The FOMO Storage API lets your integration upload and manage binary content — such as ID documents, proof of address, invoices, or other supporting evidence — that other parts of the FOMO API require as attachments.If your integration doesn't involve submitting supporting documents (e.g., you're only working with accounts, balances, or transactions), you likely won't need this module at all.
Several workflows in the API (for example, account holder onboarding, beneficiary verification, or dispute handling) need supporting documents alongside structured data. Rather than embedding file bytes directly into those requests, you upload the file once through this module and get back a file reference (an id). That reference is what you then pass into the other API calls that require an attachment. This keeps your other requests small and lets you reuse or re-check a file's metadata independently of the resource it's attached to.