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hypf

v0.2.3

Published

Small and strong-typed HTTP client for Deno, Bun, Node.js, Cloudflare Workers and Browsers.

Downloads

51

Readme

GitHub Workflow Status GitHub npm npm JSR Bundle Size Bundle Size GitHub commit activity GitHub last commit

Small (6.3kB minified & 0 dependencies) and type-powered HTTP client for Deno, Bun, Node.js, Cloudflare Workers and Browsers. 🚀

The most flexible fetch wrapper that allows you to have more than one practice to get things done!

Table of Contents

Get Started

# Node.js
npm install hypf
# Bun
bun install hypf

The idea of this tool is to provide lightweight fetch wrapper for Node.js, Bun:

import hypf from 'hypf'

const hypfRequest = hypf.init('https://jsonplaceholder.typicode.com')

// Example usage of POST method with retry and timeout
const [postErr, postData] = await hypfRequest.post(
  '/posts',
  { retries: 3, timeout: 5000 },
  {
    title: 'foo',
    body: 'bar',
    userId: 1,
  }
)

if (postErr) {
  console.error('POST Error:', postErr)
} else {
  console.log('POST Data:', postData)
}

Cloudflare Workers:

export default {
  async fetch(request: Request, env: Env, ctx: ExecutionContext): Promise<Response> {
    const hypfInstance = await hypf.init('https://jsonplaceholder.typicode.com')

    const [getErr, getData] = await hypfInstance.get<
      Array<{
        userId: number
        id: number
        title: string
        body: string
      }>
    >('/posts')

    if (getErr) {
      console.error('GET Error:', getErr)
    }

    return Response.json(getData)
  },
}

and Browsers:

<script src="https://unpkg.com/hypf/browser/hyperfetch-browser.min.js"></script>

<script>
  ;(async () => {
    const request = hypf.default.init('https://jsonplaceholder.typicode.com')
  })()
</script>

Error Handling

You can handle errors like Error handling on Golang

const hypfRequest = hypf.init('https://jsonplaceholder.typicode.com')

// Example usage of POST method with retry and timeout
const [postErr, postData] = await hypfRequest.post(
  '/posts',
  { retries: 3, timeout: 5000 },
  {
    title: 'foo',
    body: 'bar',
    userId: 1,
  }
)

if (postErr) {
  console.error('POST Error:', postErr)
} else {
  console.log('POST Data:', postData)
}

or since v0.2.2 throw on error with throwOnError options sets true

const hypfRequest = hypf.init('https://jsonplaceholder.typicode.com')

try {
  const response = await hypfRequest.post(
    '/posts',
    { retries: 3, timeout: 5000, initOptions: { throwOnError: true } },
    {
      title: 'foo',
      body: 'bar',
      userId: 1,
    }
  )

  console.log(response)
} catch (err) {
  console.log(err)
}

Response Cloning

You need to use throwOnError: true to enable Response clone feature.

const res = await createRequest(
  'https://jsonplaceholder.typicode.com/todos/1',
  {},
  {},
  {
    throwOnError: true,
  }
)

const response2 = res.clone()

expect(res).to.be.an.instanceOf(Response)
expect(response2).to.be.an.instanceOf(Response)
expect(await res.json()).to.be.an.instanceOf(Object)
expect(await response2.json()).to.be.an.instanceOf(Object)

Request Cloning

You need to use throwOnError: true and dryRun: true to enable Request clone feature.

const req = await createRequest(
  'https://jsonplaceholder.typicode.com/todos/1',
  {
    dryRun: true,
  },
  {},
  {
    throwOnError: true,
  }
)

const req2 = req.clone()

expect(req).to.be.an.instanceOf(Request)
expect(req2).to.be.an.instanceOf(Request)

Hooks

Hooks is supported and expected to not modifying the original result by design.

const hooks = {
  preRequest: (url, options) => {
    console.log(`Preparing to send request to: ${url}`)
    // You can perform actions before the request here
  },
  postRequest: (url, options, data, response) => {
    console.log(`Request to ${url} completed with status: ${response?.[0] ? 'error' : 'success'}`)
    // You can perform actions after the request here, including handling errors
  },
}

const requestWithHooks = hypf.init('https://jsonplaceholder.typicode.com', { hooks })

// Example usage of POST method with retry and timeout
const [postErr, postData] = await requestWithHooks.post(
  '/posts',
  { retries: 3, timeout: 5000 },
  {
    title: 'foo',
    body: 'bar',
    userId: 1,
  }
)

List of Hooks:

export interface Hooks {
  preRequest?: (url: string, options: RequestOptions) => void
  postRequest?: <T, U>(
    url: string,
    options: RequestOptions,
    data?: T,
    response?: [Error | null, U]
  ) => void
  preRetry?: (url: string, options: RequestOptions, retryCount: number, retryLeft: number) => void
  postRetry?: <T, U>(
    url: string,
    options: RequestOptions,
    data?: T,
    response?: [Error | null, U],
    retryCount?: number,
    retryLeft?: number
  ) => void
  preTimeout?: (url: string, options: RequestOptions) => void
  postTimeout?: (url: string, options: RequestOptions) => void
}

Retry Mechanism

You can retry your request once it's failed!

const [postErr, postData] = await requestWithHooks.post(
  '/posts',
  { retries: 3, timeout: 5000 },
  {
    title: 'foo',
    body: 'bar',
    userId: 1,
  }
)

Jitter and backoff also supported. 😎

const [postErr, postData] = await requestWithHooks.post(
  '/posts',
  { retries: 3, timeout: 5000, jitter: true }, // false `jitter` to use backoff
  {
    title: 'foo',
    body: 'bar',
    userId: 1,
  }
)

You can modify backoff and jitter factor as well.

const [postErr, postData] = await requestWithHooks.post(
  '/posts',
  { retries: 3, timeout: 5000, jitter: true, jitterFactor: 10000 }, // false `jitter` to use backoff
  {
    title: 'foo',
    body: 'bar',
    userId: 1,
  }
)

// or backoff

const [postErr, postData] = await requestWithHooks.post(
  '/posts',
  { retries: 3, timeout: 5000, jitter: false, backoffFactor: 10000 }, // false `jitter` to use backoff
  {
    title: 'foo',
    body: 'bar',
    userId: 1,
  }
)

Retry on timeout also supported.

const [postErr, postData] = await requestWithHooks.post(
  '/posts',
  { retries: 3, timeout: 5000, retryOnTimeout: true },
  {
    title: 'foo',
    body: 'bar',
    userId: 1,
  }
)

Infer Response Types

const [getErr, getData] = await hypfRequest.get<
  Array<{
    userId: number
    id: number
    title: string
    body: string
  }>
>('/posts', {
  retries: 3,
  timeout: 5000,
})

getData?.[0]?.id // number | undefined

URLSearchParams

const [getErr, getData] = await hypfRequest.get('/posts', {
  retries: 3,
  timeout: 5000,
  params: {
    id: 1,
  },
}) // /posts?id=1

Form Data

Example usecase for Upload File:

export async function postImportFile(formData: FormData) {
  const [postErr, postData] = await hypfRequest.post(`/api/upload-file/import`, {
    body: formData,
  })

  if (postErr) {
    throw postErr
  }

  return postData
}

AbortController

We expose abort controller, you can cancel next request anytime.

// DELETE will not work if you uncomment this
const controller = requestWithHooks.getAbortController()

controller.abort()

// Example usage of DELETE method with retry and timeout
const [deleteErr, deleteData] = await requestWithHooks.delete('/posts/1', {
  retries: 3,
  timeout: 5000,
})

if (deleteErr) {
  console.error('DELETE Error:', deleteErr)
} else {
  console.log('DELETE Data:', deleteData)
}

debug

Debugging the library is possible but limited. You can pass true to debug option:

const requestWithHooks = hypf.init('https://jsonplaceholder.typicode.com', { debug: true })

This is designed to be useful to track an issue. Submit a PR to debug more areas in the code!

Acknowledgements

Hyperfetch is highly inspired by Hono, Got, Ky and Axios

License

Hyperfetch is MIT-licensed and Open Source Software by fzn0x and contributors from Hono and the Hyperfetch community: