How to make WebClient call streaming APIs and perform streaming processing

[OnceCrazyer]

when i use WebClient to call streaming APIs,but it dosnt work. but when i call the api by curl or Web Browser，it is ok:
http api:

webClient: when i call the api by curl or Web Browser，it is ok:

[bclozel]

Thanks for getting in touch, but it feels like this is a question that would be better suited to Stack Overflow. As mentioned in the guidelines for contributing, we prefer to use the issue tracker only for bugs and enhancements. Feel free to update this issue with a link to the re-posted question (so that other people can find it) or add some more details if you feel this is a genuine bug.