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101 lines
2.5 KiB
101 lines
2.5 KiB
package core
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import (
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"fmt"
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ctypes "github.com/tendermint/tendermint/rpc/core/types"
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"github.com/tendermint/tendermint/state/txindex/null"
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"github.com/tendermint/tendermint/types"
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)
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// Tx allows you to query the transaction results. `nil` could mean the
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// transaction is in the mempool, invalidated, or was not sent in the first
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// place.
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//
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// ```shell
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// curl "localhost:46657/tx?hash=0x2B8EC32BA2579B3B8606E42C06DE2F7AFA2556EF"
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// ```
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//
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// ```go
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// client := client.NewHTTP("tcp://0.0.0.0:46657", "/websocket")
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// tx, err := client.Tx([]byte("2B8EC32BA2579B3B8606E42C06DE2F7AFA2556EF"), true)
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// ```
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//
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// > The above command returns JSON structured like this:
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//
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// ```json
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// {
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// "error": "",
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// "result": {
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// "proof": {
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// "Proof": {
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// "aunts": []
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// },
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// "Data": "YWJjZA==",
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// "RootHash": "2B8EC32BA2579B3B8606E42C06DE2F7AFA2556EF",
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// "Total": 1,
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// "Index": 0
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// },
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// "tx": "YWJjZA==",
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// "tx_result": {
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// "log": "",
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// "data": "",
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// "code": 0
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// },
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// "index": 0,
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// "height": 52
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// },
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// "id": "",
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// "jsonrpc": "2.0"
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// }
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// ```
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//
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// Returns a transaction matching the given transaction hash.
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//
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// ### Query Parameters
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//
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// | Parameter | Type | Default | Required | Description |
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// |-----------+--------+---------+----------+-----------------------------------------------------------|
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// | hash | []byte | nil | true | The transaction hash |
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// | prove | bool | false | false | Include a proof of the transaction inclusion in the block |
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//
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// ### Returns
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//
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// - `proof`: the `types.TxProof` object
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// - `tx`: `[]byte` - the transaction
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// - `tx_result`: the `abci.Result` object
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// - `index`: `int` - index of the transaction
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// - `height`: `int` - height of the block where this transaction was in
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func Tx(hash []byte, prove bool) (*ctypes.ResultTx, error) {
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// if index is disabled, return error
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if _, ok := txIndexer.(*null.TxIndex); ok {
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return nil, fmt.Errorf("Transaction indexing is disabled.")
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}
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r, err := txIndexer.Get(hash)
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if err != nil {
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return nil, err
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}
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if r == nil {
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return nil, fmt.Errorf("Tx (%X) not found", hash)
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}
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height := int(r.Height) // XXX
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index := int(r.Index)
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var proof types.TxProof
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if prove {
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block := blockStore.LoadBlock(height)
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proof = block.Data.Txs.Proof(index)
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}
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return &ctypes.ResultTx{
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Height: height,
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Index: index,
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TxResult: r.Result.Result(),
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Tx: r.Tx,
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Proof: proof,
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}, nil
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}
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