Setting Custom Headers

import httpx

headers = {
    'User-Agent': 'CustomAgent/1.0 (Platform; SystemInfo)'
}
response = httpx.get('https://httpbin.org/get', headers=headers)

print(response.text)

Enabling HTTP/2 Protocol

By default, httpx uses HTTP/1.1. To enable HTTP/2:

import httpx
client = httpx.Client(http2=True)

response = client.get('https://example.org/')
print(response.text)

Cleint Object Usage

The Client object in httpx is similar to Session in requests:

import httpx

with httpx.Client() as client:
    response = client.get('https://httpbin.org/get')
    print(response)

Alternative syntax:

client = httpx.Client()
try:
    response = client.get('https://httpbin.org/get')
finally:
    client.close()

Configuring Client Parameters

url = 'http://httpbin.org/headers'
headers = {'User-Agent': 'CustomApp/1.0'}

with httpx.Client(headers=headers) as client:
    r = client.get(url)
    print(r.json()['headers']['User-Agent'])

HTTP/2 with Client

import httpx
client = httpx.Client(http2=True)

response = client.get('https://httpbin.org/get')
print(response.text)
print(response.http_version)

AsyncClient for Asynchronous Requests

httpx also supports asynchronous requests through AsyncClient.