change request method to POST to fix too long URLs in ubergraph requests

Author: jamesamcl

src/uberongraph_tools.py

@@ -5,6 +5,7 @@
 class UberonGraph():
     def __init__(self):
         self.sparql = SPARQLWrapper('https://ubergraph.apps.renci.org/sparql')
+        self.sparql.setMethod('POST')
         self.select_po = """
           PREFIX part_of: <http://purl.obolibrary.org/obo/BFO_0000050> 
           PREFIX UBERON: <http://purl.obolibrary.org/obo/UBERON_>
@@ -313,6 +314,8 @@ def query_uberon(self, terms, query):
       query = query % terms
       self.sparql.setReturnFormat(JSON)
       self.sparql.setQuery(query)
+
+      print(query)
 
       results = self.sparql.query().convert()
       if results["results"]["bindings"]:
@@ -499,4 +502,4 @@ def get_annotations(self, terms):
         terms = "\n".join(terms)
         annotations = self.construct_annotation(terms)
 
-      return annotations
+      return annotations