SDK Examples

TypeScript

const res = await fetch("https://fastcrw.com/api/v1/scrape", {
  method: "POST",
  headers: {
    Authorization: "Bearer YOUR_API_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({ url: "https://example.com", formats: ["markdown"] }),
});

if (!res.ok) {
  throw new Error(`fastCRW error: ${res.status}`);
}

const payload = await res.json();
console.log(payload.data?.markdown);

This is enough for most Node.js backends, server actions, and edge handlers.

Python

import requests

res = requests.post(
    "https://fastcrw.com/api/v1/scrape",
    headers={
        "Authorization": "Bearer YOUR_API_KEY",
        "Content-Type": "application/json",
    },
    json={"url": "https://example.com", "formats": ["markdown"]},
)

res.raise_for_status()
payload = res.json()
print(payload["data"]["markdown"])

Go

package main

import (
  "bytes"
  "fmt"
  "io"
  "net/http"
)

func main() {
  body := []byte(`{"url":"https://example.com","formats":["markdown"]}`)
  req, _ := http.NewRequest("POST", "https://fastcrw.com/api/v1/scrape", bytes.NewBuffer(body))
  req.Header.Set("Authorization", "Bearer YOUR_API_KEY")
  req.Header.Set("Content-Type", "application/json")

  res, err := http.DefaultClient.Do(req)
  if err != nil {
    panic(err)
  }
  defer res.Body.Close()

  b, _ := io.ReadAll(res.Body)
  fmt.Println(string(b))
}

Crawl Polling Pattern

Every language follows the same basic loop:

1. POST /crawl to start the job.
2. Read the returned crawl id.
3. GET /crawl/:id until the job reaches a terminal state.

That is why the examples here stay close to raw HTTP instead of pretending there is an official SDK package.

Production Advice

• Load the API key from an environment variable.
• Respect Retry-After on 429.
• Log warning and metadata.statusCode, not just the HTTP status.
• Start with scrape before wiring in crawl or extraction.