Duh

Signed-off-by: Connor Avery <[email protected]>

Author: connoravo-nhs

packages/getMyPrescriptions/src/extractNHSNumber.ts

@@ -11,13 +11,16 @@ export class NHSNumberValidationError extends Error {
 
 export function extractNHSNumberFromHeaders(headers: EventHeaders): string {
   if (headers["nhs-login-identity-proofing-level"]) {
+    // Proxygen spec will include proofing level header, whereas non-proxygen API will not
     return validateNHSNumber(headers["nhsd-nhslogin-user"]!)
   } else {
     return extractNHSNumber(headers["nhsd-nhslogin-user"])
   }
 }
 
 export function extractNHSNumber(nhsloginUser: string | undefined): string {
+  // This function is only relevant for non-proxygen API which prepends proofing level
+  // to the front of the nhs number ie. P9:1234567890
   if (nhsloginUser === undefined || nhsloginUser === null) {
     throw new NHSNumberValidationError("nhsdloginUser not passed in")
   }

packages/getMyPrescriptions/src/types.ts

@@ -0,0 +1 @@
+export type EventHeaders = Record<string, string | undefined>