Visual FoxPro

Refresh Wish for Merchants OAuth2 Access Token

See more OAuth2 Examples

Demonstrates how to refresh a Wish OAuth2 access token.

Note: This example requires Chilkat v9.5.0.85.

Visual FoxPro

LOCAL lnSuccess
LOCAL loJsonToken
LOCAL loOauth2
LOCAL loSbJson

lnSuccess = 0

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

*  See Get Wish OAuth2 Access Token 
*  for sample code showing how to obtain a Wish access token for desktop apps.

*  This example assumes we previously obtained an OAuth2 access token for Wish.

loJsonToken = CreateObject('Chilkat.JsonObject')
lnSuccess = loJsonToken.LoadFile("qa_data/tokens/wish.json")
IF (lnSuccess <> 1) THEN
    ? "Failed to load wish.json"
    RELEASE loJsonToken
    CANCEL
ENDIF

*  The access token JSON looks something 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"
*    }
*  }

loOauth2 = CreateObject('Chilkat.OAuth2')

*  Note: In most OAuth2 implementations, the token endpoint is the same for both the
*  refresh request and the exchange-code-for-token request (which happens when getting
*  the OAuth2 token for the 1st time).   Wish uses a different URL for the refresh:
loOauth2.TokenEndpoint = "https://merchant.wish.com/api/v3/oauth/refresh_token"

*  The following uncommon option was added in Chilkat v9.5.0.85
loOauth2.UncommonOptions = "EXCHANGE_CODE_FOR_TOKEN_USING_GET"

*  Replace these with actual values.
loOauth2.ClientId = "WISH-CLIENT-ID"
loOauth2.ClientSecret = "WISH-CLIENT-SECRET"

*  Get the "refresh_token"
loOauth2.RefreshToken = loJsonToken.StringOf("data.refresh_token")

*  Send the HTTP request to refresh the access token..
lnSuccess = loOauth2.RefreshAccessToken()
IF (lnSuccess <> 1) THEN
    ? loOauth2.LastErrorText
    RELEASE loJsonToken
    RELEASE loOauth2
    CANCEL
ENDIF

*  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.
loSbJson = CreateObject('Chilkat.StringBuilder')
loSbJson.Append(loOauth2.AccessTokenResponse)
loSbJson.WriteFile("qa_data/tokens/wish.json","utf-8",0)

? "OAuth2 token refreshed!"
? "New Access Token = " + loOauth2.AccessToken

RELEASE loJsonToken
RELEASE loOauth2
RELEASE loSbJson