Add metadata assembly switch

src/config_web.py

@@ -22,7 +22,12 @@
 API_VERSION = 'v1'
 APP_LIST = [
     (r'/v1/variant/(chr.{1,2}):(?!g\.)[g\.]{0,2}(\d+.*)', 'tornado.web.RedirectHandler', {'url': '/v1/variant/{0}:g.{1}'}),
-] + APP_LIST
+] + APP_LIST + [
+    (r"/{pre}/metadata/fields/?", 'web.handlers.MVMetadataFieldHandler'),
+    (r"/{pre}/metadata/?", 'web.handlers.MVMetadataSourceHandler'),
+    (r"/{pre}/{ver}/metadata/fields/?", 'web.handlers.MVMetadataFieldHandler'),
+    (r"/{pre}/{ver}/metadata/?", 'web.handlers.MVMetadataSourceHandler'),
+]
 # *****************************************************************************
 # ES Query Pipeline
 # *****************************************************************************
@@ -66,14 +71,16 @@
 ANNOTATION_DEFAULT_SCOPES = ['_id', 'clingen.caid']
 
 # typedef for assembly parameter
-ASSEMBLY_TYPEDEF = {'assembly': {'type': str, 'default': 'hg19', 'enum': ('hg19', 'hg38'), 'group':('esqb', 'es')}}
+ASSEMBLY_TYPEDEF = {'assembly': {'type': str, 'default': 'hg19', 'enum': ('hg19', 'hg38'), 'group': ('esqb', 'es')}}
 
 ANNOTATION_KWARGS = copy.deepcopy(ANNOTATION_KWARGS)
 ANNOTATION_KWARGS['*'].update(ASSEMBLY_TYPEDEF)
 
 QUERY_KWARGS = copy.deepcopy(QUERY_KWARGS)
 QUERY_KWARGS['*'].update(ASSEMBLY_TYPEDEF)
 
+METADATA_KWARGS = {'*': ASSEMBLY_TYPEDEF}
+
 LICENSE_TRANSFORM = {
     "exac_nontcga": "exac",
     "gnomad_exome": "gnomad",

src/web/handlers.py

@@ -0,0 +1,19 @@
+from tornado.web import RequestHandler
+
+from biothings.web.handlers.es import (MetadataFieldHandler,
+                                       MetadataSourceHandler)
+
+
+class AssemblyAwareMixin(RequestHandler):
+
+    def prepare(self):
+        super().prepare()
+        self.biothing_type = self.args.es.assembly
+
+class MVMetadataFieldHandler(AssemblyAwareMixin, MetadataFieldHandler):
+
+    pass
+
+class MVMetadataSourceHandler(AssemblyAwareMixin, MetadataSourceHandler):
+
+    pass