Gmail trigger On Message Received triggers when a draft is created

[LucBerge]

Bug Description

I have a workflow that triggers when a new gmail message is received. The workflow create draft response for some messages (not all).

Once the draft is created, the trigger will fire again.

To Reproduce

1. Create a workflow with a gmail trigger + create draft response to this email
2. Send a message to the email address
3. Whatch the workflow trigger forever

Expected behavior

In the trigger node, when selecting the On Message Received, all messages in draft must be ignored.

Temporary workaround

• Use a filter node right after the trigger and keep data where labelIds do not contains DRAFT
• Add the filter option Search and set the query value to -in:draft

Operating System

Rasbian x64

n8n Version

1.37.3

Node.js Version

docker version, idk

Database

SQLite (default)

Execution mode

main (default)

[Joffcom]

Hey @LucBerge,

Thanks for the report, I have created NODE-1315 for this but I don't believe this is a bug and it is more of a feature request.

When you create a draft email it is creating a new email which the gmail api is returning so technically it is working as expected but I am keeping this open and have created the dev ticket as it does seem like something we should add to protect users that do the same thing and to lower the execution count as on Cloud you could easily use all of your executions very quickly.

[LucBerge]

I don't believe this is a bug and it is more of a feature request.

I agree.

---

@Joffcom where can I track NODE-1315?

---

1. In the props filters, there is field called includeSpamTrash, we should add a prop called includeDraft (default set to false)
   

   n8n/packages/nodes-base/nodes/Google/Gmail/GmailTrigger.node.ts

   Line 100 in 05a569c

   options: [

{
  displayName: 'Include Draft',
  name: 'includeDraft',
  type: 'boolean',
  default: false,
  description: 'Whether to include DRAFT messages in the results',
},

2. In the prepareQuery, we should add a -in:draft in the search parameter if includeDraft set to false.
   

   n8n/packages/nodes-base/nodes/Google/Gmail/GenericFunctions.ts

   Line 350 in 05a569c

   export function prepareQuery(

if (!qs.includeDraft) {
  if (qs.q) {
    qs.q += ` -in:draft`;
  } else {
    qs.q = `-in:draft`;
  }
  delete qs.includeDraft;
}

[Joffcom]

@LucBerge we don't have anywhere to track the issue as it is in the internal system now but once we work on it we will pop open a PR with the issue ref and it will notify on here.

What you have put is pretty much what I was thinking but it needs to go through prioritisation then review, If you wanted to pop in a PR for it I can add it to my PR review list for tomorrow morning.