allow specifying parent-node for data

README.md

@@ -24,3 +24,4 @@ Advanced settings can be provided via a top level json key named "config". Here
 |---------------|---------------|---------------------------|
 | key-order | "Column3,Column1,Column2"| Comma separated list of column names in the desired order |
 | overwrite-file | true | Boolean indicating whether output file should be overwritten if it already exists |
+| parent-node | "results" | Specify an alternate starting key for the spreadsheet data than just the first non-config key. Useful with json structures with multiple top-level keys |

cmd/main/main.go

@@ -19,6 +19,7 @@ import (
 
 type Config struct {
 	keyOrder       map[int]string
+	parentOverride string
 }
 
 var config Config
@@ -99,6 +100,7 @@ func main() {
 		}
 
 		// Get an interface that we can work with to access the sub elements
+		// This doesn't seem necessary for some reason - maybe because there's only one level of depth to the configNode
 		//configSlice := configInterface
 		//fmt.Printf("%v\n", configSlice)
 
@@ -119,6 +121,10 @@ func main() {
 				fmt.Printf("Found config element for overwriting output file\n")
 				e, _ := configMap.Get(key)
 				overwriteFile = e.(bool)
+			} else if strings.EqualFold(key, "parent-node") {
+				fmt.Printf("Found config element for forcing parent key for spreadsheet data\n")
+				e, _ := configMap.Get(key)
+				config.parentOverride = e.(string)
 			}
 		}
 	} else if strings.EqualFold(topLevel[0], configNode) {
@@ -129,6 +135,11 @@ func main() {
 		parentNode = topLevel[0]
 	}
 
+	if config.parentOverride != "" {
+		fmt.Printf("Overriding parent node to '%s'\n", config.parentOverride)
+		parentNode = config.parentOverride
+	}
+
 	// Get a reference to the top level node we specified earlier
 	vislice, ok := o.Get(parentNode)
 	if !ok {