@helia/verified-fetch/src/utils/server-timing.ts

A fetch-like API for obtaining verified & trustless IPFS content on the web

export class ServerTiming {
  private headers: string[]

  constructor () {
    this.headers = []
  }

  getHeader (): string {
    return this.headers.join(',')
  }

  async time <T> (name: string, description: string, promise: Promise<T>): Promise<T> {
    const startTime = performance.now()

    try {
      return await promise // Execute the function
    } finally {
      const endTime = performance.now()
      const duration = (endTime - startTime).toFixed(1) // Duration in milliseconds

      this.headers.push(`${name};dur=${duration};desc="${description}"`)
    }
  }
}