Visual FoxPro

Create Restricted Data Token (RDT)

See more Amazon SP-API Examples

Returns a Restricted Data Token (RDT) for one or more restricted resources that you specify. Visual FoxPro

LOCAL lnSuccess
LOCAL loAuthAws
LOCAL loRest
LOCAL lnBTls
LOCAL lnPort
LOCAL lnBAutoReconnect
LOCAL loJsonToken
LOCAL lcLwa_token
LOCAL loJson
LOCAL loSbRequest
LOCAL loSbResponse
LOCAL lcUri
LOCAL lnStatusCode
LOCAL loJsonResp
LOCAL lnExpiresIn
LOCAL lcRestrictedDataToken

lnSuccess = 0

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

loAuthAws = CreateObject('Chilkat.AuthAws')
loAuthAws.AccessKey = "AWS_ACCESS_KEY"
loAuthAws.SecretKey = "AWS_SECRET_KEY"
loAuthAws.ServiceName = "execute-api"
* Use the region that is correct for your needs.
loAuthAws.Region = "eu-west-1"

loRest = CreateObject('Chilkat.Rest')
lnBTls = 1
lnPort = 443
lnBAutoReconnect = 1
* The sandbox endpoint (sandbox.sellingpartnerapi-eu.amazon.com) fails.
* Use the production endpoint and see the note below.
lnSuccess = loRest.Connect("sellingpartnerapi-eu.amazon.com",lnPort,lnBTls,lnBAutoReconnect)
IF (lnSuccess = 0) THEN
    ? loRest.LastErrorText
    RELEASE loAuthAws
    RELEASE loRest
    CANCEL
ENDIF

lnSuccess = loRest.SetAuthAws(loAuthAws)

* Load the previously obtained LWA access token.
* See Fetch SP-API LWA Access Token
loJsonToken = CreateObject('Chilkat.JsonObject')
lnSuccess = loJsonToken.LoadFile("qa_data/tokens/sp_api_lwa_token.json")
IF (lnSuccess = 0) THEN
    ? "Failed to load LWA access token."
    RELEASE loAuthAws
    RELEASE loRest
    RELEASE loJsonToken
    CANCEL
ENDIF

* Add the x-amz-access-token request header.
lcLwa_token = loJsonToken.StringOf("access_token")
loRest.ClearAllHeaders()
loRest.AddHeader("x-amz-access-token",lcLwa_token)

* We're going to send a POST with the following JSON body:

* {
*   "restrictedResources": [
*     {
*       "method": "GET",
*       "path": "/orders/v0/orders",
*       "dataElements": ["buyerInfo", "shippingAddress"]
*     }
*   ]
* }

* Use this online tool to generate code from sample JSON: 
* Generate Code to Create JSON

loJson = CreateObject('Chilkat.JsonObject')
loJson.UpdateString("restrictedResources[0].method","GET")
loJson.UpdateString("restrictedResources[0].path","/orders/v0/orders")
loJson.UpdateString("restrictedResources[0].dataElements[0]","buyerInfo")
loJson.UpdateString("restrictedResources[0].dataElements[1]","shippingAddress")

loSbRequest = CreateObject('Chilkat.StringBuilder')
loJson.EmitSb(loSbRequest)

loSbResponse = CreateObject('Chilkat.StringBuilder')
lcUri = "/tokens/2021-03-01/restrictedDataToken"
lnSuccess = loRest.FullRequestSb("POST",lcUri,loSbRequest,loSbResponse)
IF (lnSuccess = 0) THEN
    ? loRest.LastErrorText
    RELEASE loAuthAws
    RELEASE loRest
    RELEASE loJsonToken
    RELEASE loJson
    RELEASE loSbRequest
    RELEASE loSbResponse
    CANCEL
ENDIF

* ------------------------------------------------------------------------------------
* Note: Using the sandbox endpoint, such as sandbox.sellingpartnerapi-eu.amazon.com
* results in a response status code of 400 with the following error:
* [{"code":"InvalidInput","message":"Could not match input arguments"}]
* Getting a restricted data token seems to only work with the production endpoint.
* ------------------------------------------------------------------------------------

* Examine the response status.
lnStatusCode = loRest.ResponseStatusCode
IF (lnStatusCode <> 200) THEN
    ? "Response status code: " + STR(lnStatusCode)
    ? "Response status text: " + loRest.ResponseStatusText
    ? "Response body: "
    ? loSbResponse.GetAsString()
    ? "Failed."
    RELEASE loAuthAws
    RELEASE loRest
    RELEASE loJsonToken
    RELEASE loJson
    RELEASE loSbRequest
    RELEASE loSbResponse
    CANCEL
ENDIF

? loSbResponse.GetAsString()

* If successful, gets a JSON response such as the following:

* {
*   "expiresIn": 3600,
*   "restrictedDataToken": "Atz.sprdt|AYAB.....TQ="
* }

* Use this online tool to generate parsing code from sample JSON: 
* Generate Parsing Code from JSON

loJsonResp = CreateObject('Chilkat.JsonObject')
loJsonResp.LoadSb(loSbResponse)

lnExpiresIn = loJsonResp.IntOf("expiresIn")
lcRestrictedDataToken = loJsonResp.StringOf("restrictedDataToken")

* Save the RDT for subsequent use..
lnSuccess = loJsonResp.WriteFile("qa_data/tokens/sp_api_rdt_token.json")

? "Success!"

RELEASE loAuthAws
RELEASE loRest
RELEASE loJsonToken
RELEASE loJson
RELEASE loSbRequest
RELEASE loSbResponse
RELEASE loJsonResp