Update docs and CHANGELOG

CHANGELOG.md

@@ -5,9 +5,15 @@ All notable changes to this project will be documented in this file.
 
 ## Unreleased
 
+## 4.20.0 - 2023-08-22
+
 ### Added
 
 - The `amqp1` input now supports `anonymous` SASL authentication.
+- New JWT Bloblang methods `parse_jwt_es256`, `parse_jwt_es384`, `parse_jwt_es512`, `parse_jwt_rs256`, `parse_jwt_rs384`, `parse_jwt_rs512`, `sign_jwt_es256`, `sign_jwt_es384` and `sign_jwt_es512` added.
+- The `csv-safe` input codec now supports custom delimiters with the syntax `csv-safe:x`.
+- The `open_telemetry_collector` tracer now supports secure connections, enabled via the `secure` field.
+- Function `v0_msg_exists_meta` added to the `javascript` processor.
 
 ### Fixed
 

internal/log/slog_test.go

@@ -52,6 +52,15 @@ func TestSlogToBenthosLoggerAdapterMapKV(t *testing.T) {
 	logger.Warnln("Warning message foo fields")
 	logger.Warnf("Warning message root module\n")
 
-	expected := "time=\"\" level=WARN msg=\"Warning message foo fields\" foo=bar count=10 thing=\"is a string\" iscool=true\ntime=\"\" level=WARN msg=\"Warning message root module\\n\" foo=bar count=10 thing=\"is a string\" iscool=true\n"
-	assert.Equal(t, expected, buf.String())
+	bufStr := buf.String()
+
+	for _, exp := range []string{
+		"time=\"\" level=WARN msg=\"Warning message foo fields\"",
+		"foo=bar",
+		"count=10",
+		"thing=\"is a string\" iscool=true",
+		"time=\"\" level=WARN msg=\"Warning message root module\\n\"",
+	} {
+		assert.Contains(t, bufStr, exp)
+	}
 }

website/docs/components/processors/javascript.md

@@ -147,6 +147,20 @@ Obtain the root of the processed message as a structured value. If the message i
 let foo = benthos.v0_msg_as_structured().foo;
 ```
 
+### `benthos.v0_msg_exists_meta`
+
+Check that a metadata key exists.
+
+#### Parameters
+
+**`name`** <string> The metadata key to search for.  
+
+#### Examples
+
+```javascript
+if (benthos.v0_msg_exists_meta("kafka_key")) {}
+```
+
 ### `benthos.v0_msg_get_meta`
 
 Get the value of a metadata key from the processed message.