### Install ReceiptDecoder Elixir Package

Source: https://github.com/linjunpop/receipt_decoder/blob/master/README.md

This snippet demonstrates how to add the `receipt_decoder` package as a dependency in an Elixir project's `mix.exs` file. Including this line in the `deps` function ensures that the package is fetched and compiled when `mix deps.get` is run, making its functionalities available to your application.

```Elixir
def deps do
  [
    {:receipt_decoder, "~> 0.7.0"}
  ]
end
```

--------------------------------

### Compile ASN.1 to Erlang Modules for ReceiptDecoder Development

Source: https://github.com/linjunpop/receipt_decoder/blob/master/README.md

This command is used during the development of the `receipt_decoder` package to compile the ASN.1 definition file (`ReceiptModule.asn1`) into Erlang modules. This compilation step is crucial for the package's internal parsing mechanism, which relies on these modules to interpret the binary structure of iOS receipts.

```Elixir
$ mix receipt_decoder.compile_asn1
```

--------------------------------

### Decode iOS App Receipt in Elixir

Source: https://github.com/linjunpop/receipt_decoder/blob/master/README.md

This Elixir code illustrates the primary usage of the `receipt_decoder` package: decoding a Base64 encoded iOS App Store receipt. The `ReceiptDecoder.decode/1` function processes the input string and returns a tuple, typically `{:ok, %ReceiptDecoder.AppReceipt{...}}`, containing the parsed receipt data as a structured map.

```Elixir
ReceiptDecoder.decode(BASE64_ENCODED_RECEIPT)
# {:ok, %ReceiptDecoder.AppReceipt{...}}
```

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