The ID of the bill you want to update.

Bill recipient's email address

The resource token for the billId you want to update. You need to retrieve this token from the bill object itself, using the merchant facade (see section Retrieve a bill).

Must be set to application/json for requests to the BitPay API

Must be set to 2.0.0 for requests to the BitPay API

The hexadecimal public key generated from the client private key. This header is optional for this endpoint when using the public facade, and required when using a merchant facade token.

The ECDSA signature of the full request URL concatenated with the request body, signed with your private key. This header is optional for this endpoint when using the public facade, and required when using a merchant facade token.