Admins often recreate monitors with the same endpoint, model, and request settings. A server-side duplicate keeps the stored API key out of the browser, creates a disabled copy for review, and uses stable operation identity to recover ambiguous retries without creating extra rows.
Constraint: Stored monitor API keys must never be returned to the browser
Constraint: Applying a request template must preserve internal duplicate recovery metadata
Rejected: Rebuild the monitor from list data | list responses only contain a masked API key
Rejected: Copy runtime state and history | a duplicate should start as an unverified configuration
Confidence: high
Scope-risk: moderate
Reversibility: clean
Directive: Keep duplicated monitors disabled until an administrator reviews and enables them
Tested: Go unit tests for repository, service, and admin handler; integration-tag compile; go vet; golangci-lint v2.9; frontend Vitest, ESLint, typecheck, production build; Playwright duplicate flow
Not-tested: PostgreSQL container integration locally because Docker is unavailable; CI will execute the database-backed suite
Problem:
Upstream channels can reject monitor probes based on client fingerprint
(e.g. "only Claude Code clients allowed"). The monitor had no way to
customize the outgoing request to bypass such restrictions.
Solution:
Introduce reusable request templates that carry extra_headers plus an
optional body override; monitors reference a template and receive a
snapshot copy on apply. Template edits do NOT auto-propagate — users
must click "apply to associated monitors" to refresh snapshots, so a
bad template edit cannot instantly break all production monitors.
Data model (migration 112):
- channel_monitor_request_templates: id, name, provider, description,
extra_headers jsonb, body_override_mode ('off'|'merge'|'replace'),
body_override jsonb. Unique (provider, name).
- channel_monitors: +template_id (FK, ON DELETE SET NULL), +extra_headers,
+body_override_mode, +body_override (the three runtime snapshot fields).
Checker (channel_monitor_checker.go):
- callProvider + runCheckForModel accept a CheckOptions carrying the
snapshot fields. mergeHeaders applies user headers on top of adapter
defaults (forbidden list: Host / Content-Length / Transfer-Encoding /
Connection / Content-Encoding).
- buildRequestBody:
off -> adapter default body
merge -> shallow-merge over default; per-provider deny list
(model/messages/contents) protects the challenge contract
replace -> user body verbatim
- Replace mode skips challenge validation; instead HTTP 2xx + non-empty
extracted response text = operational, empty = failed.
- 4 new unit tests cover all three modes + replace/empty-response case.
Admin API:
- /admin/channel-monitor-templates CRUD + /:id/apply (overwrite snapshot
on all template_id=id monitors, returns affected count).
- channel_monitor request/response DTOs gain the 4 new fields.
Frontend:
- channelMonitorTemplate.ts API client.
- MonitorAdvancedRequestConfig.vue shared component for headers textarea
+ body mode radio + body JSON editor; used by both template and monitor
forms.
- MonitorTemplateManagerDialog.vue: provider tabs, list/create/edit/
delete/apply, live "associated monitors" count per row.
- MonitorFiltersBar: new 模板管理 button next to 新增监控.
- MonitorFormDialog: collapsible 高级 section with template dropdown
(filtered by form.provider, clears on provider change) + embedded
AdvancedRequestConfig. Picking a template copies its fields into the
form (snapshot semantics mirrored on the client).
- i18n zh/en entries for all new copy.
chore: bump version to 0.1.114.32
Randark