Recent questions tagged go

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I am using goroutines in a package where there is a tcp server. The response most of the time is very ... answer there is the last suggestion. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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go - How to Create or Update a record with GORM?

Gorm has a FirstOrCreate method and a FirstOrInit but how to check afterwards if the record was actually created? ... to update some fields. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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go - Golang, a proper way to rewind file pointer

package main import ( "bufio" "encoding/csv" "fmt" "io" "log" "os" ) func main() { data, err := os. ... better to do r := ioutil.NewReader(data) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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go - Logging http responses (in addition to requests)

I am using Go and the Gorilla web toolkit's mux and handler packages to build a complex application, part of ... that I have not considered? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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go - FreeOSMemory() in production

I am using goroutines in a package where there is a tcp server. The response most of the time is very ... answer there is the last suggestion. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

1 answer

go - How to Create or Update a record with GORM?

Gorm has a FirstOrCreate method and a FirstOrInit but how to check afterwards if the record was actually created? ... to update some fields. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

go - Golang, a proper way to rewind file pointer

package main import ( "bufio" "encoding/csv" "fmt" "io" "log" "os" ) func main() { data, err := os. ... better to do r := ioutil.NewReader(data) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.3k views

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go - decoding JWT token in Golang

I am currently working on a Golang application.I receive a JWT token from the client side and, in Go I need to ... how to do it? Thank you! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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go - Is it best-practice to commit the `vendor` directory?

I am using dep to handle my Go dependencies. Is it best practice to also commit the vendor directory into ... after checking out a repository? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.4k views

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go - Golang cannot range over pointer to slice

I keep getting this error when trying to range over a slice pointer. app/domain/repositories/class_repository.go: ... Equipment []Equipment } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

go - How to create a binary that contains zoneinfo.zip

I'm using Docker to create a container application and then deploy it to kubernetes engine but when the ... no such file or directory See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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go - What does lexical file name order mean?

In the package initialization part of the Go specification, what does "lexical file name order" mean? To ensure ... name order to a compiler. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.6k views

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go - How to write a stream API using gin-gonic server in golang? Tried c.Stream didnt work

I wanted to create one streaming API using gin-gonic server in golang. func StreamData(c *gin.Context) { ... I might be doing. Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.6k views

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go - How to hide command prompt window when using Exec in Golang?

say i have the following code, using syscall to hide command line window process := exec.Command(name, args. ... will show those windows anyway See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.6k views

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go - "Merge" fields two structs of same type

Looking at this struct: type Config struct { path string id string key string addr string size uint64 } Now I ... it may become a problem later See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.4k views

1 answer

go - generate godoc documentation for an entire project?

I've been wrestling with godoc and found that "go doc" is more for providing usage help from the command ... contain many packages and apps. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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957 views

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go - Are deferred functions called when calling log.Fatalln?

db, err := sql.Open("postgres", " ") if err != nil { log.Fatalln(err) } defer db.Close() tpl, err ... error, is db.Close() still being called? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.0k views

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go - Access main package from other package

I want to access the main package from another package, but this is impossible because the main file isn't in a ... )? Or is it just stupid. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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go - Difference using pointer in struct fields

We can create structs in golang this way. Examples below: What are differences between these two? // Usual way type ... ) { // print here } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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go - How do I Unmarshal JSON?

I am trying to unmarshal JSON into a struct. However, the struct has a field with a tag. Using reflection, ... ://play.golang.org/p/YzrhjuXxGN See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

1 answer

go - Golang how to do type assertion for unknown interface?

I understand that I can get an object's value by reflection and then use type assertion to get back the ... you complete the type assertion? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.4k views

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go - GOPATH error in windows "GOPATH entry is relative; must be absolute path: "

I am new to GO and getting an error when initializing GOPATH in windows. In my project folder is C: ... go help gopath' for usage. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

go - How the slice is enlarged by append? Is the capacity always doubled?

When append a slice, the slice may be enlarged if necessary. Because the spec doesn't specify the algorithm, I am ... ? I can check it myself. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

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go - Docker container running golang http.Client getting error `certificate signed by unknown authority`

I created a docker container for talking to the google api using GoLang. I started off using a SCRATCH ... some certificate with the container. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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go - Mapping strings to multiple types for json objects?

I want to create a map that I can transform into a json object such as { "a": "apple", "b": 2 } but golang ... :"a"` B int `json:"b"` } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.1k views

1 answer

go - Remove path from filename

I have trivial question. I have string which contains a filename and it's path. How can i remove whole path ... without last slash Thanks a lot See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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981 views

1 answer

go - Limiting amount of data read in the response to a HTTP GET request

I'm scraping HTML pages and have set up a HTTP client like so: client := *http.Client{ Transport: &http. ... accepts from a resource and stops? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.0k views

1 answer

go - Remove path from filename

I have trivial question. I have string which contains a filename and it's path. How can i remove whole path ... without last slash Thanks a lot See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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