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GO QUESTIONS

How to run for x seconds in a http handler
How to run for x seconds in a http handler
this one helps. Cancellations and timeouts are often done with a context.Context.While this simple example could be done with a channel alone, using the context here makes it more flexible, and can take into account the client disconnecting as well.
TAG : go
Date : November 21 2020, 07:01 PM , By : Dennis Zheng
Test whether a function was called
Test whether a function was called
Does that help Given this struct and function: , you can mock implementation of the interface, like
TAG : go
Date : November 15 2020, 07:01 PM , By : nhan
How to nest structures in Go
How to nest structures in Go
help you fix your problem I may be misunderstanding, but are you asking for a nested slice of structs? To accomplish this, simply use []tube:
TAG : go
Date : November 06 2020, 07:00 PM , By : Maxim Matyushin
< operator in Go lang
< operator in Go lang
I wish did fix the issue. Because < is not the same as “equal to”. Try changing your operators to
TAG : go
Date : November 05 2020, 07:01 PM , By : Steve Nelms
Concurrency in Go
Concurrency in Go
seems to work fine How to I go about implementing the aggregation pattern in Go, I have to send a bunch of http request concurrently where each go routine will call the endpoint and send the response status on a channel. Now on the main calling funct
TAG : go
Date : October 28 2020, 08:00 PM , By : Rodion Ivanov
what is the meaning of go syntax struct {}{}
what is the meaning of go syntax struct {}{}
Hope that helps The first braces mean you have declared a struct with empty field. and the Second braces is meaning you are going to new one instance of your struct, which you have declared before.
TAG : go
Date : October 24 2020, 06:10 PM , By : cool2015
How to find dependency causing "Sirupsen/logrus" vs. "sirupsen/logrus" unexpected module path error?
How to find dependency causing "Sirupsen/logrus" vs. "sirupsen/logrus" unexpected module path error?
hop of those help? I am trying to convert https://github.com/appscode/voyager from glide to go mod. , How do I find out the source of this old Sirupsen module?
TAG : go
Date : October 24 2020, 06:10 PM , By : Kevin Wright
grpc-go over https: failed rpc error: code = Unavailable desc = transport is closing:
grpc-go over https: failed rpc error: code = Unavailable desc = transport is closing:
hope this fix your issue In your server code, you are not listening on port 443, so this is most likely the reason your example isn't working.If you want to keep using http and not https, then your code is working just fine.
TAG : go
Date : October 24 2020, 06:10 AM , By : Spamx Samir
Is it safe to remove dictionary keys while iterating over it?
Is it safe to remove dictionary keys while iterating over it?
I wish this help you As always, the spec is the definitive answer. Scroll down to "For statements with range clause", item 3 (emphasis mine):
TAG : go
Date : October 23 2020, 06:10 PM , By : Руслан Мирсакиев
Function TestMain didn't run
Function TestMain didn't run
fixed the issue. Will look into that further The TestMain function is local to a test package.
TAG : go
Date : October 23 2020, 06:10 AM , By : Aanandh Chandrasekar
Why doesn't "go get" install the package to GOPATH?
Why doesn't "go get" install the package to GOPATH?
hope this fix your issue Because you are using sudo, the environment variables are not the same as the ones you see as yourself (your user).You can, for example, use: sudo --preserve-env go get -u github.com/golang/dep/cmd/dep but likely you will hav
TAG : go
Date : October 22 2020, 06:10 PM , By : Marcos
What does "safely escaped with Go syntax" mean?
What does "safely escaped with Go syntax" mean?
this will help It means that the formatted output would be escaped properly that it can be copied and used in the go source codeExample formattings
TAG : go
Date : October 22 2020, 06:10 PM , By : Lucky Luke
Idiomatic way to represent one of/union in Go
Idiomatic way to represent one of/union in Go
To fix this issue You're looking for algebraic data types. The idea is to define an interface your "different types" implement, and store that interface where they are expected.
TAG : go
Date : October 22 2020, 06:10 AM , By : alkar _game
Re-insert into channel causing deadlock
Re-insert into channel causing deadlock
this one helps. I have a steady inbound flow of "jobs" that I feed into an unbuffered channel. I have a for range loop to iterate over the items and process them. If processing the item fails, I re-insert the item back into the channel so I can try a
TAG : go
Date : October 21 2020, 06:10 AM , By : Ghani R-Zac
Golang detect if in focus or minimized
Golang detect if in focus or minimized
may help you . This is not possible from the library itself. A command line program does now have a focus, but the terminal program it is running in.To implement that (if possible at all) would be dependent on os, window manager etc.
TAG : go
Date : October 20 2020, 06:10 PM , By : Really Cute Cats
golang undefined: Scanner
golang undefined: Scanner
it helps some times As icza pointed out, Scanner is part of the sql package and the main package has no concept of a Scanner type. To make this code work you will need to do 2 things: Add import "database/sql" to the top of the file Change b.(Scanner
TAG : go
Date : October 20 2020, 06:10 PM , By : The Spartan
Same package name on different files
Same package name on different files
around this issue Can the function defined in the file b.go access a.go without importing anything? yesWhat can be the reasoning behind dividing the code into two different files? This is just a structuring mechanism, for example when the file would
TAG : go
Date : October 18 2020, 06:10 PM , By : Elton peter
How to stream result from grpc-server and how to return result from goroutines grpc server-stream to pass result to api
How to stream result from grpc-server and how to return result from goroutines grpc server-stream to pass result to api
it should still fix some issue If I understood you correctly -> this is server grpc endpoint and your problem is how to send models.DronePosition back to the client. If so, then you have bidirectional streaming and you can solve this problem as:
TAG : go
Date : October 18 2020, 06:10 PM , By : Spencer05
Go Interface property is undefined
Go Interface property is undefined
Hope that helps There are a couple of problems here:You can't call a method on an empty interface (interface{}) because the empty interface has no methods defined.
TAG : go
Date : October 17 2020, 06:10 AM , By : Joble Jose
How to parse variable depth arrays into a struct from JSON
How to parse variable depth arrays into a struct from JSON
Does that help Use json.RawMessage to capture the value that varies by geometry type:
TAG : go
Date : October 15 2020, 06:10 PM , By : Gino Scar
Building a small Go program for MIPS with no hardware floating point (softfloat required)
Building a small Go program for MIPS with no hardware floating point (softfloat required)
it helps some times I had to run Go on MIPS one time, and solved the problem by building the kernel with floating point emulation. It's slow but it works.
TAG : go
Date : October 15 2020, 06:10 PM , By : Asha Shinde
Address of Function Receiver Varies Between Methods
Address of Function Receiver Varies Between Methods
help you fix your problem That's simple: when you have var ms myStruct somewhere, calling ms.returnAddress() would pass the address of the ms variable to returnAddress, and that address would always be the same (this is easily verifyable — try it its
TAG : go
Date : October 14 2020, 04:00 AM , By : Estefania Cardona Ma
Does delve support hot swapping of changes or some variant?
Does delve support hot swapping of changes or some variant?
hope this fix your issue Delve is an amazing debugger. Does delve support hot swapping of changes or something similar like the java jvm? It takes me a lot of time to copy my code into docker's build vm, then build all the files, then build deploy d
TAG : go
Date : October 14 2020, 03:00 AM , By : Dave Ballesty
Migrating your App Engine app from Go 1.9 to Go 1.11
Migrating your App Engine app from Go 1.9 to Go 1.11
Does that help The migration document states that App Engine specific uflfetch package is superseded by the net/http package.Replace this code:
TAG : go
Date : October 14 2020, 02:00 AM , By : JSbeginner
How can I get the user's AppData folder path with golang?
How can I get the user's AppData folder path with golang?
like below fixes the issue It resides in user home folder, so you can get user folder and append AppData:
TAG : go
Date : October 14 2020, 02:00 AM , By : User8916
Should database connections be opened and closed in every CRUD method?
Should database connections be opened and closed in every CRUD method?
Does that help You should reuse a DB connection as much as you can. Also gorm has a built-in connection pool, so, you don't need to manage the db handle. Simply share it amongst all goroutines and they can share the handle safely, allocating new conn
TAG : go
Date : October 14 2020, 01:00 AM , By : Andy
Generic panic recovering in go programs
Generic panic recovering in go programs
this one helps. You have to "inject" some code into the function that is launched as a new goroutine: you have to call a deferred function in which you call recover(). This is the only way to recover from a panicing state. See related: Why does `defe
TAG : go
Date : October 13 2020, 06:00 PM , By : Swapnil Maddula
Output from benchmem
Output from benchmem
To fix the issue you can do The benchmark results are gathered in a value of type testing.BenchmarkResult:
TAG : go
Date : October 13 2020, 03:00 PM , By : Ala Salameh
How to use go importer
How to use go importer
this one helps. Go importer will not download the package for you. You can use dep or go modules to handle your dependencies, but an easy fix would be downloading the package directly to your gopath using go get:
TAG : go
Date : October 13 2020, 02:00 PM , By : Minhaj Alam
How to set unique at struct Beego
How to set unique at struct Beego
it should still fix some issue According to the documentation, you just add the word "unique" to the tag:
TAG : go
Date : October 13 2020, 11:00 AM , By : Nthabiseng En'airf M
Golang not incrementing by 0.1
Golang not incrementing by 0.1
I wish this help you A binary floating-point number can't hold 1/10 exactly, just like a decimal number with a finite number of digits can't hold 1/3 exactly. When you keep adding 0.1 repeatedly, the errors add up to enough that they show up in your
TAG : go
Date : October 13 2020, 07:00 AM , By : Gev Roosters
Conditional (Dynamic) Struct Tags
Conditional (Dynamic) Struct Tags
will help you You use different types to unmarshal. Basically, you write the unmarshaling code twice and either run the first version or the second. There is no dynamic solution to this.
TAG : go
Date : October 13 2020, 05:00 AM , By : Ryan Cook
How to get info about last called func in Go?
How to get info about last called func in Go?
seems to work fine Is it possible to get name of the last called function and args that were passed to?
TAG : go
Date : October 13 2020, 05:00 AM , By : Freeman
How expensive is os.Getenv?
How expensive is os.Getenv?
may help you . You can benchmark os.Getenv and see how fast it is. By looking at its implementation here, it costs:
TAG : go
Date : October 13 2020, 12:00 AM , By : Arouch Karima
shouldn't unreachable code after os.Exit be flagged
shouldn't unreachable code after os.Exit be flagged
help you fix your problem os.Exit() is just like any other function, the compiler should not know it terminates the app and so the rest of the code that follows is unreachable. os.Exit() is just one example and there are more, e.g.log.Fatal() (which
TAG : go
Date : October 12 2020, 09:00 PM , By : Lorenz
Can I use an pointer to "error" to catch the return error?
Can I use an pointer to "error" to catch the return error?
Any of those help The parameters to a deferred function are immediately evaluated when defer is reached. Thats why you have to use a pointer if you defer End itself.Instead you can use a closure. Your Bar() function would look like this:
TAG : go
Date : October 12 2020, 07:00 PM , By : Valentina Fernandez
Constant global user type values in Go
Constant global user type values in Go
it should still fix some issue No, there is not. Variables are called that because their values can be changed. In Go there is no "final" or similar modifier. Simplicity of the language.Only way to guard a variable from being changed from the outside
TAG : go
Date : October 12 2020, 07:00 PM , By : JosesFalco
Is it possible to compile go code without builtin library that can run on a machine without operating system
Is it possible to compile go code without builtin library that can run on a machine without operating system
it should still fix some issue Simple answer is no. Go relies on the operating system (Windows, linux, macOS, BSD). Go has a runtime designed to work on specific environments https://github.com/golang/go/wiki/MinimumRequirements.There are some open s
TAG : go
Date : October 12 2020, 05:00 PM , By : rattlesound
Is the following implementation making my code parallel?
Is the following implementation making my code parallel?
around this issue Your code does run concurrently*, but not necessarily in a very optimal way. You've essentially split your workload into two, and you're running both halves concurrently.
TAG : go
Date : October 12 2020, 04:00 PM , By : Colin Carr
Two go files having package declaration main inside a package
Two go files having package declaration main inside a package
wish help you to fix your issue You don't have to import app! you're in the same package which is main package.just remove the extra import, and use FunctionOne() no need for app
TAG : go
Date : October 12 2020, 02:00 PM , By : Михаил Машненков
Will go get command update the package in my local machine
Will go get command update the package in my local machine
I wish this help you The go get command will not update the local copy if there is already a local copy installed.The go get documentation says:
TAG : go
Date : October 12 2020, 02:00 PM , By : Kie SP
Should a developer commit Go generated code?
Should a developer commit Go generated code?
With these it helps In general, yes.The reasoning is simple: if I'm a downstream user of your code—that is, I want to merely include your library as a dependency or build your application,—there is no point in creating additional burden on me for bui
TAG : go
Date : October 12 2020, 01:00 PM , By : Terry Sun
Go atomic store followed by atomic load is behaving erratically across routines
Go atomic store followed by atomic load is behaving erratically across routines
hope this fix your issue Because the Set method has a value receiver, the receiver value and any changes to the value are discarded when the method returns. Fix the problem by using pointer receivers.
TAG : go
Date : October 12 2020, 01:00 PM , By : Christopher Martin
Created a type alias for big.Int - but I can't Set it using its pointer receiver?
Created a type alias for big.Int - but I can't Set it using its pointer receiver?
will help you That isn't a type alias, it's a new type, and therefor has none of the methods of the underlying big.Int type. A type alias would be type BigInt = big.Int, but then you couldn't define new methods on it. A type's methods are locked to i
TAG : go
Date : October 12 2020, 11:00 AM , By : Tom Korat
Find location of Golang application
Find location of Golang application
it helps some times Use os.Executable to find the path to the executable.
TAG : go
Date : October 12 2020, 10:00 AM , By : Giulio Zelante
golang time.Format() gives different results for the same unix timestamp
golang time.Format() gives different results for the same unix timestamp
wish help you to fix your issue The printed dates are different because they have different timezones.time.Unix() returns the local Time, while time.Parse():
TAG : go
Date : October 12 2020, 07:00 AM , By : Pham
How to make a function received different type as a string
How to make a function received different type as a string
I wish this help you No, you cannot. But for your purpose, you should implement a custom interface.
TAG : go
Date : October 12 2020, 07:00 AM , By : Nick
How to compile a golang program within the golang code?
How to compile a golang program within the golang code?
I wish this help you Unfortunately I think using exec.Command is your best bet to harness the tools written by the Go community in order to compile your go programs within a go program.
TAG : go
Date : October 12 2020, 07:00 AM , By : georgeg dk
Correct way of handling an error when implementing Less()
Correct way of handling an error when implementing Less()
it fixes the issue You can't; the closest solution would be to use sort.Slice instead, with a closure you can use to trap the error(s) in the outer scope:
TAG : go
Date : October 12 2020, 05:00 AM , By : ThaiDev
How to defer an anonymous function returned by a function
How to defer an anonymous function returned by a function
Any of those help Let’s say you have a function that sets up your application server and returns a function that should be run right before your application exits. , Your code does exactly what is expected:
TAG : go
Date : October 12 2020, 04:00 AM , By : Luke Hudson
HTTP PUT request handler using go
HTTP PUT request handler using go
like below fixes the issue From https://golang.org/pkg/net/http/ServeMux:
TAG : go
Date : October 12 2020, 12:00 AM , By : user6030036
how to add new currency support to golang.org/x/text/currency
how to add new currency support to golang.org/x/text/currency
this one helps. Considering the Currency Unit represents ISO_4217, and seems fairly complete, you can't extend it directly.You would need to go:
TAG : go
Date : October 11 2020, 10:00 PM , By : sainathramesh
How to set a constant to negative value in Go
How to set a constant to negative value in Go
it should still fix some issue I am writing code in Go to call some of the Windows trust and crypt dlls to verify file signatures. There are many constants in wincrypt.h that I have tried to port over verbatim but i've hit some issues with integer ov
TAG : go
Date : October 11 2020, 04:00 PM , By : pafkiet7239
Not able to encrypt using public key in golang
Not able to encrypt using public key in golang
wish helps you In the playground link you shared, your PEM key string is not formatted properly, it needs to be exactly like this:
TAG : go
Date : October 11 2020, 08:00 AM , By : Hackcr
Go 1.12 modules: local import in non-local import
Go 1.12 modules: local import in non-local import
hope this fix your issue From "Do modules work with relative imports like import "./subdir"?"
TAG : go
Date : October 11 2020, 08:00 AM , By : Simon Boulanger
How to convert int16 to hex-encoded string in Golang
How to convert int16 to hex-encoded string in Golang
I think the issue was by ths following , Since fmt.Println doesn't accept format flags, it prints each variable depending on its type.crc16.Checksum returns an int16, so fmt.Println will display the integer value of your hexadecimal string, which is
TAG : go
Date : October 11 2020, 04:00 AM , By : ctores
How to keep single AWS S3 session in app?
How to keep single AWS S3 session in app?
help you fix your problem bigS3 := s3.New(sess) assigns the value to a new variable local to the function, not the one you want. Change it to:
TAG : go
Date : October 11 2020, 03:00 AM , By : Alonso
Args and passing args from position[1] (not position 0)
Args and passing args from position[1] (not position 0)
this one helps. If the values coming it from the config file are in a format executable by shell, you're going to run into a host of problems just splitting on spaces (e.g. quoted arguments containing spaces). If you want to take in a command line th
TAG : go
Date : October 11 2020, 12:00 AM , By : Brooks Ryan
Read uint8 from []byte without creating a bytes.Buffer
Read uint8 from []byte without creating a bytes.Buffer
wish of those help Us an index expression to get an single uint8 from a slice.
TAG : go
Date : October 10 2020, 09:00 PM , By : Paweł
Why code in loop not executed when I have two go-routines
Why code in loop not executed when I have two go-routines
wish help you to fix your issue I'm facing a problem in golang , You have a race condition, run your program with -race flag
TAG : go
Date : October 10 2020, 07:00 PM , By : elenasuteva

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