Bjørn Erik Pedersen e4824eb3fe Fix the output shortcode and its usage
Passing the shortcode into the Markdown processor just to get pre and code tags does not make much sense.
2017-07-21 13:06:11 +02:00

52 lines
1.6 KiB
Markdown

---
title: base64
description: "`base64Encode` and `base64Decode` let you easily decode content with a base64 encoding and vice versa through pipes."
godocref:
date: 2017-02-01
publishdate: 2017-02-01
lastmod: 2017-02-01
categories: [functions]
menu:
docs:
parent: "functions"
#tags: []
relatedfuncs: []
signature: ["base64Decode INPUT", "base64Encode INPUT"]
workson: []
hugoversion:
deprecated: false
draft: false
aliases: []
---
An example:
{{< code file="base64-input.html" >}}
<p>Hello world = {{ "Hello world" | base64Encode }}</p>
<p>SGVsbG8gd29ybGQ = {{ "SGVsbG8gd29ybGQ=" | base64Decode }}</p>
{{< /code >}}
{{< output file="base-64-output.html" >}}
<p>Hello world = SGVsbG8gd29ybGQ=</p>
<p>SGVsbG8gd29ybGQ = Hello world</p>
{{< /output >}}
You can also pass other data types as arguments to the template function which tries to convert them. The following will convert *42* from an integer to a string because both `base64Encode` and `base64Decode` always return a string.
```
{{ 42 | base64Encode | base64Decode }}
=> "42" rather than 42
```
## `base64` with APIs
Using base64 to decode and encode becomes really powerful if we have to handle
responses from APIs.
```
{{ $resp := getJSON "https://api.github.com/repos/gohugoio/hugo/readme" }}
{{ $resp.content | base64Decode | markdownify }}
```
The response of the GitHub API contains the base64-encoded version of the [README.md](https://github.com/gohugoio/hugo/blob/master/README.md) in the Hugo repository. Now we can decode it and parse the Markdown. The final output will look similar to the rendered version on GitHub.