Clients

This page records the tools used to send requests from frontend applications.

Native Browser Clients

• Fetch API
• XMLHttpRequest

XMLHttpRequest is mostly historical in new projects, but it still matters when reading old code, understanding older libraries, or handling browser upload progress patterns.

Fetch-Based Wrappers

• ofetch
• ky
• VueUse useFetch

Axios

• axios instance
• interceptors
• request and response transform
• upload and download progress
• timeout and cancellation

The Axios request-layer notes are built around a runnable, fully tested implementation kept in this repo at docs/projects/axios-http:

• Overview - scope, protocol stance, capability defaults, and the pre-adoption checklist.
• Learning path - reading guide: the global request map, the eight-stage overview, and the three adoption tiers.
• Stage pages, each ending with the source files it lands: 最小客户端, 逻辑请求与错误, 生命周期能力, 认证与刷新, 业务模块与端到端.

Framework Clients

• Nuxt $fetch
• Nuxt useFetch
• Vue integration notes
• React integration notes

Server-State Tools

This topic owns the tool-agnostic role of server-state libraries: cache identity, staleness, invalidation, deduplication, and when a request library is not enough. Framework-specific APIs belong in their framework topics.

• TanStack Query
• SWR-like tools
• request library vs server-state library

Related:

• Fundamentals
• Axios
• Design guidelines
• frontend_vue
• frontend_react