feat(offchain-manager): implement setDefaultEvmAddress method

.github/workflows/publish-release.yaml

@@ -21,7 +21,7 @@ on:
         default: false
       changelog:
         type: string
-        description: "Changelog (required if publishing, markdown format, do NOT include version or date header. Use sections like ### Added, ### Changed, etc.)"
+        description: "Changelog (required if publishing, markdown format, do NOT include version or date header. Use sections like ### Added, ### Changed, etc. Each section should be on a new line, and bullet points should start with -)"
         default: ""
       discord_notify:
         type: boolean
@@ -159,37 +159,36 @@ jobs:
             echo -e "# Changelog\n" > "$FILE"
           fi
 
-          # Find the line number of the "# Changelog" header
-          HEADER_LINE=$(grep -n "^# Changelog" "$FILE" | cut -d: -f1)
-          if [ -z "$HEADER_LINE" ]; then
-            # If not found, just prepend
-            HEADER_LINE=0
-          fi
+          # Find the insertion point - look for the first version entry (## [version])
+          # This ensures we insert after the intro section but before any existing versions
+          FIRST_VERSION_LINE=$(grep -n "^## \[" "$FILE" | head -1 | cut -d: -f1)
 
-          # Find the line number after the intro section (after the first blank line following '# Changelog')
-          INTRO_END_LINE=$(awk '/^# Changelog/{flag=1; next} flag && /^$/{print NR; exit}' "$FILE")
-          if [ -z "$INTRO_END_LINE" ]; then
-            # Fallback: if not found, use header line
-            HEADER_LINE=$(grep -n "^# Changelog" "$FILE" | cut -d: -f1)
-            if [ -z "$HEADER_LINE" ]; then
-              HEADER_LINE=0
-            fi
-            INTRO_END_LINE=$((HEADER_LINE + 1))
+          if [ -z "$FIRST_VERSION_LINE" ]; then
+            # No existing versions found, append to end of file
+            INSERTION_LINE=$(wc -l < "$FILE")
+          else
+            # Insert before the first version entry
+            INSERTION_LINE=$((FIRST_VERSION_LINE - 1))
           fi
 
           # Process the changelog input to ensure proper formatting
-          # Handle both multi-line and single-line input from GitHub UI
-          PRETTY_CHANGELOG=$(echo "$CHANGELOG" | sed -E 's/\\n/\n/g' | sed -E 's/\\1/\n/g' | sed -E 's/^[[:space:]]*//' | sed -E 's/[[:space:]]*$//')
-
-          # Write up to and including the intro
-          if [ "$INTRO_END_LINE" -gt 0 ]; then
-            head -n "$INTRO_END_LINE" "$FILE" > "$TEMP_FILE"
+          # Python3 is pre-installed on ubuntu-latest runners (free, no extra cost)
+          PRETTY_CHANGELOG=$(python3 scripts/format-changelog.py "$CHANGELOG")
+
+          # Write the file up to insertion point
+          if [ "$INSERTION_LINE" -gt 0 ]; then
+            head -n "$INSERTION_LINE" "$FILE" > "$TEMP_FILE"
+          else
+            # If no insertion point found, start with the header
+            echo -e "# Changelog\n" > "$TEMP_FILE"
           fi
-          # Add the new entry
+
+          # Add the new entry with proper formatting
           echo -e "\n${HEADER}\n\n${PRETTY_CHANGELOG}\n" >> "$TEMP_FILE"
-          # Add the rest of the file
-          if [ "$INTRO_END_LINE" -gt 0 ]; then
-            tail -n "+$((INTRO_END_LINE + 1))" "$FILE" >> "$TEMP_FILE"
+
+          # Add the rest of the file (existing versions)
+          if [ "$INSERTION_LINE" -gt 0 ] && [ "$INSERTION_LINE" -lt $(wc -l < "$FILE") ]; then
+            tail -n "+$((INSERTION_LINE + 1))" "$FILE" >> "$TEMP_FILE"
           fi
           mv "$TEMP_FILE" "$FILE"
 

changelog/offchain-manager-changelog.md

@@ -1,15 +1,16 @@
 # Changelog
 
-
-## [1.0.7] - 2025-10-16
-
-### Added -  **Default EVM chain **: Supported default chain introduced in ENSIP 19 with chainId = 0
-
 All notable changes to the `@thenamespace/offchain-manager` package will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.0.7] - 2025-10-16
+
+### Added
+
+- **Default EVM chain**: Supported default chain introduced in ENSIP 19 with chainId = 0
+
 ## [1.0.6] - 2025-10-16
 
 ### Added

packages/offchain-manager/README.md

@@ -158,6 +158,13 @@ await client.addAddressRecord(
 await client.deleteAddressRecord("sub.example.eth", ChainName.Base);
 ```
 
+#### Set Default EVM Address
+
+```typescript
+// Sets the same EVM address for all EVM-compatible chains (Ethereum, Arbitrum, Optimism, Base, Polygon, BSC, Avalanche, Gnosis, zkSync, Linea, Scroll, Unichain, Berachain, WorldChain, Zora, Celo, and Monad)
+await client.setDefaultEvmAddress("sub.example.eth", "0xYourEthereumAddress");
+```
+
 #### Add a Text Record
 
 ```typescript

packages/offchain-manager/examples/basic-usage.ts

@@ -61,6 +61,10 @@ async function basicExample() {
             console.log('📋 Found existing subname:', existing?.fullName);
         }
 
+        // Set default EVM address for all EVM chains
+        await client.setDefaultEvmAddress('alice.happ1.eth', '0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045');
+        console.log('✅ Set default EVM address for all EVM chains to alice.happ1.eth');
+
         // Get subnames for a domain
         const subnames = await client.getFilteredSubnames({
             parentName: 'happ1.eth',

packages/offchain-manager/src/dto/chains.ts

@@ -79,49 +79,61 @@ export interface ChainMetadata {
   label: string;
   /** SLIP-0044 coin type used for ENS address records */
   coin: number;
+  /** Whether this chain is EVM-compatible and should mirror default EVM address */
+  evm?: boolean;
 }
 
 
 export const chainMetadata: Record<ChainName, ChainMetadata> = {
   eth: {
     label: "Ethereum",
     coin: 60,
+    evm: true,
   },
   default: {
     label: "Default",
     coin: 2147483648,
+    evm: true,
   },
   base: {
     label: "Base",
     coin: 8453,
+    evm: true,
   },
   op: {
     label: "Optimism",
     coin: 10,
+    evm: true,
   },
   arb: {
     label: "Arbitrum",
     coin: 42161,
+    evm: true,
   },
   bsc: {
     label: "BNB",
     coin: 56,
+    evm: true,
   },
   polygon: {
     label: "Polygon",
     coin: 137,
+    evm: true,
   },
   avax: {
     label: "Avax",
     coin: 43114,
+    evm: true,
   },
   gnosis: {
     label: "Gnosis",
     coin: 100,
+    evm: true,
   },
   zksync: {
     label: "ZkSync",
     coin: 324,
+    evm: true,
   },
   starknet: {
     label: "Starknet",
@@ -146,10 +158,12 @@ export const chainMetadata: Record<ChainName, ChainMetadata> = {
   linea: {
     label: "Linea",
     coin: 59144,
+    evm: true,
   },
   scroll: {
     label: "Scroll",
     coin: 534352,
+    evm: true,
   },
   sui: {
     label: "Sui",
@@ -158,22 +172,27 @@ export const chainMetadata: Record<ChainName, ChainMetadata> = {
   unichain: {
     label: "Unichain",
     coin: 130,
+    evm: true,
   },
   berachain: {
     label: "Berachain",
     coin: 80094,
+    evm: true,
   },
   world_chain: {
     label: "WorldChain",
     coin: 480,
+    evm: true,
   },
   zora: {
     label: "Zora",
     coin: 7777777,
+    evm: true,
   },
   celo: {
     label: "Celo",
     coin: 42220,
+    evm: true,
   },
   aptos: {
     label: "Aptos",
@@ -186,6 +205,7 @@ export const chainMetadata: Record<ChainName, ChainMetadata> = {
   monad: {
     label: "Monad",
     coin: 10143,
+    evm: true,
   },
 };
 

packages/offchain-manager/src/offchain-client/index.ts

@@ -2,6 +2,7 @@ import axios, { AxiosError, AxiosInstance, AxiosRequestConfig } from "axios";
 import { SubnameDTO } from "../dto/subname.dto";
 import {
   _addAddressRecord,
+  _setDefaultEthereumAddress,
   _addDataRecord,
   _addTextRecord,
   _createSubname,
@@ -185,6 +186,19 @@ export interface OffchainClient {
    */
   deleteAddressRecord(subname: string, chain: ChainName): Promise<void>;
 
+  /**
+   * Set a default EVM address for all EVM-compatible chains to a subname.
+   * This sets the same address for Ethereum, Arbitrum, Optimism, Base, Polygon, BSC, Avalanche, Gnosis, zkSync, Linea, Scroll, Unichain, Berachain, WorldChain, Zora, Celo, and Monad.
+   * @param subname - Full subname (e.g., 'alice.example.eth')
+   * @param value - EVM wallet address to set as default for all supported EVM chains
+   * @throws {ValidationError} When address format is invalid
+   * @example
+   * ```typescript
+   * await client.setDefaultEvmAddress('alice.example.eth', '0x...');
+   * ```
+   */
+  setDefaultEvmAddress(subname: string, value: string): Promise<void>;
+
   /**
    * Add a text record to a subname.
    * @param subname - Full subname (e.g., 'alice.example.eth')
@@ -391,6 +405,18 @@ class HttpOffchainClient implements OffchainClient {
     );
   }
 
+  public async setDefaultEvmAddress(
+    subname: string,
+    value: string
+  ): Promise<void> {
+    await _setDefaultEthereumAddress(
+      this.HTTP,
+      this.fetchApiKeyForName(subname),
+      subname,
+      value
+    );
+  }
+
   public async getSingleSubname(
     fullSubname: string
   ): Promise<SubnameDTO | null> {

packages/offchain-manager/src/offchain-client/private-actions.ts

@@ -7,6 +7,7 @@ import {
   subnameResponseToRequest,
 } from "./utils";
 import { CreateSubnameRequest } from "../dto/create-subname-request.dto";
+import { chainMetadata } from "../dto/chains";
 import { CreateSubnameRequest_Internal } from "../dto/internal-types";
 import { _getSingleSubname } from "./public-actions";
 import { UpdateSubnameRequest } from "../dto";
@@ -205,6 +206,35 @@ export const _deleteDataRecord = async (
   });
 };
 
+export const _setDefaultEthereumAddress = async (
+  client: AxiosInstance,
+  apiKey: string,
+  fullSubname: string,
+  value: string
+) => {
+  const subname = await _getSingleSubname(client, fullSubname);
+
+  const addresses = subname.addresses || {};
+
+  // Derive EVM chains from shared chainMetadata (evm=true)
+  Object.values(chainMetadata)
+    .filter((meta) => meta.evm)
+    .forEach((meta) => {
+      addresses[meta.coin] = value;
+    });
+
+  const _req = subnameResponseToRequest(subname);
+
+  const request: CreateSubnameRequest_Internal = {
+    ..._req,
+    addresses: mapAddrMapToAddressRecords(addresses),
+  };
+
+  return client.post(`/api/v1/subnames`, request, {
+    headers: createAuthorizationHeaders(apiKey),
+  });
+};
+
 const createAuthorizationHeaders = (apiKey: string) => {
   return {
     [AUTH_HEADER]: `${apiKey}`,

scripts/format-changelog.py

@@ -0,0 +1,47 @@
+#!/usr/bin/env python3
+"""
+Format changelog input for proper markdown formatting.
+This handles the conversion from single-line GitHub input to properly formatted markdown.
+"""
+
+import sys
+import re
+
+def format_changelog(input_text):
+    """Format changelog text with proper markdown structure."""
+
+    # Convert escaped newlines to actual newlines
+    text = input_text.replace('\\n', '\n').replace('\\1', '\n')
+
+    # Trim whitespace
+    text = text.strip()
+
+    # Fix section headers that appear mid-text - add newlines before them
+    # Example: "text ### Added" -> "text\n\n### Added"
+    text = re.sub(r'([^\n]) (### [A-Za-z]+)', r'\1\n\n\2', text)
+
+    # Fix section headers - ensure they have proper newlines after the section name
+    # Example: "### Added - item" -> "### Added\n- item"
+    text = re.sub(r'^(### [A-Za-z]+) - ', r'\1\n- ', text, flags=re.MULTILINE)
+
+    # Fix bullet points that are inline with text
+    # Example: "text - item" -> "text\n- item"
+    text = re.sub(r'([^\n]) - ', r'\1\n- ', text)
+
+    # Ensure section headers have blank line after them if followed by content
+    text = re.sub(r'(^### [A-Za-z]+)\n([^-\n])', r'\1\n\n\2', text, flags=re.MULTILINE)
+
+    # Clean up multiple newlines (max 2 consecutive)
+    text = re.sub(r'\n{3,}', '\n\n', text)
+
+    return text
+
+if __name__ == '__main__':
+    if len(sys.argv) < 2:
+        print("Usage: format-changelog.py <changelog_input>", file=sys.stderr)
+        sys.exit(1)
+
+    input_text = ' '.join(sys.argv[1:])
+    formatted = format_changelog(input_text)
+    print(formatted)
+