program / interface / js: Port everything from spl

clients/js-legacy/.eslintignore

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+docs
+lib
+test-ledger
+
+package-lock.json

clients/js-legacy/.eslintrc

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+{
+    "root": true,
+    "extends": [
+        "eslint:recommended",
+        "plugin:@typescript-eslint/recommended",
+        "plugin:prettier/recommended",
+        "plugin:require-extensions/recommended"
+    ],
+    "parser": "@typescript-eslint/parser",
+    "plugins": [
+        "@typescript-eslint",
+        "prettier",
+        "require-extensions"
+    ],
+    "rules": {
+        "@typescript-eslint/ban-ts-comment": "off",
+        "@typescript-eslint/no-explicit-any": "off",
+        "@typescript-eslint/no-unused-vars": "off",
+        "@typescript-eslint/no-empty-interface": "off",
+        "@typescript-eslint/consistent-type-imports": "error"
+    },
+    "overrides": [
+        {
+            "files": [
+                "examples/**/*",
+                "test/**/*"
+            ],
+            "rules": {
+                "require-extensions/require-extensions": "off",
+                "require-extensions/require-index": "off"
+            }
+        }
+    ]
+}

clients/js-legacy/.gitignore

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+.idea
+.vscode
+.DS_Store
+
+node_modules
+
+pnpm-lock.yaml
+yarn.lock
+
+docs
+lib
+test-ledger
+*.tsbuildinfo

clients/js-legacy/.mocharc.json

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+{
+    "extension": ["ts"],
+    "node-option": ["experimental-specifier-resolution=node", "loader=ts-node/esm"],
+    "timeout": 5000
+}

clients/js-legacy/LICENSE

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clients/js-legacy/README.md

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+# `@solana/spl-token-metadata`
+
+A TypeScript interface describing the instructions required for a program to implement to be considered a "token-metadata" program for SPL token mints. The interface can be implemented by any program.
+
+## Links
+
+- [TypeScript Docs](https://solana-labs.github.io/solana-program-library/token-metadata/js/)
+- [FAQs (Frequently Asked Questions)](#faqs)
+- [Install](#install)
+- [Build from Source](#build-from-source)
+
+## FAQs
+
+### How can I get support?
+
+Please ask questions in the Solana Stack Exchange: https://solana.stackexchange.com/
+
+If you've found a bug or you'd like to request a feature, please
+[open an issue](https://github.com/solana-labs/solana-program-library/issues/new).
+
+## Install
+
+```shell
+npm install --save @solana/spl-token-metadata @solana/web3.js@1
+```
+_OR_
+```shell
+yarn add @solana/spl-token-metadata @solana/web3.js@1
+```
+
+## Build from Source
+
+0. Prerequisites
+
+* Node 16+
+* NPM 8+
+
+1. Clone the project:
+```shell
+git clone https://github.com/solana-labs/solana-program-library.git
+```
+
+2. Navigate to the library:
+```shell
+cd solana-program-library/token-metadata/js
+```
+
+3. Install the dependencies:
+```shell
+npm install
+```
+
+4. Build the library:
+```shell
+npm run build
+```
+
+5. Build the on-chain programs:
+```shell
+npm run test:build-programs
+```

clients/js-legacy/package.json

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+{
+    "name": "@solana/spl-token-metadata",
+    "description": "SPL Token Metadata Interface JS API",
+    "version": "0.1.6",
+    "author": "Solana Labs Maintainers <[email protected]>",
+    "repository": "https://github.com/solana-labs/solana-program-library",
+    "license": "Apache-2.0",
+    "type": "module",
+    "sideEffects": false,
+    "engines": {
+        "node": ">=16"
+    },
+    "files": [
+        "lib",
+        "src",
+        "LICENSE",
+        "README.md"
+    ],
+    "publishConfig": {
+        "access": "public"
+    },
+    "main": "./lib/cjs/index.js",
+    "module": "./lib/esm/index.js",
+    "types": "./lib/types/index.d.ts",
+    "exports": {
+        "types": "./lib/types/index.d.ts",
+        "require": "./lib/cjs/index.js",
+        "import": "./lib/esm/index.js"
+    },
+    "scripts": {
+        "build": "tsc --build --verbose tsconfig.all.json",
+        "clean": "shx rm -rf lib **/*.tsbuildinfo || true",
+        "deploy": "npm run deploy:docs",
+        "deploy:docs": "npm run docs && gh-pages --dest token-metadata/js --dist docs --dotfiles",
+        "docs": "shx rm -rf docs && typedoc && shx cp .nojekyll docs/",
+        "lint": "eslint --max-warnings 0 .",
+        "lint:fix": "eslint --fix .",
+        "nuke": "shx rm -rf node_modules package-lock.json || true",
+        "postbuild": "shx echo '{ \"type\": \"commonjs\" }' > lib/cjs/package.json",
+        "reinstall": "npm run nuke && npm install",
+        "release": "npm run clean && npm run build",
+        "test": "mocha test",
+        "watch": "tsc --build --verbose --watch tsconfig.all.json"
+    },
+    "peerDependencies": {
+        "@solana/web3.js": "^1.95.5"
+    },
+    "dependencies": {
+        "@solana/codecs": "2.0.0"
+    },
+    "devDependencies": {
+        "@solana/spl-type-length-value": "0.2.0",
+        "@solana/web3.js": "^1.95.5",
+        "@types/chai": "^5.0.1",
+        "@types/mocha": "^10.0.10",
+        "@types/node": "^22.10.2",
+        "@typescript-eslint/eslint-plugin": "^8.4.0",
+        "@typescript-eslint/parser": "^8.4.0",
+        "chai": "^5.1.2",
+        "eslint": "^8.57.0",
+        "eslint-plugin-require-extensions": "^0.1.1",
+        "gh-pages": "^6.2.0",
+        "mocha": "^11.0.1",
+        "shx": "^0.3.4",
+        "ts-node": "^10.9.2",
+        "tslib": "^2.8.1",
+        "typedoc": "^0.27.4",
+        "typescript": "^5.7.2"
+    }
+}