(Swift 3,4,5...) Refresh WiX Access Token

Request a new access token each time you call a WiX API. Use the refresh token together with your secret key, to request refresh tokens

For more information, see https://dev.wix.com/api/rest/authorization/oauth-2/refresh-an-access-token

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let http = CkoHttp()!

    // Implements the following CURL command:

    // curl -X POST \
    //   https://www.wix.com/oauth/access \
    //   -H 'Content-Type: application/json' \
    //   -d '{
    //     "grant_type": "refresh_token",
    //     "client_id": <CLIENT_ID>,
    //     "client_secret": <CLIENT_SECRET>,
    //     "refresh_token": <REFRESH_TOKEN>
    // }'

    // It is assumed we previously obtained an OAuth2 access token.
    // This example loads the JSON access token file 
    // saved by this example: Get WiX OAuth2 Access Token

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

    // Get the "refresh_token"
    var refreshToken: String? = jsonToken.string(of: "refresh_token")

    // The following JSON is sent in the request body.

    // {
    //   "grant_type": "refresh_token",
    //   "client_id": <APP_ID>,
    //   "client_secret": <APP_SECRET>,
    //   "refresh_token": <REFRESH_TOKEN>
    // }

    let json = CkoJsonObject()!
    json.update("grant_type", value: "refresh_token")
    json.update("client_id", value: "CLIENT_ID")
    json.update("client_secret", value: "CLIENT_SECRET")
    json.update("refresh_token", value: refreshToken)

    http.setRequestHeader("Content-Type", value: "application/json")

    var resp: CkoHttpResponse? = http.postJson3("https://www.wix.com/oauth/access", contentType: "application/json", json: json)
    if http.lastMethodSuccess == false {
        print("\(http.lastErrorText!)")
        return
    }

    let sbResponseBody = CkoStringBuilder()!
    resp!.getBodySb(sbResponseBody)
    let jResp = CkoJsonObject()!
    jResp.loadSb(sbResponseBody)
    jResp.emitCompact = false

    print("Response Body:")
    print("\(jResp.emit()!)")

    var respStatusCode: Int = resp!.statusCode.intValue
    print("Response Status Code = \(respStatusCode)")
    if respStatusCode >= 400 {
        print("Response Header:")
        print("\(resp!.header!)")
        print("Failed.")
        resp = nil
        return
    }

    resp = nil

    // Sample JSON response:

    // {
    //   "refresh_token": "OAUTH2.eyJraWQ ... vnB4cQ",
    //   "access_token": "OAUTH2.eyJra ... la18lrw"
    // }

    var refresh_token: String? = jResp.string(of: "refresh_token")
    var access_token: String? = jResp.string(of: "access_token")

    // Save the new JSON access token response to a file.
    sbResponseBody.writeFile("qa_data/tokens/wix.json", charset: "utf-8", emitBom: false)

}