I finally figured it out… You can keep the templates folder in the main folder and embed them from there. Then you need to inject the FS variable into the other handler package. It’s always easy after you figure it out. e.g. package main //go:embed templates/* var templateFs embed.FS func main() { handlers.TemplateFs = templateFs … Read more
http.Handle(“https://stackoverflow.com/”, http.FileServer(http.Dir(“css/”))) Would serve your css directory at /. Of course you can serve whichever directory at whatever path you choose. You probably want to make sure that the static path isn’t in the way of other paths and use something like this. http.Handle(“/static/”, http.StripPrefix(“/static/”, http.FileServer(http.Dir(“static”)))) Placing both your js and css in the directory … Read more
Actually no explicit flags, this Go wiki page lists optimizations done by the Go compiler and there was a discussion around this topic in golang-nuts groups. You can turn off optimization and inlining in Go gc compilers for debugging. -gcflags ‘-N -l’ -N : Disable optimizations -l : Disable inlining
Not sure which solution is fastest without a benchmark, but an alternative is using the built in copy: cpy := make([]T, len(orig)) copy(cpy, orig) From the documentation: func copy(dst, src []Type) int The copy built-in function copies elements from a source slice into a destination slice. (As a special case, it also will copy bytes … Read more
That’s a case when you need to implement custom marshal and unmarshal functions. UnmarshalJSON(b []byte) error { … } MarshalJSON() ([]byte, error) { … } By following the example in the Golang documentation of json package you get something like: // First create a type alias type JsonBirthDate time.Time // Add that to your struct … Read more
Currently there’s no compile-time optimisation; the values are padded to 8 bytes on x64. You can manually arrange structs to optimally utilise space; typically by going from larger types to smaller; 8 consecutive byte fields for example, will only use 8 bytes, but a single byte would be padded to an 8 byte alignment, consider … Read more
Remove the space after the comma before omitempty, then the error message will go away. bson:”password” json:”password,omitempty” (should be like this) In addition, this is a warning not an error. You should still be able to run your project.
For postgresql, here is what I did: go get github.com/google/uuid Use uuid.UUID (from “github.com/google/uuid”), as type, e.g ID uuid.UUID `gorm:”type:uuid;default:uuid_generate_v4()”` Add uuid-ossp extension for postgres database, e.g CREATE EXTENSION IF NOT EXISTS “uuid-ossp”; Then, when you call DB’s Create() method, the uuid is generated automatically. Update: pg14+ gen_random_uuid() (as mentioned in Doron Segal‘s comment) pg … Read more
To perform an, in effect, a realloc of a slice: a = append([]T(nil), a[:newSize]…) // Thanks to @Dijkstra for pointing out the missing ellipsis. If it does a copy of newSize elements to a new memory place or if it does an actual in place resize as in realloc(3) is at complete discretion of the … Read more
The Vector3.Normalize() method has a pointer receiver, so in order to call this method, a pointer to Vector3 value is required (*Vector3). In your first example you store the return value of Vector3.Minus() in a variable, which will be of type Vector3. Variables in Go are addressable, and when you write diff.Normalize(), this is a … Read more