From 4c4f922ecd0c12b55300b1f07e03dad83674b12d Mon Sep 17 00:00:00 2001
From: Ben Schulz <110361904+ben-schulz-mh@users.noreply.github.com>
Date: Fri, 27 Dec 2024 13:23:48 +1000
Subject: [PATCH] feat: add SHA256 encryption method to inline stream maps

---
 singer_sdk/mapper.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/singer_sdk/mapper.py b/singer_sdk/mapper.py
index 004d0f60a..f0d9265d4 100644
--- a/singer_sdk/mapper.py
+++ b/singer_sdk/mapper.py
@@ -63,6 +63,12 @@ def md5(string: str) -> str:
     return hashlib.md5(string.encode("utf-8")).hexdigest()  # noqa: S324
 
 
+def sha256(value: str) -> str:
+    """Digest a string using SHA256. This is a function for inline calculations."""
+
+    return hashlib.sha256(value.encode("utf-8")).hexdigest()
+
+
 StreamMapsDict: TypeAlias = dict[str, t.Union[str, dict, None]]
 
 
@@ -307,6 +313,7 @@ def functions(self) -> dict[str, t.Callable]:
         """
         funcs: dict[str, t.Any] = simpleeval.DEFAULT_FUNCTIONS.copy()
         funcs["md5"] = md5
+        funcs["sha256"] = sha256
         funcs["datetime"] = datetime
         funcs["bool"] = bool
         funcs["json"] = json