: Fixing race conditions and understanding the difference between concurrency and parallelism.
Not validating user input — trusting callers. Fix: validate and sanitize all untrusted inputs. 100 Go Mistakes And How To Avoid Them Pdf Download
While the is convenient, the modern Gopher also has interactive alternatives: : Fixing race conditions and understanding the difference
Parsing JSON into interface{} and type-asserting repeatedly. Fix: define structs and unmarshal into them. close only from one side.
Sending on closed channel (panic). Fix: design sender/closer ownership; close only from one side.