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125 lines
3.3 KiB
125 lines
3.3 KiB
package core
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import (
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"errors"
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"fmt"
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"sort"
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tmmath "github.com/tendermint/tendermint/libs/math"
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tmquery "github.com/tendermint/tendermint/libs/pubsub/query"
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ctypes "github.com/tendermint/tendermint/rpc/core/types"
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rpctypes "github.com/tendermint/tendermint/rpc/lib/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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// More: https://docs.tendermint.com/master/rpc/#/Info/tx
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func Tx(ctx *rpctypes.Context, 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 := r.Height
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index := 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(int(index)) // XXX: overflow on 32-bit machines
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}
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return &ctypes.ResultTx{
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Hash: hash,
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Height: height,
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Index: index,
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TxResult: r.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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// TxSearch allows you to query for multiple transactions results. It returns a
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// list of transactions (maximum ?per_page entries) and the total count.
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// More: https://docs.tendermint.com/master/rpc/#/Info/tx_search
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func TxSearch(ctx *rpctypes.Context, query string, prove bool, page, perPage int, orderBy string) (
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*ctypes.ResultTxSearch, 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, errors.New("transaction indexing is disabled")
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}
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q, err := tmquery.New(query)
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if err != nil {
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return nil, err
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}
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results, err := txIndexer.Search(ctx.Context(), q)
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if err != nil {
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return nil, err
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}
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// sort results (must be done before pagination)
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switch orderBy {
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case "desc":
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sort.Slice(results, func(i, j int) bool {
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if results[i].Height == results[j].Height {
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return results[i].Index > results[j].Index
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}
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return results[i].Height > results[j].Height
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})
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case "asc", "":
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sort.Slice(results, func(i, j int) bool {
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if results[i].Height == results[j].Height {
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return results[i].Index < results[j].Index
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}
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return results[i].Height < results[j].Height
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})
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default:
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return nil, errors.New("expected order_by to be either `asc` or `desc` or empty")
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}
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// paginate results
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totalCount := len(results)
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perPage = validatePerPage(perPage)
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page, err = validatePage(page, perPage, totalCount)
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if err != nil {
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return nil, err
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}
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skipCount := validateSkipCount(page, perPage)
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pageSize := tmmath.MinInt(perPage, totalCount-skipCount)
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apiResults := make([]*ctypes.ResultTx, 0, pageSize)
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for i := skipCount; i < skipCount+pageSize; i++ {
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r := results[i]
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var proof types.TxProof
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if prove {
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block := blockStore.LoadBlock(r.Height)
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proof = block.Data.Txs.Proof(int(r.Index)) // XXX: overflow on 32-bit machines
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}
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apiResults = append(apiResults, &ctypes.ResultTx{
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Hash: r.Tx.Hash(),
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Height: r.Height,
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Index: r.Index,
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TxResult: r.Result,
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Tx: r.Tx,
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Proof: proof,
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})
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}
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return &ctypes.ResultTxSearch{Txs: apiResults, TotalCount: totalCount}, nil
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}
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