Did you found a solution? I faced with the same issue. The documentation says to use Basic Auth (login and password in the header), but the result is “Basic auth no longer supported.”. I’ve tried too use the OAuth, but it seems like it is not the thing I want - OAuth requests the access to the user’s data, and I want just grab the tweets by the keywords, it does not require the user authentification at all. Moreover, there’s no example how to get the tweets using the OAuth, just Basic authentification