Also, in order to copy / paste the API implementation, you should: - Copy https://github.com/supertokens/supertokens-node/blob/7.3/lib/ts/recipe/emailpassword/types.ts#L56 function's code into your override In there, for line number 59, you can replace that with the function body of

emailPasswordImplementation.signInPOST

which can be found here: https://github.com/supertokens/supertokens-node/blob/7.3/lib/ts/recipe/emailpassword/api/implementation.ts#L95 (just copy / paste the whole thing) And for line number 73, you can copy paste https://github.com/supertokens/supertokens-node/blob/7.3/lib/ts/recipe/thirdparty/api/implementation.ts#L52