Better logging with winston

src/PromiseRouter.js

@@ -6,6 +6,7 @@
 // components that external developers may be modifying.
 
 import express from 'express';
+import log from './logger';
 
 export default class PromiseRouter {
   // Each entry should be an object with:
@@ -146,9 +147,6 @@ export default class PromiseRouter {
   }
 }
 
-// Global flag. Set this to true to log every request and response.
-PromiseRouter.verbose = process.env.VERBOSE || false;
-
 // A helper function to make an express handler out of a a promise
 // handler.
 // Express handlers should never throw; if a promise handler throws we
@@ -156,18 +154,14 @@ PromiseRouter.verbose = process.env.VERBOSE || false;
 function makeExpressHandler(promiseHandler) {
   return function(req, res, next) {
     try {
-      if (PromiseRouter.verbose) {
-        console.log(req.method, req.originalUrl, req.headers,
-                    JSON.stringify(req.body, null, 2));
-      }
+      log.verbose(req.method, req.originalUrl, req.headers,
+                  JSON.stringify(req.body, null, 2));
       promiseHandler(req).then((result) => {
         if (!result.response && !result.location && !result.text) {
-          console.log('BUG: the handler did not include a "response" or a "location" field');
+          log.error('the handler did not include a "response" or a "location" field');
           throw 'control should not get here';
         }
-        if (PromiseRouter.verbose) {
-          console.log('response:', JSON.stringify(result, null, 2));
-        }
+        log.verbose(JSON.stringify(result, null, 2));
 
         var status = result.status || 200;
         res.status(status);
@@ -186,15 +180,11 @@ function makeExpressHandler(promiseHandler) {
         }
         res.json(result.response);
       }, (e) => {
-        if (PromiseRouter.verbose) {
-          console.log('error:', e);
-        }
+        log.verbose('error:', e);
         next(e);
       });
     } catch (e) {
-      if (PromiseRouter.verbose) {
-        console.log('error:', e);
-      }
+      log.verbose('exception:', e);
       next(e);
     }
   }