Remove JSON opinion from babashka package (#3)

babashka/ops.go

@@ -2,7 +2,6 @@ package babashka
 
 import (
 	"bufio"
-	"encoding/json"
 	"os"
 
 	"github.com/jackpal/bencode-go"
@@ -57,18 +56,10 @@ func WriteDescribeResponse(describeResponse *DescribeResponse) {
 	writeResponse(*describeResponse)
 }
 
-func WriteInvokeResponse(inputMessage *Message, value interface{}) error {
-	if value == nil {
-		return nil
-	}
-	resultValue, err := json.Marshal(value)
-	if err != nil {
-		return err
-	}
-	response := InvokeResponse{Id: inputMessage.Id, Status: []string{"done"}, Value: string(resultValue)}
-	writeResponse(response)
+func WriteInvokeResponse(inputMessage *Message, value string) error {
+	response := InvokeResponse{Id: inputMessage.Id, Status: []string{"done"}, Value: value}
 
-	return nil
+	return writeResponse(response)
 }
 
 func WriteErrorResponse(inputMessage *Message, err error) {

main.go

@@ -1,6 +1,8 @@
 package main
 
 import (
+	"encoding/json"
+
 	"github.com/babashka/pod-babashka-sqlite3/babashka"
 	"github.com/babashka/pod-babashka-sqlite3/pod"
 )
@@ -24,6 +26,11 @@ func main() {
 			babashka.WriteDescribeResponse(describeRes)
 			continue
 		}
-		babashka.WriteInvokeResponse(message, res)
+
+		if json, err := json.Marshal(res); err != nil {
+			babashka.WriteErrorResponse(message, err)
+		} else {
+			babashka.WriteInvokeResponse(message, string(json))
+		}
 	}
 }