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Search Gmail with Query Strings for Invoice Threads — Automation For Freelancers

Day 5 · ~12 min●

get_email from yesterday fetches one message by ID. But you need all invoice emails from a specific client — without scrolling through the inbox manually. Gmail's search syntax handles this server-side.

Like subject:Invoice from:acme@client.com is:unread? I use that in the Gmail search bar all the time.

That exact syntax, passed as a query parameter to GMAIL_FETCH_EMAILS. The filter runs on Gmail's servers — only matching messages cross the network. No loading everything and filtering in Python:

python

result = toolset.execute_action(
    Action.GMAIL_FETCH_EMAILS,
    {"query": "subject:Invoice is:unread", "max_results": 20}
)
messages = result.get("messages", [])

I see both GMAIL_FETCH_EMAILS and GMAIL_SEARCH_EMAILS in the Action enum. Which one do I use for a query?

GMAIL_FETCH_EMAILS with a query parameter. GMAIL_SEARCH_EMAILS is an alias — both accept the same query string. The convention in this track is to use GMAIL_FETCH_EMAILS consistently so the pattern stays uniform across all lessons.

So I can search for subject:Invoice and get back only the invoice threads. Then pass each ID to get_email for the full content.

Invoice monitoring in two function calls. The freelancer who never misses a payment confirmation:

python

def search_emails(query: str) -> list:
    result = toolset.execute_action(
        Action.GMAIL_FETCH_EMAILS,
        {"query": query, "max_results": 50}
    )
    messages = result.get("messages", [])
    print(f"Found {len(messages)} messages matching '{query}'")
    return messages

I have been manually searching for invoice confirmation emails for years. One function call from now on.

The query string is your invoice filter. Every Gmail search operator — from:, to:, subject:, is:unread, after:2026/04/01 — works the same way. Server-side filtering means fast results regardless of inbox size.

Searching Gmail from Python

GMAIL_FETCH_EMAILS accepts a query parameter using the same syntax as the Gmail search bar:

python

result = toolset.execute_action(
    action=Action.GMAIL_FETCH_EMAILS,
    params={'query': 'subject:Invoice', 'max_results': 20}
)
messages = result.get('messages', [])

Useful query patterns

'subject:Invoice' — emails with Invoice in the subject
'from:client@example.com' — emails from a specific sender
'is:unread' — unread emails only
'after:2026/01/01' — emails after a date

The returned list contains message dicts — each with at least a messageId you can pass to GMAIL_FETCH_MESSAGE_BY_MESSAGE_ID for the full content.

Day 5 · ~12 min●

Like subject:Invoice from:acme@client.com is:unread? I use that in the Gmail search bar all the time.

python

result = toolset.execute_action(
    Action.GMAIL_FETCH_EMAILS,
    {"query": "subject:Invoice is:unread", "max_results": 20}
)
messages = result.get("messages", [])

I see both GMAIL_FETCH_EMAILS and GMAIL_SEARCH_EMAILS in the Action enum. Which one do I use for a query?

So I can search for subject:Invoice and get back only the invoice threads. Then pass each ID to get_email for the full content.

Invoice monitoring in two function calls. The freelancer who never misses a payment confirmation:

python

def search_emails(query: str) -> list:
    result = toolset.execute_action(
        Action.GMAIL_FETCH_EMAILS,
        {"query": query, "max_results": 50}
    )
    messages = result.get("messages", [])
    print(f"Found {len(messages)} messages matching '{query}'")
    return messages

I have been manually searching for invoice confirmation emails for years. One function call from now on.

Searching Gmail from Python

GMAIL_FETCH_EMAILS accepts a query parameter using the same syntax as the Gmail search bar:

python

result = toolset.execute_action(
    action=Action.GMAIL_FETCH_EMAILS,
    params={'query': 'subject:Invoice', 'max_results': 20}
)
messages = result.get('messages', [])

Useful query patterns

'subject:Invoice' — emails with Invoice in the subject
'from:client@example.com' — emails from a specific sender
'is:unread' — unread emails only
'after:2026/01/01' — emails after a date

The returned list contains message dicts — each with at least a messageId you can pass to GMAIL_FETCH_MESSAGE_BY_MESSAGE_ID for the full content.

def search_emails(query: str) -> list: result = toolset.execute_action( Action.GMAIL_FETCH_EMAILS, {"query": query, "max_results": 50} ) messages = result.get("messages", []) print(f"Found {len(messages)} messages matching '{query}'") return messages

Searching Gmail from Python

GMAIL_FETCH_EMAILS accepts a query parameter using the same syntax as the Gmail search bar:

python

result = toolset.execute_action(
    action=Action.GMAIL_FETCH_EMAILS,
    params={'query': 'subject:Invoice', 'max_results': 20}
)
messages = result.get('messages', [])

Useful query patterns

'subject:Invoice' — emails with Invoice in the subject

'from:client@example.com' — emails from a specific sender

'is:unread' — unread emails only

'after:2026/01/01' — emails after a date

The returned list contains message dicts — each with at least a messageId you can pass to GMAIL_FETCH_MESSAGE_BY_MESSAGE_ID for the full content.

Searching Gmail from Python

GMAIL_FETCH_EMAILS accepts a query parameter using the same syntax as the Gmail search bar:

python

result = toolset.execute_action(
    action=Action.GMAIL_FETCH_EMAILS,
    params={'query': 'subject:Invoice', 'max_results': 20}
)
messages = result.get('messages', [])

Useful query patterns

'subject:Invoice' — emails with Invoice in the subject

'from:client@example.com' — emails from a specific sender

'is:unread' — unread emails only

'after:2026/01/01' — emails after a date

The returned list contains message dicts — each with at least a messageId you can pass to GMAIL_FETCH_MESSAGE_BY_MESSAGE_ID for the full content.

Searching Gmail from Python

Useful query patterns

Searching Gmail from Python

Useful query patterns

Searching Gmail from Python

Useful query patterns

Sign up to practice

Searching Gmail from Python

Useful query patterns

Sign up to practice