add support for custom speech api (#121)

lib/routes/api/speech-credentials.js

@@ -53,7 +53,8 @@ const encryptCredential = (obj) => {
     stt_api_key,
     stt_region,
     riva_server_uri,
-    instance_id
+    instance_id,
+    auth_token = ''
   } = obj;
 
   switch (vendor) {
@@ -119,7 +120,11 @@ const encryptCredential = (obj) => {
       return encrypt(sonioxData);
 
     default:
-      assert(false, `invalid or missing vendor: ${vendor}`);
+      if (vendor.startsWith('custom:')) {
+        const customData = JSON.stringify({auth_token});
+        return encrypt(customData);
+      }
+      else assert(false, `invalid or missing vendor: ${vendor}`);
   }
 };
 
@@ -230,6 +235,10 @@ router.get('/', async(req, res) => {
         const o = JSON.parse(decrypt(credential));
         obj.api_key = obscureKey(o.api_key);
       }
+      else if (obj.vendor.startsWith('custom:')) {
+        const o = JSON.parse(decrypt(credential));
+        return {...obj, ...o};
+      }
       return obj;
     }));
   } catch (err) {
@@ -295,6 +304,10 @@ router.get('/:sid', async(req, res) => {
       const o = JSON.parse(decrypt(credential));
       obj.riva_server_uri = o.riva_server_uri;
     }
+    else if (obj.vendor.startsWith('custom:')) {
+      const o = JSON.parse(decrypt(credential));
+      obj.auth_token = obscureKey(o.auth_token);
+    }
     res.status(200).json(obj);
   } catch (err) {
     sysError(logger, res, err);
@@ -592,7 +605,8 @@ router.get('/:sid/test', async(req, res) => {
           SpeechCredential.sttTestResult(sid, false);
         }
       }
-    } else if (cred.vendor === 'soniox') {
+    }
+    else if (cred.vendor === 'soniox') {
       const {api_key} = credential;
       if (cred.use_for_stt) {
         try {
@@ -607,6 +621,7 @@ router.get('/:sid/test', async(req, res) => {
     }
 
     res.status(200).json(results);
+
   } catch (err) {
     sysError(logger, res, err);
   }