42 lines
1.5 KiB
Markdown
42 lines
1.5 KiB
Markdown
---
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layout: "language"
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page_title: "textdecodebase64 - Functions - Configuration Language"
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sidebar_current: "docs-funcs-encoding-textdecodebase64"
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description: |-
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The textdecodebase64 function decodes a string that was previously Base64-encoded,
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and then interprets the result as characters in a specified character encoding.
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---
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# `textdecodebase64` Function
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-> **Note:** This function is supported only in Terraform v0.14 and later.
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`textdecodebase64` function decodes a string that was previously Base64-encoded,
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and then interprets the result as characters in a specified character encoding.
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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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The `encoding_name` argument must contain one of the encoding names or aliases
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recorded in
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[the IANA character encoding registry](https://www.iana.org/assignments/character-sets/character-sets.xhtml).
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Terraform supports only a subset of the registered encodings, and the encoding
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support may vary between Terraform versions.
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Terraform accepts the encoding name `UTF-8`, which will produce the same result
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as [`base64decode`](./base64decode.html).
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## Examples
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```
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> textdecodebase64("SABlAGwAbABvACAAVwBvAHIAbABkAA==", "UTF-16LE")
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Hello World
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```
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## Related Functions
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* [`textencodebase64`](./textencodebase64.html) performs the opposite operation,
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applying target encoding and then Base64 to a string.
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* [`base64decode`](./base64decode.html) is effectively a shorthand for
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`textdecodebase64` where the character encoding is fixed as `UTF-8`.
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