fix: parametrize polling interval

Author: doomsower

src/config/env.ts

@@ -14,6 +14,7 @@ const envConfigMapping: Record<keyof ConfigSchema, string | string[]> = {
   ethProviderRpcs: "JSON_RPC_PROVIDERS",
   ignoreAccounts: "IGNORE_ACCOUNTS",
   logsPageSize: "LOGS_PAGE_SIZE",
+  pollingInterval: "POLLING_INTERVAL",
   hfThreshold: "HF_TRESHOLD",
   restakingWorkaround: "RESTAKING_WORKAROUND",
   minBalance: "MIN_BALANCE",

src/config/schema.ts

@@ -75,6 +75,10 @@ export const ConfigSchema = PartialV300ConfigSchema.extend({
    * Page size in blocks for eth_getLogs, default to some network-specific value
    */
   logsPageSize: bigintLike.optional(),
+  /**
+   * Polling interval in milliseconds, default to what's default in viem
+   */
+  pollingInterval: z.coerce.number().nonnegative().optional(),
   /**
    * Private key used to send liquidation transactions
    */

src/services/Client.ts

@@ -116,7 +116,8 @@ export default class Client {
   >;
 
   public async launch(): Promise<void> {
-    const { chainId, network, optimistic, privateKey } = this.config;
+    const { chainId, network, optimistic, privateKey, pollingInterval } =
+      this.config;
     const chain = defineChain({
       ...CHAINS[network],
       id: chainId,
@@ -126,13 +127,13 @@ export default class Client {
       cacheTime: 0,
       chain,
       transport: this.#createTransport(),
-      pollingInterval: optimistic ? 25 : undefined,
+      pollingInterval: optimistic ? 25 : pollingInterval,
     });
     this.#logsClient = createPublicClient({
       cacheTime: 0,
       chain,
       transport: this.#createTransport(true),
-      pollingInterval: optimistic ? 25 : undefined,
+      pollingInterval: optimistic ? 25 : pollingInterval,
     });
     this.#walletClient = createWalletClient({
       account: privateKeyToAccount(privateKey),