diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 000000000..63187fe16
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,15 @@
+# http://editorconfig.org
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 2
+indent_style = space
+insert_final_newline = true
+max_line_length = 80
+trim_trailing_whitespace = true
+
+[*.md]
+max_line_length = 0
+trim_trailing_whitespace = false
diff --git a/.eslintrc.json b/.eslintrc.json
new file mode 100644
index 000000000..e3f05aaa2
--- /dev/null
+++ b/.eslintrc.json
@@ -0,0 +1,34 @@
+{
+  "root": true,
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": { "project": "./tsconfig.json" },
+  "env": { "es6": true },
+  "ignorePatterns": ["node_modules", "build", "coverage"],
+  "plugins": ["import", "eslint-comments", "functional"],
+  "extends": [
+    "eslint:recommended",
+    "plugin:eslint-comments/recommended",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:import/typescript",
+    "plugin:functional/lite",
+    "prettier",
+    "prettier/@typescript-eslint"
+  ],
+  "globals": { "BigInt": true, "console": true, "WebAssembly": true },
+  "rules": {
+    "@typescript-eslint/explicit-module-boundary-types": "off",
+    "eslint-comments/disable-enable-pair": [
+      "error",
+      { "allowWholeFile": true }
+    ],
+    "eslint-comments/no-unused-disable": "error",
+    "import/order": [
+      "error",
+      { "newlines-between": "always", "alphabetize": { "order": "asc" } }
+    ],
+    "sort-imports": [
+      "error",
+      { "ignoreDeclarationSort": true, "ignoreCase": true }
+    ]
+  }
+}
diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
new file mode 100644
index 000000000..5ac541a7c
--- /dev/null
+++ b/.github/CONTRIBUTING.md
@@ -0,0 +1,3 @@
+# Example Contributing Guidelines
+
+This is an example of GitHub's contributing guidelines file. Check out GitHub's [CONTRIBUTING.md help center article](https://help.github.com/articles/setting-guidelines-for-repository-contributors/) for more information.
diff --git a/.github/ISSUE_TEMPLATE.md b/.github/ISSUE_TEMPLATE.md
new file mode 100644
index 000000000..5863654bd
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE.md
@@ -0,0 +1,9 @@
+- **I'm submitting a ...**
+  [ ] bug report
+  [ ] feature request
+  [ ] question about the decisions made in the repository
+  [ ] question about how to use this project
+
+- **Summary**
+
+- **Other information** (e.g. detailed explanation, stack traces, related issues, suggestions how to fix, links for us to have context, eg. StackOverflow, personal fork, etc.)
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
new file mode 100644
index 000000000..e04147782
--- /dev/null
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -0,0 +1,7 @@
+- **What kind of change does this PR introduce?** (Bug fix, feature, docs update, ...)
+
+- **What is the current behavior?** (You can also link to an open issue here)
+
+- **What is the new behavior (if this is a feature change)?**
+
+- **Other information**:
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 000000000..c9c3cfdef
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,9 @@
+.idea/*
+.nyc_output
+build
+node_modules
+test
+src/**.js
+coverage
+*.log
+yarn.lock
diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 000000000..0e80a3c86
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,2 @@
+# package.json is formatted by package managers, so we ignore it here
+package.json
\ No newline at end of file
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100644
index 000000000..439ccd5b5
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,8 @@
+{
+  "recommendations": [
+    "dbaeumer.vscode-eslint",
+    "esbenp.prettier-vscode",
+    "eamodio.gitlens",
+    "streetsidesoftware.code-spell-checker",
+  ]
+}
diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 000000000..171e54aae
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,29 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    // To debug, make sure a *.spec.ts file is active in the editor, then run a configuration
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Debug Active Spec",
+      "runtimeExecutable": "${workspaceFolder}/node_modules/.bin/ava",
+      "runtimeArgs": ["debug", "--break", "--serial", "${file}"],
+      "port": 9229,
+      "outputCapture": "std",
+      "skipFiles": ["<node_internals>/**/*.js"],
+      "preLaunchTask": "npm: build"
+      // "smartStep": true
+    },
+    {
+      // Use this one if you're already running `yarn watch`
+      "type": "node",
+      "request": "launch",
+      "name": "Debug Active Spec (no build)",
+      "runtimeExecutable": "${workspaceFolder}/node_modules/.bin/ava",
+      "runtimeArgs": ["debug", "--break", "--serial", "${file}"],
+      "port": 9229,
+      "outputCapture": "std",
+      "skipFiles": ["<node_internals>/**/*.js"]
+      // "smartStep": true
+    }]
+}
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 000000000..a379bd91d
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,5 @@
+{
+  "editor.formatOnSave": true,
+  "typescript.tsdk": "node_modules/typescript/lib",
+  "typescript.enablePromptUseWorkspaceTsdk": true
+}
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 000000000..c7e819bf6
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 Will Pote
+
+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
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+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
+SOFTWARE.
diff --git a/README.md b/README.md
new file mode 100644
index 000000000..70387cea6
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# uniswap-smart-order-router
+
+Uniswap Smart Order Router
diff --git a/package.json b/package.json
new file mode 100644
index 000000000..12503cfc3
--- /dev/null
+++ b/package.json
@@ -0,0 +1,105 @@
+{
+  "name": "uniswap-smart-order-router",
+  "version": "1.0.0",
+  "description": "Uniswap Smart Order Router",
+  "main": "build/main/index.js",
+  "typings": "build/main/index.d.ts",
+  "module": "build/module/index.js",
+  "repository": "https://github.com/willpote/uniswap-smart-order-router",
+  "license": "MIT",
+  "keywords": [],
+  "scripts": {
+    "build": "run-p build:*",
+    "build:main": "tsc -p tsconfig.json",
+    "build:module": "tsc -p tsconfig.module.json",
+    "fix": "run-s fix:*",
+    "fix:prettier": "prettier \"src/**/*.ts\" --write",
+    "fix:lint": "eslint src --ext .ts --fix",
+    "test": "run-s build test:*",
+    "test:lint": "eslint src --ext .ts",
+    "test:prettier": "prettier \"src/**/*.ts\" --list-different",
+    "test:unit": "nyc --silent ava",
+    "check-cli": "run-s test diff-integration-tests check-integration-tests",
+    "check-integration-tests": "run-s check-integration-test:*",
+    "diff-integration-tests": "mkdir -p diff && rm -rf diff/test && cp -r test diff/test && rm -rf diff/test/test-*/.git && cd diff && git init --quiet && git add -A && git commit --quiet --no-verify --allow-empty -m 'WIP' && echo '\\n\\nCommitted most recent integration test output in the \"diff\" directory. Review the changes with \"cd diff && git diff HEAD\" or your preferred git diff viewer.'",
+    "watch:build": "tsc -p tsconfig.json -w",
+    "watch:test": "nyc --silent ava --watch",
+    "cov": "run-s build test:unit cov:html cov:lcov && open-cli coverage/index.html",
+    "cov:html": "nyc report --reporter=html",
+    "cov:lcov": "nyc report --reporter=lcov",
+    "cov:send": "run-s cov:lcov && codecov",
+    "cov:check": "nyc report && nyc check-coverage --lines 100 --functions 100 --branches 100",
+    "doc": "run-s doc:html && open-cli build/docs/index.html",
+    "doc:html": "typedoc src/ --exclude **/*.spec.ts --target ES6 --mode file --out build/docs",
+    "doc:json": "typedoc src/ --exclude **/*.spec.ts --target ES6 --mode file --json build/docs/typedoc.json",
+    "doc:publish": "gh-pages -m \"[ci skip] Updates\" -d build/docs",
+    "version": "standard-version",
+    "reset-hard": "git clean -dfx && git reset --hard && npm i",
+    "prepare-release": "run-s reset-hard test cov:check doc:html version doc:publish"
+  },
+  "engines": {
+    "node": ">=10"
+  },
+  "dependencies": {
+    "@bitauth/libauth": "^1.17.1"
+  },
+  "devDependencies": {
+    "@ava/typescript": "^1.1.1",
+    "@istanbuljs/nyc-config-typescript": "^1.0.1",
+    "@typescript-eslint/eslint-plugin": "^4.0.1",
+    "@typescript-eslint/parser": "^4.0.1",
+    "ava": "^3.12.1",
+    "codecov": "^3.5.0",
+    "cspell": "^4.1.0",
+    "cz-conventional-changelog": "^3.3.0",
+    "eslint": "^7.8.0",
+    "eslint-config-prettier": "^6.11.0",
+    "eslint-plugin-eslint-comments": "^3.2.0",
+    "eslint-plugin-functional": "^3.0.2",
+    "eslint-plugin-import": "^2.22.0",
+    "gh-pages": "^3.1.0",
+    "npm-run-all": "^4.1.5",
+    "nyc": "^15.1.0",
+    "open-cli": "^6.0.1",
+    "prettier": "^2.1.1",
+    "standard-version": "^9.0.0",
+    "ts-node": "^9.0.0",
+    "typedoc": "^0.19.0",
+    "typescript": "^4.0.2"
+  },
+  "files": [
+    "build/main",
+    "build/module",
+    "!**/*.spec.*",
+    "!**/*.json",
+    "CHANGELOG.md",
+    "LICENSE",
+    "README.md"
+  ],
+  "ava": {
+    "failFast": true,
+    "timeout": "60s",
+    "typescript": {
+      "rewritePaths": {
+        "src/": "build/main/"
+      }
+    },
+    "files": [
+      "!build/module/**"
+    ]
+  },
+  "config": {
+    "commitizen": {
+      "path": "cz-conventional-changelog"
+    }
+  },
+  "prettier": {
+    "singleQuote": true
+  },
+  "nyc": {
+    "extends": "@istanbuljs/nyc-config-typescript",
+    "exclude": [
+      "**/*.spec.js"
+    ]
+  }
+}
diff --git a/src/index.ts b/src/index.ts
new file mode 100644
index 000000000..25b867cc9
--- /dev/null
+++ b/src/index.ts
@@ -0,0 +1,2 @@
+export * from './lib/async';
+export * from './lib/number';
diff --git a/src/lib/async.spec.ts b/src/lib/async.spec.ts
new file mode 100644
index 000000000..31bd17d5b
--- /dev/null
+++ b/src/lib/async.spec.ts
@@ -0,0 +1,7 @@
+import test from 'ava';
+
+import { asyncABC } from './async';
+
+test('getABC', async (t) => {
+  t.deepEqual(await asyncABC(), ['a', 'b', 'c']);
+});
diff --git a/src/lib/async.ts b/src/lib/async.ts
new file mode 100644
index 000000000..6a387275c
--- /dev/null
+++ b/src/lib/async.ts
@@ -0,0 +1,32 @@
+/**
+ * A sample async function (to demo Typescript's es7 async/await down-leveling).
+ *
+ * ### Example (es imports)
+ * ```js
+ * import { asyncABC } from 'typescript-starter'
+ * console.log(await asyncABC())
+ * // => ['a','b','c']
+ * ```
+ *
+ * ### Example (commonjs)
+ * ```js
+ * var double = require('typescript-starter').asyncABC;
+ * asyncABC().then(console.log);
+ * // => ['a','b','c']
+ * ```
+ *
+ * @returns a Promise which should contain `['a','b','c']`
+ */
+export const asyncABC = async () => {
+  const somethingSlow = (index: 0 | 1 | 2) => {
+    const storage = 'abc'.charAt(index);
+    return new Promise<string>((resolve) =>
+      // later...
+      resolve(storage)
+    );
+  };
+  const a = await somethingSlow(0);
+  const b = await somethingSlow(1);
+  const c = await somethingSlow(2);
+  return [a, b, c];
+};
diff --git a/src/lib/number.spec.ts b/src/lib/number.spec.ts
new file mode 100644
index 000000000..4b2e8dd5b
--- /dev/null
+++ b/src/lib/number.spec.ts
@@ -0,0 +1,11 @@
+import test from 'ava';
+
+import { double, power } from './number';
+
+test('double', (t) => {
+  t.is(double(2), 4);
+});
+
+test('power', (t) => {
+  t.is(power(2, 4), 16);
+});
diff --git a/src/lib/number.ts b/src/lib/number.ts
new file mode 100644
index 000000000..d28ddcc75
--- /dev/null
+++ b/src/lib/number.ts
@@ -0,0 +1,51 @@
+/**
+ * Multiplies a value by 2. (Also a full example of TypeDoc's functionality.)
+ *
+ * ### Example (es module)
+ * ```js
+ * import { double } from 'typescript-starter'
+ * console.log(double(4))
+ * // => 8
+ * ```
+ *
+ * ### Example (commonjs)
+ * ```js
+ * var double = require('typescript-starter').double;
+ * console.log(double(4))
+ * // => 8
+ * ```
+ *
+ * @param value - Comment describing the `value` parameter.
+ * @returns Comment describing the return type.
+ * @anotherNote Some other value.
+ */
+export const double = (value: number) => {
+  return value * 2;
+};
+
+/**
+ * Raise the value of the first parameter to the power of the second using the
+ * es7 exponentiation operator (`**`).
+ *
+ * ### Example (es module)
+ * ```js
+ * import { power } from 'typescript-starter'
+ * console.log(power(2,3))
+ * // => 8
+ * ```
+ *
+ * ### Example (commonjs)
+ * ```js
+ * var power = require('typescript-starter').power;
+ * console.log(power(2,3))
+ * // => 8
+ * ```
+ * @param base - the base to exponentiate
+ * @param exponent - the power to which to raise the base
+ */
+export const power = (base: number, exponent: number) => {
+  /**
+   * This es7 exponentiation operator is transpiled by TypeScript
+   */
+  return base ** exponent;
+};
diff --git a/src/types/example.d.ts b/src/types/example.d.ts
new file mode 100644
index 000000000..67a843ab9
--- /dev/null
+++ b/src/types/example.d.ts
@@ -0,0 +1,24 @@
+/**
+ * If you import a dependency which does not include its own type definitions,
+ * TypeScript will try to find a definition for it by following the `typeRoots`
+ * compiler option in tsconfig.json. For this project, we've configured it to
+ * fall back to this folder if nothing is found in node_modules/@types.
+ *
+ * Often, you can install the DefinitelyTyped
+ * (https://github.com/DefinitelyTyped/DefinitelyTyped) type definition for the
+ * dependency in question. However, if no one has yet contributed definitions
+ * for the package, you may want to declare your own. (If you're using the
+ * `noImplicitAny` compiler options, you'll be required to declare it.)
+ *
+ * This is an example type definition which allows import from `module-name`,
+ * e.g.:
+ * ```ts
+ * import something from 'module-name';
+ * something();
+ * ```
+ */
+declare module 'module-name' {
+  // eslint-disable-next-line @typescript-eslint/no-explicit-any
+  const whatever: any;
+  export = whatever;
+}
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 000000000..b91523b90
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,47 @@
+{
+  "compilerOptions": {
+    "incremental": true,
+    "target": "es2017",
+    "outDir": "build/main",
+    "rootDir": "src",
+    "moduleResolution": "node",
+    "module": "commonjs",
+    "declaration": true,
+    "inlineSourceMap": true,
+    "esModuleInterop": true /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */,
+    "resolveJsonModule": true /* Include modules imported with .json extension. */,
+
+    "strict": true /* Enable all strict type-checking options. */,
+
+    /* Strict Type-Checking Options */
+    // "noImplicitAny": true /* Raise error on expressions and declarations with an implied 'any' type. */,
+    // "strictNullChecks": true /* Enable strict null checks. */,
+    // "strictFunctionTypes": true /* Enable strict checking of function types. */,
+    // "strictPropertyInitialization": true /* Enable strict checking of property initialization in classes. */,
+    // "noImplicitThis": true /* Raise error on 'this' expressions with an implied 'any' type. */,
+    // "alwaysStrict": true /* Parse in strict mode and emit "use strict" for each source file. */,
+
+    /* Additional Checks */
+    "noUnusedLocals": true /* Report errors on unused locals. */,
+    "noUnusedParameters": true /* Report errors on unused parameters. */,
+    "noImplicitReturns": true /* Report error when not all code paths in function return a value. */,
+    "noFallthroughCasesInSwitch": true /* Report errors for fallthrough cases in switch statement. */,
+
+    /* Debugging Options */
+    "traceResolution": false /* Report module resolution log messages. */,
+    "listEmittedFiles": false /* Print names of generated files part of the compilation. */,
+    "listFiles": false /* Print names of files part of the compilation. */,
+    "pretty": true /* Stylize errors and messages using color and context. */,
+
+    /* Experimental Options */
+    // "experimentalDecorators": true /* Enables experimental support for ES7 decorators. */,
+    // "emitDecoratorMetadata": true /* Enables experimental support for emitting type metadata for decorators. */,
+
+    "lib": ["es2017"],
+    "types": ["node"],
+    "typeRoots": ["node_modules/@types", "src/types"]
+  },
+  "include": ["src/**/*.ts"],
+  "exclude": ["node_modules/**"],
+  "compileOnSave": false
+}
diff --git a/tsconfig.module.json b/tsconfig.module.json
new file mode 100644
index 000000000..dfb74fa3a
--- /dev/null
+++ b/tsconfig.module.json
@@ -0,0 +1,11 @@
+{
+  "extends": "./tsconfig",
+  "compilerOptions": {
+    "target": "esnext",
+    "outDir": "build/module",
+    "module": "esnext"
+  },
+  "exclude": [
+    "node_modules/**"
+  ]
+}