> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.scrapingbee.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# How to use concurrency?

According to the plan you chose, you will have access to a specific number of concurrent request. This means that you'll be able to only do a specific number of request at the same time.

For example, if you need to make 100 requests and have an allowed concurrency of 5, it means that you can send 5 requests at the same time. The simplest way for you to take advantage of this concurrency is to set up 5 workers / threads and having each of them send 20 requests.

Below you'll find some resources that can help you doing that.

## Python

```
import concurrent.futures
import time
from scrapingbee import ScrapingBeeClient # Importing SPB's client
client = ScrapingBeeClient(api_key='APIKEY') # Initialize the client with your API Key, and using screenshot_full_page parameter to take a screenshot!

MAX_RETRIES = 5 # Setting the maximum number of retries if we have failed requests to 5.
MAX_THREADS = 4
urls = ["http://scrapingbee.com/blog", "http://reddit.com/"]

def scrape(url):
    for _ in range(MAX_RETRIES):
        response = client.get(url, params={'screenshot': True}) # Scrape!

        if response.ok: # If we get a successful request
            with open("./"+str(time.time())+"screenshot.png", "wb") as f:
                f.write(response.content) # Save the screenshot in the file "screenshot.png"
                break # Then get out of the retry loop
        else: # If we get a failed request, then we continue the loop
            print(response.content)

with concurrent.futures.ThreadPoolExecutor(max_workers=MAX_THREADS) as executor:
    executor.map(scrape, urls)
```

This specific code example safes the response as a screenshot. You can remove that feature if you wish to safe a text response, or any other type of response. 
Also, this is for Python, but you can most of other popular language examples [here](https://www.scrapingbee.com/tutorials/#General). They would be available under the specified language.
![](https://storage.crisp.chat/users/helpdesk/website/-/6/6/a/2/66a2759f2b092c00/image_1exf2nt.png)