Swift Requires Chilkat v11.5.0+

Box: Refresh and Save Rotated OAuth Tokens

See more Box Examples

Refresh the user token saved by the authorization example. Box refresh tokens are single-use and expire after 60 days. Serialize refreshes for a token pair and save the replacement immediately; do not run concurrent refresh jobs.

See the Box API guide for setup and the complete workflow.

Swift

func chilkatTest() {
    var success: Bool = false

    //  Requires Chilkat 11.5.0 or later and a previously unlocked Chilkat bundle.
    //  See Global Unlock Sample.
    //  Guide: Box API Guide.

    success = false

    let tokens = CkoJsonObject()!
    success = tokens.loadFile(path: "qa_data/tokens/box_oauth.json")
    if success != true {
        print("\(tokens.lastErrorText!)")
        return
    }

    let oauth2 = CkoOAuth2()!
    oauth2.tokenEndpoint = "https://api.box.com/oauth2/token"
    oauth2.clientId = "BOX_CLIENT_ID"
    oauth2.clientSecret = "BOX_CLIENT_SECRET"
    oauth2.refreshToken = tokens.string(of: "refresh_token")
    success = oauth2.refreshAccessToken()
    if success != true {
        print("\(oauth2.lastErrorText!)")
        return
    }

    success = tokens.load(json: oauth2.accessTokenResponse)
    if success != true {
        print("\(tokens.lastErrorText!)")
        return
    }

    //  The previous refresh token is now invalid. Preserve this response even if
    //  your normal token-store write fails. Do not retry with the old refresh token.
    success = tokens.writeFile(path: "qa_data/tokens/box_oauth.json")
    if success != true {
        print("\(tokens.lastErrorText!)")
        return
    }

    print("New access and refresh tokens saved. Do not log their values.")

}