parser

package
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Published: Feb 23, 2022 License: CC0-1.0 Imports: 13 Imported by: 1

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Functions

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Types

type Context

type Context struct {
	Codec    codec.Codec
	Node     node.Node
	Database database.Database
	Logger   logging.Logger

	Queue   types.HeightQueue
	Modules []modules.Module
}

Context represents the context that is shared among different workers

func NewContext

func NewContext(
	codec codec.Codec, queue types.HeightQueue,
	node node.Node, db database.Database, logger logging.Logger,
	modules []modules.Module,
) *Context

NewContext allows to build a new Worker Context instance

type Worker

type Worker struct {
	// contains filtered or unexported fields
}

Worker defines a job consumer that is responsible for getting and aggregating block and associated data and exporting it to a database.

func NewWorker

func NewWorker(index int, ctx *Context) Worker

NewWorker allows to create a new Worker implementation.

func (Worker) ExportBlock

func (w Worker) ExportBlock(
	b *tmctypes.ResultBlock, r *tmctypes.ResultBlockResults, txs []*types.Tx, vals *tmctypes.ResultValidators,
) error

ExportBlock accepts a finalized block and a corresponding set of transactions and persists them to the database along with attributable metadata. An error is returned if the write fails.

func (Worker) ExportCommit

func (w Worker) ExportCommit(commit *tmtypes.Commit, vals *tmctypes.ResultValidators) error

ExportCommit accepts a block commitment and a corresponding set of validators for the commitment and persists them to the database. An error is returned if any write fails or if there is any missing aggregated data.

func (Worker) ExportTxs

func (w Worker) ExportTxs(txs []*types.Tx) error

ExportTxs accepts a slice of transactions and persists then inside the database. An error is returned if the write fails.

func (Worker) HandleGenesis

func (w Worker) HandleGenesis(genesisDoc *tmtypes.GenesisDoc, appState map[string]json.RawMessage) error

HandleGenesis accepts a GenesisDoc and calls all the registered genesis handlers in the order in which they have been registered.

func (Worker) Process

func (w Worker) Process(height int64) error

Process fetches a block for a given height and associated metadata and export it to a database. It returns an error if any export process fails.

func (Worker) ProcessIfNotExists

func (w Worker) ProcessIfNotExists(height int64) error

ProcessIfNotExists defines the job consumer workflow. It will fetch a block for a given height and associated metadata and export it to a database if it does not exist yet. It returns an error if any export process fails.

func (Worker) SaveValidators

func (w Worker) SaveValidators(vals []*tmtypes.Validator) error

SaveValidators persists a list of Tendermint validators with an address and a consensus public key. An error is returned if the public key cannot be Bech32 encoded or if the DB write fails.

func (Worker) Start

func (w Worker) Start()

Start starts a worker by listening for new jobs (block heights) from the given worker queue. Any failed job is logged and re-enqueued.

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