init

.gitignore

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+# Based on https://raw.githubusercontent.com/github/gitignore/main/Node.gitignore
+
+# Logs
+
+logs
+_.log
+npm-debug.log_
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Caches
+
+.cache
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+
+report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json
+
+# Runtime data
+
+pids
+_.pid
+_.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+
+lib-cov
+
+# Coverage directory used by tools like istanbul
+
+coverage
+*.lcov
+
+# nyc test coverage
+
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+
+bower_components
+
+# node-waf configuration
+
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+
+build/Release
+
+# Dependency directories
+
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+
+web_modules/
+
+# TypeScript cache
+
+*.tsbuildinfo
+
+# Optional npm cache directory
+
+.npm
+
+# Optional eslint cache
+
+.eslintcache
+
+# Optional stylelint cache
+
+.stylelintcache
+
+# Microbundle cache
+
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+
+.node_repl_history
+
+# Output of 'npm pack'
+
+*.tgz
+
+# Yarn Integrity file
+
+.yarn-integrity
+
+# dotenv environment variable files
+
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# parcel-bundler cache (https://parceljs.org/)
+
+.parcel-cache
+
+# Next.js build output
+
+.next
+out
+
+# Nuxt.js build / generate output
+
+.nuxt
+dist
+
+# Gatsby files
+
+# Comment in the public line in if your project uses Gatsby and not Next.js
+
+# https://nextjs.org/blog/next-9-1#public-directory-support
+
+# public
+
+# vuepress build output
+
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+
+.temp
+
+# Docusaurus cache and generated files
+
+.docusaurus
+
+# Serverless directories
+
+.serverless/
+
+# FuseBox cache
+
+.fusebox/
+
+# DynamoDB Local files
+
+.dynamodb/
+
+# TernJS port file
+
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+
+.vscode-test
+
+# yarn v2
+
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+# IntelliJ based IDEs
+.idea
+
+# Finder (MacOS) folder config
+.DS_Store

README.md

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+# httplog
+
+To install dependencies:
+
+```bash
+bun install
+```
+
+To run:
+
+```bash
+bun run index.ts
+```
+
+This project was created using `bun init` in bun v1.1.13. [Bun](https://bun.sh) is a fast all-in-one JavaScript runtime.

index.ts

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+
+export type Event = Record<string, string | string[]>;
+
+export interface IHTTPLogger {
+  log(event: string, ...tags: string[]): void;
+}
+
+export type HTTPLoggerOptions = {
+    url: string;
+    bufferSize?: number;
+    throttle?: number;
+    fetch?: typeof fetch;
+    getMetadata?: () => Event;
+};
+
+class HTTPLog implements IHTTPLogger {
+  #url: string;
+  #buffer: Event[] = [];
+  #bufferSize: number = 3;
+  #throttle: number;
+  #timeout: string | number | undefined = void 0;
+  #getMetadata: () => Event;
+
+  #fetch: (
+    input: RequestInfo | URL,
+    init?: RequestInit | undefined,
+  ) => Promise<Response>;
+
+  constructor({
+    url = "",
+    bufferSize = 3,
+    throttle = 1000,
+    fetch = globalThis.fetch,
+    getMetadata = () => ({
+        title: globalThis.document?.title || "",
+        url: globalThis.location?.href || "",
+    }),
+  }: HTTPLoggerOptions) {
+    if (url === "") {
+      throw new Error("URL is required");
+    }
+    this.#url = url;
+    this.#bufferSize = bufferSize;
+    this.#throttle = throttle;
+    this.#fetch = (...args) => fetch(...args);
+    this.#getMetadata = getMetadata;
+    if (typeof window === "undefined") {
+        return;
+    }
+    addEventListener("unload", () => {
+      globalThis?.navigator?.sendBeacon?.(
+        this.#url,
+        JSON.stringify(this.#buffer),
+      );
+    });
+  }
+
+  async #post() {
+    const data = this.#buffer.slice();
+    if (data.length === 0) {
+      return;
+    }
+    this.#buffer = [];
+    const body = JSON.stringify(data);
+    try {
+      const res = await this.#fetch(this.#url, {
+        method: "POST",
+        body: body,
+        headers: {
+          "Content-Type": "application/json",
+        },
+        keepalive: true,
+        credentials: "include",
+      });
+      if (res.status >= 400 && res.status !== 422) {
+        this.#buffer.push(...data);
+      }
+      return res;
+    } catch (e) {
+      console.log("Error", e);
+      this.#buffer.push(...data);
+    }
+  }
+
+  async #timer() {
+    this.#timeout = setTimeout(() => {
+      this.#post();
+      this.#timer();
+    }, this.#throttle) as any;
+  }
+
+  async log(event: string, ...tags: string[]) {
+    this.#buffer.push({
+      event,
+      tags,
+      ...this.#getMetadata(),
+    });
+
+    if (this.#buffer.length >= this.#bufferSize) {
+      this.#post();
+    }
+
+    if (this.#timeout === void 0) {
+      this.#post();
+      this.#timer();
+    }
+  }
+}
+
+declare global {
+  var HTTPLogger: IHTTPLogger;
+}
+
+// @ts-ignore
+globalThis.HTTPLogger = HTTPLog;

package.json

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+{
+  "name": "httplog",
+  "module": "index.ts",
+  "type": "module",
+  "devDependencies": {
+    "@types/bun": "latest"
+  },
+  "peerDependencies": {
+    "typescript": "^5.0.0"
+  },
+  "scripts": {
+    "build": "tsc -b"
+  }
+}

tsconfig.json

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+{
+  "compilerOptions": {
+    // Enable latest features
+    "lib": ["ESNext", "DOM"],
+    "target": "ESNext",
+    "module": "ESNext",
+    "moduleDetection": "force",
+    "jsx": "react-jsx",
+    "allowJs": true,
+
+    // Bundler mode
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": false,
+    "verbatimModuleSyntax": true,
+    "noEmit": false,
+
+    // Best practices
+    "strict": true,
+    "skipLibCheck": true,
+    "noFallthroughCasesInSwitch": true,
+
+    // Some stricter flags (disabled by default)
+    "noUnusedLocals": false,
+    "noUnusedParameters": false,
+    "noPropertyAccessFromIndexSignature": false,
+    "outDir": "./dist",
+    "sourceMap": true,
+    "declaration": true,
+    "declarationMap": true,
+  },
+  "include": ["./*"]
+}