26 lines
1.2 KiB
Go
26 lines
1.2 KiB
Go
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// Package eventsource implements a client and server to allow streaming data one-way over a HTTP connection
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// using the Server-Sent Events API http://dev.w3.org/html5/eventsource/
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//
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// The client and server respect the Last-Event-ID header.
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// If the Repository interface is implemented on the server, events can be replayed in case of a network disconnection.
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package eventsource
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// Any event received by the client or sent by the server will implement this interface
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type Event interface {
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// Id is an identifier that can be used to allow a client to replay
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// missed Events by returning the Last-Event-Id header.
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// Return empty string if not required.
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Id() string
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// The name of the event. Return empty string if not required.
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Event() string
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// The payload of the event.
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Data() string
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}
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// If history is required, this interface will allow clients to reply previous events through the server.
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// Both methods can be called from different goroutines concurrently, so you must make sure they are go-routine safe.
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type Repository interface {
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// Gets the Events which should follow on from the specified channel and event id.
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Replay(channel, id string) chan Event
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}
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