feat: bridge controller (#5276)

## Explanation

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This PR adds a new controller: `BridgeController`.

This controller handles the quote fetching and polling from the Bridge
API.

## References

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* Fixes #12345
* Related to #67890
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This is a port of the `BridgeController` from Extension:
https://github.com/MetaMask/metamask-extension/tree/main/app/scripts/controllers/bridge

Some minor changes were needed to fill in the missing functions and
variables from Extension.

This package will be consumed initially by the Metamask Mobile
application first. Eventually, we wish to migrate the Extension to use
this `core/bridge-controller` package.

## Changelog

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### `@metamask/bridge-controller`

- **<ADDED>**: New `BridgeController`!

## Checklist

- [x] I've updated the test suite for new or updated code as appropriate
- [x] I've updated documentation (JSDoc, Markdown, etc.) for new or
updated code as appropriate
- [ ] I've highlighted breaking changes using the "BREAKING" category
above as appropriate
- [ ] I've prepared draft pull requests for clients and consumer
packages to resolve any breaking changes

---------

Co-authored-by: Elliot Winkler <[email protected]>

Author: infiniteflower

.github/CODEOWNERS

@@ -37,6 +37,9 @@
 ## Snaps Team
 /packages/rate-limit-controller            @MetaMask/snaps-devs
 
+## Swaps-Bridge Team
+/packages/bridge-controller                @MetaMask/swaps-engineers
+
 ## Portfolio Team
 /packages/token-search-discovery-controller      @MetaMask/portfolio
 
@@ -112,4 +115,5 @@
 /packages/multichain-transactions-controller/CHANGELOG.md @MetaMask/accounts-engineers @MetaMask/wallet-framework-engineers
 /packages/token-search-discovery-controller/package.json      @MetaMask/portfolio @MetaMask/wallet-framework-engineers
 /packages/token-search-discovery-controller/CHANGELOG.md      @MetaMask/portfolio @MetaMask/wallet-framework-engineers
-
+/packages/bridge-controller/package.json                 @MetaMask/swaps-engineers @MetaMask/wallet-framework-engineers
+/packages/bridge-controller/CHANGELOG.md                 @MetaMask/swaps-engineers @MetaMask/wallet-framework-engineers

.gitignore

@@ -34,4 +34,4 @@ scripts/coverage
 !.yarn/versions
 
 # typescript
-packages/*/*.tsbuildinfo
+packages/*/*.tsbuildinfo

README.md

@@ -26,6 +26,7 @@ Each package in this repository has its own README where you can find installati
 - [`@metamask/approval-controller`](packages/approval-controller)
 - [`@metamask/assets-controllers`](packages/assets-controllers)
 - [`@metamask/base-controller`](packages/base-controller)
+- [`@metamask/bridge-controller`](packages/bridge-controller)
 - [`@metamask/build-utils`](packages/build-utils)
 - [`@metamask/composable-controller`](packages/composable-controller)
 - [`@metamask/controller-utils`](packages/controller-utils)

packages/bridge-controller/CHANGELOG.md

@@ -0,0 +1,14 @@
+# 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]
+
+### Added
+
+- Initial release
+
+[Unreleased]: https://github.com/MetaMask/core/

packages/bridge-controller/LICENSE

@@ -0,0 +1,20 @@
+MIT License
+
+Copyright (c) 2025 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/bridge-controller/README.md

@@ -0,0 +1,15 @@
+# `@metamask/bridge-controller`
+
+Manages bridge-related quote fetching functionality for MetaMask.
+
+## Installation
+
+`yarn add @metamask/bridge-controller`
+
+or
+
+`npm install @metamask/bridge-controller`
+
+## 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/bridge-controller/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: 93,
+      functions: 98,
+      lines: 99,
+      statements: 99,
+    },
+  },
+});

packages/bridge-controller/package.json

@@ -0,0 +1,87 @@
+{
+  "name": "@metamask/bridge-controller",
+  "version": "0.0.0",
+  "description": "Manages bridge-related quote fetching functionality for MetaMask",
+  "keywords": [
+    "MetaMask",
+    "Ethereum"
+  ],
+  "homepage": "https://github.com/MetaMask/core/tree/main/packages/bridge-controller#readme",
+  "bugs": {
+    "url": "https://github.com/MetaMask/core/issues"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/MetaMask/core.git"
+  },
+  "license": "MIT",
+  "sideEffects": false,
+  "exports": {
+    ".": {
+      "import": {
+        "types": "./dist/index.d.mts",
+        "default": "./dist/index.mjs"
+      },
+      "require": {
+        "types": "./dist/index.d.cts",
+        "default": "./dist/index.cjs"
+      }
+    },
+    "./package.json": "./package.json"
+  },
+  "main": "./dist/index.cjs",
+  "types": "./dist/index.d.cts",
+  "files": [
+    "dist/"
+  ],
+  "scripts": {
+    "build": "ts-bridge --project tsconfig.build.json --verbose --clean --no-references",
+    "build:docs": "typedoc",
+    "changelog:update": "../../scripts/update-changelog.sh @metamask/bridge-controller",
+    "changelog:validate": "../../scripts/validate-changelog.sh @metamask/bridge-controller",
+    "publish:preview": "yarn npm publish --tag preview",
+    "since-latest-release": "../../scripts/since-latest-release.sh",
+    "test": "NODE_OPTIONS=--experimental-vm-modules jest --reporters=jest-silent-reporter",
+    "test:clean": "NODE_OPTIONS=--experimental-vm-modules jest --clearCache",
+    "test:verbose": "NODE_OPTIONS=--experimental-vm-modules jest --verbose",
+    "test:watch": "NODE_OPTIONS=--experimental-vm-modules jest --watch"
+  },
+  "dependencies": {
+    "@metamask/base-controller": "^8.0.0",
+    "@metamask/controller-utils": "^11.5.0",
+    "@metamask/metamask-eth-abis": "^3.1.1",
+    "@metamask/polling-controller": "^12.0.3",
+    "@metamask/utils": "^11.1.0",
+    "ethers": "^6.12.0"
+  },
+  "devDependencies": {
+    "@metamask/accounts-controller": "^23.1.0",
+    "@metamask/auto-changelog": "^3.4.4",
+    "@metamask/eth-json-rpc-provider": "^4.1.8",
+    "@metamask/json-rpc-engine": "^10.0.3",
+    "@metamask/network-controller": "^22.2.1",
+    "@metamask/transaction-controller": "^45.1.0",
+    "@types/jest": "^27.4.1",
+    "deepmerge": "^4.2.2",
+    "jest": "^27.5.1",
+    "jest-environment-jsdom": "^27.5.1",
+    "lodash": "^4.17.21",
+    "nock": "^13.3.1",
+    "ts-jest": "^27.1.4",
+    "typedoc": "^0.24.8",
+    "typedoc-plugin-missing-exports": "^2.0.0",
+    "typescript": "~5.2.2"
+  },
+  "peerDependencies": {
+    "@metamask/accounts-controller": "^23.0.0",
+    "@metamask/network-controller": "^22.0.0",
+    "@metamask/transaction-controller": "^45.0.0"
+  },
+  "engines": {
+    "node": "^18.18 || >=20"
+  },
+  "publishConfig": {
+    "access": "public",
+    "registry": "https://registry.npmjs.org/"
+  }
+}