AtomicGo | utils

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go get atomicgo.dev/utils

utils

import "atomicgo.dev/utils"

Package utils is a collection of useful, quickly accessible utility functions.

Index

• func AppendToFile[T string | []byte](path string, content T) error
• func DownloadFile(url, path string) error
• func Fetch(url string) (string, error)
• func FileExists(path string) bool
• func PrettyJSON(inputJSON string, indent ...string) (string, error)
• func ReadFile(path string) (string, error)
• func Ternary[T any](condition bool, a, b T) T
• func ToInt[T string | constraints.Number](value T) int
• func ToJSON(v any) (string, error)
• func ToPrettyJSON(v any, indent ...string) (string, error)
• func ToString(v any) string
• func WriteFile[T string | []byte](path string, content T) error

func AppendToFile

func AppendToFile[T string | []byte](path string, content T) error

AppendToFile appends the given content to the given file. Accepts a string or a byte slice.

func DownloadFile

func DownloadFile(url, path string) error

DownloadFile downloads the given URL to the given path. If the file already exists, it will be overwritten.

func Fetch

func Fetch(url string) (string, error)

Fetch returns the body of a GET request to the given URL.

func FileExists

func FileExists(path string) bool

FileExists returns true if the given file exists.

func PrettyJSON

func PrettyJSON(inputJSON string, indent ...string) (string, error)

PrettyJSON returns a pretty-printed JSON string. If indent is not provided, it defaults to " " (two spaces).

person := Person{Name: "John Doe", Age: 42}
json, _ := utils.ToJSON(person)
prettyJSON, _ := utils.PrettyJSON(json)
fmt.Println(prettyJSON)

// Output:
// {
//   "Name": "John Doe",
//   "Age": 42
// }

Output

{
  "Name": "John Doe",
  "Age": 42
}

func ReadFile

func ReadFile(path string) (string, error)

ReadFile reads the given file and returns its content.

func Ternary

func Ternary[T any](condition bool, a, b T) T

Ternary is a ternary operator. It returns a if the condition is true, otherwise it returns b.

package main

import (
	"fmt"

	"atomicgo.dev/utils"
)

func main() {
	fmt.Println(utils.Ternary(true, "a", "b"))
	fmt.Println(utils.Ternary(false, "a", "b"))

}

Output

a
b

func ToInt

func ToInt[T string | constraints.Number](value T) int

ToInt converts the given value to an int. If the value is a float, it will be rounded to the nearest integer. (Rounds up if the decimal is 0.5 or higher)

package main

import (
	"fmt"

	"atomicgo.dev/utils"
)

func main() {
	fmt.Println(utils.ToInt(1337))
	fmt.Println(utils.ToInt(1337.4))
	fmt.Println(utils.ToInt(1337.5))
	fmt.Println(utils.ToInt(1337.6))
	fmt.Println(utils.ToInt("1337"))
	fmt.Println(utils.ToInt("1337.4"))
	fmt.Println(utils.ToInt("1337.5"))
	fmt.Println(utils.ToInt("1337.6"))

}

Output

1337
1337
1338
1338
1337
1337
1338
1338

func ToJSON

func ToJSON(v any) (string, error)

ToJSON converts the given value to a JSON string.

package main

import (
	"fmt"

	"atomicgo.dev/utils"
)

type Person struct {
	Name string
	Age  int
}

func main() {
	person := Person{"John Doe", 42}

	json, _ := utils.ToJSON(person)
	fmt.Println(json)

}

Output

{"Name":"John Doe","Age":42}

func ToPrettyJSON

func ToPrettyJSON(v any, indent ...string) (string, error)

package main

import (
	"fmt"

	"atomicgo.dev/utils"
)

type Person struct {
	Name string
	Age  int
}

func main() {
	person := Person{Name: "John Doe", Age: 42}
	prettyJSON, _ := utils.ToPrettyJSON(person)
	fmt.Println(prettyJSON)

}

Output

{
  "Name": "John Doe",
  "Age": 42
}

func ToString

func ToString(v any) string

ToString converts the given value to a string.

package main

import (
	"fmt"

	"atomicgo.dev/utils"
)

type Person struct {
	Name string
	Age  int
}

func main() {
	person := Person{"John Doe", 42}

	fmt.Println(utils.ToString(person))

}

Output

{John Doe 42}

func WriteFile

func WriteFile[T string | []byte](path string, content T) error

WriteFile writes the given content to the given file. Accepts a string or a byte slice.

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