feat(27254): implement new remote-feature-flag-controller

README.md

@@ -162,8 +162,8 @@ linkStyle default opacity:0.5
   preferences_controller --> keyring_controller;
   profile_sync_controller --> base_controller;
   profile_sync_controller --> keyring_controller;
-  profile_sync_controller --> accounts_controller;
   profile_sync_controller --> network_controller;
+  profile_sync_controller --> accounts_controller;
   queued_request_controller --> base_controller;
   queued_request_controller --> controller_utils;
   queued_request_controller --> json_rpc_engine;
@@ -179,6 +179,7 @@ linkStyle default opacity:0.5
   signature_controller --> approval_controller;
   signature_controller --> keyring_controller;
   signature_controller --> logging_controller;
+  signature_controller --> network_controller;
   transaction_controller --> base_controller;
   transaction_controller --> controller_utils;
   transaction_controller --> accounts_controller;

packages/remote-feature-flag-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 ([#4931](https://github.com/MetaMask/core/pull/4931))
+
+[Unreleased]: https://github.com/MetaMask/core/

packages/remote-feature-flag-controller/LICENSE

@@ -0,0 +1,6 @@
+This project is licensed under either of
+
+ * MIT license ([LICENSE.MIT](LICENSE.MIT))
+ * Apache License, Version 2.0 ([LICENSE.APACHE2](LICENSE.APACHE2))
+
+at your option. 

packages/remote-feature-flag-controller/LICENSE.APACHE2

@@ -0,0 +1,201 @@
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packages/remote-feature-flag-controller/LICENSE.MIT

@@ -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
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+copies or substantial portions of the Software.
+
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+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/remote-feature-flag-controller/README.md

@@ -0,0 +1,15 @@
+# `@metamask/remote-feature-flag-controller`
+
+The RemoteFeatureFlagController manages the retrieval and caching of remote feature flags. It fetches feature flags from a remote API, caches them, and provides methods to access and manage these flags. The controller ensures that feature flags are refreshed based on a specified interval and handles cases where the controller is disabled or the network is unavailable.
+
+## Installation
+
+`yarn add @metamask/remote-feature-flag-controller`
+
+or
+
+`npm install @metamask/remote-feature-flag-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/remote-feature-flag-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: 100,
+      functions: 100,
+      lines: 100,
+      statements: 100,
+    },
+  },
+});

packages/remote-feature-flag-controller/package.json

@@ -0,0 +1,74 @@
+{
+  "name": "@metamask/remote-feature-flag-controller",
+  "version": "0.0.0",
+  "description": "The RemoteFeatureFlagController manages the retrieval and caching of remote feature flags",
+  "keywords": [
+    "MetaMask",
+    "Ethereum"
+  ],
+  "homepage": "https://github.com/MetaMask/core/tree/main/packages/remote-feature-flag-controller#readme",
+  "bugs": {
+    "url": "https://github.com/MetaMask/core/issues"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/MetaMask/core.git"
+  },
+  "license": "(MIT OR Apache-2.0)",
+  "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/remote-feature-flag-controllers",
+    "changelog:validate": "../../scripts/validate-changelog.sh @metamask/remote-feature-flag-controllers",
+    "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": "^7.0.2",
+    "@metamask/utils": "^10.0.0",
+    "cockatiel": "^3.1.2"
+  },
+  "devDependencies": {
+    "@lavamoat/allow-scripts": "^3.0.4",
+    "@metamask/auto-changelog": "^3.4.4",
+    "@metamask/controller-utils": "^11.4.3",
+    "@types/jest": "^27.4.1",
+    "deepmerge": "^4.2.2",
+    "jest": "^27.5.1",
+    "nock": "^13.3.1",
+    "ts-jest": "^27.1.4",
+    "typedoc": "^0.24.8",
+    "typedoc-plugin-missing-exports": "^2.0.0",
+    "typescript": "~5.2.2"
+  },
+  "engines": {
+    "node": "^18.18 || >=20"
+  },
+  "publishConfig": {
+    "access": "public",
+    "registry": "https://registry.npmjs.org/"
+  }
+}

packages/remote-feature-flag-controller/src/client-config-api-service/abstract-client-config-api-service.ts

@@ -0,0 +1,9 @@
+import type { PublicInterface } from '@metamask/utils';
+
+import type { ClientConfigApiService } from './client-config-api-service';
+
+/**
+ * A service object responsible for fetching feature flags.
+ */
+export type AbstractClientConfigApiService =
+  PublicInterface<ClientConfigApiService>;