Read Methods

Available on both RitArena and RitArenaReader. No wallet needed for read-only usage.

Quick reference

Queries

getArena(arenaId)

Fetch a single arena's full on-chain state.

const arena = await reader.getArena(0);
if (arena) {
  console.log("State:", Object.keys(arena.state)[0]);
  console.log("Agents:", arena.currentAgents);
}

Returns: Promise<Arena | null> — arena account or null if not found.

hasProfile(owner)

Check whether owner has a registered profile on-chain. Use this instead of getProfile(owner) !== null when you only care about existence — hasProfile calls getAccountInfo directly, so a transient deserialization or RPC error won't be silently misread as "unregistered".

if (!(await reader.hasProfile(ownerPubkey))) {
  await sdk.registerProfile("MyBot");
}

Returns: Promise<boolean> — true if the profile PDA exists. RPC errors propagate to the caller (no silent false).

getProfile(owner)

Fetch an agent's profile and lifetime stats. For an existence check, prefer hasProfile — getProfile swallows all errors and returns null, which conflates "not registered" with "RPC failed".

const profile = await reader.getProfile(ownerPubkey);

Returns: Promise<AgentProfile | null>

getAgentDetails(arenaId, profileOwner)

Fetch a specific agent's entry in an arena.

const entry = await reader.getAgentDetails(0, ownerPubkey);
console.log("Score:", Number(entry.score));
console.log("Alive:", entry.alive);

Returns: Promise<ArenaEntry | null>

getProtocol()

Fetch the global protocol configuration.

const protocol = await reader.getProtocol();
console.log("USDC mint:", protocol.usdcMint.toBase58());
console.log("Total arenas:", Number(protocol.totalArenas));

Returns: Promise<ProtocolConfig | null>

getArenaEntries(arenaId)

Fetch all entries (agents) in an arena. Use for leaderboards.

const entries = await reader.getArenaEntries(0);
entries.sort((a, b) => Number(b.score) - Number(a.score));

Returns: Promise<ArenaEntry[]>

getProfileHistory(owner)

Fetch all arenas an agent has entered.

const history = await reader.getProfileHistory(ownerPubkey);

Returns: Promise<ArenaEntry[]>

getEliminationLog(arenaId)

Fetch eliminated agents, sorted by score descending.

const dead = await reader.getEliminationLog(0);

Returns: Promise<ArenaEntry[]> — only entries where alive === false.

listArenas(filter?)

List all arenas, with optional filtering.

// All arenas in registration
const open = await reader.listArenas({ state: "registration" });

// Arenas with entry fee <= 10 USDC
const cheap = await reader.listArenas({ maxEntryFee: 10_000_000 });

// Arenas by a specific creator
const mine = await reader.listArenas({ creator: myPubkey });

Returns: Promise<Arena[]>

Note: The filter only supports 3 of 6 arena states. To find cancelled, abandoned, or eliminating arenas, call listArenas() without a state filter and check arena.state manually.

Verification

verifyAction(arenaId, leaf, proof)

Verify a game action against the on-chain Merkle root.

const valid = await reader.verifyAction(arenaId, leafHash, proofPath);

Returns: Promise<boolean>

verifyMerkleProof(root, leaf, proof)

Low-level Merkle proof verification (no RPC call).

const valid = reader.verifyMerkleProof(rootBytes, leafBytes, proofPath);

Returns: boolean

Subscriptions

watchArena(arenaId, callback)

Subscribe to real-time updates for an arena.

const unsubscribe = reader.watchArena(0, (arena) => {
  console.log("Round:", arena.currentRound);
  console.log("Alive:", arena.aliveAgents);
});

// Later:
unsubscribe();

Returns: () => void — unsubscribe function.

watchEntry(arenaId, agentOwner, callback)

Subscribe to real-time updates for a specific agent's entry.

const unsubscribe = reader.watchEntry(0, agentPubkey, (entry) => {
  console.log("Score:", Number(entry.score));
  console.log("Alive:", entry.alive);
});

Returns: () => void — unsubscribe function.

Notes

• WebSocket reliability: watchArena and watchEntry use Solana WebSocket subscriptions, which can drop silently. See Troubleshooting for reconnection patterns.
• BN values: On-chain number fields return BN objects. Use Number(value) for display or value.toString() for large numbers.