Creating a template with an image header failed because the code sent
`example.header_url` — Meta only accepts a Resumable-Upload media handle
(`example.header_handle`) at creation time, never a plain URL.
- Resumable Upload: new `uploadResumableMedia` (meta-api) implements the
two-step `/{app_id}/uploads` flow → media handle. Needs META_APP_ID.
- Handle derivation: `ensureImageHeaderHandle` fetches the header image
(uploaded file OR pasted URL) and turns it into a handle before submit.
Wired into both the submit and edit (PATCH) routes with actionable 400s
(missing META_APP_ID, unreachable URL, wrong type, >5 MB). This fixes
BOTH the new upload path and the previously-broken manual-URL path.
- Template builder: add an image file upload (account-scoped chat-media
bucket via uploadAccountMedia) with preview + JPEG/PNG + 5 MB validation,
alongside the URL field.
- Send-time fix: an approved image template now sends the public
header_media_url as `link`; the resumable header_handle is NO LONGER
used as a send media id (it's invalid for sends and would fail).
- META_APP_ID documented as required for image-header templates.
Scope: image headers (the issue). Helper is generic for video/document.
typecheck/lint/build green; 421 tests (10 new).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Closes the last hole left by PR 3 — until now, sendTemplateMessage
only emitted a body component, so templates with image/video/
document headers or URL-with-{{1}} buttons failed at send time
with Meta's "missing component" 400. After this PR, every
APPROVED template that wacrm can submit is also fully sendable.
New helper
----------
src/lib/whatsapp/template-send-builder.ts builds the per-send
Meta components array from a MessageTemplate row + caller-supplied
SendTimeParams. It's a different beast from template-components.ts
(which builds the SUBMISSION shape) because the send-time payload
has a different schema: header type-specific parameter objects,
button components with sub_type + index, body_text without a 2D
example wrapper, etc.
Auto-fills as much as possible from the template:
* static IMAGE/VIDEO/DOCUMENT headers ride along using the row's
header_media_url (or header_handle when present — preferred)
* URL buttons without {{1}} need no per-send payload
* QUICK_REPLY / PHONE_NUMBER buttons need nothing
* COPY_CODE buttons fall back to the template's example so the
most common "static promo code" case Just Works without UI
Variable-bearing fields require per-send values:
* TEXT header with {{1}} → messageParams.headerText
* Body variables → messageParams.body[]
* URL button with {{1}} → messageParams.buttonParams[i]
* COPY_CODE override → messageParams.buttonParams[i]
19 unit tests assert the wire shape per scenario — header types,
URL button at correct index when QR buttons precede it, example
fallback, and the throw-with-specific-message paths.
sendTemplateMessage extension
-----------------------------
src/lib/whatsapp/meta-api.ts gains optional `template` +
`messageParams` args. When `template` is provided, the full
components array is built via the new helper. Legacy `params:
string[]` (body only) path is preserved as-is — old callers
behave identically. When both shapes are present, structured
messageParams.body wins.
Route + UI wiring
-----------------
POST /api/whatsapp/send and /api/whatsapp/broadcast now load the
template row by (user_id, name, language) and pass it through.
Broadcast loads once per request (not per recipient — avoids N+1).
Both accept `template_message_params` / per-recipient
`messageParams` from the client.
src/components/inbox/template-picker.tsx scans the selected
template for variable-bearing fields and renders an input per
need: header text variable, body variables (existing), URL
button suffixes. Per-button preview shows the final URL with
the substitution so the user sees what the recipient will see.
The callback shape changes to `(template, { body, headerText?,
buttonParams? })`; message-thread.tsx updated accordingly.
Out of scope
------------
Broadcast composer doesn't yet collect per-recipient header /
button params — the legacy body-only flow continues to work for
broadcasts. Templates with header / URL-button variables broadcast
fine if every recipient gets the same value via API call shape;
the UI for varying it per recipient lands in a follow-up.
This is the last PR of the Issue #147 overhaul sequence.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
