From 38f6b9c215a7b51171bae786cc2c62f84d1f1e14 Mon Sep 17 00:00:00 2001
From: Danish Arora <danisharora099@gmail.com>
Date: Wed, 2 Apr 2025 16:37:54 +0530
Subject: [PATCH] chore: treeIndex to be a string

---
 packages/rln/src/contract/rln_contract.ts       | 4 ++--
 packages/rln/src/contract/rln_light_contract.ts | 4 ++--
 packages/rln/src/keystore/types.ts              | 2 +-
 packages/rln/src/rln.ts                         | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/packages/rln/src/contract/rln_contract.ts b/packages/rln/src/contract/rln_contract.ts
index 253ab65031..e3b9dfef41 100644
--- a/packages/rln/src/contract/rln_contract.ts
+++ b/packages/rln/src/contract/rln_contract.ts
@@ -470,7 +470,7 @@ export class RLNContract {
 
       const network = await this.contract.provider.getNetwork();
       const address = this.contract.address;
-      const membershipId = Number(decodedData.index);
+      const membershipId = decodedData.index.toString();
 
       return {
         identity,
@@ -596,7 +596,7 @@ export class RLNContract {
 
       const network = await this.contract.provider.getNetwork();
       const address = this.contract.address;
-      const membershipId = ethers.BigNumber.from(decodedData.index).toNumber();
+      const membershipId = decodedData.index.toString();
 
       return {
         identity,
diff --git a/packages/rln/src/contract/rln_light_contract.ts b/packages/rln/src/contract/rln_light_contract.ts
index f3469f6d74..3b859f6213 100644
--- a/packages/rln/src/contract/rln_light_contract.ts
+++ b/packages/rln/src/contract/rln_light_contract.ts
@@ -389,7 +389,7 @@ export class RLNLightContract {
 
       const network = await this.contract.provider.getNetwork();
       const address = this.contract.address;
-      const membershipId = Number(decodedData.index);
+      const membershipId = decodedData.index.toString();
 
       return {
         identity,
@@ -520,7 +520,7 @@ export class RLNLightContract {
 
       const network = await this.contract.provider.getNetwork();
       const address = this.contract.address;
-      const membershipId = Number(decodedData.index);
+      const membershipId = decodedData.index.toString();
 
       return {
         identity,
diff --git a/packages/rln/src/keystore/types.ts b/packages/rln/src/keystore/types.ts
index 89d240edfe..41eccab09a 100644
--- a/packages/rln/src/keystore/types.ts
+++ b/packages/rln/src/keystore/types.ts
@@ -10,7 +10,7 @@ export type Password = string | Uint8Array;
 export type MembershipInfo = {
   chainId: string;
   address: string;
-  treeIndex: number;
+  treeIndex: string;
   rateLimit: number;
 };
 
diff --git a/packages/rln/src/rln.ts b/packages/rln/src/rln.ts
index 1610f1c918..28d41a7d17 100644
--- a/packages/rln/src/rln.ts
+++ b/packages/rln/src/rln.ts
@@ -288,7 +288,7 @@ export class RLNInstance {
     return createRLNEncoder({
       encoder: createEncoder(options),
       rlnInstance: this,
-      index: credentials.membership.treeIndex,
+      index: parseInt(credentials.membership.treeIndex),
       credential: credentials.identity
     });
   }