From db800a60ec8a387a1c638655140a545f57a1fb3a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20Hallet?= <clement@challet.eu>
Date: Mon, 2 Jan 2023 23:12:58 +0100
Subject: [PATCH 1/3] add a CONTRACT_NOT_DEPLOYED error handling

---
 lib/__tests__/getParsedEthersError.test.ts | 15 +++++++++++++++
 lib/constants.ts                           |  2 ++
 lib/utils/getTopLevelKnownError.ts         | 10 ++++++++++
 3 files changed, 27 insertions(+)

diff --git a/lib/__tests__/getParsedEthersError.test.ts b/lib/__tests__/getParsedEthersError.test.ts
index f0b50b0..cdf146c 100644
--- a/lib/__tests__/getParsedEthersError.test.ts
+++ b/lib/__tests__/getParsedEthersError.test.ts
@@ -287,6 +287,21 @@ describe("getParsedEthersError", () => {
       context: gasLimit.toString(),
     });
   });
+  it("should handle getCode call to an address without a deployed contract", () => {
+    const contractAddress = "0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA";
+    const result = getParsedEthersError({
+      code: ETHERS_ERROR_CODES.UNSUPPORTED_OPERATION,
+      operation: "getDeployed",
+      reason: "contract not deployed",
+      message: "contract not deployed",
+      contractAddress,
+    });
+
+    expect(result).toEqual({
+      errorCode: RETURN_VALUE_ERROR_CODES.CONTRACT_NOT_DEPLOYED,
+      context: contractAddress,
+    });
+  });
   it("should handle unknown errors with a nested level error", () => {
     const code = "SOME INTERNAL ETHERS CODE";
     const message = "Some internal Ethers error message";
diff --git a/lib/constants.ts b/lib/constants.ts
index 3aff8b9..a872eab 100644
--- a/lib/constants.ts
+++ b/lib/constants.ts
@@ -10,6 +10,7 @@ export const RETURN_VALUE_ERROR_CODES = {
     "MAX_PRIORITY_FEE_PER_GAS_HIGHER_THAN_MAX_FEE_PER_GAS",
   MAX_FEE_PER_GAS_LESS_THAN_BLOCK_BASE_FEE:
     "MAX_FEE_PER_GAS_LESS_THAN_BLOCK_BASE_FEE",
+  CONTRACT_NOT_DEPLOYED: "CONTRACT_NOT_DEPLOYED",
   UNKNOWN_ERROR: "UNKNOWN_ERROR",
 } as const;
 
@@ -18,6 +19,7 @@ export const ETHERS_ERROR_CODES = {
   UNPREDICTABLE_GAS_LIMIT: "UNPREDICTABLE_GAS_LIMIT",
   ACTION_REJECTED: "ACTION_REJECTED",
   CALL_EXCEPTION: "CALL_EXCEPTION",
+  UNSUPPORTED_OPERATION: "UNSUPPORTED_OPERATION",
 };
 
 export const NESTED_ETHERS_ERROR_CODES = {
diff --git a/lib/utils/getTopLevelKnownError.ts b/lib/utils/getTopLevelKnownError.ts
index f85667a..01299ee 100644
--- a/lib/utils/getTopLevelKnownError.ts
+++ b/lib/utils/getTopLevelKnownError.ts
@@ -36,6 +36,16 @@ export function getTopLevelKnownError(
     };
   }
 
+  if (
+    ethersError.code === ETHERS_ERROR_CODES.UNSUPPORTED_OPERATION &&
+    ethersError.operation === "getDeployed" &&
+    ethersError.reason === "contract not deployed"
+  ) {
+    return {
+      errorCode: RETURN_VALUE_ERROR_CODES.CONTRACT_NOT_DEPLOYED,
+      context: ethersError.contractAddress,
+    };
+  }
   const unpredictableGasLimitError = getUnpredictableGasLimitError(ethersError);
   if (unpredictableGasLimitError !== undefined) {
     return unpredictableGasLimitError;

From ec0766f1546d73ed46ef5a1e6b42f237c17ee075 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20Hallet?= <clement@challet.eu>
Date: Mon, 2 Jan 2023 23:31:14 +0100
Subject: [PATCH 2/3] update the README

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index ad4323d..618c2b0 100644
--- a/README.md
+++ b/README.md
@@ -78,6 +78,7 @@ Here is the complete list of returned objects:
 | `INSUFFICIENT_FUNDS_FOR_GAS`                           | `undefined`                                                                |
 | `MAX_PRIORITY_FEE_PER_GAS_HIGHER_THAN_MAX_FEE_PER_GAS` | `undefined `                                                               |
 | `MAX_FEE_PER_GAS_LESS_THAN_BLOCK_BASE_FEE`             | `undefined `                                                               |
+| `CONTRACT_NOT_DEPLOYED`                                | The requested address where the contrat is not deployed.                   |
 | `UNKNOWN_ERROR`                                        | Some code or description of the error if available. `undefined` otherwise. |
 
 The error codes strings can be accesses via the `RETURN_VALUE_ERROR_CODES` constant that the package exports.

From 94c0d52a94b57473003ddbb40e4e84ca26faec9e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20Hallet?= <clement@challet.eu>
Date: Mon, 2 Jan 2023 23:39:22 +0100
Subject: [PATCH 3/3] update EthersError type

---
 lib/types.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/types.ts b/lib/types.ts
index 61847cd..31199ca 100644
--- a/lib/types.ts
+++ b/lib/types.ts
@@ -18,6 +18,8 @@ export interface EthersError {
   };
   action?: string;
   reason?: string;
+  operation?: string;
+  contractAddress?: string;
 }
 
 export interface NestedEthersError {