diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index b4c4e303d..f1243c981 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -33,7 +33,6 @@ jobs:
 
       - name: compile shield contracts and circuits
         run: |
-         
           npm i solc@^0.8.0 -g
           chmod +x ./test/test-zapp-actions.sh
           TERM=xterm bash ./test/test-zapp-actions.sh
diff --git a/eslint.config.js b/eslint.config.js
new file mode 100644
index 000000000..41c64d0ff
--- /dev/null
+++ b/eslint.config.js
@@ -0,0 +1,31 @@
+import globals from "globals";
+import pluginJs from "@eslint/js";
+import pluginTs from "@typescript-eslint/eslint-plugin";
+
+
+export default [
+  {
+  languageOptions: { 
+   globals: globals.browser,
+   parser: "@typescript-eslint/parser", }},
+   pluginJs.configs.recommended,
+  {
+    rules: {
+      "no-underscore-dangle": "off",
+      "no-console": "warn",
+      "no-plusplus": "error",
+      "import/extensions": "off",
+      "no-restricted-syntax": "off",
+      "no-restricted-globals": "off",
+      "no-cond-assign": "off",
+      "semi": ["error", "always"], 
+      "quotes": ["error", "double"], 
+      "@typescript-eslint/no-unused-vars": ["warn"],
+    },
+  },
+  {
+    plugins: {
+      "@typescript-eslint": pluginTs,
+    },
+  }
+];
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 751927d40..6497f9258 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -39,6 +39,7 @@
         "@babel/plugin-syntax-class-properties": "^7.12.13",
         "@babel/preset-env": "^7.20.2",
         "@babel/preset-react": "^7.18.6",
+        "@eslint/js": "^9.13.0",
         "@openzeppelin/contracts": "^4.9.6",
         "@types/chai": "^4.3.0",
         "@types/crypto-js": "^4.1.1",
@@ -48,6 +49,8 @@
         "@types/mocha": "^9.1.0",
         "@types/node": "^17.0.19",
         "@types/prettier": "^2.4.4",
+        "@typescript-eslint/eslint-plugin": "^8.11.0",
+        "@typescript-eslint/parser": "^8.11.0",
         "chai": "^4.5.0",
         "chai-as-promised": "^7.1.2",
         "chai-http": "^4.3.0",
@@ -2044,6 +2047,41 @@
         "@jridgewell/sourcemap-codec": "^1.4.14"
       }
     },
+    "node_modules/@nodelib/fs.scandir": {
+      "version": "2.1.5",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz",
+      "integrity": "sha512-vq24Bq3ym5HEQm2NKCr3yXDwjc7vTsEThRDnkp2DK9p1uqLR+DHurm/NOTo0KG7HYHU7eppKZj3MyqYuMBf62g==",
+      "dev": true,
+      "dependencies": {
+        "@nodelib/fs.stat": "2.0.5",
+        "run-parallel": "^1.1.9"
+      },
+      "engines": {
+        "node": ">= 8"
+      }
+    },
+    "node_modules/@nodelib/fs.stat": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.stat/-/fs.stat-2.0.5.tgz",
+      "integrity": "sha512-RkhPPp2zrqDAQA/2jNhnztcPAlv64XdhIp7a7454A5ovI7Bukxgt7MX7udwAu3zg1DcpPU0rz3VV1SeaqvY4+A==",
+      "dev": true,
+      "engines": {
+        "node": ">= 8"
+      }
+    },
+    "node_modules/@nodelib/fs.walk": {
+      "version": "1.2.8",
+      "resolved": "https://registry.npmjs.org/@nodelib/fs.walk/-/fs.walk-1.2.8.tgz",
+      "integrity": "sha512-oGB+UxlgWcgQkgwo8GcEGwemoTFt3FIO9ababBmaGwXIoBKZ+GTy0pP185beGg7Llih/NSHSV2XAs1lnznocSg==",
+      "dev": true,
+      "dependencies": {
+        "@nodelib/fs.scandir": "2.1.5",
+        "fastq": "^1.6.0"
+      },
+      "engines": {
+        "node": ">= 8"
+      }
+    },
     "node_modules/@openzeppelin/contracts": {
       "version": "4.9.6",
       "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.9.6.tgz",
@@ -2192,6 +2230,236 @@
       "resolved": "https://registry.npmjs.org/@types/triple-beam/-/triple-beam-1.3.2.tgz",
       "integrity": "sha512-txGIh+0eDFzKGC25zORnswy+br1Ha7hj5cMVwKIU7+s0U2AxxJru/jZSMU6OC9MJWP6+pc/hc6ZjyZShpsyY2g=="
     },
+    "node_modules/@typescript-eslint/eslint-plugin": {
+      "version": "8.11.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-8.11.0.tgz",
+      "integrity": "sha512-KhGn2LjW1PJT2A/GfDpiyOfS4a8xHQv2myUagTM5+zsormOmBlYsnQ6pobJ8XxJmh6hnHwa2Mbe3fPrDJoDhbA==",
+      "dev": true,
+      "dependencies": {
+        "@eslint-community/regexpp": "^4.10.0",
+        "@typescript-eslint/scope-manager": "8.11.0",
+        "@typescript-eslint/type-utils": "8.11.0",
+        "@typescript-eslint/utils": "8.11.0",
+        "@typescript-eslint/visitor-keys": "8.11.0",
+        "graphemer": "^1.4.0",
+        "ignore": "^5.3.1",
+        "natural-compare": "^1.4.0",
+        "ts-api-utils": "^1.3.0"
+      },
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/typescript-eslint"
+      },
+      "peerDependencies": {
+        "@typescript-eslint/parser": "^8.0.0 || ^8.0.0-alpha.0",
+        "eslint": "^8.57.0 || ^9.0.0"
+      },
+      "peerDependenciesMeta": {
+        "typescript": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@typescript-eslint/parser": {
+      "version": "8.11.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-8.11.0.tgz",
+      "integrity": "sha512-lmt73NeHdy1Q/2ul295Qy3uninSqi6wQI18XwSpm8w0ZbQXUpjCAWP1Vlv/obudoBiIjJVjlztjQ+d/Md98Yxg==",
+      "dev": true,
+      "dependencies": {
+        "@typescript-eslint/scope-manager": "8.11.0",
+        "@typescript-eslint/types": "8.11.0",
+        "@typescript-eslint/typescript-estree": "8.11.0",
+        "@typescript-eslint/visitor-keys": "8.11.0",
+        "debug": "^4.3.4"
+      },
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      },
+      "funding": {
+        "type": "opencollective",
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+      },
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+        "eslint": "^8.57.0 || ^9.0.0"
+      },
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+        "typescript": {
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+        }
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+    "node_modules/@typescript-eslint/scope-manager": {
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+        "type": "opencollective",
+        "url": "https://opencollective.com/typescript-eslint"
+      }
+    },
+    "node_modules/@typescript-eslint/type-utils": {
+      "version": "8.11.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/type-utils/-/type-utils-8.11.0.tgz",
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+      "dev": true,
+      "dependencies": {
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+        "debug": "^4.3.4",
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+        "url": "https://opencollective.com/typescript-eslint"
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+        "typescript": {
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+        "url": "https://opencollective.com/typescript-eslint"
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+      "version": "8.11.0",
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+      "dependencies": {
+        "@typescript-eslint/types": "8.11.0",
+        "@typescript-eslint/visitor-keys": "8.11.0",
+        "debug": "^4.3.4",
+        "fast-glob": "^3.3.2",
+        "is-glob": "^4.0.3",
+        "minimatch": "^9.0.4",
+        "semver": "^7.6.0",
+        "ts-api-utils": "^1.3.0"
+      },
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+      },
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+        "typescript": {
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+        }
+      }
+    },
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+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
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+      "dev": true,
+      "dependencies": {
+        "balanced-match": "^1.0.0"
+      }
+    },
+    "node_modules/@typescript-eslint/typescript-estree/node_modules/minimatch": {
+      "version": "9.0.5",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-9.0.5.tgz",
+      "integrity": "sha512-G6T0ZX48xgozx7587koeX9Ys2NYy6Gmv//P89sEte9V9whIapMNF4idKxnW2QtCcLiTWlb/wfCabAtAFWhhBow==",
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+      "dependencies": {
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+      },
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+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
+      }
+    },
+    "node_modules/@typescript-eslint/typescript-estree/node_modules/semver": {
+      "version": "7.6.3",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.6.3.tgz",
+      "integrity": "sha512-oVekP1cKtI+CTDvHWYFUcMtsK/00wmAEfyqKfNdARm8u1wNVhSgaX7A8d4UuIlUI5e84iEwOhs7ZPYRmzU9U6A==",
+      "dev": true,
+      "bin": {
+        "semver": "bin/semver.js"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/@typescript-eslint/utils": {
+      "version": "8.11.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/utils/-/utils-8.11.0.tgz",
+      "integrity": "sha512-CYiX6WZcbXNJV7UNB4PLDIBtSdRmRI/nb0FMyqHPTQD1rMjA0foPLaPUV39C/MxkTd/QKSeX+Gb34PPsDVC35g==",
+      "dev": true,
+      "dependencies": {
+        "@eslint-community/eslint-utils": "^4.4.0",
+        "@typescript-eslint/scope-manager": "8.11.0",
+        "@typescript-eslint/types": "8.11.0",
+        "@typescript-eslint/typescript-estree": "8.11.0"
+      },
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/typescript-eslint"
+      },
+      "peerDependencies": {
+        "eslint": "^8.57.0 || ^9.0.0"
+      }
+    },
+    "node_modules/@typescript-eslint/visitor-keys": {
+      "version": "8.11.0",
+      "resolved": "https://registry.npmjs.org/@typescript-eslint/visitor-keys/-/visitor-keys-8.11.0.tgz",
+      "integrity": "sha512-EaewX6lxSjRJnc+99+dqzTeoDZUfyrA52d2/HRrkI830kgovWsmIiTfmr0NZorzqic7ga+1bS60lRBUgR3n/Bw==",
+      "dev": true,
+      "dependencies": {
+        "@typescript-eslint/types": "8.11.0",
+        "eslint-visitor-keys": "^3.4.3"
+      },
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/typescript-eslint"
+      }
+    },
+    "node_modules/@typescript-eslint/visitor-keys/node_modules/eslint-visitor-keys": {
+      "version": "3.4.3",
+      "resolved": "https://registry.npmjs.org/eslint-visitor-keys/-/eslint-visitor-keys-3.4.3.tgz",
+      "integrity": "sha512-wpc+LXeiyiisxPlEkUzU6svyS1frIO3Mgxj1fdy7Pm8Ygzguax2N3Fa/D/ag1WqbOprdI+uY6wMUl8/a2G+iag==",
+      "dev": true,
+      "engines": {
+        "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
+      },
+      "funding": {
+        "url": "https://opencollective.com/eslint"
+      }
+    },
     "node_modules/accepts": {
       "version": "1.3.8",
       "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
@@ -3505,6 +3773,22 @@
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       "dev": true
     },
+    "node_modules/fast-glob": {
+      "version": "3.3.2",
+      "resolved": "https://registry.npmjs.org/fast-glob/-/fast-glob-3.3.2.tgz",
+      "integrity": "sha512-oX2ruAFQwf/Orj8m737Y5adxDQO0LAB7/S5MnxCdTNDd4p6BsyIVsv9JQsATbTSq8KHRpLwIHbVlUNatxd+1Ow==",
+      "dev": true,
+      "dependencies": {
+        "@nodelib/fs.stat": "^2.0.2",
+        "@nodelib/fs.walk": "^1.2.3",
+        "glob-parent": "^5.1.2",
+        "merge2": "^1.3.0",
+        "micromatch": "^4.0.4"
+      },
+      "engines": {
+        "node": ">=8.6.0"
+      }
+    },
     "node_modules/fast-json-stable-stringify": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.1.0.tgz",
@@ -3517,6 +3801,15 @@
       "integrity": "sha512-DCXu6Ifhqcks7TZKY3Hxp3y6qphY5SJZmrWMDrKcERSOXWQdMhU9Ig/PYrzyw/ul9jOIyh0N4M0tbC5hodg8dw==",
       "dev": true
     },
+    "node_modules/fastq": {
+      "version": "1.17.1",
+      "resolved": "https://registry.npmjs.org/fastq/-/fastq-1.17.1.tgz",
+      "integrity": "sha512-sRVD3lWVIXWg6By68ZN7vho9a1pQcN/WBFaAAsDDFzlJjvoGx0P8z7V1t72grFJfJhu3YPZBuu25f7Kaw2jN1w==",
+      "dev": true,
+      "dependencies": {
+        "reusify": "^1.0.4"
+      }
+    },
     "node_modules/fecha": {
       "version": "4.2.3",
       "resolved": "https://registry.npmjs.org/fecha/-/fecha-4.2.3.tgz",
@@ -3909,6 +4202,12 @@
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.11.tgz",
       "integrity": "sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ=="
     },
+    "node_modules/graphemer": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/graphemer/-/graphemer-1.4.0.tgz",
+      "integrity": "sha512-EtKwoO6kxCL9WO5xipiHTZlSzBm7WLT627TqC/uVRd0HKmq8NXyebnNYxDoBi7wt8eTWrUrKXCOVaFq9x1kgag==",
+      "dev": true
+    },
     "node_modules/has-flag": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
@@ -4558,6 +4857,15 @@
       "resolved": "https://registry.npmjs.org/merge-descriptors/-/merge-descriptors-1.0.1.tgz",
       "integrity": "sha512-cCi6g3/Zr1iqQi6ySbseM1Xvooa98N0w31jzUYrXPX2xqObmFGHJ0tQ5u74H3mVh7wLouTseZyYIq39g8cNp1w=="
     },
+    "node_modules/merge2": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/merge2/-/merge2-1.4.1.tgz",
+      "integrity": "sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg==",
+      "dev": true,
+      "engines": {
+        "node": ">= 8"
+      }
+    },
     "node_modules/methods": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/methods/-/methods-1.1.2.tgz",
@@ -4566,6 +4874,19 @@
         "node": ">= 0.6"
       }
     },
+    "node_modules/micromatch": {
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.8.tgz",
+      "integrity": "sha512-PXwfBhYu0hBCPw8Dn0E+WDYb7af3dSLVWKi3HGv84IdF4TyFoC0ysxFd0Goxw7nSv4T/PzEJQxsYsEiFCKo2BA==",
+      "dev": true,
+      "dependencies": {
+        "braces": "^3.0.3",
+        "picomatch": "^2.3.1"
+      },
+      "engines": {
+        "node": ">=8.6"
+      }
+    },
     "node_modules/mime": {
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/mime/-/mime-1.6.0.tgz",
@@ -8108,6 +8429,26 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/queue-microtask": {
+      "version": "1.2.3",
+      "resolved": "https://registry.npmjs.org/queue-microtask/-/queue-microtask-1.2.3.tgz",
+      "integrity": "sha512-NuaNSa6flKT5JaSYQzJok04JzTL1CA6aGhv5rfLW3PgqA+M2ChpZQnAC8h8i4ZFkBS8X5RqkDBHA7r4hej3K9A==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ]
+    },
     "node_modules/randombytes": {
       "version": "2.1.0",
       "dev": true,
@@ -8284,6 +8625,39 @@
         "node": ">=4"
       }
     },
+    "node_modules/reusify": {
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diff --git a/package.json b/package.json
index db5e0a6f2..d48698d31 100644
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