Several decisions in here look like oversights until you know the reasoning: the curated model subset with everything else in `extra`, the still-generic `chart`, not retrying `POST`, the deliberate divergences from the official PHP SDK. That reasoning was spread across code comments and commit messages, where it is easy to miss and easy to "fix". GOALS.md states: - What the crate is for: complete coverage, and not quietly losing data, truncating results, or succeeding when it did not. - Seven goals, each tied to a decision visible in the code, so the rationale survives the next refactor. - Non-goals, including no sync API, no caching or ORM layer, no modelling of every field, and no retrying of non-idempotent requests. - Publication posture: on crates.io, pre-1.0, no stability promise, pin an exact version. MSRV may rise with dependencies. - A roadmap ordering the COVERAGE.md gaps by value over effort, starting with multipart uploads, which is the only thing blocking `create_document`. - Open questions, left open rather than papered over: whether auth routes belong here at all given they are a different auth model, whether per-chart types earn their keep, streaming for large exports, and the untested `Error::PaginationLimit`. README, COVERAGE.md, and CLAUDE.md link to it. No changelog entry: this adds no behaviour, per the rule in CLAUDE.md. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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API coverage
What this crate wraps of the Invoice Ninja v5 API, and what it doesn't.
Full coverage is a stated goal, so the gaps below are a to-do list rather
than a permanent boundary — GOALS.md puts them in rough
priority order.
Checked against routes/api.php on the v5-stable branch of the
invoiceninja repo, which
declares 34 Route::resource groups and 274 explicit route declarations
(272 single-verb, plus two Route::match pairs registering two verbs each).
Note on sources: Invoice Ninja's published
openapi/api-docs.yamlis reliable for schemas but incomplete for routes — it documents/{id}and action paths only for clients, locations, and tags. Useroutes/api.phpand the controllers when checking whether an endpoint exists or what it returns.
All 34 Route::resource groups are now wrapped, plus users (which is
not a resource group). 265 methods in total.
Resources with full CRUD + bulk
30 resources, each with list_*, list_all_*, get_*, create_*,
update_*, delete_*, and bulk_*:
| Resource | Path | Model |
|---|---|---|
| Clients | /clients |
Client (+ ClientContact) |
| Invoices | /invoices |
Invoice (+ InvoiceItem) |
| Quotes | /quotes |
Quote (alias of Invoice) |
| Credits | /credits |
Credit (alias of Invoice) |
| Payments | /payments |
Payment (+ PaymentInvoice) |
| Products | /products |
Product |
| Purchase Orders | /purchase_orders |
PurchaseOrder |
| Recurring Invoices | /recurring_invoices |
RecurringInvoice |
| Recurring Quotes | /recurring_quotes |
RecurringQuote (alias of RecurringInvoice) |
| Recurring Expenses | /recurring_expenses |
RecurringExpense |
| Subscriptions | /subscriptions |
Subscription |
| Projects | /projects |
Project |
| Tasks | /tasks |
Task |
| Task Statuses | /task_statuses |
TaskStatus |
| Expenses | /expenses |
Expense |
| Expense Categories | /expense_categories |
ExpenseCategory |
| Vendors | /vendors |
Vendor (+ VendorContact) |
| Bank Transactions | /bank_transactions |
BankTransaction |
| Tax Rates | /tax_rates |
TaxRate |
| Payment Terms | /payment_terms |
PaymentTerm |
| Webhooks | /webhooks |
Webhook |
| Bank Integrations | /bank_integrations |
BankIntegration |
| Bank Transaction Rules | /bank_transaction_rules |
BankTransactionRule |
| Company Gateways | /company_gateways |
CompanyGateway |
| Designs | /designs |
Design |
| Group Settings | /group_settings |
GroupSetting |
| Locations | /locations |
Location |
| Tags | /tags |
Tag |
| Task Schedulers | /task_schedulers |
TaskScheduler |
| Tokens | /tokens |
CompanyToken |
bulk_* accepts any action the endpoint supports; archive, restore, and
delete work on all of them. An ids list matching nothing returns an empty
Vec, not an error.
Resources without a bulk route
Three Route::resource groups have no /bulk route, so they get the six
CRUD methods but no bulk_* (which would just 405). These use
crud_methods! rather than resource_methods!:
| Resource | Path | Model |
|---|---|---|
| Client Gateway Tokens | /client_gateway_tokens |
ClientGatewayToken |
| Companies | /companies |
Company |
| System Logs | /system_logs |
SystemLog |
Company and GroupSetting keep their settings blob as
serde_json::Value: CompanySettings is the largest object in the API, and
Company itself returns over a hundred fields, so only the structural ones
are modeled and extra carries the feature toggles.
Users
/users is not a Route::resource and has no DELETE /users/{id}, so it is
hand-written:
| Endpoint | Method | Needs password? |
|---|---|---|
GET /users |
list_users, list_all_users |
no |
GET /users/{id} |
get_user |
yes |
POST /users |
create_user |
yes |
PUT /users/{id} |
update_user |
yes |
DELETE /users/{id}/detach_from_company |
detach_user_from_company |
yes |
POST /users/bulk |
bulk_users |
yes |
"Needs password" means the route sits behind the API's password_protected
middleware and requires an X-API-PASSWORD header on top of a valid token.
Supply it with InvoiceNinjaClient::with_api_password, which also unlocks
client and vendor merge, and client/company/user purge. Note that even
reading a single user is gated this way.
Entity actions
GET /{resource}/{id}/{action} exists for only four resources — invoices,
quotes, credits, and purchase orders. Each gets {singular}_action(id, action)
and download_{singular}(id).
Actions returning the entity: auto_bill, clone_to_invoice,
clone_to_quote, mark_paid, mark_sent, archive, restore, delete.
Actions that do not return the entity, and so are not usable through
*_action:
| Action | Returns | Use instead |
|---|---|---|
download |
application/pdf stream |
download_invoice(id) etc. |
convert_to_purchase_order |
a purchase order | convert_invoice_to_purchase_order(id) |
cancel, history, delivery_note |
empty body (upstream quirk) | — not wrapped |
Each of the four also gets download_{plural}(&ids) — the bulk download
action, which streams one merged PDF. It can't go through bulk_* for the
same reason: the response isn't JSON.
Convenience wrappers: mark_invoice_sent and mark_invoice_paid.
Other wrapped endpoints
| Endpoint | Method |
|---|---|
GET /documents, /documents/{id} |
list_documents, list_all_documents, get_document |
PUT/DELETE /documents/{id} |
update_document, delete_document |
GET /documents/{id}/download |
download_document → bytes |
POST /documents/bulk |
bulk_documents |
POST /reports/{name} |
report(name, body) → raw bytes (CSV for most) |
POST /charts/{name} |
chart(name, body) → caller-chosen T |
POST /search |
search(body) |
GET /statics |
statics() |
POST /emails |
send_email(body) |
POST /payments/refund |
refund_payment(body) |
GET /ping |
ping() |
GET /health_check |
health_check() |
report and chart take the name as a string, so all 32 report and 11 chart
endpoints are reachable without a per-endpoint method:
- Reports —
activities,ar_detail_report,ar_summary_report,client_balance_report,client_contacts,client_locations,clients,client_sales_report,contacts,credits,documents,expenses,invoice_items,invoices,locations,payments,preview,products,product_sales,profitloss,projects,purchase_order_items,purchase_orders,quote_items,quotes,recurring_invoice_items,recurring_invoices,tasks,tax_period_report,tax_summary_report,user_sales_report,vendors - Charts —
totals,totals_v2,chart_summary,chart_summary_v2,calculated_fields,analytics_summary,analytics_totals,cashflow_forecast,client_payment_analytics,project_analytics,project_burnup
Three of these take a further path segment rather than carrying the id in the
body: charts/project_analytics/{project}, charts/project_burnup/{project},
and reports/preview/{hash}. The name argument is interpolated as-is, so pass
the whole tail — chart("project_burnup/<id>", &body).
Large report exports are queued and emailed rather than returned inline; in that case the body is a short JSON message instead of CSV.
Not covered
Blocked on a dependency change
Multipart uploads — PUT /{resource}/{id}/upload exists for clients,
companies, credits, expenses, group_settings, invoices, payments, products,
projects, purchase_orders, quotes, recurring_expenses, recurring_invoices,
recurring_quotes, tasks, and vendors. These need reqwest's multipart
feature, which isn't currently enabled. This is the main reason Document
has no create_document.
Resource groups not wrapped
None — all 34 Route::resource groups are covered.
Adding a new one is mechanical: add a model under src/models/, re-export it
from src/models/mod.rs, and add a resource_methods! invocation in
src/client.rs (or crud_methods! if the resource has no /bulk route —
check routes/api.php).
Password-protected endpoints still unwrapped
with_api_password makes these reachable, but the methods themselves aren't
written yet:
POST /clients/{id}/purgePOST /clients/{id}/{other}/mergePOST /vendors/{id}/{other}/mergePOST /companies/purge/{company},POST /companies/purge_save_settings/{company}POST /users/{id}/invite,POST /users/{id}/purge,GET /users/create
Individual endpoints not wrapped
- Client extras —
updateTaxData,show_settings,peppol_discovery,check_vat,vat_status,documents - Bank integration extras —
refresh_accounts,remove_account/{id},get_transactions/{id}, andPOST /bank_transactions/match - Company gateway extras —
test,clone,import_customers - Company extras —
GET /companies/{id}/logo,POST /companies/{id}/default,updateOriginTaxData,POST /companies/current - Design extras —
POST /designs/set/default - Client gateway token extras —
setAsDefault - Task extras —
POST /tasks/sort - Webhook extras —
POST /webhooks/{id}/retry - Subscription extras —
GET /subscriptions/steps,POST /subscriptions/steps/check - User extras (not password-protected, unlike the rest of
/users) —POST /users/{id}/disconnect_mailer,POST /users/{id}/disconnect_oauth,POST /user/{id}/reconfirm - Preview —
POST /preview,POST /preview/purchase_order, live preview - Activities —
GET /activities,POST /activities/entity,POST /activities/notes,download_entity/{activity} - Email history —
POST /emails/clientHistory/{client},POST /emails/entityHistory - Auth —
/login,/logout,/refresh,/connected_account, passkey routes - Import/export —
/import,/preimport,/import_json,/export,/migration/start - Invoice extras —
delivery_note,payment_schedule,update_reminders - Public invitation-key downloads —
GET /{entity}/{invitation_key}/downloadforinvoice,quote,credit, andpurchase_order(note the singular path segment), plus the matching e-invoice variantsdownload_e_invoice,download_e_quote,download_e_credit,download_e_purchase_order. These are invitation-key based and take no auth token, so they don't fit the client's authenticated request path. - Integrations — Stripe, QuickBooks, Apple in-app purchase, PostMark,
einvoice (17 routes), calendar_connection, self-update, templates, hooks,
Yodlee (
/yodlee/*), Nordigen (/nordigen/institutions) - Misc —
/company_users,/company_ledger,/client_statement,/claim_license,/check_license,/check_subdomain,/one_time_token,/last_error,/support/messages/send,/verify/*,/accounts/{id},/feedback,/filters/{entity},/scheduler,/mailer/check,/smtp/check,/password_timeout,/refresh_react,/webcron,/token_hash_router,/reactivate_email/{bounce_id},/protected_download/{hash},/confirm_purchase,/exports/preview/{hash},/templates/preview/{hash}
Typed response gaps
statics, search, and health_check return concrete types (Statics,
SearchResults, HealthCheck). Each keeps the crate's extra convention,
so fields they don't model stay reachable rather than being dropped, and
each has a generic counterpart — statics_as, search_as,
health_check_as — for pinning a shape they leave untyped.
Two remain generic on purpose:
chart— the eleven chart endpoints share no common response shape (totals_v2returns per-currency maps,cashflow_forecasta date series,calculated_fieldsscalars), so there is nothing to narrow to.send_email— the endpoint serves invoices, quotes, credits, and purchase orders, and answers with whichever entity was emailed. Thedataenvelope is unwrapped, soTis the entity itself.
Within the typed models, a few fields are deliberately left as
serde_json::Value: Statics::gateways, Statics::templates,
Statics::bulk_updates, HealthCheck::extensions, and
HealthCheck::queue_data. These are nested configuration blobs rather than
uniform lookup rows, and the same reasoning applies as for
Company::settings — a wrong concrete type is a hard decode error, whereas
Value is lossless.
Compared with the official PHP SDK
invoiceninja/sdk-php is the
first-party wrapper. It's worth checking against, but it is deliberately
thinner than this crate: every one of its endpoint classes is just a URI on
top of a shared BaseEntity offering all, get, create, update,
bulk, archive, delete, restore, and download. Only Companies and
Statics add anything of their own.
It covers nothing we don't. The five resources it used to have on us —
users, companies, group_settings, bank_integrations,
client_gateway_tokens — are all wrapped now.
We cover a lot it doesn't: payment_terms, task_statuses,
recurring_quotes, recurring_expenses, bank_transaction_rules,
company_gateways, designs, locations, tags, task_schedulers,
tokens, system_logs, documents, per-entity actions (mark_sent,
mark_paid, clone_to_*, …), per-entity PDF download, reports, charts,
search, send_email, refund_payment, ping, health_check, automatic
pagination (list_all_*), and X-API-PASSWORD support for the
password-protected routes.
Deliberate differences in behaviour:
| PHP SDK | This crate | |
|---|---|---|
| Request bodies | form_params (urlencoded) |
JSON |
| Base URL | host only; appends /api/v1 itself |
full API root, or hosted() |
| Single-entity delete | none — delete() is bulk |
delete_*(id) via HTTP DELETE, plus bulk_* |
| Validation errors | surfaces only the first message | whole per-field errors map on Error::Api |
| List filters | arbitrary array | typed setters plus ListParams::param |
The urlencoded-vs-JSON difference is the one that matters: form encoding
bracket-encodes nested structures, so a payload like an invoice's
line_items array of objects is far cleaner as JSON. Both are accepted by
the API.
Two things in the PHP SDK are not worth copying: it sends
stream: false in download payloads, but no controller reads a stream
input, and its BaseEntity::download is available on every resource even
though only PDF-rendering entities support the action.