fix(http): allow passing maximumDepth to prevent big object being stringified

lib/winston/transports/http.js

@@ -11,7 +11,7 @@ const http = require('http');
 const https = require('https');
 const { Stream } = require('readable-stream');
 const TransportStream = require('winston-transport');
-const jsonStringify = require('safe-stable-stringify');
+const { configure } = require('safe-stable-stringify');
 
 /**
  * Transport for outputting to a json-rpc server.
@@ -35,6 +35,7 @@ module.exports = class Http extends TransportStream {
     this.port = options.port;
     this.auth = options.auth;
     this.path = options.path || '';
+    this.maximumDepth = options.maximumDepth;
     this.agent = options.agent;
     this.headers = options.headers || {};
     this.headers['content-type'] = 'application/json';
@@ -253,6 +254,9 @@ module.exports = class Http extends TransportStream {
     req.on('response', res => (
       res.on('end', () => callback(null, res)).resume()
     ));
+    const jsonStringify = configure({
+      ...(this.maximumDepth && { maximumDepth: this.maximumDepth })
+    });
     req.end(Buffer.from(jsonStringify(options, this.options.replacer), 'utf8'));
   }
 };

lib/winston/transports/index.d.ts

@@ -65,12 +65,14 @@ declare namespace winston {
     batchInterval?: number;
     batchCount?: number;
     replacer?: (key: string, value: any) => any;
+    maximumDepth?: number;
   }
 
   interface HttpTransportInstance extends Transport {
     name: string;
     ssl: boolean;
     host: string;
+    maximumDepth: number;
     port: number;
     auth?: { username?: string | undefined, password?: string | undefined, bearer?: string | undefined };
     path: string;

test/unit/winston/transports/http.test.js

@@ -163,5 +163,20 @@ describe('Http({ host, port, path })', function () {
 
       httpTransport.log(circularLog, assumeError);
     });
+
+    it('should be able to handle options with circular structure when passing maximumDepth', function (done) {
+      const httpTransport = new Http({
+        host: host,
+        maximumDepth: 5,
+        port: server.address().port,
+        path: 'log'
+      })
+        .on('error', assumeError)
+        .on('logged', function () {
+          onLogged(context, done);
+        });
+
+      httpTransport.log(circularLog, assumeError);
+    });
   });
 });