Allow digit as first chr in vendor specific trace state key

open-telemetry · Mar 19, 2020 · f8179e4 · f8179e4
1 parent 12b4d6a
commit f8179e4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/opentelemetry-api/src/opentelemetry/trace/propagation/tracecontexthttptextformat.py b/opentelemetry-api/src/opentelemetry/trace/propagation/tracecontexthttptextformat.py
@@ -33,7 +33,7 @@
 
 _KEY_WITHOUT_VENDOR_FORMAT = r"[a-z][_0-9a-z\-\*\/]{0,255}"
 _KEY_WITH_VENDOR_FORMAT = (
-    r"[a-z][_0-9a-z\-\*\/]{0,240}@[a-z][_0-9a-z\-\*\/]{0,13}"
+    r"[a-z0-9][_0-9a-z\-\*\/]{0,240}@[a-z][_0-9a-z\-\*\/]{0,13}"
 )
 
 _KEY_FORMAT = _KEY_WITHOUT_VENDOR_FORMAT + "|" + _KEY_WITH_VENDOR_FORMAT