[BUG] The proxy setup does not work with Urllib3HttpConnection

[int0x03]

What is the bug?

the proxy setup in this wiki does not work https://github.com/opensearch-project/opensearch-py/blob/main/guides/proxy.md

How can one reproduce the bug?

use the code in wiki

What is the expected behavior?

follow the wiki, the proxy should work

What is your host/environment?

MAC

Do you have any screenshots?

no

Do you have any additional context?

no

[florian-lang-a1]

If you are using the code for the Sync Client there is actually a line missing there.
It should be

from opensearchpy import OpenSearch, RequestsHttpConnection

OpenSearch(
    hosts=["https://..."],
    use_ssl=True,
    verify_certs=True,
    connection_class=RequestsHttpConnection,
    trust_env=True,
)

[dblock]

@int0x03 @florian-lang-a1 care to help fix the doc please?

[int0x03]

thanks @florian-lang-a1 @dblock .
with @florian-lang-a1 suggestion, it means we must setup the proxy in environment variables right? if yes, it means the proxy is used by all the client connection code. that's the not correct way.

it is better to have a proxies parameter, like the python requests:

import requests

proxies = {
    'http': 'http://proxy.example.com:8080',
    'https': 'http://proxy.example.com:8080',
}

response = requests.get('http://example.com', proxies=proxies)
print(response.text)

[dblock]

it is better to have a proxies parameter, like the python requests:

Yes, you're correct.

[int0x03]

I will check how to add this parameter and send a PR in the weekend.

[dblock]

Looks like RequestsHttpConnection works for the proxy scenario but not Urllib3HttpConnection. This is the bug that needs to be fixed.