glee

Glee is a simple way to parse JSON by taking in JSON and returning a string.

This is my first package, i’m new to gleam- I’m sure there are things I could do better

gleam add glee@2

Decoding JSON

Glee also provides functions to decode JSON into values:

Getting a string:

import glee
import gleam/io
import gleam/result

pub fn main() {
  let json = "{\"name\":\"John\",\"age\":30}"
  let result = glee.parse_json_string(json, "name")
  
  case result {
    Ok(name) -> io.println("Name: " <> name)
    Error(reason) -> io.println("Error: " <> reason)
  }
}

Getting a float:

import glee
import gleam/io
import gleam/float
import gleam/result

pub fn main() {
  let json = "{\"name\":\"John\",\"age\":30.4}"
  let result = glee.parse_json_float(json, "age")
  
  case result {
    Ok(age) -> io.println("Age: " <> float.to_string(age))
    Error(reason) -> io.println("Error: " <> reason)
  }
}

Getting an int:

import glee
import gleam/io
import gleam/int
import gleam/result

pub fn main() {
  let json = "{\"name\":\"John\",\"age\":30}"
  let result = glee.parse_json_int(json, "age")
  
  case result {
    Ok(age) -> io.println("Age: " <> int.to_string(age))
    Error(reason) -> io.println("Error: " <> reason)
  }
}

Encoding JSON

Glee also provides functions to encode values into JSON:

import glee
import gleam/io
import gleam/dict

pub fn main() {
  // Encode simple values
  let string_json = glee.encode_string("hello")  // "hello"
  let int_json = glee.encode_int(42)  // 42
  let float_json = glee.encode_float(3.14)  // 3.14
  let bool_json = glee.encode_bool(True)  // true
  
  // Create a simple JSON object
  let person = glee.create_json_object("name", glee.encode_string("Alice"))
  io.println(person)  // {"name":"Alice"}
  
  // Create a JSON object from multiple pairs
  let pairs = [
    #("name", glee.encode_string("Bob")),
    #("age", glee.encode_int(30)),
    #("active", glee.encode_bool(True))
  ]
  let complex_person = glee.create_json_object_from_pairs(pairs)
  io.println(complex_person)  // {"name":"Bob","age":30,"active":true}
  
  // Create a JSON array
  let values = [
    glee.encode_string("apple"),
    glee.encode_string("banana"),
    glee.encode_string("cherry")
  ]
  let fruits = glee.encode_list(values)
  io.println(fruits)  // ["apple","banana","cherry"]
}

Further documentation can be found at https://hexdocs.pm/glee.

Development

gleam test  # Run the tests