56 lines
2.2 KiB
Markdown
56 lines
2.2 KiB
Markdown
---
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layout: "functions"
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page_title: "base64encode - Functions - Configuration Language"
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sidebar_current: "docs-funcs-encoding-base64encode"
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description: |-
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The base64encode function applies Base64 encoding to a string.
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---
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# `base64encode` Function
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-> **Note:** This page is about Terraform 0.12 and later. For Terraform 0.11 and
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earlier, see
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[0.11 Configuration Language: Interpolation Syntax](../../configuration-0-11/interpolation.html).
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`base64encode` applies Base64 encoding to a string.
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Terraform uses the "standard" Base64 alphabet as defined in
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[RFC 4648 section 4](https://tools.ietf.org/html/rfc4648#section-4).
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Strings in the Terraform language are sequences of unicode characters rather
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than bytes, so this function will first encode the characters from the string
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as UTF-8, and then apply Base64 encoding to the result.
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The Terraform language applies Unicode normalization to all strings, and so
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passing a string through `base64decode` and then `base64encode` may not yield
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the original result exactly.
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While we do not recommend manipulating large, raw binary data in the Terraform
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language, Base64 encoding is the standard way to represent arbitrary byte
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sequences, and so resource types that accept or return binary data will use
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Base64 themselves, and so this function exists primarily to allow string
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data to be easily provided to resource types that expect Base64 bytes.
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`base64encode` is, in effect, a shorthand for calling
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[`textencodebase64`](./textencodebase64.html) with the encoding name set to
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`UTF-8`.
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## Examples
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```
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> base64encode("Hello World")
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SGVsbG8gV29ybGQ=
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```
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## Related Functions
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* [`base64decode`](./base64decode.html) performs the opposite operation,
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decoding Base64 data and interpreting it as a UTF-8 string.
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* [`textencodebase64`](./textencodebase64.html) is a more general function that
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supports character encodings other than UTF-8.
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* [`base64gzip`](./base64gzip.html) applies gzip compression to a string
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and returns the result with Base64 encoding all in one operation.
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* [`filebase64`](./filebase64.html) reads a file from the local filesystem
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and returns its raw bytes with Base64 encoding, without creating an
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intermediate Unicode string.
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