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Install MongoDBGo driver and use mongo.Connect() to establish a connection to ensure the connection is successful through Ping; 2. Define a Go structure with bson tag to map MongoDB documents, optionally use primitive.ObjectID as the ID type; 3. Use InsertOne to insert a single document, FindOne query a single document and handle mongo.ErrNoDocuments errors, UpdateOne updates the document, DeleteOne deletes the document, Find cooperates with cursor.All to get multiple documents; 4. Always use a context with timeout to avoid request hangs, and reuse Mon

Specific rules are required to write Go benchmarks: 1. The benchmark function must be located in the _test.go file, start with Benchmark, receive *testing.B parameters, and package them with the code under test; 2. Use getest-bench=. to run all benchmarks, and the output includes the number of iterations and time-consuming each operation; 3. You can control the test duration and times through the flags such as -benchtime, -count, and -benchmem and check the memory allocation situation; 4. Best practices include placing the initialization code outside the loop, using b.ResetTimer() to exclude preparation time, using b.Run() to perform sub-bench tests to compare different scenarios, and avoiding I/O or external

Gohandlesconcurrencythroughgoroutinesandchannels,makingitsimpleandefficienttowriteconcurrentprograms.1.GoroutinesarelightweightthreadsmanagedbytheGoruntime,startedwiththegokeyword,andcanscaletothousandsormillionsduetosmallinitialstacksize,efficientsc

Go,officiallycalledGoandoftenreferredtoasGolang,isanopen-sourceprogramminglanguagedevelopedatGooglebyRobertGriesemer,RobPike,andKenThompson,officiallyreleasedin2009tocombinetheefficiencyofcompiledlanguageswiththeeaseofdynamicones.1.Itemphasizessimpli

UseURLpathversioninglike/api/v1forclear,routable,anddeveloper-friendlyversioning.2.Applysemanticversioningwithmajorversions(v1,v2)only,avoidingmicro-versionslikev1.1topreventroutingcomplexity.3.OptionallysupportcontentnegotiationviaAcceptheadersifalr

InGo,structembeddingenablescodereusebypromotingfieldsandmethodsfromanembeddedstructtotheouterstruct.2.Whenastructisembeddedasananonymousfield,itsfieldsandmethodscanbeaccesseddirectly,suchasemp.Nameoremp.Greet().3.Methodsfromtheembeddedstructarepromot

The correct way to use Golang to serve static files is to cooperate with http.StripPrefix through http.FileServer; 1. Use http.FileServer to provide file services from a specified directory (such as static/) and route requests through http.Handle("/static/",http.StripPrefix("/static/",fs)); 2. Do not expose sensitive files, prohibit the use of root path such as http.Dir("/"), which should be limited to a dedicated static directory; 3. For single-page applications (SPA), you must