client

package
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 Go to latest Published: Jul 25, 2020 License: Apache-2.0 Imports: 31 Imported by: 0

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Index

Constants

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const ClientContextKey = sdk.ContextKey("client.context")

ClientContextKey defines the context key used to retrieve a client.Context from a command's Context.

Variables

This section is empty.

Functions

func CheckTendermintError 

func CheckTendermintError(err error, txBytes []byte) *sdk.TxResponse

CheckTendermintError checks if the error returned from BroadcastTx is a Tendermint error that is returned before the tx is submitted due to precondition checks that failed. If an Tendermint error is detected, this function returns the correct code back in TxResponse.

TODO: Avoid brittle string matching in favor of error matching. This requires a change to Tendermint's RPCError type to allow retrieval or matching against a concrete error type.

func ErrInvalidAccount 

func ErrInvalidAccount(addr sdk.AccAddress) error

ErrInvalidAccount returns a standardized error reflecting that a given account address does not exist.

func ErrVerifyCommit 

func ErrVerifyCommit(height int64) error

ErrVerifyCommit returns a common error reflecting that the blockchain commit at a given height can't be verified. The reason is that the base checkpoint of the certifier is newer than the given height

func GetFromFields 

func GetFromFields(kr keyring.Keyring, from string, genOnly bool) (sdk.AccAddress, string, error)

GetFromFields returns a from account address and Keybase name given either an address or key name. If genOnly is true, only a valid Bech32 cosmos address is returned.

func Paginate 

func Paginate(numObjs, page, limit, defLimit int) (start, end int)

Paginate returns the correct starting and ending index for a paginated query, given that client provides a desired page and limit of objects and the handler provides the total number of objects. The start page is assumed to be 1-indexed. If the start page is invalid, non-positive values are returned signaling the request is invalid; it returns non-positive values if limit is non-positive and defLimit is negative.

func ReadPageRequest 

func ReadPageRequest(flagSet *pflag.FlagSet) (*query.PageRequest, error)

ReadPageRequest reads and builds the necessary page request flags for pagination.

func SetCmdClientContext 

func SetCmdClientContext(cmd *cobra.Command, clientCtx Context) error

SetCmdClientContext sets a command's Context value to the provided argument.

func SetCmdClientContextHandler 

func SetCmdClientContextHandler(clientCtx Context, cmd *cobra.Command) (err error)

SetCmdClientContextHandler is to be used in a command pre-hook execution to read flags that populate a Context and sets that to the command's Context.

func ValidateCmd 

func ValidateCmd(cmd *cobra.Command, args []string) error

ValidateCmd returns unknown command error or Help display if help flag set

Types

type AccountRetriever 

type AccountRetriever interface {
	EnsureExists(nodeQuerier NodeQuerier, addr types.AccAddress) error
	GetAccountNumberSequence(nodeQuerier NodeQuerier, addr types.AccAddress) (accNum uint64, accSeq uint64, err error)
}

AccountRetriever defines the interfaces required by transactions to ensure an account exists and to be able to query for account fields necessary for signing.

type Context 

type Context struct {
	FromAddress       sdk.AccAddress
	Client            rpcclient.Client
	ChainID           string
	JSONMarshaler     codec.JSONMarshaler
	InterfaceRegistry codectypes.InterfaceRegistry
	Input             io.Reader
	Keyring           keyring.Keyring
	Output            io.Writer
	OutputFormat      string
	Height            int64
	HomeDir           string
	From              string
	BroadcastMode     string
	FromName          string
	UseLedger         bool
	Simulate          bool
	GenerateOnly      bool
	Offline           bool
	SkipConfirm       bool
	TxConfig          TxConfig
	AccountRetriever  AccountRetriever
	NodeURI           string

	// TODO: Deprecated (remove).
	Codec *codec.Codec
}

Context implements a typical context created in SDK modules for transaction handling and queries.

func GetClientContextFromCmd 

func GetClientContextFromCmd(cmd *cobra.Command) Context

GetClientContextFromCmd returns a Context from a command or an empty Context if it has not been set.

func ReadPersistentCommandFlags 

func ReadPersistentCommandFlags(clientCtx Context, flagSet *pflag.FlagSet) (Context, error)

ReadPersistentCommandFlags returns a Context with fields set for "persistent" flags that do not necessarily change with context. These must be checked if the caller explicitly changed the values.

func ReadQueryCommandFlags 

func ReadQueryCommandFlags(clientCtx Context, flagSet *pflag.FlagSet) (Context, error)

ReadQueryCommandFlags returns an updated Context with fields set based on flags defined in GetCommands. An error is returned if any flag query fails.

Certain flags are naturally command and context dependent, so for these flags we do not check if they've been explicitly set by the caller. Other flags can be considered "persistent" (e.g. KeyBase or Client) and these should be checked if the caller explicitly set those.

func ReadTxCommandFlags 

func ReadTxCommandFlags(clientCtx Context, flagSet *pflag.FlagSet) (Context, error)

ReadTxCommandFlags returns an updated Context with fields set based on flags defined in PostCommands. An error is returned if any flag query fails.

Certain flags are naturally command and context dependent, so for these flags we do not check if they've been explicitly set by the caller. Other flags can be considered "persistent" (e.g. KeyBase or Client) and these should be checked if the caller explicitly set those.

func (Context) BroadcastTx 

func (ctx Context) BroadcastTx(txBytes []byte) (res *sdk.TxResponse, err error)

BroadcastTx broadcasts a transactions either synchronously or asynchronously based on the context parameters. The result of the broadcast is parsed into an intermediate structure which is logged if the context has a logger defined.

func (Context) BroadcastTxAsync 

func (ctx Context) BroadcastTxAsync(txBytes []byte) (*sdk.TxResponse, error)

BroadcastTxAsync broadcasts transaction bytes to a Tendermint node asynchronously (i.e. returns immediately).

func (Context) BroadcastTxCommit 

func (ctx Context) BroadcastTxCommit(txBytes []byte) (*sdk.TxResponse, error)

BroadcastTxCommit broadcasts transaction bytes to a Tendermint node and waits for a commit. An error is only returned if there is no RPC node connection or if broadcasting fails.

NOTE: This should ideally not be used as the request may timeout but the tx may still be included in a block. Use BroadcastTxAsync or BroadcastTxSync instead.

func (Context) BroadcastTxSync 

func (ctx Context) BroadcastTxSync(txBytes []byte) (*sdk.TxResponse, error)

BroadcastTxSync broadcasts transaction bytes to a Tendermint node synchronously (i.e. returns after CheckTx execution).

func (Context) GetFromAddress 

func (ctx Context) GetFromAddress() sdk.AccAddress

GetFromAddress returns the from address from the context's name.

func (Context) GetFromName 

func (ctx Context) GetFromName() string

GetFromName returns the key name for the current context.

func (Context) GetNode 

func (ctx Context) GetNode() (rpcclient.Client, error)

GetNode returns an RPC client. If the context's client is not defined, an error is returned.

func (Context) Invoke 

func (ctx Context) Invoke(_ gocontext.Context, method string, args, reply interface{}, _ ...grpc.CallOption) error

Invoke implements the grpc ClientConn.Invoke method

func (Context) NewStream 

func (Context) NewStream(gocontext.Context, *grpc.StreamDesc, string, ...grpc.CallOption) (grpc.ClientStream, error)

NewStream implements the grpc ClientConn.NewStream method

func (Context) PrintOutput 

func (ctx Context) PrintOutput(toPrint interface{}) error

PrintOutput outputs toPrint to the ctx.Output based on ctx.OutputFormat which is either text or json. If text, toPrint will be YAML encoded. Otherwise, toPrint will be JSON encoded using ctx.JSONMarshaler. An error is returned upon failure.

func (Context) Query 

func (ctx Context) Query(path string) ([]byte, int64, error)

Query performs a query to a Tendermint node with the provided path. It returns the result and height of the query upon success or an error if the query fails.

func (Context) QueryABCI 

func (ctx Context) QueryABCI(req abci.RequestQuery) (abci.ResponseQuery, error)

QueryABCI performs a query to a Tendermint node with the provide RequestQuery. It returns the ResultQuery obtained from the query.

func (Context) QueryStore 

func (ctx Context) QueryStore(key tmbytes.HexBytes, storeName string) ([]byte, int64, error)

QueryStore performs a query to a Tendermint node with the provided key and store name. It returns the result and height of the query upon success or an error if the query fails.

func (Context) QuerySubspace 

func (ctx Context) QuerySubspace(subspace []byte, storeName string) (res []sdk.KVPair, height int64, err error)

QuerySubspace performs a query to a Tendermint node with the provided store name and subspace. It returns key value pair and height of the query upon success or an error if the query fails.

func (Context) QueryWithData 

func (ctx Context) QueryWithData(path string, data []byte) ([]byte, int64, error)

QueryWithData performs a query to a Tendermint node with the provided path and a data payload. It returns the result and height of the query upon success or an error if the query fails.

func (Context) WithAccountRetriever 

func (ctx Context) WithAccountRetriever(retriever AccountRetriever) Context

WithAccountRetriever returns the context with an updated AccountRetriever

func (Context) WithBroadcastMode 

func (ctx Context) WithBroadcastMode(mode string) Context

WithBroadcastMode returns a copy of the context with an updated broadcast mode.

func (Context) WithChainID 

func (ctx Context) WithChainID(chainID string) Context

WithChainID returns a copy of the context with an updated chain ID.

func (Context) WithClient 

func (ctx Context) WithClient(client rpcclient.Client) Context

WithClient returns a copy of the context with an updated RPC client instance.

func (Context) WithCodec 

func (ctx Context) WithCodec(cdc *codec.Codec) Context

WithCodec returns a copy of the context with an updated codec. TODO: Deprecated (remove).

func (Context) WithFrom 

func (ctx Context) WithFrom(from string) Context

WithFrom returns a copy of the context with an updated from address or name.

func (Context) WithFromAddress 

func (ctx Context) WithFromAddress(addr sdk.AccAddress) Context

WithFromAddress returns a copy of the context with an updated from account address.

func (Context) WithFromName 

func (ctx Context) WithFromName(name string) Context

WithFromName returns a copy of the context with an updated from account name.

func (Context) WithGenerateOnly 

func (ctx Context) WithGenerateOnly(generateOnly bool) Context

WithGenerateOnly returns a copy of the context with updated GenerateOnly value

func (Context) WithHeight 

func (ctx Context) WithHeight(height int64) Context

WithHeight returns a copy of the context with an updated height.

func (Context) WithHomeDir 

func (ctx Context) WithHomeDir(dir string) Context

WithHomeDir returns a copy of the Context with HomeDir set.

func (Context) WithInput 

func (ctx Context) WithInput(r io.Reader) Context

WithInput returns a copy of the context with an updated input.

func (Context) WithInterfaceRegistry 

func (ctx Context) WithInterfaceRegistry(interfaceRegistry codectypes.InterfaceRegistry) Context

WithInterfaceRegistry returns the context with an updated InterfaceRegistry

func (Context) WithJSONMarshaler 

func (ctx Context) WithJSONMarshaler(m codec.JSONMarshaler) Context

WithJSONMarshaler returns a copy of the Context with an updated JSONMarshaler.

func (Context) WithKeyring 

func (ctx Context) WithKeyring(k keyring.Keyring) Context

WithKeyring returns a copy of the context with an updated keyring.

func (Context) WithNodeURI 

func (ctx Context) WithNodeURI(nodeURI string) Context

WithNodeURI returns a copy of the context with an updated node URI.

func (Context) WithOffline 

func (ctx Context) WithOffline(offline bool) Context

WithOffline returns a copy of the context with updated Offline value.

func (Context) WithOutput 

func (ctx Context) WithOutput(w io.Writer) Context

WithOutput returns a copy of the context with an updated output writer (e.g. stdout).

func (Context) WithOutputFormat 

func (ctx Context) WithOutputFormat(format string) Context

WithOutputFormat returns a copy of the context with an updated OutputFormat field.

func (Context) WithSimulation 

func (ctx Context) WithSimulation(simulate bool) Context

WithSimulation returns a copy of the context with updated Simulate value

func (Context) WithSkipConfirmation 

func (ctx Context) WithSkipConfirmation(skip bool) Context

WithSkipConfirmation returns a copy of the context with an updated SkipConfirm value.

func (Context) WithTxConfig 

func (ctx Context) WithTxConfig(generator TxConfig) Context

WithTxConfig returns the context with an updated TxConfig

func (Context) WithUseLedger 

func (ctx Context) WithUseLedger(useLedger bool) Context

WithUseLedger returns a copy of the context with an updated UseLedger flag.

type NodeQuerier 

type NodeQuerier interface {
	// QueryWithData performs a query to a Tendermint node with the provided path
	// and a data payload. It returns the result and height of the query upon success
	// or an error if the query fails.
	QueryWithData(path string, data []byte) ([]byte, int64, error)
}

NodeQuerier is an interface that is satisfied by types that provide the QueryWithData method

type TestAccountRetriever 

type TestAccountRetriever struct {
	Accounts map[string]struct {
		Address sdk.AccAddress
		Num     uint64
		Seq     uint64
	}
}

TestAccountRetriever is an AccountRetriever that can be used in unit tests

func (TestAccountRetriever) EnsureExists 

func (t TestAccountRetriever) EnsureExists(_ NodeQuerier, addr sdk.AccAddress) error

EnsureExists implements AccountRetriever.EnsureExists

func (TestAccountRetriever) GetAccountNumberSequence 

func (t TestAccountRetriever) GetAccountNumberSequence(_ NodeQuerier, addr sdk.AccAddress) (accNum uint64, accSeq uint64, err error)

GetAccountNumberSequence implements AccountRetriever.GetAccountNumberSequence

type TxBuilder 

type TxBuilder interface {
	GetTx() signing.SigFeeMemoTx

	SetMsgs(msgs ...sdk.Msg) error
	SetSignatures(signatures ...signingtypes.SignatureV2) error
	SetMemo(memo string)
	SetFeeAmount(amount sdk.Coins)
	SetGasLimit(limit uint64)
}

TxBuilder defines an interface which an application-defined concrete transaction type must implement. Namely, it must be able to set messages, generate signatures, and provide canonical bytes to sign over. The transaction must also know how to encode itself.

type TxConfig 

type TxConfig interface {
	NewTxBuilder() TxBuilder
	WrapTxBuilder(sdk.Tx) (TxBuilder, error)
	SignModeHandler() signing.SignModeHandler

	TxEncoder() sdk.TxEncoder
	TxDecoder() sdk.TxDecoder
	TxJSONEncoder() sdk.TxEncoder
	TxJSONDecoder() sdk.TxDecoder
}

TxConfig defines an interface a client can utilize to generate an application-defined concrete transaction type. The type returned must implement TxBuilder.

Source Files

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Directories

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docs
statik
Package statik contains static assets.
 Package statik contains static assets.

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