CAIP Multichain package

README.md

@@ -26,6 +26,7 @@ This repository contains the following packages [^fn1]:
 - [`@metamask/keyring-controller`](packages/keyring-controller)
 - [`@metamask/logging-controller`](packages/logging-controller)
 - [`@metamask/message-manager`](packages/message-manager)
+- [`@metamask/multichain`](packages/multichain)
 - [`@metamask/name-controller`](packages/name-controller)
 - [`@metamask/network-controller`](packages/network-controller)
 - [`@metamask/notification-controller`](packages/notification-controller)
@@ -71,6 +72,7 @@ linkStyle default opacity:0.5
  keyring_controller(["@metamask/keyring-controller"]);
  logging_controller(["@metamask/logging-controller"]);
  message_manager(["@metamask/message-manager"]);
+ multichain(["@metamask/multichain"]);
  name_controller(["@metamask/name-controller"]);
  network_controller(["@metamask/network-controller"]);
  notification_controller(["@metamask/notification-controller"]);
@@ -93,14 +95,15 @@ linkStyle default opacity:0.5
  address_book_controller --> controller_utils;
  announcement_controller --> base_controller;
  approval_controller --> base_controller;
- assets_controllers --> accounts_controller;
- assets_controllers --> approval_controller;
  assets_controllers --> base_controller;
  assets_controllers --> controller_utils;
+ assets_controllers --> polling_controller;
+ assets_controllers --> accounts_controller;
+ assets_controllers --> approval_controller;
  assets_controllers --> keyring_controller;
  assets_controllers --> network_controller;
- assets_controllers --> polling_controller;
  assets_controllers --> preferences_controller;
+ base_controller --> json_rpc_engine;
  chain_controller --> base_controller;
  composable_controller --> base_controller;
  composable_controller --> json_rpc_engine;
@@ -110,8 +113,8 @@ linkStyle default opacity:0.5
  eth_json_rpc_provider --> json_rpc_engine;
  gas_fee_controller --> base_controller;
  gas_fee_controller --> controller_utils;
- gas_fee_controller --> network_controller;
  gas_fee_controller --> polling_controller;
+ gas_fee_controller --> network_controller;
  json_rpc_middleware_stream --> json_rpc_engine;
  keyring_controller --> base_controller;
  keyring_controller --> message_manager;
@@ -145,6 +148,9 @@ linkStyle default opacity:0.5
  preferences_controller --> controller_utils;
  preferences_controller --> keyring_controller;
  profile_sync_controller --> base_controller;
+ profile_sync_controller --> keyring_controller;
+ profile_sync_controller --> accounts_controller;
+ profile_sync_controller --> network_controller;
  queued_request_controller --> base_controller;
  queued_request_controller --> controller_utils;
  queued_request_controller --> json_rpc_engine;
@@ -155,26 +161,26 @@ linkStyle default opacity:0.5
  selected_network_controller --> json_rpc_engine;
  selected_network_controller --> network_controller;
  selected_network_controller --> permission_controller;
- signature_controller --> approval_controller;
  signature_controller --> base_controller;
  signature_controller --> controller_utils;
+ signature_controller --> message_manager;
+ signature_controller --> approval_controller;
  signature_controller --> keyring_controller;
  signature_controller --> logging_controller;
- signature_controller --> message_manager;
- transaction_controller --> accounts_controller;
- transaction_controller --> approval_controller;
  transaction_controller --> base_controller;
  transaction_controller --> controller_utils;
+ transaction_controller --> accounts_controller;
+ transaction_controller --> approval_controller;
+ transaction_controller --> eth_json_rpc_provider;
  transaction_controller --> gas_fee_controller;
  transaction_controller --> network_controller;
- transaction_controller --> eth_json_rpc_provider;
- user_operation_controller --> approval_controller;
  user_operation_controller --> base_controller;
  user_operation_controller --> controller_utils;
+ user_operation_controller --> polling_controller;
+ user_operation_controller --> approval_controller;
  user_operation_controller --> gas_fee_controller;
  user_operation_controller --> keyring_controller;
  user_operation_controller --> network_controller;
- user_operation_controller --> polling_controller;
  user_operation_controller --> transaction_controller;
 ```
 

packages/multichain/CHANGELOG.md

@@ -0,0 +1,10 @@
+# Changelog
+
+All notable changes to this project 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).
+
+## [Unreleased]
+
+[Unreleased]: https://github.com/MetaMask/core/

packages/multichain/LICENSE

@@ -0,0 +1,20 @@
+MIT License
+
+Copyright (c) 2024 MetaMask
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

packages/multichain/README.md

@@ -0,0 +1,15 @@
+# `@metamask/multichain`
+
+Provides types, helpers, adapters, and wrappers for facilitating CAIP Multichain sessions
+
+## Installation
+
+`yarn add @metamask/multichain`
+
+or
+
+`npm install @metamask/multichain`
+
+## Contributing
+
+This package is part of a monorepo. Instructions for contributing can be found in the [monorepo README](https://github.com/MetaMask/core#readme).

packages/multichain/jest.config.js

@@ -0,0 +1,26 @@
+/*
+ * For a detailed explanation regarding each configuration property and type check, visit:
+ * https://jestjs.io/docs/configuration
+ */
+
+const merge = require('deepmerge');
+const path = require('path');
+
+const baseConfig = require('../../jest.config.packages');
+
+const displayName = path.basename(__dirname);
+
+module.exports = merge(baseConfig, {
+ // The display name when running multiple projects
+ displayName,
+
+ // An object that configures minimum threshold enforcement for coverage results
+ coverageThreshold: {
+ global: {
+ branches: 83.05,
+ functions: 87.37,
+ lines: 86.73,
+ statements: 87.17,
+ },
+ },
+});