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PureBasic Examples

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(PureBasic) Refresh Wish for Merchants OAuth2 Access Token

Demonstrates how to refresh a Wish OAuth2 access token.

Note: This example requires Chilkat v9.5.0.85.

Chilkat PureBasic Module Download

Chilkat PureBasic Module

IncludeFile "CkStringBuilder.pb"
IncludeFile "CkJsonObject.pb"
IncludeFile "CkOAuth2.pb"

Procedure ChilkatExample()

    ; 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.

    jsonToken.i = CkJsonObject::ckCreate()
    If jsonToken.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success.i = CkJsonObject::ckLoadFile(jsonToken,"qa_data/tokens/wish.json")
    If success <> 1
        Debug "Failed to load wish.json"
        CkJsonObject::ckDispose(jsonToken)
        ProcedureReturn
    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"
    ;   }
    ; }

    oauth2.i = CkOAuth2::ckCreate()
    If oauth2.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; 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:
    CkOAuth2::setCkTokenEndpoint(oauth2, "https://merchant.wish.com/api/v3/oauth/refresh_token")

    ; The following uncommon option was added in Chilkat v9.5.0.85
    CkOAuth2::setCkUncommonOptions(oauth2, "EXCHANGE_CODE_FOR_TOKEN_USING_GET")

    ; Replace these with actual values.
    CkOAuth2::setCkClientId(oauth2, "WISH-CLIENT-ID")
    CkOAuth2::setCkClientSecret(oauth2, "WISH-CLIENT-SECRET")

    ; Get the "refresh_token"
    CkOAuth2::setCkRefreshToken(oauth2, CkJsonObject::ckStringOf(jsonToken,"data.refresh_token"))

    ; Send the HTTP request to refresh the access token..
    success = CkOAuth2::ckRefreshAccessToken(oauth2)
    If success <> 1
        Debug CkOAuth2::ckLastErrorText(oauth2)
        CkJsonObject::ckDispose(jsonToken)
        CkOAuth2::ckDispose(oauth2)
        ProcedureReturn
    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.
    sbJson.i = CkStringBuilder::ckCreate()
    If sbJson.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkStringBuilder::ckAppend(sbJson,CkOAuth2::ckAccessTokenResponse(oauth2))
    CkStringBuilder::ckWriteFile(sbJson,"qa_data/tokens/wish.json","utf-8",0)

    Debug "OAuth2 token refreshed!"
    Debug "New Access Token = " + CkOAuth2::ckAccessToken(oauth2)


    CkJsonObject::ckDispose(jsonToken)
    CkOAuth2::ckDispose(oauth2)
    CkStringBuilder::ckDispose(sbJson)


    ProcedureReturn
EndProcedure

 

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