Swift

Vonage UC Extend Refresh Access Token

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Refreshes the access token for Vonage UC Extend apps. Swift

func chilkatTest() {
    var success: Bool = false

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // See Get Vonage UC Access Token 
    // for sample code showing how to obtain a Vonage access token for desktop apps.

    let jsonToken = CkoJsonObject()!
    success = jsonToken.loadFile(path: "qa_data/tokens/vonage_uc_extend.json")
    if success != true {
        print("Failed to load vonage_uc_extend.json")
        return
    }

    let oauth2 = CkoOAuth2()!

    oauth2.tokenEndpoint = "https://api.vonage.com/token"

    // Replace these with actual values.
    oauth2.clientId = "CLIENT_ID"
    oauth2.clientSecret = "CLIENT_SECRET"

    // Get the "refresh_token"
    oauth2.refreshToken = jsonToken.string(of: "refresh_token")

    // Send the HTTP POST to refresh the access token..
    oauth2.verboseLogging = true
    success = oauth2.refreshAccessToken()
    if success != true {
        print("\(oauth2.lastErrorText!)")
        return
    }

    // Load the access token response into the json object 
    jsonToken.load(json: oauth2.accessTokenResponse)

    // If an "expires_on" member does not exist, then add the JSON member by
    // getting the current system date/time and adding the "expires_in" seconds.
    // This way we'll know when the token expires.
    if jsonToken.hasMember(jsonPath: "expires_on") == false {
        let dtExpire = CkoDateTime()!
        dtExpire.setFromCurrentSystemTime()
        dtExpire.addSeconds(numSeconds: jsonToken.int(of: "expires_in").intValue)
        jsonToken.appendString(name: "expires_on", value: dtExpire.get(asUnixTimeStr: false))
    }

    // Save the new JSON access token response to a file.
    // The access + refresh tokens contained in this JSON will be needed for the next refresh.
    let sbJson = CkoStringBuilder()!
    jsonToken.emitCompact = false
    jsonToken.emitSb(sb: sbJson)
    sbJson.writeFile(path: "qa_data/tokens/vonage_uc_extend.json", charset: "utf-8", emitBom: false)

    print("OAuth2 authorization granted!")
    print("New Access Token = \(oauth2.accessToken!)")

}