producer: Integrate context.Context with publishing #365
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This PR sets out to resolve #360 with the integration of context.Context in the
nsq.Producer. In order to maintain backwards compatibility, new methods were added that have names with the suffixWithContext. These new methods mostly correspond to those that a client would use to publish messages and they adhere to context timeouts/deadlines. Once the deadline has been reached, an error will be returned to the client and the givenProducerTransactionwill be dropped/not published, all while keeping the connection tonsqdalive.An overview of the new methods added are below:
nsq.Conn
nsq.Producer
The idea here being that these
WithContextmethods would essentially replace the existing ones eventually, which would be a breaking/major version change forgo-nsq.