feat: add basic functionality

Author: graycraft

.gitignore

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+node_modules
+response/**/snapshot

.npmrc

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+engine-strict=true

.nvmrc

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+v22

LICENSE

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+# API Tools
+
+Use appropriate Node.js version:
+```bash
+nvm use
+```
+
+General syntax of commands:
+```bash
+node <api> <handler>[ <params>][ <key=value>][ <flag>]
+```
+
+Full list of commands, params and options depends on implementation.
+
+## Request
+
+To run a scenario related to request processing of an API, change directory:
+```bash
+cd request
+```
+
+Example of commands for Bybit API:
+```bash
+node bybit.mjs
+node bybit.mjs orderAll
+node bybit.mjs order 1234567890123456789
+node bybit.mjs order 1234567890123456789 symbol=BTC
+node bybit.mjs order 1234567890123456789 symbol=BTC --snapshot
+```
+
+
+## Response
+
+To run a scenario related to response processing of an API, change directory:
+```bash
+cd response
+```
+
+Example of commands for Bybit API:
+```bash
+node bybit.mjs
+node bybit.mjs orderAll
+node bybit.mjs order 1234567890123456789
+node bybit.mjs order 1234567890123456789 symbol=BTC
+node bybit.mjs order 1234567890123456789 symbol=BTC --snapshot
+```

README.md

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+/**
+ * Sign GET request with JSON Web Token for Coinbase Advanced API and send.
+ *
+ * @see https://nodejs.org/api/crypto.html#cryptocreatehmacalgorithm-key-options
+ * @see https://nodejs.org/api/crypto.html#hmacdigestencoding
+ * @see https://nodejs.org/api/crypto.html#hmacupdatedata-inputencoding
+ * @module coinbase/jwt_get
+ */
+
+import crypto from "node:crypto";
+import jsonwebtoken from "jsonwebtoken";
+
+const data = {
+    order_status: "OPEN",
+    product_id: "SOL-USDT"
+  },
+  hostname = "api.coinbase.com",
+  key = "********",
+  method = "GET",
+  path = "/api/v3/brokerage/orders/historical/batch",
+  query = "?" + String(new URLSearchParams(data)),
+  secret = "********",
+  timestamp = Date.now(),
+  url = "https://" + hostname + path + query,
+  nonce = crypto.randomBytes(16).toString("hex"),
+  payload = {
+    exp: Math.floor(timestamp / 1_000) + 120,
+    iss: "cdp",
+    nbf: Math.floor(timestamp / 1_000),
+    sub: key,
+    uri: method + " " + hostname + path,
+  },
+  token = jsonwebtoken.sign(
+    payload,
+    secret,
+    {
+      algorithm: "ES256",
+      header: {
+        kid: key,
+        nonce,
+      },
+    }
+  );
+
+console.log("Fetching\u2026");
+fetch(url, {
+  headers: {
+    Authorization: "Bearer " + token,
+  },
+  method,
+})
+  .then((response) => response.text())
+  .then((text) =>
+    {
+      console.log("request:", {
+        data,
+        hostname,
+        key,
+        method,
+        nonce,
+        path,
+        payload,
+        query,
+        secret,
+        timestamp,
+        token,
+        url
+      });
+      console.dir(JSON.parse(text), { depth: null })
+    }
+  );

coinbase/jwt_get.mjs

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+/**
+ * Sign POST request with JSON Web Token for Coinbase Advanced API and send.
+ *
+ * @see https://docs.cdp.coinbase.com/advanced-trade/docs/rest-api-auth
+ * @see https://docs.cdp.coinbase.com/advanced-trade/reference/retailbrokerageapi_postorder
+ * @module coinbase/fetch_post
+ */
+
+import crypto from "node:crypto";
+import jsonwebtoken from "jsonwebtoken";
+
+const data = {
+    client_order_id: crypto.randomUUID(),
+    order_configuration: {
+      limit_limit_gtc: {
+        base_size: "0.01",
+        limit_price: "1000"
+      }
+    },
+    product_id: "BTC-USDT",
+    retail_portfolio_id: "00000000-0000-000000000-000000000000",
+    side: "BUY"
+  },
+  body = JSON.stringify(data),
+  hostname = "api.coinbase.com",
+  key = "********",
+  method = "POST",
+  path = "/api/v3/brokerage/orders",
+  secret = "********",
+  timestamp = Date.now(),
+  nonce = crypto.randomBytes(16).toString("hex"),
+  payload = {
+    exp: Math.floor(timestamp / 1_000) + 120,
+    iss: "cdp",
+    nbf: Math.floor(timestamp / 1_000),
+    sub: key,
+    uri: method + " " + hostname + path,
+  },
+  token = jsonwebtoken.sign(
+    payload,
+    secret,
+    {
+      algorithm: "ES256",
+      header: {
+        kid: key,
+        nonce,
+      },
+    }
+  );
+
+fetch("https://" + hostname + path, {
+  body,
+  headers: {
+    Authorization: "Bearer " + token,
+    "Content-Type": "application/json",
+  },
+  method,
+})
+  .then((response) => response.text())
+  .then((text) =>
+    {
+      console.log("request:", {
+        body,
+        data,
+        hostname,
+        key,
+        method,
+        nonce,
+        path,
+        payload,
+        secret,
+        timestamp,
+        token,
+      });
+      console.dir(JSON.parse(text), { depth: null })
+    }
+  );

coinbase/jwt_post.mjs

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+"use strict";
+
+const axios = require('axios');
+
+let config = {
+  method: 'get',
+  maxBodyLength: Infinity,
+  url: 'https://api.coinbase.com/api/v3/brokerage/products',
+  headers: { 
+    'Content-Type': 'application/json'
+  }
+};
+
+axios.request(config)
+.then((response) => {
+  console.log(JSON.stringify(response.data));
+})
+.catch((error) => {
+  console.log(error);
+});