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When you have completed the "Getting Started" steps listed above you can start building your application. There are some things to know about MailUp REST API:
- MailUp REST API use uses Oauth2 and requires a token refresh. You can use the available samples as an example of the expected way to refresh the authorization token
- By properly setting the request header you can set the response format as JSON or XML
- The application keys used in the MailUp Demo Clients shall not be used in a production environment. Obtain your application keys by activating a free developer account.
- Each application is tied to a set of application keys (but not to a specific MailUp account: it can be used with any MailUp account)
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