A fast, modern, local-first API testing client
Built with Tauri 2 · Next.js 15 · Rust

🇨🇳 中文文档

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✨ Features

• Request Editor — Full HTTP method support (GET, POST, PUT, PATCH, DELETE, HEAD, OPTIONS) with Params, Headers, Body, Auth tabs
• Script Engine — Pre-request scripts and test assertions via the zapi.* API (Postman-compatible), with console.log capture
• Console Panel — DevTools-style bottom panel showing script logs and HTTP request/response logs in real time
• Environments — Create named environments, manage variables, override per-request; env vars take precedence over collection vars
• Collections & Runner — Organize requests into collections, run them sequentially (functional mode) or as a load test (performance mode)
• Performance Testing — Rust-powered concurrent HTTP load testing inspired by rs-wrk: configurable connections, duration, rate limiting, timeouts, per-request latency percentiles
• Live Stats — Real-time TPS, error rate, and latency display during load tests (via Tauri event system)
• Run Reports — Functional reports with per-request pass/fail and test assertion details; performance reports with p50/p90/p99/p99.9 latency distribution
• Rerun — Re-execute a report in one click preserving the exact request order
• Layouts — Toggle between vertical (stacked) and horizontal (side-by-side) request/response panels
• History — Full request history with one-click replay
• Dark / Light mode — System-aware theme toggle

🛠 Tech Stack

Layer	Technology
Desktop shell	Tauri 2 (Rust)
Frontend	Next.js 15 · React 19 · TypeScript
Styling	Tailwind CSS v4
UI primitives	Radix UI
State	Zustand + persist
HTTP client (perf)	reqwest (Rust, async)

🚀 Getting Started

Prerequisites

• Node.js ≥ 20
• pnpm
• Rust stable toolchain
• Platform Tauri dependencies — see Tauri Prerequisites

Development

git clone https://github.com/yourname/zapi
cd zapi
pnpm install
pnpm tauri dev

The app opens in a Tauri window. The Next.js dev server runs on http://localhost:3000.

Production Build

# macOS
pnpm tauri build

# macOS (Intel)
pnpm tauri build --target x86_64-apple-darwin

# Windows (cross-compile)
pnpm tauri build --runner cargo-xwin --target x86_64-pc-windows-msvc

Mobile (experimental)

# Android
pnpm tauri android init
pnpm tauri android build --apk

# iOS
pnpm tauri ios init
pnpm tauri ios build

📁 Project Structure

zapi/
├── src/                    # Next.js frontend
│   ├── app/                # App Router pages & layout
│   ├── components/         # React components
│   │   ├── RequestEditor.tsx
│   │   ├── ResponseViewer.tsx
│   │   ├── RunnerPanel.tsx
│   │   ├── RunnerReport.tsx
│   │   ├── ConsolePanel.tsx
│   │   └── ...
│   └── lib/                # State, types, utilities
│       ├── store.ts        # Zustand store
│       ├── types.ts        # Shared TypeScript types
│       ├── pm.ts           # zapi.* script engine
│       └── http-client.ts  # HTTP execution
├── src-tauri/              # Tauri / Rust backend
│   ├── src/lib.rs          # Rust performance test engine
│   └── tauri.conf.json
└── public/                 # Static assets & logos

🧪 Script API (zapi.*)

Pre-request scripts and tests use a Postman-compatible API exposed as zapi:

// Pre-Script: runs before the request
zapi.environment.set("token", "abc123");
zapi.request.headers.add({ key: "Authorization", value: "Bearer " + zapi.environment.get("token") });

// Tests: run after the response
zapi.test("Status is 200", () => {
  zapi.response.to.have.status(200);
});

zapi.test("Has user id", () => {
  const json = zapi.response.json();
  zapi.expect(json).to.have.property("id");
});

// Save response value back to environment
zapi.environment.set("userId", zapi.response.json().id);

Console output from scripts is captured and shown in the Console Panel (toolbar ⌨ button).

📄 License

MIT