I am new to elixir devlopement , my map is looks like follow map = %{"name" => "test"} But when i trying to access map.name I am getting error like (KeyError) key :name not found in: %{"name" => "test"} why i can’t get map value whose key is string

The map.keyname mechanism only works when atoms are used as keys. When using strings you can use Map.get: iex(3)> Map.get(map, "name") "test" or the syntax: iex(4)> map["name"] "test" So you could instead use atoms for keys: iex(5)> map = %{:name => "test"} %{name: "test"} iex(6)> map.name "te…

Please do note that when you work with user input, you should always work with a map with string keys, and not atom keys, because if you auto-convert user input to atoms, you will open up your system to a Denial of Service attack because atoms are not garbage collected. Always use String.to_existing…

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Key not found - Map?

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hariharasudhan94 April 7, 2017, 10:57am 4

@Qqwy thanks for your valuable note