To install and publish your iOS App to Apple Store, you must have an apple developer account, and create API Keys.
Follow this guide for more detail. Or execute steps below:
Step 1: Visit page https://appstoreconnect.apple.com/access/api
Step 2: Select
Account and login with your apple developer account successfully:
Step 3: Click the (+) button to create a new key
- Enter key information. Note that to upload the application to Testflight, the key needs App Manager permission
Step 4: Download key.
- The key can only be downloaded once. So after downloading, please backup it otherwise you will not be able to download it again next time.
The following information needs to be saved to be able to use the Build On Cloud feature:
- Issuer ID
- Key ID
- Key file downloaded in the step above.