API Calls Block Forever After Many Requests about btcrpcclient HOT 4 CLOSED

I've simplified the example program to only make a single API call per iteration in a single goroutine. The 1,000,000th API call reliably fails with every API method I've tried so far.

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The problem stems from btcd returning RPC identifiers that are ≥1,000,000 in scientific notation, e.g. 1000604 becomes 1.000604e+06. In my interpretation of the JSON-RPC specification that should be fine as the two values are strictly equal in JavaScript, so it's up to btcrpcclient to handle it properly.

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Nice find and thanks for hunting it down! Let me take a look at this real quick. I think the right way to fix this is probably to make sure btcd doesn't return scientific notation for the ID.

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Also, for reference, it's easy to see the warning if you enable logging in the client.

    backendLogger := btclog.NewDefaultBackendLogger()
    rpccLogger := btclog.NewSubsystemLogger(backendLogger, "RPCC: ")
    btcrpcclient.UseLogger(rpccLogger)

22:37:43 2016-08-07 [WRN] RPCC: Remote server sent invalid message: json: cannot unmarshal number 1e+06 into Go value of type uint64

from btcrpcclient.