QueryStringifyStruct

func QueryStringifyStruct[T any](values T, structTags ...string) string

Creates a query string from a given struct instance. Takes struct tag names as optional parameters.

package main

import (
    "fmt"

    "github.com/Goldziher/go-utils/urlutils"
)

func main() {
    values := struct {
        User    string
        Active  bool
        Age     int `qs:"age"`
        Friends []int
    }{
        User:    "moishe",
        Active:  true,
        Age:     100,
        Friends: []int{1, 2, 3, 4, 5, 6},
    }

    result := urlutils.QueryStringifyStruct(values, "qs")

    fmt.Print(result) // "Active=true&Friends=1&Friends=2&Friends=3&Friends=4&Friends=5&Friends=6&User=moishe&age=100"
}

You can pass as many struct tags as you deem necessary, for example the following will also work:

package main

import (
    "fmt"

    "github.com/Goldziher/go-utils/urlutils"
)

func main() {
    values := struct {
        User    string
        Active  bool `json:"active"`
        Age     int `qs:"age"`
        Friends []int
    }{
        User:    "moishe",
        Active:  true,
        Age:     100,
        Friends: []int{1, 2, 3, 4, 5, 6},
    }

    result := urlutils.QueryStringifyStruct(values, "json", "qs")

    fmt.Print(result) // "Friends=1&Friends=2&Friends=3&Friends=4&Friends=5&Friends=6&User=moishe&active=true&age=100"
}

If you want to ignore a field, simply use the conventional tag value of "-":

package main

import (
    "fmt"

    "github.com/Goldziher/go-utils/urlutils"
)

func main() {
    values := struct {
        User    string
        Active  bool
        Age     int `qs:"-"`
        Friends []int
    }{
        User:    "moishe",
        Active:  true,
        Age:     100,
        Friends: []int{1, 2, 3, 4, 5, 6},
    }

    result := urlutils.QueryStringifyStruct(values, "qs")

    fmt.Print(result) // "Active=true&Friends=1&Friends=2&Friends=3&Friends=4&Friends=5&Friends=6&User=moishe"
}