wu-sheng commented on pull request #50:
URL: https://github.com/apache/skywalking-nodejs/pull/50#issuecomment-839764854


   > > > "peer" removed from Context.newExitSpan() and is now treated just like 
the other parameters.
   > > 
   > > 
   > > If there is no `peer`, the `sw8` header could not be assembled 
correctly. How do the test cases work?
   > 
   > There is a peer it is just being set explicitly after the call rather than 
passing as parameter to `newExitSpan()` and being set in this function. A minor 
change to allow consolidating common functionality of newExitSpan, newEntrySpan 
and newLocalSpan.
   
   This was designed from day one, because you want to make sure you have this, 
rather than facing `no-peer` in creating headers. Do we expect to have an 
`error` if it is really missed?


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