Using the requests module

Another option to establish client-server communication among microservices is the requests module. Although httpx and requests are almost compatible, the latter offers other features such as auto-redirection and explicit session handling. The only problem with requests is its non-direct support to asynchronous APIs and its slow performance when accessing resources. Despite its drawbacks, the requests module is still the standard way of consuming REST APIs in Python microservice development. First, we need to install it before we can use it:

pip install requests

In our ERP prototype, the requests extension was used by the faculty microservice to borrow books from the library module. Let’s look at the Faculty client services that show us how the requests module is used to access the synchronous API of library:

@router.get('/books/request/list')
def list_all_request(): 
    with requests.Session() as sess:
 ...