An implementation of RFC 6901 which defines a string syntax for identifying a specific value within a JSON document.
Add a dependency to your project mix.exs:
def deps do
[{:json_pointer, "~> 0.1.0"}]
enddocument = %{
"key" => "value",
"list" => [1, 2, 3],
"deeply" => %{
"nested" =>
%{"values" => [
%{"x" => 1},
%{"x" => 2}
]
}
}
}
JSONPointer.resolve(document, "/key")
# => {:ok, "value"}
JSONPointer.resolve(document, "/list/1")
# => {:ok, 2}
JSONPointer.resolve(document, "/deeply/nested/values/0")
# => {:ok, %{"x" => 1}}
JSONPointer.resolve(document, "/deeply/nested/values/1/x")
# => {:ok, 2}
JSONPointer.resolve(document, "/list/4")
# => {:error, "index 4 out of bounds in [1, 2, 3]"}This library works with deserialized documents and does not include a JSON parser.
In order of appearance: