shhavel / uri_query

URI encode nested GET parameters and array values in Elixir

UriQuery

URI encode nested GET parameters and array values.

Prepares URI query parameters to be used in URI.encode_query/1 or HTTPoison.get/3

https://hexdocs.pm/uri_query/0.1.1/UriQuery.html

Installation

The package can be installed as:

1. Add uri_query to your list of dependencies in mix.exs:

def deps do
  [{:uri_query, "~> 0.2.0"}]
end

2. Ensure uri_query is started before your application:

def application do
  [applications: [:uri_query]]
end

Usage

With list values

iex> UriQuery.params(foo: ["bar", "quux"]) |> URI.encode_query
"foo%5B0%5D=bar&foo%5B1%5D=quux"

iex> UriQuery.params([foo: ["bar", "quux"]], add_indices_to_lists: false) |> URI.encode_query
"foo%5B%5D=bar&foo%5B%5D=quux"

iex> HTTPoison.get("http://example.com", [], params: UriQuery.params(foo: ["bar", "quux"]))

With nested structures (maps or keyword lists)

iex> UriQuery.params(%{user: %{name: "Dougal McGuire", email: "[e-mail]"}}) |> URI.encode_query
"user%5Bemail%5D=test%40example.com&user%5Bname%5D=Dougal+McGuire"

iex> params = %{user: %{name: "Dougal McGuire", email: "[e-mail]"}} |> UriQuery.params
[{"user[email]", "[e-mail]"}, {"user[name]", "Dougal McGuire"}]
iex> HTTPoison.get("http://example.com", [], params: params)

NOTE: Empty lists are ignored

iex> UriQuery.params(foo: []) |> URI.encode_query
""