Create a minified browser build compatible with next.js

ts/.gitignore

@@ -0,0 +1 @@
+.rollup.cache/

ts/package.json

@@ -4,6 +4,7 @@
   "description": "Anchor client",
   "module": "./dist/esm/index.js",
   "main": "./dist/cjs/index.js",
+  "browser": "./dist/browser/index.js",
   "license": "(MIT OR Apache-2.0)",
   "types": "dist/cjs/index.d.ts",
   "homepage": "https://github.com/project-serum/anchor#readme",
@@ -21,8 +22,9 @@
     "node": ">=11"
   },
   "scripts": {
-    "build": "rm -rf dist/ && yarn build:node",
+    "build": "rimraf dist/ && yarn build:node && yarn build:browser",
     "build:node": "tsc && tsc -p tsconfig.cjs.json",
+    "build:browser": "rollup --config",
     "lint:fix": "prettier src/** tests/** -w",
     "lint": "prettier src/** tests/** --check",
     "watch": "tsc -p tsconfig.cjs.json --watch",
@@ -36,7 +38,7 @@
     "base64-js": "^1.5.1",
     "bn.js": "^5.1.2",
     "bs58": "^4.0.1",
-    "buffer-layout": "^1.2.0",
+    "buffer-layout": "^1.2.2",
     "camelcase": "^5.3.1",
     "crypto-hash": "^1.3.0",
     "eventemitter3": "^4.0.7",
@@ -49,6 +51,10 @@
   "devDependencies": {
     "@commitlint/cli": "^11.0.0",
     "@commitlint/config-conventional": "^11.0.0",
+    "@rollup/plugin-commonjs": "^21.0.1",
+    "@rollup/plugin-node-resolve": "^13.0.6",
+    "@rollup/plugin-replace": "^3.0.0",
+    "@rollup/plugin-typescript": "^8.3.0",
     "@types/bn.js": "^4.11.6",
     "@types/bs58": "^4.0.1",
     "@types/crypto-hash": "^1.1.2",
@@ -63,9 +69,13 @@
     "jest-config": "27.3.1",
     "lint-staged": "^10.5.0",
     "prettier": "^2.1.2",
+    "rimraf": "^3.0.2",
+    "rollup": "^2.60.2",
+    "rollup-plugin-terser": "^7.0.2",
     "ts-jest": "^27.0.7",
     "ts-jest-resolver": "^2.0.0",
     "ts-node": "^9.0.0",
+    "tslib": "^2.3.1",
     "typedoc": "^0.22.10",
     "typescript": "^4.5.2"
   }

ts/rollup.config.ts

@@ -0,0 +1,54 @@
+import nodeResolve from "@rollup/plugin-node-resolve";
+import typescript from "@rollup/plugin-typescript";
+import replace from "@rollup/plugin-replace";
+import commonjs from "@rollup/plugin-commonjs";
+import { terser } from "rollup-plugin-terser";
+
+const env = process.env.NODE_ENV;
+
+export default {
+  input: "src/index.ts",
+  plugins: [
+    commonjs(),
+    nodeResolve({
+      browser: true,
+      extensions: [".js", ".ts"],
+      dedupe: ["bn.js", "buffer"],
+      preferBuiltins: false,
+    }),
+    typescript({
+      tsconfig: "./tsconfig.base.json",
+      moduleResolution: "node",
+      outDir: "types",
+      target: "es2019",
+      outputToFilesystem: false,
+    }),
+    replace({
+      preventAssignment: true,
+      values: {
+        "process.env.NODE_ENV": JSON.stringify(env),
+        "process.env.BROWSER": JSON.stringify(true),
+      },
+    }),
+    terser(),
+  ],
+  external: [
+    "@project-serum/borsh",
+    "@solana/web3.js",
+    "assert",
+    "base64-js",
+    "bn.js",
+    "bs58",
+    "buffer",
+    "camelcase",
+    "eventemitter3",
+    "js-sha256",
+    "pako",
+    "toml",
+  ],
+  output: {
+    file: "dist/browser/index.js",
+    format: "es",
+    sourcemap: true,
+  },
+};

ts/src/index.ts

@@ -1,11 +1,8 @@
+import { isBrowser } from "./utils/common.js";
+
 export { default as BN } from "bn.js";
 export * as web3 from "@solana/web3.js";
-export {
-  default as Provider,
-  getProvider,
-  setProvider,
-  NodeWallet as Wallet,
-} from "./provider.js";
+export { default as Provider, getProvider, setProvider } from "./provider.js";
 export {
   default as Coder,
   InstructionCoder,
@@ -17,6 +14,11 @@ export {
 export * from "./error.js";
 export { Instruction } from "./coder/instruction.js";
 export { Idl } from "./idl.js";
-export { default as workspace } from "./workspace.js";
+
 export * as utils from "./utils/index.js";
 export * from "./program/index.js";
+
+if (!isBrowser) {
+  exports.workspace = require("./workspace.js");
+  exports.Wallet = require("./nodewallet.js");
+}

ts/src/nodewallet.ts

@@ -0,0 +1,39 @@
+import { Buffer } from "buffer";
+import { Keypair, PublicKey, Transaction } from "@solana/web3.js";
+import { Wallet } from "./provider";
+/**
+ * Node only wallet.
+ */
+export default class NodeWallet implements Wallet {
+  constructor(readonly payer: Keypair) {}
+
+  static local(): NodeWallet {
+    const process = require("process");
+    const payer = Keypair.fromSecretKey(
+      Buffer.from(
+        JSON.parse(
+          require("fs").readFileSync(process.env.ANCHOR_WALLET, {
+            encoding: "utf-8",
+          })
+        )
+      )
+    );
+    return new NodeWallet(payer);
+  }
+
+  async signTransaction(tx: Transaction): Promise<Transaction> {
+    tx.partialSign(this.payer);
+    return tx;
+  }
+
+  async signAllTransactions(txs: Transaction[]): Promise<Transaction[]> {
+    return txs.map((t) => {
+      t.partialSign(this.payer);
+      return t;
+    });
+  }
+
+  get publicKey(): PublicKey {
+    return this.payer.publicKey;
+  }
+}

ts/src/program/index.ts

@@ -1,6 +1,6 @@
 import { inflate } from "pako";
 import { PublicKey } from "@solana/web3.js";
-import Provider from "../provider.js";
+import Provider, { getProvider } from "../provider.js";
 import { Idl, idlAddress, decodeIdlAccount } from "../idl.js";
 import Coder from "../coder/index.js";
 import NamespaceFactory, {
@@ -11,7 +11,6 @@ import NamespaceFactory, {
   StateClient,
   SimulateNamespace,
 } from "./namespace/index.js";
-import { getProvider } from "../index.js";
 import { utf8 } from "../utils/bytes/index.js";
 import { EventManager } from "./event.js";
 import { Address, translateAddress } from "./common.js";

ts/src/program/namespace/account.ts

@@ -10,15 +10,14 @@ import {
   Commitment,
   GetProgramAccountsFilter,
 } from "@solana/web3.js";
-import Provider from "../../provider.js";
+import Provider, { getProvider } from "../../provider.js";
 import { Idl, IdlTypeDef } from "../../idl.js";
 import Coder, {
   ACCOUNT_DISCRIMINATOR_SIZE,
   accountSize,
   AccountsCoder,
 } from "../../coder/index.js";
 import { Subscription, Address, translateAddress } from "../common.js";
-import { getProvider } from "../../index.js";
 import { AllAccountsMap, IdlTypes, TypeDef } from "./types.js";
 import * as pubkeyUtil from "../../utils/pubkey.js";
 import * as rpcUtil from "../../utils/rpc.js";

ts/src/program/namespace/state.ts

@@ -6,15 +6,14 @@ import {
   Commitment,
   AccountMeta,
 } from "@solana/web3.js";
-import Provider from "../../provider.js";
+import Provider, { getProvider } from "../../provider.js";
 import { Idl, IdlInstruction, IdlStateMethod, IdlTypeDef } from "../../idl.js";
 import Coder, { stateDiscriminator } from "../../coder/index.js";
 import {
   RpcNamespace,
   InstructionNamespace,
   TransactionNamespace,
 } from "./index.js";
-import { getProvider } from "../../index.js";
 import { Subscription, validateAccounts, parseIdlErrors } from "../common.js";
 import {
   findProgramAddressSync,

ts/src/provider.ts

@@ -1,7 +1,5 @@
-import { Buffer } from "buffer";
 import {
   Connection,
-  Keypair,
   Signer,
   PublicKey,
   Transaction,
@@ -46,11 +44,15 @@ export default class Provider {
    * (This api is for Node only.)
    */
   static local(url?: string, opts?: ConfirmOptions): Provider {
+    if (isBrowser) {
+      throw new Error(`Provider local is not available on browser.`);
+    }
     opts = opts ?? Provider.defaultOptions();
     const connection = new Connection(
       url ?? "http://localhost:8899",
       opts.preflightCommitment
     );
+    const NodeWallet = require("./nodewallet.js");
     const wallet = NodeWallet.local();
     return new Provider(connection, wallet, opts);
   }
@@ -73,6 +75,7 @@ export default class Provider {
     }
     const options = Provider.defaultOptions();
     const connection = new Connection(url, options.commitment);
+    const NodeWallet = require("./nodewallet.js");
     const wallet = NodeWallet.local();
 
     return new Provider(connection, wallet, options);
@@ -223,43 +226,6 @@ export interface Wallet {
   publicKey: PublicKey;
 }
 
-/**
- * Node only wallet.
- */
-export class NodeWallet implements Wallet {
-  constructor(readonly payer: Keypair) {}
-
-  static local(): NodeWallet {
-    const process = require("process");
-    const payer = Keypair.fromSecretKey(
-      Buffer.from(
-        JSON.parse(
-          require("fs").readFileSync(process.env.ANCHOR_WALLET, {
-            encoding: "utf-8",
-          })
-        )
-      )
-    );
-    return new NodeWallet(payer);
-  }
-
-  async signTransaction(tx: Transaction): Promise<Transaction> {
-    tx.partialSign(this.payer);
-    return tx;
-  }
-
-  async signAllTransactions(txs: Transaction[]): Promise<Transaction[]> {
-    return txs.map((t) => {
-      t.partialSign(this.payer);
-      return t;
-    });
-  }
-
-  get publicKey(): PublicKey {
-    return this.payer.publicKey;
-  }
-}
-
 // Copy of Connection.simulateTransaction that takes a commitment parameter.
 async function simulateTransaction(
   connection: Connection,

ts/src/utils/bytes/utf8.ts

@@ -1,15 +1,16 @@
+import { isBrowser } from "../common";
+
 export function decode(array: Uint8Array): string {
-  const decoder =
-    typeof TextDecoder === "undefined"
-      ? new (require("util").TextDecoder)("utf-8") // Node.
-      : new TextDecoder("utf-8"); // Browser.
+  const decoder = isBrowser
+    ? new TextDecoder("utf-8") // Browser https://caniuse.com/textencoder
+    : new (require("util").TextDecoder)("utf-8"); // Node.
+
   return decoder.decode(array);
 }
 
 export function encode(input: string): Uint8Array {
-  const encoder =
-    typeof TextEncoder === "undefined"
-      ? new (require("util").TextEncoder)("utf-8") // Node.
-      : new TextEncoder(); // Browser.
+  const encoder = isBrowser
+    ? new TextEncoder() // Browser.
+    : new (require("util").TextEncoder)("utf-8"); // Node.
   return encoder.encode(input);
 }

ts/src/utils/common.ts

@@ -3,7 +3,8 @@
  * false if in a Node process or electron app.
  */
 export const isBrowser =
-  typeof window !== "undefined" && !window.process?.hasOwnProperty("type");
+  process.env.BROWSER ||
+  (typeof window !== "undefined" && !window.process?.hasOwnProperty("type"));
 
 /**
  * Splits an array into chunks

ts/tsconfig.base.json

@@ -0,0 +1,28 @@
+{
+  "include": [
+    "./src/**/*"
+  ],
+  "compilerOptions": {
+    "sourceMap": true,
+    "declaration": true,
+    "declarationMap": true,
+    "allowSyntheticDefaultImports": true,
+    "experimentalDecorators": true,
+    "emitDecoratorMetadata": true,
+    "noImplicitAny": false,
+    "strictNullChecks": true,
+    "esModuleInterop": true,
+    "resolveJsonModule": true,
+    "composite": true,
+    "baseUrl": ".",
+    "typeRoots": [
+      "types/",
+      "node_modules/@types"
+    ],
+    "paths": {
+      "@solana/web3.js": [
+        "./node_modules/@solana/web3.js/lib"
+      ]
+    }
+  }
+}

ts/tsconfig.cjs.json

@@ -1,10 +1,8 @@
-
 {
-  "extends": "./tsconfig.json",
+  "extends": "./tsconfig.base.json",
   "compilerOptions": {
     "module": "commonjs",
     "target": "es2019",
-
     "outDir": "dist/cjs/",
     "rootDir": "./src"
   }