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How Do You Represent a JSON Field That Could Be Absent, null or Have a Value? — Why it’s surprisingly hard to work out if a field has been sent or whether it’s explicitly null when using encoding/json, plus a new library to help with the problem.

I needed to have an automation solution via email. Something like, when an email arrives, please issue an invoice with data from the email or something like that. I was searching for services that support it, but I found quite complicated services (needed to register, and log in and other hassle) with no easy way to use them. So I have decided to write...

I have defined the keys under xml tags. But I find my response to be always application/json. How do I return an XML response? package main import ( "gofr.dev/pkg/gofr" ) type Response struct { Dial string `xml:"Dial"` } func main() { app := gofr.New() app.GET("/dial", func(ctx *gofr.Context) (interface{}, error) { return Response{Dial: "9999999999"}, nil }) app.Start() } When I hit the API curl --location...