Gmail adding/deleting flags, cannot read property 'fullcmd'

[delsner]

Unfortunately, I'm getting an error that this._curReq is undefined in Connection.js when I'm adding/deleting flags from my gmail imap:

Error

<= '* 3 FETCH (UID 4 MODSEQ (26109) FLAGS (\\Seen))'
TypeError: Cannot read property 'fullcmd' of undefined
    at ImapPromises.Connection._resUntagged (/Users/delsner/workspace/email-client/emailappserver/node_modules/imap/lib/Connection.js:1403:44)
    at Parser.<anonymous> (/Users/delsner/workspace/email-client/emailappserver/node_modules/imap/lib/Connection.js:190:10)
    at emitOne (events.js:96:13)
    at Parser.emit (events.js:188:7)
    at Parser._resUntagged (/Users/delsner/workspace/email-client/emailappserver/node_modules/imap/lib/Parser.js:271:10)
    at Parser._parse (/Users/delsner/workspace/email-client/emailappserver/node_modules/imap/lib/Parser.js:137:16)
    at Parser._tryread (/Users/delsner/workspace/email-client/emailappserver/node_modules/imap/lib/Parser.js:82:15)
    at TLSSocket.Parser._cbReadable (/Users/delsner/workspace/email-client/emailappserver/node_modules/imap/lib/Parser.js:53:12)
    at emitNone (events.js:86:13)
    at TLSSocket.emit (events.js:185:7)
    at emitReadable_ (_stream_readable.js:438:10)
    at emitReadable (_stream_readable.js:432:7)
    at readableAddChunk (_stream_readable.js:183:13)
    at TLSSocket.Readable.push (_stream_readable.js:130:10)
    at TLSWrap.onread (net.js:542:20)
    at Socket.ondata (_stream_wrap.js:58:20)
    at emitOne (events.js:96:13)
    at Socket.emit (events.js:188:7)
    at readableAddChunk (_stream_readable.js:172:18)
    at Socket.Readable.push (_stream_readable.js:130:10)
    at TCP.onread (net.js:542:20)

Adding/Deleting flags

// config
this.imap['connTimeout'] = 30000;
this.imap['authTimeout'] = 30000;
this.imap['keepAlive'] = false;

// 1st version
this.imap.addFlags(msgId, flags, (err) => {
        this.imap.closeBox(false, () => {
          err ? reject(err) : resolve(msgId);
        });
})

// 2nd version
this.imap.addFlags(msgId, flags, (err) => {
          err ? reject(err) : resolve(msgId);
})

I'm creating a connection on every server request which is then ended (this.imap.end()) before the response is sent to the user. As I have a stateless server-architecture I'm limited to this approach.

I appreciate any help! Thanks.

[ayounas02]

@delsner can you please share how you fixed the issue?

[delsner]

@ayounas02 this was a long time ago and I don't remember how I eventually solved it. But I do know that I ended up writing a Gmail-specific connector on top of the regular IMAP connector. Hope this helps!

[ayounas02]

thanks @delsner for the quick response.