIClient interface {
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// reading from abci app
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ABCIInfo() (*ctypes.ResultABCIInfo, error)
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ABCIQuery(path string, data data.Bytes, prove bool) (*ctypes.ResultABCIQuery, error)
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// writing to abci app
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BroadcastTxCommit(tx types.Tx) (*ctypes.ResultBroadcastTxCommit, error)
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BroadcastTxAsync(tx types.Tx) (*ctypes.ResultBroadcastTx, error)
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BroadcastTxSync(tx types.Tx) (*ctypes.ResultBroadcastTx, error)
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}
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// SignClient groups together the interfaces need to get valid
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// signatures and prove anything about the chain
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type SignClient interface {
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Block(height *int) (*ctypes.ResultBlock, error)
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Commit(height *int) (*ctypes.ResultCommit, error)
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Validators(height *int) (*ctypes.ResultValidators, error)
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Tx(hash []byte, prove bool) (*ctypes.ResultTx, error)
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}
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// HistoryClient shows us data from genesis to now in large chunks.
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type HistoryClient interface {
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Genesis() (*ctypes.ResultGenesis, error)
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BlockchainInfo(minHeight, maxHeight int) (*ctypes.ResultBlockchainInfo, error)
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}
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type StatusClient interface {
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// general chain info
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Status() (*ctypes.ResultStatus, error)
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}
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// Client wraps most important rpc calls a client would make
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// if you want to listen for events, test if it also
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// implements events.EventSwitch
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type Client interface {
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ABCIClient
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SignClient
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HistoryClient
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StatusClient
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// this Client is reactive, you can subscribe to any TMEventData
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// type, given the proper string. see tendermint/types/events.go
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types.EventSwitch
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}
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// NetworkClient is general info about the network state. May not
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// be needed usually.
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//
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// Not included in the Client interface, but generally implemented
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// by concrete implementations.
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type NetworkClient interface {
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NetInfo() (*ctypes.ResultNetInfo, error)
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DumpConsensusState() (*ctypes.ResultDumpConsensusState, error)
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}
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