JWSAppTransaction
App transaction information signed by the App Store, in JSON Web Signature (JWS) Compact Serialization format.
Declaration
string JWSAppTransactionDiscussion
The JWSAppTransaction type is a string of three Base64URL-encoded components separated by a period. The string contains the JWS Compact Serialization of the transaction information, signed by the App Store according to the JSON Web Signature (JWS) IETF RFC 7515 specification.
The three components of the string are a header, a payload, and a signature, in that order.
To read the transaction information, Base64URL-decode the payload. Use a JWSAppTransactionDecodedPayload object to read the payload information.
To read the header, decode it and use a JWSDecodedHeader object to access the information. Use the information in the header to verify the signature.
Use App Store Server Library functions
To verify a JWSAppTransaction on your server, consider implementing the verification using the App Store Server Library function verifyAndDecodeAppTransaction. The library provides this function in each language the library supports. For more information, see Simplifying your implementation by using the App Store Server Library.