How to check string is in json format

Question

I want to create a function to receive an input string which can be string in json format or just a string. For example, something easy like following function.

Answer 1

This might be an older post to the actual function in the standard library.

But you can just use the json.Valid() function in the "encoding/json" package.

   var tests = []string{
    `"Platypus"`,
    `Platypus`,
    `{"id":"1"}`,
    `{"id":"1}`,
}

for _, t := range tests {
    fmt.Printf("is valid: (%s) = %v\n", t, json.Valid([]byte(t)))
    
}

example https://play.golang.org/p/nfvOzQB919s