Rwm 90 (#81)

* fix json output handler

* bump version

Author: AndrewNepogoda

workflow/__init__.py

@@ -12,5 +12,5 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version_info__ = (0, 0, 46)
+__version_info__ = (0, 0, 47)
 __version__ = ".".join(map(str, __version_info__))

workflow/rai.py

@@ -318,9 +318,15 @@ def output = json_string[...]
     """
     if not rsp.results:
         return {}
-    pa_table = rsp.results[0]['table']
-    data = pa_table.to_pydict()
-    return json.loads(data["v1"][0])
+    output_result = {}
+    for result in rsp.results:
+        if result['relationId'] == "/:output/String":
+            pa_table = result['table']
+            output_result = pa_table.to_pydict()
+            break
+    if not output_result:
+        return {}
+    return json.loads(output_result["v1"][0])
 
 
 def _parse_string(rsp: api.TransactionAsyncResponse) -> str: