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Package actions provides the infrastructure for defining and executing actions (code that is triggered in response to an client request) on horizon.

Package assets is a simple helper package to help convert to/from xdr.AssetType values

Package codes is a helper package to help convert to transaction and operation result codes to strings used in horizon.

Package requestid provides functions to support embedded and retrieving a request id from a go context tree

Package db2 is the replacement for db.

Package core contains database record definitions useable for reading rows from a Stellar Core db

Package history contains database record definitions useable for reading rows from a the history portion of horizon's database

Package sqx contains utilities and extensions for the squirrel package which is used by horizon to generate sql statements.

Package ingest contains the ingestion system for horizon.

Package participants contains functions to derive a set of "participant" addresses for various data structures in the Stellar network's ledger.

Package ledger provides useful utilities concerning ledgers within stellar, specifically a central location to store a cached snapshot of the state of both horizon's and stellar-core's view of the ledger.

Package log provides the logging facilities used for horizon.

Package paths provides utilities and facilities for payment paths as needed by horizon.

Package reap contains the history reaping subsystem for horizon.

This package contains the Server Sent Events implementation used by horizon.

Package resource contains the type definitions for all of horizons response resources.

Package simplepath provides an implementation of paths.Finder that performs a breadth first search for paths against a stellar-core's database

Package test contains simple test helpers that should not have any dependencies on horizon's packages.

Package db provides helpers to connect to test databases.

Package txsub provides the machinery that horizon uses to submit transactions to the stellar network and track their progress.

Package results provides an implementation of the txsub.ResultProvider interface backed using the SQL databases used by both stellar core and horizon

Package sequence providers helpers to manage sequence numbers on behalf of horizon clients.

Package utf8 contains utilities for working with utf8 data.