feat(grid-visualizer): add SWIFT_ACCOUNT to accountTypeSpecs

[shreyav]

Summary

SWIFT_ACCOUNT exists everywhere else in this repo — the OpenAPI schemas (SwiftAccountInfoBase.yaml, ExternalAccountType.yaml, ExternalAccountInfoOneOf.yaml, PaymentInstructions.yaml), the Mintlify docs (mintlify/snippets/external-accounts.mdx has a SWIFT tab), the grid-api skill reference (.claude/skills/grid-api/references/account-types.md), and the generated bankAccountFields.generated.ts in both components/grid-wallet-demo and components/grid-wallet-prod.

It was missing from exactly one place: components/grid-visualizer/src/data/account-types.ts. This PR adds it.

This supersedes the SWIFT portion of #478 and #531, both of which are being closed as largely superseded — the rest of their content already landed on main via later syncs. This one entry is the genuine remainder.

Fields

Derived from openapi/components/schemas/common/SwiftAccountInfoBase.yaml rather than from the old PR descriptions:

Field	Schema status
country	required (ISO 3166-1 alpha-2)
swiftCode	required
bankName	required
accountNumber	optional — "Required for most corridors"
iban	optional — "Required for IBAN-only corridors (e.g. BR, GB)"

accountNumber and iban are conditionally exclusive. Both are listed with disambiguating descriptions, matching how the file already handles the same situation for PKR_ACCOUNT, EGP_ACCOUNT, SLV_ACCOUNT and COP_ACCOUNT.

beneficiaryRequired: true — every fiat bank account type in the file sets this, and the SWIFT example in mintlify/snippets/external-accounts.mdx includes a beneficiary block.

Example values match the Nigerian GTBank example already in the Mintlify SWIFT tab (NG / GTBINGLA / Guaranty Trust Bank / 1234567890) rather than inventing new ones. The iban example is the schema's own example.

⚠️ This entry is currently unreachable in the UI — follow-up required

I investigated how accountTypeSpecs is consumed. It is read in exactly one file, components/grid-visualizer/src/lib/code-generator.ts, always as a lookup keyed by CurrencySelection.accountType:

• buildAccountInfoBody() → accountTypeSpecs[sel.accountType]
• generateSteps() → accountTypeSpecs[destination.accountType] / accountTypeSpecs[source.accountType]

Every CurrencySelection is constructed from one of only two data sources:

• data/currencies.ts — FiatCurrency.accountType, a single string per currency (built in CurrencyPicker.lookupSelection() and hooks/useFlowBuilder.ts)
• data/crypto.ts — CryptoAsset.accountTypes[].type

SWIFT_ACCOUNT is not a currency; it's a cross-currency correspondent-banking account type, so it appears in neither. Nothing in the visualizer can currently produce accountType === 'SWIFT_ACCOUNT', so this spec is dead data until a follow-up lands.

I am deliberately not fixing that here: two other PRs are in flight against components/grid-visualizer/src/data/currencies.ts and touching it would create conflicts. The account-types.ts entry is correct and needed either way, so it ships now.

What the follow-up needs to do: allow a fiat currency to offer more than one account type, and let the user choose. Concretely:

1. In data/currencies.ts, widen FiatCurrency beyond the single accountType: string — e.g. add an optional alternateAccountTypes?: { type: string; label: string }[] — and add SWIFT_ACCOUNT as an alternate on the currencies where an international wire is a real option.
2. In components/InputCard/InputCard.tsx, add a fiat equivalent of the existing getNetworkOptions() / NetworkDropdown pattern (which already does exactly this for crypto assets with more than one accountTypes entry), so the selected account type flows into CurrencySelection.accountType.
3. Thread the choice through CurrencyPicker.lookupSelection() and hooks/useFlowBuilder.ts, both of which currently hard-assign accountType: fiat.accountType.

Once that lands, the spec added here is picked up by code-generator.ts with no further change.

Testing / what I could not verify

• ✅ Typechecked the changed file standalone: npx tsc --noEmit --strict --ignoreConfig --ignoreDeprecations 6.0 --target es2020 --moduleResolution bundler --module esnext src/data/account-types.ts — clean. The file is pure TypeScript with no imports, so this is a complete check of it.
• ❌ No full build or dev-server run.npm ci in components/grid-visualizer fails because @central-icons-react requires a CENTRAL_LICENSE_KEY env var that is not available in this environment. I have not run the app, the project-wide tsc, ESLint, or any visual check.
• ❌ Consequently the rendered output was not verified — though as described above, there is currently no UI path that would render it.

There are no tests covering account-types.ts in this component.

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Project	Deployment	Actions	Updated (UTC)
grid-flow-builder	Ready	Preview	Jul 30, 2026 8:20pm

1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
grid-wallet-demo	Ignored		Jul 30, 2026 8:20pm

[greptile-apps]

Greptile Summary

Adds the missing SWIFT account metadata to the Grid visualizer.

• Defines the required country, SWIFT code, and bank name fields.
• Includes the corridor-dependent account number and IBAN examples.
• Marks beneficiary information as required, consistently with other fiat bank account types.

Confidence Score: 5/5

The PR appears safe to merge, with no actionable defect in the added static account-type metadata.

The new entry matches the repository’s SWIFT field definitions, and its currently unreachable state prevents it from altering generated visualizer output.

Important Files Changed

Filename	Overview
components/grid-visualizer/src/data/account-types.ts	Adds a schema-aligned SWIFT_ACCOUNT specification; it remains unreachable until the visualizer supports selecting alternate fiat account types.

_{Reviews (1): Last reviewed commit: "feat(grid-visualizer): add SWIFT_ACCOUNT..." | Re-trigger Greptile}