core

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README

Tendermint RPC

Pagination

Requests that return multiple items will be paginated to 30 items by default. You can specify further pages with the ?page parameter. You can also set a custom page size up to 100 with the ?per_page parameter.

Documentation

Overview

Introduction

Tendermint supports the following RPC protocols:

* URI over HTTP * JSONRPC over HTTP * JSONRPC over websockets

Tendermint RPC is built using our own RPC library which contains its own set of documentation and tests. See it here: https://github.com/tendermint/tendermint/tree/master/rpc/lib

## Configuration

RPC can be configured by tuning parameters under `[rpc]` table in the `$TMHOME/config/config.toml` file or by using the `--rpc.X` command-line flags.

Default rpc listen address is `tcp://0.0.0.0:26657`. To set another address, set the `laddr` config parameter to desired value. CORS (Cross-Origin Resource Sharing) can be enabled by setting `cors_allowed_origins`, `cors_allowed_methods`, `cors_allowed_headers` config parameters.

## Arguments

Arguments which expect strings or byte arrays may be passed as quoted strings, like `"abc"` or as `0x`-prefixed strings, like `0x616263`.

## URI/HTTP

```bash curl 'localhost:26657/broadcast_tx_sync?tx="abc"' ```

> Response:

```json 

{
	"error": "",
	"result": {
		"hash": "2B8EC32BA2579B3B8606E42C06DE2F7AFA2556EF",
		"log": "",
		"data": "",
		"code": "0"
	},
	"id": "",
	"jsonrpc": "2.0"
}

```

## JSONRPC/HTTP

JSONRPC requests can be POST'd to the root RPC endpoint via HTTP (e.g. `http://localhost:26657/`).

```json 

{
	"method": "broadcast_tx_sync",
	"jsonrpc": "2.0",
	"params": [ "abc" ],
	"id": "dontcare"
}

```

## JSONRPC/websockets

JSONRPC requests can be made via websocket. The websocket endpoint is at `/websocket`, e.g. `localhost:26657/websocket`. Asynchronous RPC functions like event `subscribe` and `unsubscribe` are only available via websockets.

## More Examples

See the various bash tests using curl in `test/`, and examples using the `Go` API in `rpc/client/`.

## Get the list

An HTTP Get request to the root RPC endpoint shows a list of available endpoints.

```bash curl 'localhost:26657' ```

> Response:

```plain Available endpoints: /abci_info /dump_consensus_state /genesis /net_info /num_unconfirmed_txs /status /health /unconfirmed_txs /unsafe_flush_mempool /unsafe_stop_cpu_profiler /validators

Endpoints that require arguments: /abci_query?path=_&data=_&prove=_ /block?height=_ /blockchain?minHeight=_&maxHeight=_ /broadcast_tx_async?tx=_ /broadcast_tx_commit?tx=_ /broadcast_tx_sync?tx=_ /commit?height=_ /dial_seeds?seeds=_ /dial_persistent_peers?persistent_peers=_ /subscribe?event=_ /tx?hash=_&prove=_ /unsafe_start_cpu_profiler?filename=_ /unsafe_write_heap_profile?filename=_ /unsubscribe?event=_ ```

Endpoints

Index

Constants

View Source 
const (

	// SubscribeTimeout is the maximum time we wait to subscribe for an event.
	// must be less than the server's write timeout (see rpcserver.DefaultConfig)
	SubscribeTimeout = 5 * time.Second
)

Variables

View Source 
var Routes = map[string]*rpc.RPCFunc{

	"subscribe":       rpc.NewWSRPCFunc(Subscribe, "query"),
	"unsubscribe":     rpc.NewWSRPCFunc(Unsubscribe, "query"),
	"unsubscribe_all": rpc.NewWSRPCFunc(UnsubscribeAll, ""),

	"health":               rpc.NewRPCFunc(Health, ""),
	"status":               rpc.NewRPCFunc(Status, ""),
	"net_info":             rpc.NewRPCFunc(NetInfo, ""),
	"blockchain":           rpc.NewRPCFunc(BlockchainInfo, "minHeight,maxHeight"),
	"genesis":              rpc.NewRPCFunc(Genesis, ""),
	"block":                rpc.NewRPCFunc(Block, "height"),
	"block_by_hash":        rpc.NewRPCFunc(BlockByHash, "hash"),
	"block_results":        rpc.NewRPCFunc(BlockResults, "height"),
	"commit":               rpc.NewRPCFunc(Commit, "height"),
	"tx":                   rpc.NewRPCFunc(Tx, "hash,prove"),
	"tx_search":            rpc.NewRPCFunc(TxSearch, "query,prove,page,per_page,order_by"),
	"validators":           rpc.NewRPCFunc(Validators, "height,page,per_page"),
	"dump_consensus_state": rpc.NewRPCFunc(DumpConsensusState, ""),
	"consensus_state":      rpc.NewRPCFunc(ConsensusState, ""),
	"consensus_params":     rpc.NewRPCFunc(ConsensusParams, "height"),
	"unconfirmed_txs":      rpc.NewRPCFunc(UnconfirmedTxs, "limit"),
	"num_unconfirmed_txs":  rpc.NewRPCFunc(NumUnconfirmedTxs, ""),

	"broadcast_tx_commit": rpc.NewRPCFunc(BroadcastTxCommit, "tx"),
	"broadcast_tx_sync":   rpc.NewRPCFunc(BroadcastTxSync, "tx"),
	"broadcast_tx_async":  rpc.NewRPCFunc(BroadcastTxAsync, "tx"),

	"abci_query": rpc.NewRPCFunc(ABCIQuery, "path,data,height,prove"),
	"abci_info":  rpc.NewRPCFunc(ABCIInfo, ""),

	"broadcast_evidence": rpc.NewRPCFunc(BroadcastEvidence, "evidence"),
}

TODO: better system than "unsafe" prefix NOTE: Amino is registered in rpc/core/types/codec.go.

Functions

func ABCIInfo 

func ABCIInfo(ctx *rpctypes.Context) (*ctypes.ResultABCIInfo, error)

ABCIInfo gets some info about the application. More: https://docs.tendermint.com/master/rpc/#/ABCI/abci_info

func ABCIQuery 

func ABCIQuery(
	ctx *rpctypes.Context,
	path string,
	data bytes.HexBytes,
	height int64,
	prove bool,
) (*ctypes.ResultABCIQuery, error)

ABCIQuery queries the application for some information. More: https://docs.tendermint.com/master/rpc/#/ABCI/abci_query

func AddUnsafeRoutes 

func AddUnsafeRoutes()

func Block 

func Block(ctx *rpctypes.Context, heightPtr *int64) (*ctypes.ResultBlock, error)

Block gets block at a given height. If no height is provided, it will fetch the latest block. More: https://docs.tendermint.com/master/rpc/#/Info/block

func BlockByHash added in v0.33.0 

func BlockByHash(ctx *rpctypes.Context, hash []byte) (*ctypes.ResultBlock, error)

BlockByHash gets block by hash. More: https://docs.tendermint.com/master/rpc/#/Info/block_by_hash

func BlockResults 

func BlockResults(ctx *rpctypes.Context, heightPtr *int64) (*ctypes.ResultBlockResults, error)

BlockResults gets ABCIResults at a given height. If no height is provided, it will fetch results for the latest block.

Results are for the height of the block containing the txs. Thus response.results.deliver_tx[5] is the results of executing getBlock(h).Txs[5] More: https://docs.tendermint.com/master/rpc/#/Info/block_results

func BlockchainInfo 

func BlockchainInfo(ctx *rpctypes.Context, minHeight, maxHeight int64) (*ctypes.ResultBlockchainInfo, error)

BlockchainInfo gets block headers for minHeight <= height <= maxHeight. Block headers are returned in descending order (highest first). More: https://docs.tendermint.com/master/rpc/#/Info/blockchain

func BroadcastEvidence added in v0.32.2 

func BroadcastEvidence(ctx *rpctypes.Context, ev types.Evidence) (*ctypes.ResultBroadcastEvidence, error)

BroadcastEvidence broadcasts evidence of the misbehavior. More: https://docs.tendermint.com/master/rpc/#/Info/broadcast_evidence

func BroadcastTxAsync 

func BroadcastTxAsync(ctx *rpctypes.Context, tx types.Tx) (*ctypes.ResultBroadcastTx, error)

BroadcastTxAsync returns right away, with no response. Does not wait for CheckTx nor DeliverTx results. More: https://docs.tendermint.com/master/rpc/#/Tx/broadcast_tx_async

func BroadcastTxCommit 

func BroadcastTxCommit(ctx *rpctypes.Context, tx types.Tx) (*ctypes.ResultBroadcastTxCommit, error)

BroadcastTxCommit returns with the responses from CheckTx and DeliverTx. More: https://docs.tendermint.com/master/rpc/#/Tx/broadcast_tx_commit

func BroadcastTxSync 

func BroadcastTxSync(ctx *rpctypes.Context, tx types.Tx) (*ctypes.ResultBroadcastTx, error)

BroadcastTxSync returns with the response from CheckTx. Does not wait for DeliverTx result. More: https://docs.tendermint.com/master/rpc/#/Tx/broadcast_tx_sync

func Commit 

func Commit(ctx *rpctypes.Context, heightPtr *int64) (*ctypes.ResultCommit, error)

Commit gets block commit at a given height. If no height is provided, it will fetch the commit for the latest block. More: https://docs.tendermint.com/master/rpc/#/Info/commit

func ConsensusParams 

func ConsensusParams(ctx *rpctypes.Context, heightPtr *int64) (*ctypes.ResultConsensusParams, error)

ConsensusParams gets the consensus parameters at the given block height. If no height is provided, it will fetch the current consensus params. More: https://docs.tendermint.com/master/rpc/#/Info/consensus_params

func ConsensusState 

func ConsensusState(ctx *rpctypes.Context) (*ctypes.ResultConsensusState, error)

ConsensusState returns a concise summary of the consensus state. UNSTABLE More: https://docs.tendermint.com/master/rpc/#/Info/consensus_state

func DumpConsensusState 

func DumpConsensusState(ctx *rpctypes.Context) (*ctypes.ResultDumpConsensusState, error)

DumpConsensusState dumps consensus state. UNSTABLE More: https://docs.tendermint.com/master/rpc/#/Info/dump_consensus_state

func Genesis 

func Genesis(ctx *rpctypes.Context) (*ctypes.ResultGenesis, error)

Genesis returns genesis file. More: https://docs.tendermint.com/master/rpc/#/Info/genesis

func Health 

func Health(ctx *rpctypes.Context) (*ctypes.ResultHealth, error)

Health gets node health. Returns empty result (200 OK) on success, no response - in case of an error. More: https://docs.tendermint.com/master/rpc/#/Info/health

func NetInfo 

func NetInfo(ctx *rpctypes.Context) (*ctypes.ResultNetInfo, error)

NetInfo returns network info. More: https://docs.tendermint.com/master/rpc/#/Info/net_info

func NumUnconfirmedTxs 

func NumUnconfirmedTxs(ctx *rpctypes.Context) (*ctypes.ResultUnconfirmedTxs, error)

NumUnconfirmedTxs gets number of unconfirmed transactions. More: https://docs.tendermint.com/master/rpc/#/Info/num_unconfirmed_txs

func SetBlockStore 

func SetBlockStore(bs sm.BlockStore)

func SetConfig 

func SetConfig(c cfg.RPCConfig)

SetConfig sets an RPCConfig.

func SetConsensusReactor 

func SetConsensusReactor(conR *consensus.Reactor)

func SetConsensusState 

func SetConsensusState(cs Consensus)

func SetEventBus 

func SetEventBus(b *types.EventBus)

func SetEvidencePool 

func SetEvidencePool(evpool sm.EvidencePool)

func SetGenesisDoc 

func SetGenesisDoc(doc *types.GenesisDoc)

func SetLogger 

func SetLogger(l log.Logger)

func SetMempool 

func SetMempool(mem mempl.Mempool)

func SetP2PPeers 

func SetP2PPeers(p peers)

func SetP2PTransport 

func SetP2PTransport(t transport)

func SetProxyAppQuery 

func SetProxyAppQuery(appConn proxy.AppConnQuery)

func SetPubKey 

func SetPubKey(pk crypto.PubKey)

func SetStateDB 

func SetStateDB(db dbm.DB)

func SetTxIndexer 

func SetTxIndexer(indexer txindex.TxIndexer)

func Status 

func Status(ctx *rpctypes.Context) (*ctypes.ResultStatus, error)

Status returns Tendermint status including node info, pubkey, latest block hash, app hash, block height and time. More: https://docs.tendermint.com/master/rpc/#/Info/status

func Subscribe 

func Subscribe(ctx *rpctypes.Context, query string) (*ctypes.ResultSubscribe, error)

Subscribe for events via WebSocket. More: https://docs.tendermint.com/master/rpc/#/Websocket/subscribe

func Tx 

func Tx(ctx *rpctypes.Context, hash []byte, prove bool) (*ctypes.ResultTx, error)

Tx allows you to query the transaction results. `nil` could mean the transaction is in the mempool, invalidated, or was not sent in the first place. More: https://docs.tendermint.com/master/rpc/#/Info/tx

func TxSearch 

func TxSearch(ctx *rpctypes.Context, query string, prove bool, page, perPage int, orderBy string) (
	*ctypes.ResultTxSearch, error)

TxSearch allows you to query for multiple transactions results. It returns a list of transactions (maximum ?per_page entries) and the total count. More: https://docs.tendermint.com/master/rpc/#/Info/tx_search

func UnconfirmedTxs 

func UnconfirmedTxs(ctx *rpctypes.Context, limit int) (*ctypes.ResultUnconfirmedTxs, error)

UnconfirmedTxs gets unconfirmed transactions (maximum ?limit entries) including their number. More: https://docs.tendermint.com/master/rpc/#/Info/unconfirmed_txs

func UnsafeDialPeers 

func UnsafeDialPeers(ctx *rpctypes.Context, peers []string, persistent bool) (*ctypes.ResultDialPeers, error)

UnsafeDialPeers dials the given peers (comma-separated id@IP:PORT), optionally making them persistent.

func UnsafeDialSeeds 

func UnsafeDialSeeds(ctx *rpctypes.Context, seeds []string) (*ctypes.ResultDialSeeds, error)

UnsafeDialSeeds dials the given seeds (comma-separated id@IP:PORT).

func UnsafeFlushMempool 

func UnsafeFlushMempool(ctx *rpctypes.Context) (*ctypes.ResultUnsafeFlushMempool, error)

UnsafeFlushMempool removes all transactions from the mempool.

func UnsafeStartCPUProfiler 

func UnsafeStartCPUProfiler(ctx *rpctypes.Context, filename string) (*ctypes.ResultUnsafeProfile, error)

UnsafeStartCPUProfiler starts a pprof profiler using the given filename.

func UnsafeStopCPUProfiler 

func UnsafeStopCPUProfiler(ctx *rpctypes.Context) (*ctypes.ResultUnsafeProfile, error)

UnsafeStopCPUProfiler stops the running pprof profiler.

func UnsafeWriteHeapProfile 

func UnsafeWriteHeapProfile(ctx *rpctypes.Context, filename string) (*ctypes.ResultUnsafeProfile, error)

UnsafeWriteHeapProfile dumps a heap profile to the given filename.

func Unsubscribe 

func Unsubscribe(ctx *rpctypes.Context, query string) (*ctypes.ResultUnsubscribe, error)

Unsubscribe from events via WebSocket. More: https://docs.tendermint.com/master/rpc/#/Websocket/unsubscribe

func UnsubscribeAll 

func UnsubscribeAll(ctx *rpctypes.Context) (*ctypes.ResultUnsubscribe, error)

UnsubscribeAll from all events via WebSocket. More: https://docs.tendermint.com/master/rpc/#/Websocket/unsubscribe_all

func Validators 

func Validators(ctx *rpctypes.Context, heightPtr *int64, page, perPage int) (*ctypes.ResultValidators, error)

Validators gets the validator set at the given block height. If no height is provided, it will fetch the current validator set. Note the validators are sorted by their address - this is the canonical order for the validators in the set as used in computing their Merkle root. More: https://docs.tendermint.com/master/rpc/#/Info/validators

Types

type Consensus 

type Consensus interface {
	GetState() sm.State
	GetValidators() (int64, []*types.Validator)
	GetLastHeight() int64
	GetRoundStateJSON() ([]byte, error)
	GetRoundStateSimpleJSON() ([]byte, error)
}

Source Files

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