Problem with JWT signing: "The provided key did not have the expected PEM headers/footers" #114
Description
Hello thank you so much for creating this library. I have been working on a problem where I was not able to have success with signing my JWT. The following is my code:
let teamID = some value
let keyID = some value
let authToken = """
-----BEGIN PRIVATE KEY-----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-----END PRIVATE KEY-----
"""
func generateToken() {
let myHeader = Header(kid: keyID)
let urlString = "https://www.googleapis.com/oauth2/v4/token"
let claims = JWTClaims(iss: teamID, iat: Date(), exp: Date() + 3.0, scope: "devstorage.read_write", aud: urlString)
var jwt = SwiftJWT.JWT(header: myHeader, claims: claims)
guard let tokenData = authToken.data(using: .utf8)?.base64EncodedData() else {
return
}
var jwtSigner = JWTSigner.rs256(privateKey: tokenData)
do {
let token = try jwt.sign(using: jwtSigner)
print(jwt)
UserDefaults.standard.setValue(token, forKey: "JWT")
} catch {
print(error.localizedDescription)
}
}
}
struct JWTClaims: Claims {
let iss: String
let iat: Date?
let exp: Date?
let scope: String
//let aud: URL
let aud: String
}
If I po to the debugger try jwt.sign(using: jwtSigner) it gives me the error "The provided key did not have the expected PEM headers/footers".
What am I missing here? I have checked my header and payload seem to be in the correct format.