Add construction endpoints

server/rosetta/cosmos/client/client.go

@@ -64,7 +64,7 @@ type Client struct {
 
 	ir codectypes.InterfaceRegistry
 
-	client client.Context
+	clientCtx client.Context
 }
 
 // NewSingle instantiates a single network client
@@ -86,29 +86,53 @@ func NewSingle(grpcEndpoint, tendermintEndpoint string, optsFunc ...OptionFunc)
 
 	authClient := auth.NewQueryClient(grpcConn)
 	bankClient := bank.NewQueryClient(grpcConn)
+
 	// NodeURI and Client are set from here otherwise
 	// WitNodeURI will require to create a new client
 	// it's done here because WithNodeURI panics if
 	// connection to tendermint node fails
-	clientContext := client.Context{
+	clientCtx := client.Context{
 		Client:  tmRPC,
 		NodeURI: tendermintEndpoint,
 	}
-	clientContext = clientContext.
+	clientCtx = clientCtx.
 		WithJSONMarshaler(opts.cdc).
 		WithInterfaceRegistry(opts.interfaceRegistry).
 		WithTxConfig(tx.NewTxConfig(opts.cdc, tx.DefaultSignModes)).
 		WithAccountRetriever(auth.AccountRetriever{}).
 		WithBroadcastMode(flags.BroadcastBlock)
 
 	return &Client{
-		auth:   authClient,
-		bank:   bankClient,
-		client: clientContext,
-		ir:     opts.interfaceRegistry,
+		auth:      authClient,
+		bank:      bankClient,
+		clientCtx: clientCtx,
+		ir:        opts.interfaceRegistry,
 	}, nil
 }
 
+func (c *Client) AccountInfo(ctx context.Context, addr string, height *int64) (auth.AccountI, error) {
+	// if height is set, send height instruction to account
+	if height != nil {
+		strHeight := strconv.FormatInt(*height, 10)
+		ctx = metadata.AppendToOutgoingContext(ctx, grpctypes.GRPCBlockHeightHeader, strHeight)
+	}
+	// retrieve account info
+	accountInfo, err := c.auth.Account(ctx, &auth.QueryAccountRequest{
+		Address: addr,
+	})
+	if err != nil {
+		return nil, rosetta.FromGRPCToRosettaError(err)
+	}
+	// success
+	var account auth.AccountI
+	err = c.ir.UnpackAny(accountInfo.Account, &account)
+	if err != nil {
+		return nil, rosetta.WrapError(rosetta.ErrCodec, err.Error())
+	}
+
+	return account, nil
+}
+
 func (c *Client) Balances(ctx context.Context, addr string, height *int64) ([]sdk.Coin, error) {
 	if height != nil {
 		strHeight := strconv.FormatInt(*height, 10)
@@ -130,7 +154,7 @@ func (c *Client) BlockByHash(ctx context.Context, hash string) (*tmtypes.ResultB
 		return nil, nil, rosetta.WrapError(rosetta.ErrBadArgument, fmt.Sprintf("invalid block hash: %s", err))
 	}
 
-	block, err := c.client.Client.BlockByHash(ctx, bHash)
+	block, err := c.clientCtx.Client.BlockByHash(ctx, bHash)
 	if err != nil {
 		return nil, nil, rosetta.WrapError(rosetta.ErrUnknown, err.Error()) // can be either a connection error or bad argument?
 	}
@@ -144,7 +168,7 @@ func (c *Client) BlockByHash(ctx context.Context, hash string) (*tmtypes.ResultB
 
 // BlockByHeight returns the block and the transactions contained inside it given its height
 func (c *Client) BlockByHeight(ctx context.Context, height *int64) (*tmtypes.ResultBlock, []*rosetta.SdkTxWithHash, error) {
-	block, err := c.client.Client.Block(ctx, height)
+	block, err := c.clientCtx.Client.Block(ctx, height)
 	if err != nil {
 		return nil, nil, rosetta.WrapError(rosetta.ErrUnknown, err.Error())
 	}
@@ -167,12 +191,12 @@ func (c *Client) Coins(ctx context.Context) (sdk.Coins, error) {
 // ListTransactionsInBlock returns the list of the transactions in a block given its height
 func (c *Client) ListTransactionsInBlock(ctx context.Context, height int64) ([]*rosetta.SdkTxWithHash, error) {
 	txQuery := fmt.Sprintf(`tx.height=%d`, height)
-	txList, err := c.client.Client.TxSearch(ctx, txQuery, true, nil, nil, "")
+	txList, err := c.clientCtx.Client.TxSearch(ctx, txQuery, true, nil, nil, "")
 	if err != nil {
 		return nil, rosetta.WrapError(rosetta.ErrUnknown, err.Error())
 	}
 
-	sdkTxs, err := conversion.TmResultTxsToSdkTxs(c.client.TxConfig.TxDecoder(), txList.Txs)
+	sdkTxs, err := conversion.TmResultTxsToSdkTxs(c.clientCtx.TxConfig.TxDecoder(), txList.Txs)
 	if err != nil {
 		return nil, err
 	}
@@ -181,7 +205,7 @@ func (c *Client) ListTransactionsInBlock(ctx context.Context, height int64) ([]*
 
 // GetTx returns a transaction given its hash
 func (c *Client) GetTx(_ context.Context, hash string) (sdk.Tx, error) {
-	txResp, err := authclient.QueryTx(c.client, hash)
+	txResp, err := authclient.QueryTx(c.clientCtx, hash)
 	if err != nil {
 		return nil, rosetta.WrapError(rosetta.ErrUnknown, err.Error())
 	}
@@ -201,7 +225,7 @@ func (c *Client) GetUnconfirmedTx(_ context.Context, hash string) (sdk.Tx, error
 
 // Mempool returns the unconfirmed transactions in the mempool
 func (c *Client) Mempool(ctx context.Context) (*tmtypes.ResultUnconfirmedTxs, error) {
-	txs, err := c.client.Client.UnconfirmedTxs(ctx, nil)
+	txs, err := c.clientCtx.Client.UnconfirmedTxs(ctx, nil)
 	if err != nil {
 		return nil, rosetta.WrapError(rosetta.ErrUnknown, err.Error())
 	}
@@ -210,17 +234,25 @@ func (c *Client) Mempool(ctx context.Context) (*tmtypes.ResultUnconfirmedTxs, er
 
 // Peers gets the number of peers
 func (c *Client) Peers(ctx context.Context) ([]tmtypes.Peer, error) {
-	netInfo, err := c.client.Client.NetInfo(ctx)
+	netInfo, err := c.clientCtx.Client.NetInfo(ctx)
 	if err != nil {
 		return nil, rosetta.WrapError(rosetta.ErrUnknown, err.Error())
 	}
 	return netInfo.Peers, nil
 }
 
 func (c *Client) Status(ctx context.Context) (*tmtypes.ResultStatus, error) {
-	status, err := c.client.Client.Status(ctx)
+	status, err := c.clientCtx.Client.Status(ctx)
 	if err != nil {
 		return nil, rosetta.WrapError(rosetta.ErrUnknown, err.Error())
 	}
 	return status, err
 }
+
+func (c *Client) GetTxConfig() client.TxConfig {
+	return c.clientCtx.TxConfig
+}
+
+func (c *Client) PostTx(txBytes []byte) (res *sdk.TxResponse, err error) {
+	return c.clientCtx.BroadcastTx(txBytes)
+}

server/rosetta/cosmos/conversion/data.go

@@ -2,6 +2,8 @@ package conversion
 
 import (
 	"fmt"
+	"strconv"
+	"strings"
 	"time"
 
 	"github.com/coinbase/rosetta-sdk-go/types"
@@ -65,7 +67,7 @@ func ResultTxSearchToTransaction(txs []*rosetta.SdkTxWithHash) []*types.Transact
 
 // SdkTxResponseToOperations converts a tx response to operations
 func SdkTxToOperations(tx sdk.Tx, hasError, withoutStatus bool) []*types.Operation {
-	return toOperations(tx.GetMsgs(), hasError, withoutStatus)
+	return ToOperations(tx.GetMsgs(), hasError, withoutStatus)
 }
 
 // TendermintTxsToTxIdentifiers converts a tendermint raw transaction into a rosetta tx identifier
@@ -85,7 +87,7 @@ func TendermintBlockToBlockIdentifier(block *tmcoretypes.ResultBlock) *types.Blo
 	}
 }
 
-func toOperations(msgs []sdk.Msg, hasError bool, withoutStatus bool) []*types.Operation {
+func ToOperations(msgs []sdk.Msg, hasError bool, withoutStatus bool) []*types.Operation {
 	var operations []*types.Operation
 	for i, msg := range msgs {
 		switch msg.Type() { // nolint
@@ -132,6 +134,41 @@ func toOperations(msgs []sdk.Msg, hasError bool, withoutStatus bool) []*types.Op
 	return operations
 }
 
+// GetTransferTxDataFromOperations extracts the from and to addresses from a list of operations.
+// We assume that it comes formated in the correct way. And that the balance of the sender is the same
+// as the receiver operations.
+func GetTransferTxDataFromOperations(ops []*types.Operation) (*banktypes.MsgSend, error) {
+	var (
+		from, to sdk.AccAddress
+		sendAmt  sdk.Coin
+		err      error
+	)
+
+	for _, op := range ops {
+		if strings.HasPrefix(op.Amount.Value, "-") {
+			from, err = sdk.AccAddressFromBech32(op.Account.Address)
+			if err != nil {
+				return nil, err
+			}
+		} else {
+			to, err = sdk.AccAddressFromBech32(op.Account.Address)
+			if err != nil {
+				return nil, err
+			}
+
+			amount, err := strconv.ParseInt(op.Amount.Value, 10, 64)
+			if err != nil {
+				return nil, fmt.Errorf("invalid amount")
+			}
+
+			sendAmt = sdk.NewCoin(op.Amount.Currency.Symbol, sdk.NewInt(amount))
+		}
+	}
+
+	msg := banktypes.NewMsgSend(from, to, sdk.NewCoins(sendAmt))
+	return msg, nil
+}
+
 // TmPeersToRosettaPeers converts tendermint peers to rosetta ones
 func TmPeersToRosettaPeers(peers []tmcoretypes.Peer) []*types.Peer {
 	converted := make([]*types.Peer, len(peers))

server/rosetta/errors.go

@@ -128,7 +128,13 @@ var (
 	// ErrUnsupportedCurve is returned when the curve specified is not supported
 	ErrUnsupportedCurve = NewError(15, "unsupported curve, expected secp256k1", false)
 	// ErrInvalidPubkey is returned when the public key is invalid
-	ErrInvalidPubkey = NewError(8, "invalid pubkey", false)
+	ErrInvalidPubkey      = NewError(8, "invalid pubkey", false)
+	ErrInterpreting       = NewError(1, "error interpreting data from node", false)
+	ErrInvalidAddress     = NewError(7, "invalid address", false)
+	ErrInvalidMemo        = NewError(11, "invalid memo", false)
+	ErrInvalidOperation   = NewError(4, "invalid operation", false)
+	ErrInvalidRequest     = NewError(6, "invalid request", false)
+	ErrInvalidTransaction = NewError(5, "invalid transaction", false)
 )
 
 // AllowedErrors lists all the rosetta allowed errors