feat: deno ffi bindings (#40)

* initial ts commit
* monero.ts improvements
* test on latest, build on debian:bookworm
* feat: upstream changes to bindings
* chore: update checksums
* feat: allow manually loading dylib
* chore: add readme
* fix: free strings after being read to prevent potential memory leaks
* fix: load dylib
* fix: checksum checks segfaulting because of freeing const variables

---------

Co-authored-by: Mateusz Franik <47059999+Im-Beast@users.noreply.github.com>
Co-authored-by: Im-Beast <franik.mateusz@gmail.com>

.github/workflows/full_check.yaml

@@ -137,7 +137,7 @@ jobs:
         coin: [monero, wownero]
     runs-on: ubuntu-latest
     container:
-      image: debian:bookworm
+      image: debian:bullseye
     steps:
       - name: Install dependencies
         run: |
@@ -698,6 +698,123 @@ jobs:
         with:
           name: ${{ matrix.coin }} xmruw apk
           path: unnamed_monero_wallet/build/app/outputs/flutter-apk/*.apk
+  bulk_lib_release:
+    name: create single release file
+    runs-on: ubuntu-latest
+    needs: [
+      lib_mingw, lib_android, lib_linux, lib_sailfishos_aarch64, lib_sailfishos_i486, lib_darwin, lib_macos, lib_ios
+    ]
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: android monero
+          path: release/monero
+      - uses: actions/download-artifact@v4
+        with:
+          name: android wownero
+          path: release/wownero
+      - uses: actions/download-artifact@v4
+        with:
+          name: darwin monero
+          path: release/monero
+      - uses: actions/download-artifact@v4
+        with:
+          name: darwin wownero
+          path: release/wownero
+      - uses: actions/download-artifact@v4
+        with:
+          name: ios monero
+          path: release/monero
+      - uses: actions/download-artifact@v4
+        with:
+          name: ios wownero
+          path: release/wownero
+      - uses: actions/download-artifact@v4
+        with:
+          name: linux monero
+          path: release/monero
+      - uses: actions/download-artifact@v4
+        with:
+          name: linux wownero
+          path: release/wownero
+      - uses: actions/download-artifact@v4
+        with:
+          name: macos monero
+          path: release/monero
+      - uses: actions/download-artifact@v4
+        with:
+          name: macos wownero
+          path: release/wownero
+      - uses: actions/download-artifact@v4
+        with:
+          name: mingw monero
+          path: release/monero
+      - uses: actions/download-artifact@v4
+        with:
+          name: mingw wownero
+          path: release/wownero
+      - uses: actions/download-artifact@v4
+        with:
+          name: sfos aarch64 monero
+          path: release/monero
+      - uses: actions/download-artifact@v4
+        with:
+          name: sfos aarch64 wownero
+          path: release/wownero
+      - uses: actions/download-artifact@v4
+        with:
+          name: sfos_i486 monero
+          path: release/monero
+      - uses: actions/download-artifact@v4
+        with:
+          name: sfos_i486 wownero
+          path: release/wownero
+      - name: zip release dir
+        run: zip -r release-bundle.zip release
+      - name: Release
+        uses: softprops/action-gh-release@v2
+        if: startsWith(github.ref, 'refs/tags/')
+        with:
+          files: release-bundle.zip
+          token: ${{ secrets.CUSTOM_GITHUB_TOKEN }}
+      - name: Upload lib
+        uses: actions/upload-artifact@v4
+        with:
+          name: release-bulk
+          path: release
+  deno_monerots_test_linux:
+    name: test ts library
+    runs-on: ubuntu-24.04
+    needs: [
+      lib_linux
+    ]
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          submodules: recursive
+      - uses: actions/download-artifact@v4
+        with:
+          name: linux monero
+          path: release/monero
+      - name: unpack and move monero_c
+        run: |
+          unxz -f -k release/*/*.xz
+      - uses: denoland/setup-deno@v1
+        with:
+          deno-version: vx.x.x
+      - name: Create symlink
+        run: |
+          cd impls/monero.ts
+          mkdir lib
+          cd lib
+          ln -s ../../../release/monero/x86_64-linux-gnu_libwallet2_api_c.so
+          mv x86_64-linux-gnu_libwallet2_api_c.so monero_libwallet2_api_c.so
+          cd ..
+      - name: Run tests
+        run: |
+          cd impls/monero.ts
+          deno run --unstable-ffi --allow-ffi checksum.ts
 
   comment_pr:
     name: comment on pr
@@ -752,4 +869,4 @@ jobs:
         with:
           issue-number: ${{steps.get_issue_number.outputs.result}}
           body: |
-            [download artifacts #${{github.run_id}}](https://nightly.link/MrCyjaneK/monero_c/actions/runs/${{github.run_id}}) (this comment will update whenever you push)
+            [download artifacts #${{github.run_id}}](https://nightly.link/MrCyjaneK/monero_c/actions/runs/${{github.run_id}}) (this comment will update whenever you push)

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "deno.enable": true
+}

generate_checksum.sh

@@ -1,6 +1,11 @@
 #!/bin/bash
 cd "$(realpath $(dirname $0))"
-function sha256sum() { shasum -a 256 "$@" ; } && export -f sha256sum
+
+if [[ "$(uname)" == "Darwin" ]];
+then
+    function sha256sum() { shasum -a 256 "$@" ; } && export -f sha256sum
+fi
+
 for coin in monero wownero;
 do
     submodule_hash=$(git ls-tree HEAD ${coin} | xargs | awk '{ print $3 }')
@@ -22,6 +27,13 @@ EOF
 const String wallet2_api_c_h_sha256 = "${COIN_wallet2_api_c_h_sha256}";
 const String wallet2_api_c_cpp_sha256 = "${COIN_wallet2_api_c_cpp_sha256}";
 const String wallet2_api_c_exp_sha256 = "${COIN_wallet2_api_c_exp_sha256}";
+EOF
+    cat > impls/monero.ts/checksum_${coin}.ts << EOF
+export const ${coin}Checksum = {
+    wallet2_api_c_h_sha256: "${COIN_wallet2_api_c_h_sha256}",
+    wallet2_api_c_cpp_sha256: "${COIN_wallet2_api_c_cpp_sha256}",
+    wallet2_api_c_exp_sha256: "${COIN_wallet2_api_c_exp_sha256}",
+}
 EOF
 done
 

impls/monero.ts/.gitignore

@@ -0,0 +1,2 @@
+*_libwallet2_api_c.*
+lib

impls/monero.ts/README.md

@@ -0,0 +1,42 @@
+# monero.ts
+
+`monero_c` bindings for Deno.
+
+## Usage
+
+This library does not ship with `monero_c` libraries.\
+To use these bindings you have to bring your own `monero_c` libraries.\
+There are at least two ways to do so:
+- Ahead-of-time, during builds where you only ship necessary library for a given platform.\
+  See [monero-tui](https://github.com/Im-Beast/monero-tui/blob/main/.github/workflows/dev-build.yml) build workflow as an example of doing so.
+  ```ts
+  import { loadDylib, Wallet, WalletManager } from "https://raw.githubusercontent.com/MrCyjaneK/monero_c/master/impls/monero.ts/mod.ts";
+
+  // Try to load dylib from the default lib/* path
+  loadDylib();
+
+  const wm = await WalletManager.new();
+  const wallet = await Wallet.create(wm, "./my_wallet", "password");
+
+  console.log(await wallet.address());
+
+  await wallet.store();
+  ```
+- Just-in-time, where you download and cache the library at runtime.\
+  You can use something like [plug](https://jsr.io/@denosaurs/plug) to achieve the result.
+  ```ts
+  import { dlopen } from "jsr:@denosaurs/plug";
+  // It's recommened to put the monero.ts github link into your import_map to reduce the url clutter
+  import { loadDylib, symbols, Wallet, WalletManager } from "https://raw.githubusercontent.com/MrCyjaneK/monero_c/master/impls/monero.ts/mod.ts";
+
+  // Load dylib loaded by plug
+  const lib = await dlopen(..., symbols);
+  loadDylib(lib);
+
+  const wm = await WalletManager.new();
+  const wallet = await Wallet.create(wm, "./my_wallet", "password");
+
+  console.log(await wallet.address());
+
+  await wallet.store();
+  ```

impls/monero.ts/checksum.ts

@@ -0,0 +1,65 @@
+import { moneroChecksum } from "./checksum_monero.ts";
+import { readCString } from "./src/utils.ts";
+import { dylib, loadDylib } from "./src/bindings.ts";
+
+loadDylib();
+
+export class ChecksumError extends Error {
+  readonly code: number;
+  readonly errors: string[];
+
+  constructor(code: number, errors: string[]) {
+    super("MoneroC binding checksum failed:\n" + errors.join("\n"));
+    this.code = code;
+    this.errors = errors;
+  }
+}
+
+/**
+ * Validates MoneroC checksums
+ * @returns {null} if checksums are correct
+ * @returns {ChecksumError} which contains information about why checksum failed
+ */
+export async function validateChecksum(): Promise<ChecksumError | null> {
+  const cppHeaderHash = await readCString(await dylib.symbols.MONERO_checksum_wallet2_api_c_h(), false);
+  const tsHeaderHash = moneroChecksum.wallet2_api_c_h_sha256;
+
+  const errors: string[] = [];
+
+  let errorCode = 0;
+  if (cppHeaderHash !== tsHeaderHash) {
+    errors.push("ERR: Header file check mismatch");
+    errorCode++;
+  }
+
+  const cppSourceHash = await readCString(await dylib.symbols.MONERO_checksum_wallet2_api_c_cpp(), false);
+  const tsSourceHash = moneroChecksum.wallet2_api_c_cpp_sha256;
+  if (cppSourceHash !== tsSourceHash) {
+    errors.push(`ERR: CPP source file check mismatch ${cppSourceHash} == ${tsSourceHash}`);
+    errorCode++;
+  }
+
+  const cppExportHash = await readCString(await dylib.symbols.MONERO_checksum_wallet2_api_c_exp(), false);
+  const tsExportHash = moneroChecksum.wallet2_api_c_exp_sha256;
+  if (cppExportHash !== tsExportHash) {
+    if (Deno.build.os !== "darwin") {
+      errors.push("WARN: EXP source file check mismatch");
+    } else {
+      errors.push(`ERR: EXP source file check mismatch ${cppExportHash} == ${tsExportHash}`);
+    }
+    errorCode++;
+  }
+
+  if (errorCode) {
+    return new ChecksumError(errorCode, errors);
+  }
+
+  return null;
+}
+
+if (import.meta.main) {
+  const maybeError = await validateChecksum();
+  if (maybeError) {
+    throw maybeError;
+  }
+}

impls/monero.ts/checksum_monero.ts

@@ -0,0 +1,5 @@
+export const moneroChecksum = {
+    wallet2_api_c_h_sha256: "e8db0ef0324a153f5e3ecca4c0db23c54f4576e84988f04bd4f11c1142f9d7ad",
+    wallet2_api_c_cpp_sha256: "dca52ac9ee009fda9fb5726543a454885e61d8eb74fb33112288029ed625bec5-b089f9ee69924882c5d14dd1a6991deb05d9d1cd",
+    wallet2_api_c_exp_sha256: "c8913ac41068f67b57c9b0a3c7dd8973e3c1273b66c2ff0aadb0003931da748c",
+}

impls/monero.ts/checksum_wownero.ts

@@ -0,0 +1,5 @@
+export const wowneroChecksum = {
+    wallet2_api_c_h_sha256: "8a8d386dd5d996c89a0586c55b295ef95ca584bf1ffa26255152b291910a0a77",
+    wallet2_api_c_cpp_sha256: "07d67f34a07869aaa4af6ca04e142dbad2fb1fba0e2ebdefd22bc333fd982e25-e25963cbc11ca0a0fe5eb34b9bd7c72e4f51b795",
+    wallet2_api_c_exp_sha256: "3673e40e1a7115552276d1d541f6e4d5a0fef47c40fff7b988f49923af84c8a4",
+}

impls/monero.ts/deno.jsonc

@@ -0,0 +1,5 @@
+{
+  "fmt": {
+    "lineWidth": 120
+  }
+}

impls/monero.ts/mod.ts

@@ -0,0 +1,6 @@
+export * from "./src/bindings.ts";
+export * from "./src/pending_transaction.ts";
+export * from "./src/transaction_history.ts";
+export * from "./src/transaction_info.ts";
+export * from "./src/wallet.ts";
+export * from "./src/wallet_manager.ts";

impls/monero.ts/src/bindings.ts

@@ -0,0 +1,562 @@
+export const symbols = {
+  "MONERO_WalletManagerFactory_getWalletManager": {
+    nonblocking: true,
+    parameters: [],
+    // void*
+    result: "pointer",
+  },
+
+  //#region WalletManager
+  "MONERO_WalletManager_createWallet": {
+    nonblocking: true,
+    // void* wm_ptr, const char* path, const char* password, const char* language, int networkType
+    parameters: ["pointer", "pointer", "pointer", "pointer", "i32"],
+    // void*
+    result: "pointer",
+  },
+  "MONERO_WalletManager_openWallet": {
+    nonblocking: true,
+    // void* wm_ptr, const char* path, const char* password, int networkType
+    "parameters": ["pointer", "pointer", "pointer", "i32"],
+    // void*
+    result: "pointer",
+  },
+  "MONERO_WalletManager_recoveryWallet": {
+    nonblocking: true,
+    // void* wm_ptr, const char* path, const char* password, const char* mnemonic,
+    // int networkType, uint64_t restoreHeight, uint64_t kdfRounds, const char* seedOffset
+    parameters: ["pointer", "pointer", "pointer", "pointer", "i32", "u64", "u64", "pointer"],
+    // void*
+    result: "pointer",
+  },
+  "MONERO_WalletManager_blockchainHeight": {
+    nonblocking: true,
+    // void* wm_ptr
+    parameters: ["pointer"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_WalletManager_blockchainTargetHeight": {
+    nonblocking: true,
+    // void* wm_ptr
+    parameters: ["pointer"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_WalletManager_setDaemonAddress": {
+    nonblocking: true,
+    // void* wm_ptr, const char* address
+    parameters: ["pointer", "pointer"],
+    // void
+    result: "void",
+  },
+  //#endregion
+
+  //#region Wallet
+  "MONERO_Wallet_init": {
+    nonblocking: true,
+    // void* wallet_ptr, const char* daemon_address, uint64_t upper_transaction_size_limit,
+    // const char* daemon_username, const char* daemon_password, bool use_ssl, bool lightWallet,
+    // const char* proxy_address
+    parameters: ["pointer", "pointer", "u64", "pointer", "pointer", "bool", "bool", "pointer"],
+    // bool
+    result: "bool",
+  },
+  "MONERO_Wallet_init3": {
+    nonblocking: true,
+    // void* wallet_ptr, const char* argv0, const char* default_log_base_name,
+    //  const char* log_path, bool console
+    parameters: ["pointer", "pointer", "pointer", "pointer", "bool"],
+    // void
+    result: "void",
+  },
+  "MONERO_Wallet_setTrustedDaemon": {
+    nonblocking: true,
+    // void* wallet_ptr, bool arg
+    parameters: ["pointer", "bool"],
+    // void
+    result: "void",
+  },
+  "MONERO_Wallet_startRefresh": {
+    nonblocking: true,
+    // void* wallet_ptr
+    parameters: ["pointer"],
+    // void
+    result: "void",
+  },
+  "MONERO_Wallet_refreshAsync": {
+    nonblocking: true,
+    // void* wallet_ptr
+    parameters: ["pointer"],
+    // void
+    result: "void",
+  },
+  "MONERO_Wallet_blockChainHeight": {
+    nonblocking: true,
+    // void* wallet_ptr
+    parameters: ["pointer"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_Wallet_daemonBlockChainHeight": {
+    nonblocking: true,
+    // void* wallet_ptr
+    parameters: ["pointer"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_Wallet_synchronized": {
+    nonblocking: true,
+    // void* wallet_ptr
+    parameters: ["pointer"],
+    // bool
+    result: "bool",
+  },
+  "MONERO_Wallet_store": {
+    nonblocking: true,
+    // void* wallet_ptr, const char* path
+    parameters: ["pointer", "pointer"],
+    // bool
+    result: "bool",
+  },
+  "MONERO_Wallet_address": {
+    nonblocking: true,
+    // void* wallet_ptr, uint64_t accountIndex, uint64_t addressIndex
+    parameters: ["pointer", "u64", "u64"],
+    // char*
+    result: "pointer",
+  },
+  "MONERO_Wallet_balance": {
+    nonblocking: true,
+    // void* wallet_ptr, uint32_t accountIndex
+    parameters: ["pointer", "u32"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_Wallet_unlockedBalance": {
+    nonblocking: true,
+    // void* wallet_ptr, uint32_t accountIndex
+    parameters: ["pointer", "u32"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_Wallet_addSubaddressAccount": {
+    nonblocking: true,
+    // void* wallet_ptr, const char* label
+    parameters: ["pointer", "pointer"],
+    // void
+    result: "void",
+  },
+  "MONERO_Wallet_numSubaddressAccounts": {
+    nonblocking: true,
+    // void* wallet_ptr
+    parameters: ["pointer"],
+    // size_t
+    result: "usize",
+  },
+  "MONERO_Wallet_addSubaddress": {
+    nonblocking: true,
+    // void* wallet_ptr, uint32_t accountIndex, const char* label
+    parameters: ["pointer", "u32", "pointer"],
+    // void
+    result: "void",
+  },
+  "MONERO_Wallet_numSubaddresses": {
+    nonblocking: true,
+    // void* wallet_ptr, uint32_t accountIndex
+    parameters: ["pointer", "u32"],
+    // size_t
+    result: "usize",
+  },
+  "MONERO_Wallet_getSubaddressLabel": {
+    nonblocking: true,
+    // void* wallet_ptr, uint32_t accountIndex, uint32_t addressIndex
+    parameters: ["pointer", "u32", "u32"],
+    // const char*
+    result: "pointer",
+  },
+  "MONERO_Wallet_setSubaddressLabel": {
+    nonblocking: true,
+    // void* wallet_ptr, uint32_t accountIndex, uint32_t addressIndex, const char* label
+    parameters: ["pointer", "u32", "u32", "pointer"],
+    // void
+    result: "void",
+  },
+  "MONERO_Wallet_status": {
+    nonblocking: true,
+    // void* wallet_ptr
+    parameters: ["pointer"],
+    // int
+    result: "i32",
+  },
+  "MONERO_Wallet_errorString": {
+    nonblocking: true,
+    // void* wallet_ptr
+    parameters: ["pointer"],
+    // char*
+    result: "pointer",
+  },
+  "MONERO_Wallet_history": {
+    nonblocking: true,
+    // void* wallet_ptr
+    parameters: ["pointer"],
+    // void*
+    result: "pointer",
+  },
+  "MONERO_Wallet_createTransaction": {
+    nonblocking: true,
+    // void* wallet_ptr, const char* dst_addr, const char* payment_id
+    // uint64_t amount, uint32_t mixin_count, int pendingTransactionPriority,
+    // uint32_t subaddr_account, const char* preferredInputs, const char* separator
+    parameters: ["pointer", "pointer", "pointer", "u64", "u32", "i32", "u32", "pointer", "pointer"],
+    // void*
+    result: "pointer",
+  },
+  "MONERO_Wallet_amountFromString": {
+    nonblocking: true,
+    // const char* amount
+    parameters: ["pointer"],
+    // uint64_t
+    result: "u64",
+  },
+  //#endregion
+
+  //#region TransactionHistory
+  "MONERO_TransactionHistory_count": {
+    nonblocking: true,
+    // void* txHistory_ptr
+    parameters: ["pointer"],
+    // int
+    result: "i32",
+  },
+  "MONERO_TransactionHistory_transaction": {
+    nonblocking: true,
+    // void* txHistory_ptr, int index
+    parameters: ["pointer", "i32"],
+    // void*
+    result: "pointer",
+  },
+  "MONERO_TransactionHistory_transactionById": {
+    nonblocking: true,
+    // void* txHistory_ptr, const char* id
+    parameters: ["pointer", "pointer"],
+    // void*
+    result: "pointer",
+  },
+  "MONERO_TransactionHistory_refresh": {
+    nonblocking: true,
+    // void* txHistory_ptr
+    parameters: ["pointer"],
+    // void
+    result: "void",
+  },
+  "MONERO_TransactionHistory_setTxNote": {
+    nonblocking: true,
+    // void* txHistory_ptr, const char* txid, const char* note
+    parameters: ["pointer", "pointer", "pointer"],
+    // void
+    result: "void",
+  },
+  //#endregion
+
+  //#region TransactionInfo
+  "MONERO_TransactionInfo_direction": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // int
+    result: "i32",
+  },
+  "MONERO_TransactionInfo_isPending": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // bool
+    result: "bool",
+  },
+  "MONERO_TransactionInfo_isFailed": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // bool
+    result: "bool",
+  },
+  "MONERO_TransactionInfo_isCoinbase": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // bool
+    result: "bool",
+  },
+  "MONERO_TransactionInfo_amount": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_TransactionInfo_fee": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_TransactionInfo_blockHeight": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_TransactionInfo_description": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // const char*
+    result: "pointer",
+  },
+  "MONERO_TransactionInfo_subaddrIndex": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // const char*
+    result: "pointer",
+  },
+  "MONERO_TransactionInfo_subaddrAccount": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // uint32_t
+    result: "u32",
+  },
+  "MONERO_TransactionInfo_label": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // const char*
+    result: "pointer",
+  },
+  "MONERO_TransactionInfo_confirmations": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_TransactionInfo_unlockTime": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_TransactionInfo_hash": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // const char*
+    result: "pointer",
+  },
+  "MONERO_TransactionInfo_timestamp": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_TransactionInfo_paymentId": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // const char*
+    result: "pointer",
+  },
+  "MONERO_TransactionInfo_transfers_count": {
+    nonblocking: true,
+    // void* txInfo_ptr
+    parameters: ["pointer"],
+    // int
+    result: "i32",
+  },
+  "MONERO_TransactionInfo_transfers_amount": {
+    nonblocking: true,
+    // void* txInfo_ptr, int index
+    parameters: ["pointer", "i32"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_TransactionInfo_transfers_address": {
+    nonblocking: true,
+    // void* txInfo_ptr, int index
+    parameters: ["pointer", "i32"],
+    // const char*
+    result: "pointer",
+  },
+  //#endregion
+
+  //#region PendingTransaction
+  "MONERO_PendingTransaction_status": {
+    nonblocking: true,
+    // void* pendingTx_ptr
+    parameters: ["pointer"],
+    // int
+    result: "i32",
+  },
+  "MONERO_PendingTransaction_errorString": {
+    nonblocking: true,
+    // void* pendingTx_ptr
+    parameters: ["pointer"],
+    // const char*
+    result: "pointer",
+  },
+  "MONERO_PendingTransaction_commit": {
+    nonblocking: true,
+    // void* pendingTx_ptr, const char* filename, bool overwrite
+    parameters: ["pointer", "pointer", "bool"],
+    // bool
+    result: "bool",
+  },
+  "MONERO_PendingTransaction_commitUR": {
+    nonblocking: true,
+    // void* pendingTx_ptr, int max_fragment_length
+    parameters: ["pointer", "i32"],
+    // const char*
+    result: "pointer",
+  },
+  "MONERO_PendingTransaction_amount": {
+    nonblocking: true,
+    // void* pendingTx_ptr
+    parameters: ["pointer"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_PendingTransaction_dust": {
+    nonblocking: true,
+    // void* pendingTx_ptr
+    parameters: ["pointer"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_PendingTransaction_fee": {
+    nonblocking: true,
+    // void* pendingTx_ptr
+    parameters: ["pointer"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_PendingTransaction_txid": {
+    nonblocking: true,
+    // void* pendingTx_ptr, const char* separator
+    parameters: ["pointer", "pointer"],
+    // const char*
+    result: "pointer",
+  },
+  "MONERO_PendingTransaction_txCount": {
+    nonblocking: true,
+    // void* pendingTx_ptr
+    parameters: ["pointer"],
+    // uint64_t
+    result: "u64",
+  },
+  "MONERO_PendingTransaction_subaddrAccount": {
+    nonblocking: true,
+    // void* pendingTx_ptr, const char* separator
+    parameters: ["pointer", "pointer"],
+    // const char*
+    result: "pointer",
+  },
+  "MONERO_PendingTransaction_subaddrIndices": {
+    nonblocking: true,
+    // void* pendingTx_ptr, const char* separator
+    parameters: ["pointer", "pointer"],
+    // const char*
+    result: "pointer",
+  },
+  "MONERO_PendingTransaction_multisigSignData": {
+    nonblocking: true,
+    // void* pendingTx_ptr
+    parameters: ["pointer"],
+    // const char*
+    result: "pointer",
+  },
+  "MONERO_PendingTransaction_signMultisigTx": {
+    nonblocking: true,
+    // void* pendingTx_ptr
+    parameters: ["pointer"],
+    // void
+    result: "void",
+  },
+  "MONERO_PendingTransaction_signersKeys": {
+    nonblocking: true,
+    // void* pendingTx_ptr
+    parameters: ["pointer"],
+    // const char*
+    result: "pointer",
+  },
+  "MONERO_PendingTransaction_hex": {
+    nonblocking: true,
+    // void* pendingTx_ptr, const char* separator
+    parameters: ["pointer", "pointer"],
+    // const char*
+    result: "pointer",
+  },
+  //#endregion
+
+  //#region Checksum
+  "MONERO_checksum_wallet2_api_c_h": {
+    nonblocking: true,
+    parameters: [],
+    // const char*
+    result: "pointer",
+  },
+  "MONERO_checksum_wallet2_api_c_cpp": {
+    nonblocking: true,
+    parameters: [],
+    // const char*
+    result: "pointer",
+  },
+  "MONERO_checksum_wallet2_api_c_exp": {
+    nonblocking: true,
+    parameters: [],
+    // const char*
+    result: "pointer",
+  },
+  //#endregion
+
+  "MONERO_free": {
+    nonblocking: true,
+    // void* ptr
+    parameters: ["pointer"],
+    // void
+    result: "void",
+  },
+} as const;
+
+type MoneroTsDylib = Deno.DynamicLibrary<typeof symbols>;
+
+export let dylib: MoneroTsDylib;
+export function loadDylib(newDylib?: MoneroTsDylib) {
+  if (newDylib) {
+    dylib = newDylib;
+    return;
+  }
+
+  let libPath: string;
+  switch (Deno.build.os) {
+    case "darwin":
+      libPath = "./lib/monero_libwallet2_api_c.dylib";
+      break;
+    case "android":
+      libPath = "./lib/libmonero_libwallet2_api_c.so";
+      break;
+    case "windows":
+      libPath = "./lib/monero_libwallet2_api_c.dll";
+      break;
+    default:
+      libPath = "./lib/monero_libwallet2_api_c.so";
+      break;
+  }
+
+  dylib = Deno.dlopen(libPath, symbols);
+}

impls/monero.ts/src/pending_transaction.ts

@@ -0,0 +1,81 @@
+import { dylib } from "./bindings.ts";
+import { CString, readCString, type Sanitizer } from "./utils.ts";
+
+export type PendingTransactionPtr = Deno.PointerObject<"transactionInfo">;
+
+export class PendingTransaction {
+  #pendingTxPtr: PendingTransactionPtr;
+  sanitizer?: Sanitizer;
+
+  constructor(pendingTxPtr: PendingTransactionPtr, sanitizer?: Sanitizer) {
+    this.sanitizer = sanitizer;
+    this.#pendingTxPtr = pendingTxPtr;
+  }
+
+  async status(): Promise<number> {
+    return await dylib.symbols.MONERO_PendingTransaction_status(this.#pendingTxPtr);
+  }
+
+  async errorString(): Promise<string | null> {
+    if (!await this.status()) return null;
+
+    const error = await dylib.symbols.MONERO_PendingTransaction_errorString(this.#pendingTxPtr);
+    if (!error) return null;
+
+    return await readCString(error) || null;
+  }
+
+  async throwIfError(sanitize = true): Promise<void> {
+    const maybeError = await this.errorString();
+    if (maybeError) {
+      if (sanitize) this.sanitizer?.();
+      throw new Error(maybeError);
+    }
+  }
+
+  async commit(fileName: string, overwrite: boolean, sanitize = true): Promise<boolean> {
+    const bool = await dylib.symbols.MONERO_PendingTransaction_commit(
+      this.#pendingTxPtr,
+      CString(fileName),
+      overwrite,
+    );
+    await this.throwIfError(sanitize);
+    return bool;
+  }
+
+  async commitUR(maxFragmentLength: number): Promise<string | null> {
+    const result = await dylib.symbols.MONERO_PendingTransaction_commitUR(
+      this.#pendingTxPtr,
+      maxFragmentLength,
+    );
+    if (!result) return null;
+    await this.throwIfError();
+    return await readCString(result) || null;
+  }
+
+  async amount(): Promise<bigint> {
+    return await dylib.symbols.MONERO_PendingTransaction_amount(this.#pendingTxPtr);
+  }
+
+  async dust(): Promise<bigint> {
+    return await dylib.symbols.MONERO_PendingTransaction_dust(this.#pendingTxPtr);
+  }
+
+  async fee(): Promise<bigint> {
+    return await dylib.symbols.MONERO_PendingTransaction_fee(this.#pendingTxPtr);
+  }
+
+  async txid(separator: string, sanitize = true): Promise<string | null> {
+    const result = await dylib.symbols.MONERO_PendingTransaction_txid(
+      this.#pendingTxPtr,
+      CString(separator),
+    );
+    if (!result) return null;
+    await this.throwIfError(sanitize);
+    return await readCString(result) || null;
+  }
+
+  async txCount(): Promise<bigint> {
+    return await dylib.symbols.MONERO_PendingTransaction_txCount(this.#pendingTxPtr);
+  }
+}

impls/monero.ts/src/transaction_history.ts

@@ -0,0 +1,38 @@
+import { dylib } from "./bindings.ts";
+import { TransactionInfo, TransactionInfoPtr } from "./transaction_info.ts";
+import { CString } from "./utils.ts";
+
+export type TransactionHistoryPtr = Deno.PointerObject<"transactionHistory">;
+
+export class TransactionHistory {
+  #txHistoryPtr: TransactionHistoryPtr;
+
+  constructor(txHistoryPtr: TransactionHistoryPtr) {
+    this.#txHistoryPtr = txHistoryPtr;
+  }
+
+  async count(): Promise<number> {
+    return await dylib.symbols.MONERO_TransactionHistory_count(this.#txHistoryPtr);
+  }
+
+  async transaction(index: number): Promise<TransactionInfo> {
+    return new TransactionInfo(
+      (await dylib.symbols.MONERO_TransactionHistory_transaction(
+        this.#txHistoryPtr,
+        index,
+      )) as TransactionInfoPtr,
+    );
+  }
+
+  async refresh(): Promise<void> {
+    await dylib.symbols.MONERO_TransactionHistory_refresh(this.#txHistoryPtr);
+  }
+
+  async setTxNote(transactionId: string, note: string): Promise<void> {
+    await dylib.symbols.MONERO_TransactionHistory_setTxNote(
+      this.#txHistoryPtr,
+      CString(transactionId),
+      CString(note),
+    );
+  }
+}

impls/monero.ts/src/transaction_info.ts

@@ -0,0 +1,104 @@
+import { dylib } from "./bindings.ts";
+import { readCString, Sanitizer } from "./utils.ts";
+
+export type TransactionInfoPtr = Deno.PointerObject<"transactionInfo">;
+
+export class TransactionInfo {
+  #txInfoPtr: TransactionInfoPtr;
+  sanitizer?: Sanitizer;
+
+  constructor(txInfoPtr: TransactionInfoPtr, sanitizer?: Sanitizer) {
+    this.#txInfoPtr = txInfoPtr;
+    this.sanitizer = sanitizer;
+  }
+
+  async direction(): Promise<"in" | "out"> {
+    switch (await dylib.symbols.MONERO_TransactionInfo_direction(this.#txInfoPtr)) {
+      case 0:
+        return "in";
+      case 1:
+        return "out";
+      default:
+        await this.sanitizer?.();
+        throw new Error("Invalid TransactionInfo direction");
+    }
+  }
+
+  async isPending(): Promise<boolean> {
+    return await dylib.symbols.MONERO_TransactionInfo_isPending(this.#txInfoPtr);
+  }
+
+  async isFailed(): Promise<boolean> {
+    return await dylib.symbols.MONERO_TransactionInfo_isFailed(this.#txInfoPtr);
+  }
+
+  async isCoinbase(): Promise<boolean> {
+    return await dylib.symbols.MONERO_TransactionInfo_isCoinbase(this.#txInfoPtr);
+  }
+
+  async amount(): Promise<bigint> {
+    return await dylib.symbols.MONERO_TransactionInfo_amount(this.#txInfoPtr);
+  }
+
+  async fee(): Promise<bigint> {
+    return await dylib.symbols.MONERO_TransactionInfo_fee(this.#txInfoPtr);
+  }
+
+  async blockHeight(): Promise<bigint> {
+    return await dylib.symbols.MONERO_TransactionInfo_blockHeight(this.#txInfoPtr);
+  }
+
+  async description(): Promise<string> {
+    const description = await dylib.symbols.MONERO_TransactionInfo_description(this.#txInfoPtr);
+    return await readCString(description) || "";
+  }
+
+  async subaddrIndex(): Promise<string> {
+    const subaddrIndex = await dylib.symbols.MONERO_TransactionInfo_subaddrIndex(this.#txInfoPtr);
+    return await readCString(subaddrIndex) || "";
+  }
+
+  async subaddrAccount(): Promise<number> {
+    return await dylib.symbols.MONERO_TransactionInfo_subaddrAccount(this.#txInfoPtr);
+  }
+
+  async label(): Promise<string> {
+    const label = await dylib.symbols.MONERO_TransactionInfo_label(this.#txInfoPtr);
+    return await readCString(label) || "";
+  }
+
+  async confirmations(): Promise<bigint> {
+    return await dylib.symbols.MONERO_TransactionInfo_confirmations(this.#txInfoPtr);
+  }
+
+  async unlockTime(): Promise<bigint> {
+    return await dylib.symbols.MONERO_TransactionInfo_unlockTime(this.#txInfoPtr);
+  }
+
+  async hash(): Promise<string> {
+    const hash = await dylib.symbols.MONERO_TransactionInfo_hash(this.#txInfoPtr);
+    return await readCString(hash) || "";
+  }
+
+  async timestamp(): Promise<bigint> {
+    return await dylib.symbols.MONERO_TransactionInfo_timestamp(this.#txInfoPtr);
+  }
+
+  async paymentId(): Promise<string> {
+    const paymentId = await dylib.symbols.MONERO_TransactionInfo_paymentId(this.#txInfoPtr);
+    return await readCString(paymentId) || "";
+  }
+
+  async transfersCount(): Promise<number> {
+    return await dylib.symbols.MONERO_TransactionInfo_transfers_count(this.#txInfoPtr);
+  }
+
+  async transfersAmount(index: number): Promise<bigint> {
+    return await dylib.symbols.MONERO_TransactionInfo_transfers_amount(this.#txInfoPtr, index);
+  }
+
+  async transfersAddress(index: number): Promise<string> {
+    const transfersAddress = await dylib.symbols.MONERO_TransactionInfo_transfers_address(this.#txInfoPtr, index);
+    return await readCString(transfersAddress) || "";
+  }
+}

impls/monero.ts/src/utils.ts

@@ -0,0 +1,25 @@
+import { dylib } from "../mod.ts";
+
+export type Sanitizer = () => void | PromiseLike<void>;
+
+const textEncoder = new TextEncoder();
+export function CString(string: string): Deno.PointerValue<string> {
+  return Deno.UnsafePointer.of(textEncoder.encode(`${string}\x00`));
+}
+
+/**
+ * This method reads string from the given pointer and frees the string.
+ *
+ * SAFETY: Do not use readCString twice on the same pointer as it will cause double free\
+ *          If you want to read CString without freeing it set the {@linkcode free} parameter to false
+ */
+export async function readCString(pointer: Deno.PointerObject, free?: boolean): Promise<string>;
+export async function readCString(pointer: Deno.PointerValue, free?: boolean): Promise<string | null>;
+export async function readCString(pointer: Deno.PointerValue, free = true): Promise<string | null> {
+  if (!pointer) return null;
+  const string = new Deno.UnsafePointerView(pointer).getCString();
+  if (free) {
+    await dylib.symbols.MONERO_free(pointer);
+  }
+  return string;
+}

impls/monero.ts/src/wallet.ts

@@ -0,0 +1,304 @@
+import { dylib } from "./bindings.ts";
+import { CString, readCString, Sanitizer } from "./utils.ts";
+import { WalletManager, type WalletManagerPtr } from "./wallet_manager.ts";
+import { TransactionHistory, TransactionHistoryPtr } from "./transaction_history.ts";
+
+import { PendingTransaction } from "./pending_transaction.ts";
+import { PendingTransactionPtr } from "./pending_transaction.ts";
+
+export type WalletPtr = Deno.PointerObject<"walletManager">;
+
+export class Wallet {
+  #walletManagerPtr: WalletManagerPtr;
+  #walletPtr: WalletPtr;
+  sanitizer?: Sanitizer;
+
+  constructor(walletManagerPtr: WalletManager, walletPtr: WalletPtr, sanitizer?: Sanitizer) {
+    this.#walletPtr = walletPtr;
+    this.#walletManagerPtr = walletManagerPtr.getPointer();
+    this.sanitizer = sanitizer;
+  }
+
+  async store(path = ""): Promise<boolean> {
+    const bool = await dylib.symbols.MONERO_Wallet_store(this.#walletPtr, CString(path));
+    await this.throwIfError();
+    return bool;
+  }
+
+  async initWallet(): Promise<void> {
+    await this.init();
+    await this.setTrustedDaemon(true);
+    await this.setDaemonAddress("http://nodex.monerujo.io:18081");
+    await this.startRefresh();
+    await this.refreshAsync();
+    await this.throwIfError();
+  }
+
+  async setDaemonAddress(address: string): Promise<void> {
+    await dylib.symbols.MONERO_WalletManager_setDaemonAddress(
+      this.#walletManagerPtr,
+      CString(address),
+    );
+  }
+
+  async startRefresh(): Promise<void> {
+    await dylib.symbols.MONERO_Wallet_startRefresh(this.#walletPtr);
+    await this.throwIfError();
+  }
+
+  async refreshAsync(): Promise<void> {
+    await dylib.symbols.MONERO_Wallet_refreshAsync(this.#walletPtr);
+    await this.throwIfError();
+  }
+
+  async init(): Promise<boolean> {
+    const bool = await dylib.symbols.MONERO_Wallet_init(
+      this.#walletPtr,
+      CString("http://nodex.monerujo.io:18081"),
+      0n,
+      CString(""),
+      CString(""),
+      false,
+      false,
+      CString(""),
+    );
+    await this.throwIfError();
+    return bool;
+  }
+
+  async setTrustedDaemon(value: boolean): Promise<void> {
+    await dylib.symbols.MONERO_Wallet_setTrustedDaemon(this.#walletPtr, value);
+  }
+
+  static async create(
+    walletManager: WalletManager,
+    path: string,
+    password: string,
+    sanitizeError = true,
+  ): Promise<Wallet> {
+    // We assign holder of the pointer in Wallet constructor
+    const walletManagerPtr = walletManager.getPointer();
+
+    const walletPtr = await dylib.symbols.MONERO_WalletManager_createWallet(
+      walletManagerPtr,
+      CString(path),
+      CString(password),
+      CString("English"),
+      0,
+    );
+
+    const wallet = new Wallet(walletManager, walletPtr as WalletPtr, walletManager.sanitizer);
+    await wallet.throwIfError(sanitizeError);
+    await wallet.initWallet();
+
+    return wallet;
+  }
+
+  static async open(
+    walletManager: WalletManager,
+    path: string,
+    password: string,
+    sanitizeError = true,
+  ): Promise<Wallet> {
+    // We assign holder of the pointer in Wallet constructor
+    const walletManagerPtr = walletManager.getPointer();
+
+    const walletPtr = await dylib.symbols.MONERO_WalletManager_openWallet(
+      walletManagerPtr,
+      CString(path),
+      CString(password),
+      0,
+    );
+
+    const wallet = new Wallet(walletManager, walletPtr as WalletPtr, walletManager.sanitizer);
+    await wallet.throwIfError(sanitizeError);
+    await wallet.initWallet();
+
+    return wallet;
+  }
+
+  static async recover(
+    walletManager: WalletManager,
+    path: string,
+    password: string,
+    mnemonic: string,
+    restoreHeight: bigint,
+    seedOffset: string = "",
+    sanitizeError = true,
+  ): Promise<Wallet> {
+    // We assign holder of the pointer in Wallet constructor
+    const walletManagerPtr = walletManager.getPointer();
+
+    const walletPtr = await dylib.symbols.MONERO_WalletManager_recoveryWallet(
+      walletManagerPtr,
+      CString(path),
+      CString(password),
+      CString(mnemonic),
+      0,
+      restoreHeight,
+      1n,
+      CString(seedOffset),
+    );
+
+    const wallet = new Wallet(walletManager, walletPtr as WalletPtr, walletManager.sanitizer);
+    await wallet.throwIfError(sanitizeError);
+    await wallet.initWallet();
+
+    return wallet;
+  }
+
+  async address(accountIndex = 0n, addressIndex = 0n): Promise<string> {
+    const address = await dylib.symbols.MONERO_Wallet_address(this.#walletPtr, accountIndex, addressIndex);
+    if (!address) {
+      const error = await this.errorString();
+      throw new Error(`Failed getting address from a wallet: ${error ?? "<Error unknown>"}`);
+    }
+    return await readCString(address);
+  }
+
+  async balance(accountIndex = 0): Promise<bigint> {
+    return await dylib.symbols.MONERO_Wallet_balance(this.#walletPtr, accountIndex);
+  }
+
+  async unlockedBalance(accountIndex = 0): Promise<bigint> {
+    return await dylib.symbols.MONERO_Wallet_unlockedBalance(this.#walletPtr, accountIndex);
+  }
+
+  status(): Promise<number> {
+    return dylib.symbols.MONERO_Wallet_status(this.#walletPtr);
+  }
+
+  async errorString(): Promise<string | null> {
+    if (!await this.status()) return null;
+
+    const error = await dylib.symbols.MONERO_Wallet_errorString(this.#walletPtr);
+    if (!error) return null;
+
+    return await readCString(error) || null;
+  }
+
+  async throwIfError(sanitize = true): Promise<void> {
+    const maybeError = await this.errorString();
+    if (maybeError) {
+      if (sanitize) this.sanitizer?.();
+      throw new Error(maybeError);
+    }
+  }
+
+  async synchronized(): Promise<boolean> {
+    const synchronized = await dylib.symbols.MONERO_Wallet_synchronized(this.#walletPtr);
+    await this.throwIfError();
+    return synchronized;
+  }
+
+  async blockChainHeight(): Promise<bigint> {
+    const height = await dylib.symbols.MONERO_Wallet_blockChainHeight(this.#walletPtr);
+    await this.throwIfError();
+    return height;
+  }
+
+  async daemonBlockChainHeight(): Promise<bigint> {
+    const height = await dylib.symbols.MONERO_Wallet_daemonBlockChainHeight(this.#walletPtr);
+    await this.throwIfError();
+    return height;
+  }
+
+  async managerBlockChainHeight(): Promise<bigint> {
+    const height = await dylib.symbols.MONERO_WalletManager_blockchainHeight(this.#walletManagerPtr);
+    await this.throwIfError();
+    return height;
+  }
+
+  async managerTargetBlockChainHeight(): Promise<bigint> {
+    const height = await dylib.symbols.MONERO_WalletManager_blockchainTargetHeight(this.#walletManagerPtr);
+    await this.throwIfError();
+    return height;
+  }
+
+  async addSubaddressAccount(label: string): Promise<void> {
+    await dylib.symbols.MONERO_Wallet_addSubaddressAccount(
+      this.#walletPtr,
+      CString(label),
+    );
+    await this.throwIfError();
+  }
+
+  async numSubaddressAccounts(): Promise<bigint> {
+    const accountsLen = await dylib.symbols.MONERO_Wallet_numSubaddressAccounts(this.#walletPtr);
+    await this.throwIfError();
+    return accountsLen;
+  }
+
+  async addSubaddress(accountIndex: number, label: string): Promise<void> {
+    await dylib.symbols.MONERO_Wallet_addSubaddress(
+      this.#walletPtr,
+      accountIndex,
+      CString(label),
+    );
+    await this.throwIfError();
+  }
+
+  async numSubaddresses(accountIndex: number): Promise<bigint> {
+    const address = await dylib.symbols.MONERO_Wallet_numSubaddresses(
+      this.#walletPtr,
+      accountIndex,
+    );
+    await this.throwIfError();
+    return address;
+  }
+
+  async getSubaddressLabel(accountIndex: number, addressIndex: number): Promise<string> {
+    const label = await dylib.symbols.MONERO_Wallet_getSubaddressLabel(this.#walletPtr, accountIndex, addressIndex);
+    if (!label) {
+      const error = await this.errorString();
+      throw new Error(`Failed getting subaddress label from a wallet: ${error ?? "<Error unknown>"}`);
+    }
+    return await readCString(label);
+  }
+
+  async setSubaddressLabel(accountIndex: number, addressIndex: number, label: string): Promise<void> {
+    await dylib.symbols.MONERO_Wallet_setSubaddressLabel(
+      this.#walletPtr,
+      accountIndex,
+      addressIndex,
+      CString(label),
+    );
+    await this.throwIfError();
+  }
+
+  async getHistory(): Promise<TransactionHistory> {
+    const transactionHistoryPointer = await dylib.symbols.MONERO_Wallet_history(this.#walletPtr);
+    await this.throwIfError();
+    return new TransactionHistory(transactionHistoryPointer as TransactionHistoryPtr);
+  }
+
+  async createTransaction(
+    destinationAddress: string,
+    amount: bigint,
+    pendingTransactionPriority = 0 | 1 | 2 | 3,
+    subaddressAccount: number,
+    sanitize = true,
+    prefferedInputs = "",
+    mixinCount = 0,
+    paymentId = "",
+    separator = ",",
+  ): Promise<PendingTransaction> {
+    const pendingTxPtr = await dylib.symbols.MONERO_Wallet_createTransaction(
+      this.#walletPtr,
+      CString(destinationAddress),
+      CString(paymentId),
+      amount,
+      mixinCount,
+      pendingTransactionPriority,
+      subaddressAccount,
+      CString(prefferedInputs),
+      CString(separator),
+    );
+    await this.throwIfError(sanitize);
+    return new PendingTransaction(pendingTxPtr as PendingTransactionPtr);
+  }
+
+  async amountFromString(amount: string): Promise<bigint> {
+    return await dylib.symbols.MONERO_Wallet_amountFromString(CString(amount));
+  }
+}

impls/monero.ts/src/wallet_manager.ts

@@ -0,0 +1,27 @@
+import { dylib } from "./bindings.ts";
+import { Sanitizer } from "./utils.ts";
+
+export type WalletManagerPtr = Deno.PointerObject<"walletManager">;
+
+export class WalletManager {
+  #ptr: WalletManagerPtr;
+  sanitizer?: Sanitizer;
+
+  constructor(walletManagerPtr: WalletManagerPtr, sanitizer?: Sanitizer) {
+    this.#ptr = walletManagerPtr;
+    this.sanitizer = sanitizer;
+  }
+
+  getPointer(): WalletManagerPtr {
+    return this.#ptr;
+  }
+
+  static async new(sanitizer?: Sanitizer) {
+    const ptr = await dylib.symbols.MONERO_WalletManagerFactory_getWalletManager();
+    if (!ptr) {
+      sanitizer?.();
+      throw new Error("Failed retrieving wallet manager");
+    }
+    return new WalletManager(ptr as WalletManagerPtr, sanitizer);
+  }
+}