Brian Clozel 1f7063c9b4 Add Server-Sent Events transport ...

Prior to this commit, the WebFlux and WebMVC infrastructure would only
support subscriptions over the WebSocket and RSocket transports.

This commit adds the `GraphQlSseHandler` implementations for both web
frameworks. This handler will send GraphQL responses as as stream of
Server-Sent Events, over an HTTP response with the "text/event-stream"
content type.

This implementation only supports the "Distinct connections mode" and
will reject all operations other than Subscriptions.

This commit also enhances the `HttpGraphQlTransport` client transport to
support subscriptions over this new protocol.

Closes gh-309

2024-02-15 21:09:27 +01:00

1.7 KiB

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