How do I implement a secure eSignature API in a custom React application?

All answers to this question.

Always prioritize the audit trail. An eSignature is just an image without the metadata behind it to prove who actually clicked the button.

   Answered 2024-05-13 by Jennifer Lopez

• Spot on, Jennifer. The metadata, including IP addresses and timestamps, is what actually makes it a "Digital Signature" rather than just an "Electronic Signature."

     Commented 2024-05-14 by Michael Stevens

Do you think the high monthly API costs of major providers are justifiable for a small startup with low document volume?

   Answered 2024-05-15 by Robert Hughes

• Robert, cost is a valid concern, but you have to weigh it against the cost of a legal challenge. Many providers offer "pay-per-envelope" pricing for startups. If a signature's validity is ever questioned in court, having a third-party audit trail is your best defense. Don't cut corners on the legal validity of your core product.

     Commented 2024-05-17 by Christopher Adams

From my experience building a fintech app in 2023, the overhead of managing your own Public Key Infrastructure (PKI) is rarely worth it. Using a REST API from a major provider handles the cryptographic hashing and audit trails automatically. These services provide "embedded signing" features via iFrames or redirected URLs, which keeps the user on your site. If you go the custom route, you are legally responsible for proving the "intent to sign" and the integrity of the document, which is a massive liability.

   Answered 2024-11-14 by Deborah Miller