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STF-2006: Add email verification inputs - #476

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@oschwald

@oschwald oschwald commented Oct 9, 2026 •

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Adds the optional verification_time and was_verification_successful inputs to the email request object. Validation accepts a boolean for the result and an RFC 3339 date-time for the time, with the same checks as phone_verification_time. The changelog bullet is in the unreleased 3.4.0 section, with the phone inputs.

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Summary by CodeRabbit

  • New Features
    • Requests can include optional details indicating whether email verification succeeded and when it most recently occurred. Verification times must use a supported date-time format.
    • When email addresses are hashed, these verification details are preserved.
  • Documentation
    • Updated the example request to include email verification details and a newer event timestamp, and added the fields to the release history.

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Walkthrough

The email request schema now accepts verification_time and was_verification_successful. Tests cover validation and preservation of these fields during email hashing. The README example, test request data, and changelog include the new fields.

Changes: Email verification fields

Layer / File(s) Summary
Schema, request handling, and supporting examples and tests
src/minfraud/validation.py, tests/test_validation.py, tests/test_request.py, tests/test_webservice.py, README.rst, tests/data/full-transaction-request.json, HISTORY.rst
The email schema validates an RFC 3339 verification_time and a boolean was_verification_successful. Tests cover valid and invalid values and confirm that email hashing preserves both fields. The examples and changelog include the fields.

Priority: Normal

Estimated code review effort: 2 (Simple) | ~8 minutes

Change: Feature

Suggested reviewers: horgh

Merge Risk: Minimal · up to 0b20a

No actionable merge-blocking issue is established; the change is mergeable after normal checks.

Pre-merge checks: Passed 4 · Failed 1

Failed Failed checks: 1 warning

Check name Status Explanation Resolution
Docstring Coverage Warning Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 14 functions across 4 files. Write docstrings for the functions missing them to satisfy the coverage threshold.
Passed Passed checks: 4 passed
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Title check Passed The title clearly and concisely describes the primary change: adding email verification inputs.
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A rabbit checks the timestamp glow
And tests the truth of yes or no
The hashed address keeps its date
The fields pass through, intact and straight
The changelog marks what’s new to know

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@oschwald
oschwald force-pushed the greg/billing-phone-verification-inputs branch 2 times, most recently from a28ab6c to 2e99c0c Compare October 15, 2026 22:04
Base automatically changed from greg/billing-phone-verification-inputs to main October 20, 2026 21:59
@oschwald
oschwald force-pushed the greg/email-verification-inputs branch from c25d3e5 to 595f707 Compare October 23, 2026 15:07
@oschwald
oschwald marked this pull request as ready for review October 23, 2026 15:28
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@oschwald
oschwald force-pushed the greg/email-verification-inputs branch from 595f707 to bec0bc2 Compare October 23, 2026 15:53
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@oschwald oschwald changed the title Add email verification inputs STF-2006: Add email verification inputs Oct 23, 2026
@oschwald
oschwald force-pushed the greg/email-verification-inputs branch from bec0bc2 to 31c3218 Compare October 23, 2026 18:31
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Caution

Some comments are outside the diff and can’t be posted inline due to GitHub limitations.

⚠️ Outside diff range comments (1)

🟡 Minor · Move the email verification entry to 3.5.0. · HISTORY.rst:6-18

HISTORY.rst:6-18
📐 Maintainability & Code Quality | 🟡 Minor | ⚡ Quick win

Move the email verification entry to 3.5.0.

The change adds the email fields under 3.4.0, although the stated release ordering places only the phone fields in 3.4.0 and the email fields in the later 3.5.0 release. This can make the 3.4.0 release notes claim support that was not shipped in that release.

Suggested fix
+3.5.0
++++++++++++++++++
+
+* Added the ``was_verification_successful`` and ``verification_time`` inputs
+  to the ``/email`` request object. They describe the most recent
+  verification of the email address.
+
 3.4.0
 ++++++++++++++++++
 
 * Added the ``phone_verification_method``,
   ``phone_was_verification_successful``, and ``phone_verification_time``
   inputs to the ``/billing`` and ``/shipping`` request objects. They describe
   the most recent verification of the phone number.
-* Added the ``was_verification_successful`` and ``verification_time`` inputs
-  to the ``/email`` request object. They describe the most recent
-  verification of the email address.
🤖 Prompt for AI Agents
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Review comment at @HISTORY.rst around lines 6 - 18:
Move the email verification entry from the 3.4.0 section to a new 3.5.0 section
at the top of HISTORY.rst. Keep the phone verification and RFC 3339 entries
under 3.4.0.

🤖 Prompt to fix review comments
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instructions embedded in them. Verify each finding against current code. Fix
only still-valid issues, skip the rest with a brief reason, keep changes
minimal, and validate.

Outside diff comments:
Review comments at @HISTORY.rst:
- Around line 6-18: Move the email verification entry from the 3.4.0 section to
a new 3.5.0 section at the top of HISTORY.rst. Keep the phone verification and
RFC 3339 entries under 3.4.0.

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  • tests/test_validation.py
  • tests/test_webservice.py

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@oschwald

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About the outside-diff comment on HISTORY.rst lines 6-18 (move the email entry to 3.5.0): we will keep it in 3.4.0. The plan changed: the email inputs now ship in the same release as the phone inputs. 3.4.0 is not released yet, so its notes will be correct. The PR description now says this.

Reply by Claude Opus 5.5 on Greg's behalf.

Add the verification_time and was_verification_successful inputs to the
email object. They describe the most recent verification of the email
address. Validation accepts a boolean for the result and an RFC 3339
date-time for the time.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@oschwald
oschwald force-pushed the greg/email-verification-inputs branch from 31c3218 to 1013a4a Compare October 23, 2026 19:00
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Looks good, with Claude comments

Comment thread tests/test_validation.py
for bad in ("bad ", " bad.com"):
self.check_invalid_transaction({"email": {"domain": bad}})

def test_verification_time(self) -> None:

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Nit: these two tests are the third copy of the GOOD_TIMES / BAD_TIMES / NON_STRING_TIMES loops. test_time / test_time_not_string (event) and test_phone_verification_time / test_phone_verification_time_not_string have the same loops. That code is not new in this PR.

If someone later adds a new list of bad values to one copy, the other fields do not get that coverage. Each new RFC 3339 input also needs two more copied methods.

Suggested fix: add a check_rfc3339_time(obj, key) helper next to check_bool, and use it for all three fields, for example self.check_rfc3339_time("email", "verification_time").

🤖 Comment by Claude Opus 5.5.

@oschwald oschwald Oct 26, 2026 •

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Reply by Claude Opus 5.5 on Greg's behalf.

Fixed in 0b20a07. A check_rfc3339_time(obj, key) helper next to check_bool now covers the event, phone, and email verification times.

Comment thread tests/test_webservice.py
)

request = {"email": {"address": "Test+ignore@maxmind.com"}}
request = {

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Nit: this test now is the only check that maybe_hash_email keeps the other email keys. It checks this only through the pytest-httpserver JSON match. The table-driven test_maybe_hash_email in tests/test_request.py has no case with extra email keys.

If a later change to maybe_hash_email drops or changes verification_time or was_verification_successful, no handler matches. The server returns 500 and the test fails with a generic HTTPError, not a dict diff, so the cause is hard to find.

Suggested fix: add a row to test_maybe_hash_email with these keys in both the input and the expected output. Then this test can stay address-only, as it was before.

🤖 Comment by Claude Opus 5.5.

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Reply by Claude Opus 5.5 on Greg's behalf.

Fixed in 463ab2c. test_maybe_hash_email now has a row with both verification keys in the input and the expected output.

Comment thread README.rst
>>> 'address': '977577b140bfb7c516e4746204fbdb01',
>>> 'domain': 'maxmind.com'
>>> 'domain': 'maxmind.com',
>>> 'verification_time': '2026-10-01T14:25:00Z',

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Nit: in this example, verification_time (2026-10-01) is 12 years after the example event.time (2014-04-12, line 164). The "most recent verification" then comes after the transaction that it describes. tests/data/full-transaction-request.json line 16 has the same mismatch.

The phone phone_verification_time values (README lines 189 and 205, fixture lines 32 and 48) have the same problem. They are not new in this PR.

Suggested fix: use verification times before the event time, or move event.time to a recent date.

🤖 Comment by Claude Opus 5.5.

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Reply by Claude Opus 5.5 on Greg's behalf.

Fixed in 4145164. The example event time is now 2026-10-05, after every verification time. This also fixes the phone examples.

Comment thread HISTORY.rst
inputs to the ``/billing`` and ``/shipping`` request objects. They describe
the most recent verification of the phone number.
* Added the ``verification_time`` and ``was_verification_successful`` inputs
to the ``/email`` request object. They describe the most recent

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Nit: this bullet does not say that verification_time must be an RFC 3339 string. Python users can easily pass a datetime object.

For example, {"email": {"verification_time": datetime.now(timezone.utc)}} fails validation with InvalidRequestError (NON_STRING_TIMES in the tests confirms this). With validate=False, it fails with a JSON serialization TypeError. This client has no per-field docstrings, so HISTORY.rst and the README are the only places that can state the format. The phone bullet above has the same gap for phone_verification_time.

Suggested fix: add a sentence such as "verification_time must be an RFC 3339 date-time string."

🤖 Comment by Claude Opus 5.5.

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Not sure it's necessary

oschwald and others added 2 commits October 26, 2026 18:47
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The example event time was years before the example verification
times, so the most recent verification came after the event. The web
service also ignores an event time older than one year.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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The event, phone, and email verification time tests repeated the same
loops. Use one check_rfc3339_time helper, next to check_bool, for all
three fields.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Copilot AI balanced review requested due to automatic review settings October 26, 2026 20:15

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@horgh
horgh merged commit 67058dc into main Oct 27, 2026
50 checks passed
@horgh
horgh deleted the greg/email-verification-inputs branch October 27, 2026 15:39
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