evmrelay::examples¶

Functions¶

	Name
std::optional< discv4::ChainDiscoveryDefault >	parse_chain_discovery_default(const std::string_view value)
std::optional< discv4::DiscoveryForkFilter >	parse_discovery_fork_filter(const std::string_view value)
std::optional< boost::json::object >	load_chain_config_root(const std::string & argv0)
std::optional< boost::json::object >	load_chain_config_entry(const std::string & chain, const std::string & argv0)
std::vector< std::string >	load_default_all_chains(const std::string & argv0)
std::optional< std::array< uint8_t, 4U > >	load_fork_hash(const std::string & chain, const std::string & argv0) Load the latest fork hash from generated chain_enodes.json/.gz.
std::optional< discv4::ChainPeerConfig >	load_chain_peer_config(const std::string & chain_name, const std::string & argv0, const std::string & chain_peers_json_path, const std::string & chain_peers_url, bool chain_peers_url_enabled)
std::optional< std::string >	load_enr_tree_url(const std::string & chain, const std::string & argv0) Return the configured EIP-1459 ENR-tree root URL for `chain`.
void	apply_chain_discovery_config(discv4::ChainPeerConfig & chain_peer_config, const std::string & argv0) Apply data-driven discovery defaults from chains_config.json.

Functions Documentation¶

function parse_chain_discovery_default¶

inline std::optional< discv4::ChainDiscoveryDefault > parse_chain_discovery_default(
    const std::string_view value
)

function parse_discovery_fork_filter¶

inline std::optional< discv4::DiscoveryForkFilter > parse_discovery_fork_filter(
    const std::string_view value
)

function load_chain_config_root¶

inline std::optional< boost::json::object > load_chain_config_root(
    const std::string & argv0
)

function load_chain_config_entry¶

inline std::optional< boost::json::object > load_chain_config_entry(
    const std::string & chain,
    const std::string & argv0
)

function load_default_all_chains¶

inline std::vector< std::string > load_default_all_chains(
    const std::string & argv0
)

function load_fork_hash¶

inline std::optional< std::array< uint8_t, 4U > > load_fork_hash(
    const std::string & chain,
    const std::string & argv0
)

Load the latest fork hash from generated chain_enodes.json/.gz.

Parameters:

chain Canonical chain key, e.g. "ethereum-sepolia".
argv0 Value of argv[0] used to locate files next to the binary.

Return: Parsed 4-byte fork hash, or nullopt if no cache/key/forkId is found.

Fork IDs are generated into chain_enodes.json(.gz), so examples should read them from that cache.

function load_chain_peer_config¶

inline std::optional< discv4::ChainPeerConfig > load_chain_peer_config(
    const std::string & chain_name,
    const std::string & argv0,
    const std::string & chain_peers_json_path,
    const std::string & chain_peers_url,
    bool chain_peers_url_enabled
)

function load_enr_tree_url¶

inline std::optional< std::string > load_enr_tree_url(
    const std::string & chain,
    const std::string & argv0
)

Return the configured EIP-1459 ENR-tree root URL for chain.

function apply_chain_discovery_config¶

inline void apply_chain_discovery_config(
    discv4::ChainPeerConfig & chain_peer_config,
    const std::string & argv0
)

Apply data-driven discovery defaults from chains_config.json.

Updated on 2026-06-05 at 17:22:18 -0700