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(Tcl) Rabobank Refresh OAuth2 Access TokenDemonstrates how to refresh an expired Rabobank OAuth2 access token. (No interactive user interaction is required to refresh an access token.) Note: This example requires Chilkat v11.0.0 or greater. For more information, see https://developer.rabobank.nl/implementoauth2
load ./chilkat.dll set success 0 # This example requires the Chilkat API to have been previously unlocked. # See Global Unlock Sample for sample code. # We previously obtained an access token and saved the JSON to a file using this example: # Get Rabobank OAuth2 Access Token set json [new_CkJsonObject] set success [CkJsonObject_LoadFile $json "qa_data/tokens/rabobank.json"] if {$success != 1} then { delete_CkJsonObject $json exit } # { # "token_type": "Bearer", # "access_token": "AAIkYTU0ZWM ... sxE0KL0HHWw", # "expires_in": 3600, # "consented_on": 1584641121, # "scope": "ais.balances.read ais.transactions.read-90days ais.transactions.read-history", # "refresh_token": "AAJXXSdN ... Uiblz9ILkxNBlytRGA", # "refresh_token_expires_in": 157784760, # "expires_on": "1584644722" # } # Refresh the access token by sending a POST like this: # # POST /oauth2/token # Headers: # Content-Type: application/x-www-form-urlencoded # Authorization: Basic BASE64(CLIENT_ID + ":" + CLIENT_SECRET) # # Body (x-www-form-urlencoded): # grant_type: refresh_token # refresh_token: REFRESH_TOKEN set req [new_CkHttpRequest] CkHttpRequest_AddParam $req "grant_type" "refresh_token" CkHttpRequest_AddParam $req "refresh_token" [CkJsonObject_stringOf $json "refresh_token"] set http [new_CkHttp] # Causes the "Authorization: Basic BASE64(CLIENT_ID + ":" + CLIENT_SECRET)" header to be added.. CkHttp_put_BasicAuth $http 1 CkHttp_put_Login $http "YOUR_APP_CLIENT_ID" CkHttp_put_Password $http "YOUR_APP_CLIENT_SECRET" CkHttpRequest_put_HttpVerb $req "POST" CkHttpRequest_put_ContentType $req "application/x-www-form-urlencoded" set resp [new_CkHttpResponse] set success [CkHttp_HttpReq $http "https://api-sandbox.rabobank.nl/openapi/sandbox/oauth2/token" $req $resp] if {$success == 0} then { puts [CkHttp_lastErrorText $http] delete_CkJsonObject $json delete_CkHttpRequest $req delete_CkHttp $http delete_CkHttpResponse $resp exit } # Load the JSON response. CkJsonObject_Load $json [CkHttpResponse_bodyStr $resp] CkJsonObject_put_EmitCompact $json 0 # Show the JSON response. puts [CkJsonObject_emit $json] puts "Response status code: [CkHttpResponse_get_StatusCode $resp]" # If the response status code is not 200, then it's an error. if {[CkHttpResponse_get_StatusCode $resp] != 200} then { delete_CkJsonObject $json delete_CkHttpRequest $req delete_CkHttp $http delete_CkHttpResponse $resp exit } # Save the refreshed access token JSON to a file for future requests. set fac [new_CkFileAccess] CkFileAccess_WriteEntireTextFile $fac "qa_data/tokens/rabobank.json" [CkJsonObject_emit $json] "utf-8" 0 delete_CkJsonObject $json delete_CkHttpRequest $req delete_CkHttp $http delete_CkHttpResponse $resp delete_CkFileAccess $fac |
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