fix nonce

src/exchanges/lighter/gateway.ts

@@ -199,6 +199,7 @@ export class LighterGateway {
   private readonly l1Address: string | null;
   private loggedCreateOrderPayload = false;
   private readonly logTxInfo: boolean;
+  private readonly primaryApiKeyIndex: number;
   private lastWsPositionUpdateAt = 0;
   private readonly lastWsPositionByMarket = new Map<number, number>();
   private httpPositionsEmptyLogged = false;
@@ -296,6 +297,7 @@ export class LighterGateway {
     if (this.forcedSpotPreset && this.apiKeyIndices.length > 1) {
       this.apiKeyIndices.splice(1); // stick to the first key to avoid nonce drift
     }
+    this.primaryApiKeyIndex = this.apiKeyIndices[0]!;
     this.nonceManager = new HttpNonceManager({
       accountIndex: options.accountIndex,
       apiKeyIndices: this.apiKeyIndices,
@@ -361,7 +363,8 @@ export class LighterGateway {
 
     const maxAttempts = 3;
     for (let attempt = 0; attempt < maxAttempts; attempt++) {
-      const { apiKeyIndex, nonce } = this.nonceManager.next();
+      const { apiKeyIndex, nonce } =
+        this.primaryApiKeyIndex != null ? this.nonceManager.nextFor(this.primaryApiKeyIndex) : this.nonceManager.next();
       try {
         const signed = await this.signer.signCreateOrder({
           ...signParams,

src/exchanges/lighter/nonce-manager.ts

@@ -67,6 +67,20 @@ export class HttpNonceManager implements LighterNonceManager {
     this.slots.set(apiKeyIndex, { apiKeyIndex, next: nonce, lastIssued: null });
   }
 
+  nextFor(apiKeyIndex: number): { apiKeyIndex: number; nonce: bigint } {
+    if (!this.slots.size) {
+      throw new Error("Nonce manager not initialized");
+    }
+    const slot = this.slots.get(apiKeyIndex);
+    if (!slot) {
+      throw new Error(`Nonce slot for API key index ${apiKeyIndex} is not initialized`);
+    }
+    const nonce = slot.next;
+    slot.lastIssued = nonce;
+    slot.next = nonce + 1n;
+    return { apiKeyIndex, nonce };
+  }
+
   private async refreshAll(force: boolean): Promise<void> {
     await Promise.all(
       this.apiKeyIndices.map(async (index) => {