Handle rendering json arrays and objects

src/bin.rs

@@ -79,8 +79,13 @@ impl Renderable for serde_json::Value {
             serde_json::Value::Bool(boolean) => Ok(boolean.to_string()),
             serde_json::Value::Number(num) => Ok(num.to_string()),
             serde_json::Value::String(string) => Ok(string.to_string()),
-            serde_json::Value::Array(_arr) => Err(RenderError::CantRender { elem: self }),
-            serde_json::Value::Object(_obj) => Err(RenderError::CantRender { elem: self }),
+            serde_json::Value::Array(arr) => {
+                let rendered: Result<Vec<String>, RenderError> =
+                    arr.iter().map(|val| val.render()).collect();
+                let rendered_slice: &[String] = &rendered?;
+                Ok(rendered_slice.join(","))
+            }
+            serde_json::Value::Object(_obj) => Ok("[object Object]".to_owned()),
         }
     }
 }