package core
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"time"
|
|
|
|
"github.com/pkg/errors"
|
|
|
|
abci "github.com/tendermint/abci/types"
|
|
ctypes "github.com/tendermint/tendermint/rpc/core/types"
|
|
"github.com/tendermint/tendermint/types"
|
|
cmn "github.com/tendermint/tmlibs/common"
|
|
)
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// NOTE: tx should be signed, but this is only checked at the app level (not by Tendermint!)
|
|
|
|
// Returns right away, with no response
|
|
//
|
|
// ```shell
|
|
// curl 'localhost:46657/broadcast_tx_async?tx="123"'
|
|
// ```
|
|
//
|
|
// ```go
|
|
// client := client.NewHTTP("tcp://0.0.0.0:46657", "/websocket")
|
|
// result, err := client.BroadcastTxAsync("123")
|
|
// ```
|
|
//
|
|
// > The above command returns JSON structured like this:
|
|
//
|
|
// ```json
|
|
// {
|
|
// "error": "",
|
|
// "result": {
|
|
// "hash": "E39AAB7A537ABAA237831742DCE1117F187C3C52",
|
|
// "log": "",
|
|
// "data": "",
|
|
// "code": 0
|
|
// },
|
|
// "id": "",
|
|
// "jsonrpc": "2.0"
|
|
// }
|
|
// ```
|
|
//
|
|
// ### Query Parameters
|
|
//
|
|
// | Parameter | Type | Default | Required | Description |
|
|
// |-----------+------+---------+----------+-----------------|
|
|
// | tx | Tx | nil | true | The transaction |
|
|
func BroadcastTxAsync(tx types.Tx) (*ctypes.ResultBroadcastTx, error) {
|
|
err := mempool.CheckTx(tx, nil)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Error broadcasting transaction: %v", err)
|
|
}
|
|
return &ctypes.ResultBroadcastTx{Hash: tx.Hash()}, nil
|
|
}
|
|
|
|
// Returns with the response from CheckTx.
|
|
//
|
|
// ```shell
|
|
// curl 'localhost:46657/broadcast_tx_sync?tx="456"'
|
|
// ```
|
|
//
|
|
// ```go
|
|
// client := client.NewHTTP("tcp://0.0.0.0:46657", "/websocket")
|
|
// result, err := client.BroadcastTxSync("456")
|
|
// ```
|
|
//
|
|
// > The above command returns JSON structured like this:
|
|
//
|
|
// ```json
|
|
// {
|
|
// "jsonrpc": "2.0",
|
|
// "id": "",
|
|
// "result": {
|
|
// "code": 0,
|
|
// "data": "",
|
|
// "log": "",
|
|
// "hash": "0D33F2F03A5234F38706E43004489E061AC40A2E"
|
|
// },
|
|
// "error": ""
|
|
// }
|
|
// ```
|
|
//
|
|
// ### Query Parameters
|
|
//
|
|
// | Parameter | Type | Default | Required | Description |
|
|
// |-----------+------+---------+----------+-----------------|
|
|
// | tx | Tx | nil | true | The transaction |
|
|
func BroadcastTxSync(tx types.Tx) (*ctypes.ResultBroadcastTx, error) {
|
|
resCh := make(chan *abci.Response, 1)
|
|
err := mempool.CheckTx(tx, func(res *abci.Response) {
|
|
resCh <- res
|
|
})
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Error broadcasting transaction: %v", err)
|
|
}
|
|
res := <-resCh
|
|
r := res.GetCheckTx()
|
|
return &ctypes.ResultBroadcastTx{
|
|
Code: r.Code,
|
|
Data: r.Data,
|
|
Log: r.Log,
|
|
Hash: tx.Hash(),
|
|
}, nil
|
|
}
|
|
|
|
// CONTRACT: only returns error if mempool.BroadcastTx errs (ie. problem with the app)
|
|
// or if we timeout waiting for tx to commit.
|
|
// If CheckTx or DeliverTx fail, no error will be returned, but the returned result
|
|
// will contain a non-OK ABCI code.
|
|
//
|
|
// ```shell
|
|
// curl 'localhost:46657/broadcast_tx_commit?tx="789"'
|
|
// ```
|
|
//
|
|
// ```go
|
|
// client := client.NewHTTP("tcp://0.0.0.0:46657", "/websocket")
|
|
// result, err := client.BroadcastTxCommit("789")
|
|
// ```
|
|
//
|
|
// > The above command returns JSON structured like this:
|
|
//
|
|
// ```json
|
|
// {
|
|
// "error": "",
|
|
// "result": {
|
|
// "height": 26682,
|
|
// "hash": "75CA0F856A4DA078FC4911580360E70CEFB2EBEE",
|
|
// "deliver_tx": {
|
|
// "log": "",
|
|
// "data": "",
|
|
// "code": 0
|
|
// },
|
|
// "check_tx": {
|
|
// "log": "",
|
|
// "data": "",
|
|
// "code": 0
|
|
// }
|
|
// },
|
|
// "id": "",
|
|
// "jsonrpc": "2.0"
|
|
// }
|
|
// ```
|
|
//
|
|
// ### Query Parameters
|
|
//
|
|
// | Parameter | Type | Default | Required | Description |
|
|
// |-----------+------+---------+----------+-----------------|
|
|
// | tx | Tx | nil | true | The transaction |
|
|
func BroadcastTxCommit(tx types.Tx) (*ctypes.ResultBroadcastTxCommit, error) {
|
|
// subscribe to tx being committed in block
|
|
ctx, cancel := context.WithTimeout(context.Background(), subscribeTimeout)
|
|
defer cancel()
|
|
deliverTxResCh := make(chan interface{})
|
|
q := types.EventQueryTxFor(tx)
|
|
err := eventBus.Subscribe(ctx, "mempool", q, deliverTxResCh)
|
|
if err != nil {
|
|
err = errors.Wrap(err, "failed to subscribe to tx")
|
|
logger.Error("Error on broadcastTxCommit", "err", err)
|
|
return nil, fmt.Errorf("Error on broadcastTxCommit: %v", err)
|
|
}
|
|
defer eventBus.Unsubscribe(context.Background(), "mempool", q)
|
|
|
|
// broadcast the tx and register checktx callback
|
|
checkTxResCh := make(chan *abci.Response, 1)
|
|
err = mempool.CheckTx(tx, func(res *abci.Response) {
|
|
checkTxResCh <- res
|
|
})
|
|
if err != nil {
|
|
logger.Error("Error on broadcastTxCommit", "err", err)
|
|
return nil, fmt.Errorf("Error on broadcastTxCommit: %v", err)
|
|
}
|
|
checkTxRes := <-checkTxResCh
|
|
checkTxR := checkTxRes.GetCheckTx()
|
|
if checkTxR.Code != abci.CodeTypeOK {
|
|
// CheckTx failed!
|
|
return &ctypes.ResultBroadcastTxCommit{
|
|
CheckTx: *checkTxR,
|
|
DeliverTx: abci.ResponseDeliverTx{},
|
|
Hash: tx.Hash(),
|
|
}, nil
|
|
}
|
|
|
|
// Wait for the tx to be included in a block,
|
|
// timeout after something reasonable.
|
|
// TODO: configurable?
|
|
timer := time.NewTimer(60 * 2 * time.Second)
|
|
select {
|
|
case deliverTxResMsg := <-deliverTxResCh:
|
|
deliverTxRes := deliverTxResMsg.(types.EventDataTx)
|
|
// The tx was included in a block.
|
|
deliverTxR := deliverTxRes.Result
|
|
logger.Info("DeliverTx passed ", "tx", cmn.HexBytes(tx), "response", deliverTxR)
|
|
return &ctypes.ResultBroadcastTxCommit{
|
|
CheckTx: *checkTxR,
|
|
DeliverTx: deliverTxR,
|
|
Hash: tx.Hash(),
|
|
Height: deliverTxRes.Height,
|
|
}, nil
|
|
case <-timer.C:
|
|
logger.Error("failed to include tx")
|
|
return &ctypes.ResultBroadcastTxCommit{
|
|
CheckTx: *checkTxR,
|
|
DeliverTx: abci.ResponseDeliverTx{},
|
|
Hash: tx.Hash(),
|
|
}, fmt.Errorf("Timed out waiting for transaction to be included in a block")
|
|
}
|
|
}
|
|
|
|
// Get unconfirmed transactions (maximum ?limit entries) including their number.
|
|
//
|
|
// ```shell
|
|
// curl 'localhost:46657/unconfirmed_txs'
|
|
// ```
|
|
//
|
|
// ```go
|
|
// client := client.NewHTTP("tcp://0.0.0.0:46657", "/websocket")
|
|
// result, err := client.UnconfirmedTxs()
|
|
// ```
|
|
//
|
|
// > The above command returns JSON structured like this:
|
|
//
|
|
// ```json
|
|
// {
|
|
// "error": "",
|
|
// "result": {
|
|
// "txs": [],
|
|
// "n_txs": 0
|
|
// },
|
|
// "id": "",
|
|
// "jsonrpc": "2.0"
|
|
// }
|
|
//
|
|
// ### Query Parameters
|
|
//
|
|
// | Parameter | Type | Default | Required | Description |
|
|
// |-----------+------+---------+----------+--------------------------------------|
|
|
// | limit | int | 30 | false | Maximum number of entries (max: 100) |
|
|
// ```
|
|
func UnconfirmedTxs(limit int) (*ctypes.ResultUnconfirmedTxs, error) {
|
|
// reuse per_page validator
|
|
limit = validatePerPage(limit)
|
|
|
|
txs := mempool.Reap(limit)
|
|
return &ctypes.ResultUnconfirmedTxs{len(txs), txs}, nil
|
|
}
|
|
|
|
// Get number of unconfirmed transactions.
|
|
//
|
|
// ```shell
|
|
// curl 'localhost:46657/num_unconfirmed_txs'
|
|
// ```
|
|
//
|
|
// ```go
|
|
// client := client.NewHTTP("tcp://0.0.0.0:46657", "/websocket")
|
|
// result, err := client.UnconfirmedTxs()
|
|
// ```
|
|
//
|
|
// > The above command returns JSON structured like this:
|
|
//
|
|
// ```json
|
|
// {
|
|
// "error": "",
|
|
// "result": {
|
|
// "txs": null,
|
|
// "n_txs": 0
|
|
// },
|
|
// "id": "",
|
|
// "jsonrpc": "2.0"
|
|
// }
|
|
// ```
|
|
func NumUnconfirmedTxs() (*ctypes.ResultUnconfirmedTxs, error) {
|
|
return &ctypes.ResultUnconfirmedTxs{N: mempool.Size()}, nil
|
|
}
|