context

package
v0.0.3 Latest Latest
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 Go to latest Published: Nov 25, 2021 License: Apache-2.0 Imports: 27 Imported by: 0

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Index

Constants

View Source 
const (

	// DefaultVerifierCacheSize defines the default Tendermint cache size.
	DefaultVerifierCacheSize = 10
)

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 CreateVerifier 

func CreateVerifier(ctx CLIContext, cacheSize int) (tmlite.Verifier, error)

CreateVerifier returns a Tendermint verifier from a CLIContext object and cache size. An error is returned if the CLIContext is missing required values or if the verifier could not be created. A CLIContext must at the very least have the chain ID and home directory set. If the CLIContext has TrustNode enabled, no verifier will be created.

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(input io.Reader, 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.

Types

type AccountRetriever added in v0.0.2 

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 CLIContext 

type CLIContext struct {
	FromAddress   sdk.AccAddress
	Client        rpcclient.Client
	ChainID       string
	Keybase       keys.Keybase
	Input         io.Reader
	Output        io.Writer
	OutputFormat  string
	Height        int64
	HomeDir       string
	NodeURI       string
	From          string
	BroadcastMode string
	Verifier      tmlite.Verifier
	FromName      string
	Codec         *codec.Codec
	TrustNode     bool
	UseLedger     bool
	Simulate      bool
	GenerateOnly  bool
	Indent        bool
	SkipConfirm   bool
}

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

func NewCLIContext 

func NewCLIContext() CLIContext

NewCLIContext returns a new initialized CLIContext with parameters from the command line using Viper.

func NewCLIContextWithFrom 

func NewCLIContextWithFrom(from string) CLIContext

NewCLIContextWithFrom returns a new initialized CLIContext with parameters from the command line using Viper. It takes a key name or address and populates the FromName and FromAddress field accordingly. It will also create Tendermint verifier using the chain ID, home directory and RPC URI provided by the command line. If using a CLIContext in tests or any non CLI-based environment, the verifier will not be created and will be set as nil because FlagTrustNode must be set.

func NewCLIContextWithInput 

func NewCLIContextWithInput(input io.Reader) CLIContext

NewCLIContextWithInput returns a new initialized CLIContext with a io.Reader and parameters from the command line using Viper.

func NewCLIContextWithInputAndFrom 

func NewCLIContextWithInputAndFrom(input io.Reader, from string) CLIContext

NewCLIContextWithInputAndFrom returns a new initialized CLIContext with parameters from the command line using Viper. It takes a io.Reader and and key name or address and populates the FromName and FromAddress field accordingly. It will also create Tendermint verifier using the chain ID, home directory and RPC URI provided by the command line. If using a CLIContext in tests or any non CLI-based environment, the verifier will not be created and will be set as nil because FlagTrustNode must be set.

func (CLIContext) BroadcastTx 

func (ctx CLIContext) 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 (CLIContext) BroadcastTxAsync 

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

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

func (CLIContext) BroadcastTxCommit 

func (ctx CLIContext) 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 (CLIContext) BroadcastTxSync 

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

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

func (CLIContext) GetFromAddress 

func (ctx CLIContext) GetFromAddress() sdk.AccAddress

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

func (CLIContext) GetFromName 

func (ctx CLIContext) GetFromName() string

GetFromName returns the key name for the current context.

func (CLIContext) GetNode 

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

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

func (CLIContext) PrintOutput 

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

PrintOutput prints output while respecting output and indent flags NOTE: pass in marshalled structs that have been unmarshaled because this function will panic on marshaling errors

func (CLIContext) Query 

func (ctx CLIContext) 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 (CLIContext) QueryStore 

func (ctx CLIContext) 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 (CLIContext) QuerySubspace 

func (ctx CLIContext) 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 (CLIContext) QueryWithData 

func (ctx CLIContext) 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 (CLIContext) Verify 

func (ctx CLIContext) Verify(height int64) (tmtypes.SignedHeader, error)

Verify verifies the consensus proof at given height.

func (CLIContext) WithBroadcastMode 

func (ctx CLIContext) WithBroadcastMode(mode string) CLIContext

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

func (CLIContext) WithChainID 

func (ctx CLIContext) WithChainID(chainID string) CLIContext

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

func (CLIContext) WithClient 

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

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

func (CLIContext) WithCodec 

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

WithCodec returns a copy of the context with an updated codec.

func (CLIContext) WithFrom 

func (ctx CLIContext) WithFrom(from string) CLIContext

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

func (CLIContext) WithFromAddress 

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

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

func (CLIContext) WithFromName 

func (ctx CLIContext) WithFromName(name string) CLIContext

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

func (CLIContext) WithGenerateOnly 

func (ctx CLIContext) WithGenerateOnly(generateOnly bool) CLIContext

WithGenerateOnly returns a copy of the context with updated GenerateOnly value

func (CLIContext) WithHeight 

func (ctx CLIContext) WithHeight(height int64) CLIContext

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

func (CLIContext) WithInput 

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

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

func (CLIContext) WithNodeURI 

func (ctx CLIContext) WithNodeURI(nodeURI string) CLIContext

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

func (CLIContext) WithOutput 

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

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

func (CLIContext) WithSimulation 

func (ctx CLIContext) WithSimulation(simulate bool) CLIContext

WithSimulation returns a copy of the context with updated Simulate value

func (CLIContext) WithTrustNode 

func (ctx CLIContext) WithTrustNode(trustNode bool) CLIContext

WithTrustNode returns a copy of the context with an updated TrustNode flag.

func (CLIContext) WithUseLedger 

func (ctx CLIContext) WithUseLedger(useLedger bool) CLIContext

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

func (CLIContext) WithVerifier 

func (ctx CLIContext) WithVerifier(verifier tmlite.Verifier) CLIContext

WithVerifier returns a copy of the context with an updated Verifier.

type ClientFee added in v0.0.2 

type ClientFee interface {
	types.Fee
	SetGas(uint64)
	SetAmount(types.Coins)
}

type ClientSignature added in v0.0.2 

type ClientSignature interface {
	types.Signature
	SetPubKey(crypto.PubKey) error
	SetSignature([]byte)
}

type NodeQuerier added in v0.0.2 

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 TxBuilder added in v0.0.2 

type TxBuilder interface {
	GetTx() types.Tx

	SetMsgs(...types.Msg) error
	GetSignatures() []types.Signature
	SetSignatures(...ClientSignature) error
	GetFee() types.Fee
	SetFee(ClientFee) error
	GetMemo() string
	SetMemo(string)

	// CanonicalSignBytes returns the canonical sign bytes to sign over, given a
	// chain ID, along with an account and sequence number.
	CanonicalSignBytes(cid string, num, seq uint64) ([]byte, error)
}

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 TxGenerator added in v0.0.2 

type TxGenerator interface {
	NewTx() TxBuilder
	NewFee() ClientFee
	NewSignature() ClientSignature
	MarshalTx(tx types.Tx) ([]byte, error)
}

TxGenerator 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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