Query String Builder

A JavaScript library for building and encoding query strings.

Installation

npm install ts-query-string

Usage

import { QueryStringBuilder } from "ts-query-string";

const qs = QueryStringBuilder()
  .add({ name: "param1", value: "value1" })
  .add({ name: "param2", value: 2 })
  .add({ name: "param3", value: "value3" })
  .add({ name: "param4", value: "value4 with spaces" });
  .add({ name: "param4", value: ["value5","value6"] as ["value5","value6"] });
  .build();
type QS = typeof qs; // QS = "param1=value1&param2=2&param3=value3&param4=value4%20with%20spaces&param4=value5&param4=value6"

console.log(qs); // QS = "param1=value1&param2=2&param3=value3&param4=value4%20with%20spaces&param4=value5&param4=value6"

API Reference

QueryStringBuilder

A class for building a query string.

add

Add a name-value pair to the query string.

function add<Name extends string, Value extends ResolveableQueryValue>(input: {
  name: Name;
  value: Value;
}): QueryStringBuilder<[...T, typeof input]>;

build

Build the query string from the name-value pairs.

function build(): EncodeQueryString<T>;

EncodeQueryString

A type that represents a query string encoded from the name-value pairs of type T.

type EncodeQueryString<T extends QueryValue[]> = ...

EncodeUri

A type that represents the result of encoding a ResolveableQueryValue type.

type EncodeUri<T extends ResolveableQueryValue> = ...

ResolveableQueryValue

A type that represents a value that can be resolved to a string.

type ResolveableQueryValue = string | number | boolean;

ResolveableArrayQueryValue

A type that represents a value that can be resolved to a string array.

type ResolveableArrayQueryValue = ResolveableQueryValue[];

Notes

• The add method returns a new instance of QueryStringBuilder with the new name-value pair added to the type parameter T.
• If you insert a value that is not a ResolveableQueryValue type, the compiler will throw an error.
• This package is written in TypeScript and the types are exported.
• If somehow you get an Unecodeable<{character}> in your query string type please open an issue or pull request.