refactor(server)!: remove RxJS dependency and simplify architecture [LIVE-21906]

BREAKING CHANGE: Major API changes to WalletAPIServer

- Remove RxJS dependency from server package
- Remove observable-based state management (accounts$, currencies$, etc.)
- Simplify WalletHandlers interface to accept accountId strings instead of Account objects
- Remove setAccounts() and setCurrencies() methods from WalletAPIServer
- Update all internal handlers to delegate data fetching to wallet implementations
- Convert permissions from observables to simple Set data structure
- Add new wallet handlers: account.list and currency.list
- Update React hook to remove accounts and currencies props
- Simplify WalletContext by removing observable properties
- Update exchange handlers to accept accountId instead of Account objects

Migration guide:
- Wallet integrations must now implement account.list and currency.list handlers
- Replace account parameter with accountId in all wallet handlers
- Remove direct calls to setAccounts() and setCurrencies()
- Update useWalletAPIServer hook usage to remove accounts/currencies props

Adapt simulator to new server architecture without RxJS:
- Remove RxJS dependency from simulator package
- Update account.request handler to filter accounts directly instead of using observables
- Remove observable subscriptions from profile application logic
- Modify SimulatorProfile type to restore accounts and currencies arrays
- Add support for method handlers as either object or function accepting accounts/currencies
- Implement inline account.list and currency.list handlers in standard profile
- Remove currencyIds from permissions (now handled at request-handler level)
- Simplify test expectations (use array access instead of .at())
- Remove test for duplicate currency filtering in manifest (no longer applicable)
- Update helper to invoke methods function when provided

Author: Justkant

.changeset/dry-schools-film.md

@@ -0,0 +1,12 @@
+---
+"@ledgerhq/wallet-api-simulator": major
+---
+
+refactor(simulator): adapt to new server architecture without RxJS
+
+- Remove RxJS dependency from simulator package
+- Update SimulatorProfile type to remove accounts and currencies arrays
+- Implement account.list and currency.list handlers in standard profile
+- Update account.request handler to filter accounts directly instead of using observables
+- Remove observable subscriptions from profile application logic
+- Simplify helper functions by removing setAccounts and setCurrencies calls

.changeset/polite-colts-sell.md

@@ -0,0 +1,12 @@
+---
+"@ledgerhq/wallet-api-manifest-validator-cli": patch
+"@ledgerhq/wallet-api-manifest-validator": patch
+"@ledgerhq/client-nextjs": patch
+"@ledgerhq/wallet-api-tools": patch
+"@ledgerhq/wallet-api-client-react": patch
+"@ledgerhq/wallet-api-client": patch
+"@ledgerhq/wallet-api-core": patch
+"@ledgerhq/wallet-api-docs": patch
+---
+
+chore: update some dependencies

.changeset/rare-feet-applaud.md

@@ -0,0 +1,25 @@
+---
+"@ledgerhq/wallet-api-server": major
+---
+
+refactor(server)!: remove RxJS dependency and simplify architecture
+
+BREAKING CHANGE: Major API changes to WalletAPIServer
+
+- Remove RxJS dependency from server package
+- Remove observable-based state management (accounts$, currencies$, etc.)
+- Simplify WalletHandlers interface to accept accountId strings instead of Account objects
+- Remove setAccounts() and setCurrencies() methods from WalletAPIServer
+- Update all internal handlers to delegate data fetching to wallet implementations
+- Convert permissions from observables to simple Set data structure
+- Add new wallet handlers: account.list and currency.list
+- Update React hook to remove accounts and currencies props
+- Simplify WalletContext by removing observable properties
+- Update exchange handlers to accept accountId instead of Account objects
+
+Migration guide:
+
+- Wallet integrations must now implement account.list and currency.list handlers
+- Replace account parameter with accountId in all wallet handlers
+- Remove direct calls to setAccounts() and setCurrencies()
+- Update useWalletAPIServer hook usage to remove accounts/currencies props

apps/docs/package.json

@@ -24,7 +24,7 @@
     "tailwindcss": "^3.4.1"
   },
   "devDependencies": {
-    "@types/node": "^20.11.19",
+    "@types/node": "^24.10.0",
     "typescript": "^5.3.3"
   }
 }

apps/docs/pages/docs/discover/wallet-api/server/extras/rxjs.mdx

@@ -137,26 +137,6 @@ permissions.methodIds$ = [
 
 ### walletContext
 
-#### walletContext.currencies$
-
-The allowed currencies:
-
-[allCurrencies](./wallet-api-server#allcurrencies) filtered against the currencies listed in [permissions.currencyIds](./wallet-api-server#permissionscurrencyids)
-
-| Created via  | name | note                                                                                                                                                           |
-| ------------ | ---- | -------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| _observable_ |      | set in constructor, updates anytime `allAccounts` or `allowedCurrencies` changes, more info on how it does this using rxjs [here](./extras/rxjs#combinelatest) |
-
-#### walletContext.accounts$
-
-The allowed accounts:
-
-[allAccounts](./wallet-api-server#allaccounts) filtered against the allowedCurrencies computed above
-
-| Created via  | name | note                                                                                                                                                                         |
-| ------------ | ---- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| _observable_ |      | set in constructor, updates anytime `allAccounts` or `walletContext.allowedCurrencies` changes, more info on how it does this using rxjs [here](./extras/rxjs#combinelatest) |
-
 #### walletContext.config
 
 An object of this form

apps/docs/pages/docs/discover/wallet-api/server/wallet-api-server/index.mdx

@@ -16,7 +16,7 @@
     "@radix-ui/react-dropdown-menu": "^2.0.6",
     "@radix-ui/react-icons": "^1.3.0",
     "@tailwindcss/typography": "^0.5.10",
-    "@types/node": "20.11.19",
+    "@types/node": "24.10.0",
     "@types/react": "18.2.57",
     "@types/react-dom": "18.2.19",
     "@uiw/codemirror-extensions-langs": "^4.21.22",

apps/wallet-api-tools/package.json

@@ -22,7 +22,7 @@
     "@testing-library/react": "^14.2.1",
     "@testing-library/user-event": "^14.5.2",
     "@types/jest": "^29.5.12",
-    "@types/node": "^20.11.19",
+    "@types/node": "^24.10.0",
     "@types/react": "^18.2.57",
     "@types/react-dom": "^18.2.19",
     "autoprefixer": "^10.4.17",

examples/client-nextjs/package.json

@@ -25,7 +25,7 @@
   "devDependencies": {
     "@ledgerhq/jest-shared-config": "workspace:*",
     "@types/jest": "^29.5.12",
-    "@types/node": "^20.11.19",
+    "@types/node": "^24.10.0",
     "@types/react": "^18.2.57",
     "eslint": "^8.56.0",
     "jest": "^29.7.0",

packages/client-react/package.json

@@ -20,14 +20,14 @@
     "test": "jest"
   },
   "dependencies": {
-    "@ledgerhq/hw-transport": "^6.30.4",
+    "@ledgerhq/hw-transport": "^6.31.13",
     "@ledgerhq/wallet-api-core": "workspace:*",
     "bignumber.js": "^9.1.2"
   },
   "devDependencies": {
     "@ledgerhq/jest-shared-config": "workspace:*",
     "@types/jest": "^29.5.12",
-    "@types/node": "^20.11.19",
+    "@types/node": "^24.10.0",
     "eslint": "^8.56.0",
     "jest": "^29.7.0",
     "jest-environment-jsdom": "^29.7.0",