Swift

Wish for Merchants -- Get OAuth2 Access Token for Desktop App

See more OAuth2 Examples

Demonstrates how to get a Wish for Merchants OAuth2 access token from a desktop application or script. Swift

func chilkatTest() {
    var success: Bool = false

    // To further clarify, see OAuth 2.0 Authorization Flow

    // This example is for desktop applicatons (it is not for code that runs on a web server).

    // This is the way to initially obtain the OAuth2 access token.  Afterwards it can be 
    // repeatedly refreshed without user interaction, as shown in this example: Refresh Wish OAuth2 Access Token.

    let oauth2 = CkoOAuth2()!

    // Wish OAuth2 does not allow a localhost callback URI such as "http://localhost:<portNumber>/"
    // For a desktop app, you must provide a script on your web server to redirect to "http://localhost/<portNumber>"

    // Your applicaton must use your own public web server as an intermediate
    // to receive and forward the redirect to localhost.
    // See Using Your Web Server as an Intermediary for OAuth2 Redirect to localhost
    oauth2.appCallbackUrl = "https://yourwebserver.com/OAuth2.php"
    oauth2.listenPort = 3017

    oauth2.authorizationEndpoint = "https://merchant.wish.com/v3/oauth/authorize"
    oauth2.tokenEndpoint = "https://merchant.wish.com/api/v3/oauth/access_token"

    oauth2.uncommonOptions = "EXCHANGE_CODE_FOR_TOKEN_USING_GET"

    // Replace these with actual values.
    oauth2.clientId = "WISH-CLIENT-ID"
    oauth2.clientSecret = "WISH-CLIENT-SECRET"

    oauth2.scope = ""

    // Begin the OAuth2 Authorization code flow.  This returns a URL that should be loaded in a browser.
    var url: String? = oauth2.startAuth()
    if oauth2.lastMethodSuccess != true {
        print("\(oauth2.lastErrorText!)")
        return
    }

    print("url = \(url!)")

    // Launch the default browser on the system and navigate to the url.
    // The LaunchBrowser method was added in Chilkat v10.1.2.
    success = oauth2.launchBrowser(url: url)
    if success == false {
        print("\(oauth2.lastErrorText!)")
        return
    }

    // Wait for the user to approve or deny authorization in the browser.
    var numMsWaited: Int = 0
    while (numMsWaited < 90000) && (oauth2.authFlowState.intValue < 3) {
        oauth2.sleepMs(millisec: 100)
        numMsWaited = numMsWaited + 100
    }

    // If the browser does not respond within the specified time, AuthFlowState will be:
    // 
    // 1: Waiting for Redirect - The OAuth2 background thread is waiting for the browser's redirect request.
    // 2: Waiting for Final Response - The thread is awaiting the final access token response.
    // In either case, cancel the background task initiated by StartAuth.

    if oauth2.authFlowState.intValue < 3 {
        oauth2.cancel()
        print("No response from the browser!")
        return
    }

    // Check AuthFlowState to determine if authorization was granted, denied, or failed:
    // 
    // 3: Success - OAuth2 flow completed, the background thread exited, and the successful response is in AccessTokenResponse.
    // 4: Access Denied - OAuth2 flow completed, the background thread exited, and the error response is in AccessTokenResponse.
    // 5: Failure - OAuth2 flow failed before completion, the background thread exited, and error details are in FailureInfo.

    if oauth2.authFlowState.intValue == 5 {
        print("OAuth2 failed to complete.")
        print("\(oauth2.failureInfo!)")
        return
    }

    if oauth2.authFlowState.intValue == 4 {
        print("OAuth2 authorization was denied.")
        print("\(oauth2.accessTokenResponse!)")
        return
    }

    if oauth2.authFlowState.intValue != 3 {
        print("Unexpected AuthFlowState:\(oauth2.authFlowState.intValue)")
        return
    }

    // Save the full JSON access token response to a file.
    let sbJson = CkoStringBuilder()!
    sbJson.append(value: oauth2.accessTokenResponse)
    sbJson.writeFile(path: "qa_data/tokens/wish.json", charset: "utf-8", emitBom: false)

    // The full JSON received looks like this:
    // {
    //   "message": "",
    //   "code": 0,
    //   "data": {
    //     "access_token": "15af1c191c1243b029bc1660b5c08ce7",
    //     "scopes": [
    //       "epc:read",
    //       "epc:write",
    //       "fbs:read",
    //       "fbs:write",
    //       "fbw:read",
    //       "fbw:write",
    //       "infractions:read",
    //       "infractions:write",
    //       "insurance:read",
    //       "insurance:write",
    //       "loans:read",
    //       "loans:write",
    //       "merchant:read",
    //       "merchant:write",
    //       "notifications:read",
    //       "notifications:write",
    //       "orders:read",
    //       "orders:write",
    //       "payments:read",
    //       "payments:write",
    //       "penalties:read",
    //       "penalties:write",
    //       "product_boost:read",
    //       "product_boost:write",
    //       "products:read",
    //       "products:write",
    //       "ratings:read",
    //       "ratings:write",
    //       "returns:read",
    //       "returns:write",
    //       "tickets:read",
    //       "tickets:write"
    //     ],
    //     "merchant_id": "5eb3f605178f5be2c784fa02",
    //     "expiry_time": "2020-12-17T16:55:09.594+00:00",
    //     "refresh_token": "55a38e44df674a1e859891624b2c4c23"
    //   }
    // }

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

}