PureBasic

Isabel Connect Create First Access Token and Refresh Token

See more Ibanity Examples

Creates your first access token and refresh token. Once created, the refresh token can be used to get a new access token after it expires, or before it expires. PureBasic

IncludeFile "CkJsonObject.pb"
IncludeFile "CkHttp.pb"
IncludeFile "CkCrypt2.pb"
IncludeFile "CkHttpRequest.pb"
IncludeFile "CkHttpResponse.pb"
IncludeFile "CkCert.pb"
IncludeFile "CkStringBuilder.pb"

Procedure ChilkatExample()

    success.i = 0

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

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

    ; Implements the following CURL command:

    ; curl -X POST https://api.ibanity.com/isabel-connect/oauth2/token \
    ; --cert certificate.pem:qwertyuiop1 \
    ; --key private_key.pem  \
    ; -H "Content-Type: application/x-www-form-urlencoded" \
    ; -H "Accept: application/vnd.api+json" \
    ; -H "Ibanity-Idempotency-Key: af621a8f-f74b-41a2-b011-336997633df4"  \
    ; -d grant_type=authorization_code \
    ; -d code=valid_authorization_code \
    ; -d client_id=valid_client_id \
    ; -d client_secret=valid_client_secret \
    ; -d redirect_uri=https://fake-tpp.com 

    ; Ibanity provides the certificate + private key in PFX format.  This example will use the .pfx instead of the pair of PEM files.
    ; (It is also possible to implement using Chilkat with the PEM files, but PFX is easier.)
    cert.i = CkCert::ckCreate()
    If cert.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkCert::ckLoadPfxFile(cert,"qa_data/pfx/my_ibanity_certificate.pfx","my_pfx_password")
    If success = 0
        Debug CkCert::ckLastErrorText(cert)
        CkHttp::ckDispose(http)
        CkCert::ckDispose(cert)
        ProcedureReturn
    EndIf

    success = CkHttp::ckSetSslClientCert(http,cert)
    If success = 0
        Debug CkHttp::ckLastErrorText(http)
        CkHttp::ckDispose(http)
        CkCert::ckDispose(cert)
        ProcedureReturn
    EndIf

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

    CkHttpRequest::setCkHttpVerb(req, "POST")
    CkHttpRequest::setCkPath(req, "/isabel-connect/oauth2/token")
    CkHttpRequest::setCkContentType(req, "application/x-www-form-urlencoded")
    CkHttpRequest::ckAddParam(req,"grant_type","authorization_code")

    ; Note: For sandbox testing, we literally want to use the strings
    ; "valid_authorization_code", "valid_client_id", and "valid_client_secret".
    ; For the live app, you would replace these with actual values.
    CkHttpRequest::ckAddParam(req,"code","valid_authorization_code")
    CkHttpRequest::ckAddParam(req,"client_id","valid_client_id")
    CkHttpRequest::ckAddParam(req,"client_secret","valid_client_secret")
    CkHttpRequest::ckAddParam(req,"redirect_uri","https://fake-tpp.com")

    CkHttpRequest::ckAddHeader(req,"Accept","application/vnd.api+json")

    crypt.i = CkCrypt2::ckCreate()
    If crypt.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    idempotencyKey.s = CkCrypt2::ckGenerateUuid(crypt)
    Debug "Ibanity-Idempotency-Key: " + idempotencyKey
    CkHttpRequest::ckAddHeader(req,"Ibanity-Idempotency-Key",idempotencyKey)

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

    success = CkHttp::ckHttpReq(http,"https://api.ibanity.com/isabel-connect/oauth2/token",req,resp)
    If success = 0
        Debug CkHttp::ckLastErrorText(http)
        CkHttp::ckDispose(http)
        CkCert::ckDispose(cert)
        CkHttpRequest::ckDispose(req)
        CkCrypt2::ckDispose(crypt)
        CkHttpResponse::ckDispose(resp)
        ProcedureReturn
    EndIf

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

    CkHttpResponse::ckGetBodySb(resp,sbResponseBody)
    jResp.i = CkJsonObject::ckCreate()
    If jResp.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkJsonObject::ckLoadSb(jResp,sbResponseBody)
    CkJsonObject::setCkEmitCompact(jResp, 0)

    Debug "Response Body:"
    Debug CkJsonObject::ckEmit(jResp)

    respStatusCode.i = CkHttpResponse::ckStatusCode(resp)
    Debug "Response Status Code = " + Str(respStatusCode)
    If respStatusCode >= 400
        Debug "Response Header:"
        Debug CkHttpResponse::ckHeader(resp)
        Debug "Failed."
        CkHttp::ckDispose(http)
        CkCert::ckDispose(cert)
        CkHttpRequest::ckDispose(req)
        CkCrypt2::ckDispose(crypt)
        CkHttpResponse::ckDispose(resp)
        CkStringBuilder::ckDispose(sbResponseBody)
        CkJsonObject::ckDispose(jResp)
        ProcedureReturn
    EndIf

    ; Sample JSON response:
    ; (Sample code for parsing the JSON response is shown below)

    ; {
    ;   "token_type": "Bearer",
    ;   "scope": "cloudconnect",
    ;   "refresh_token": "valid_refresh_token",
    ;   "expires_in": 1799,
    ;   "access_token": "access_token_1617371230"
    ; }

    ; Sample code for parsing the JSON response...
    ; Use the following online tool to generate parsing code from sample JSON:
    ; Generate Parsing Code from JSON

    token_type.s = CkJsonObject::ckStringOf(jResp,"token_type")
    scope.s = CkJsonObject::ckStringOf(jResp,"scope")
    refresh_token.s = CkJsonObject::ckStringOf(jResp,"refresh_token")
    expires_in.i = CkJsonObject::ckIntOf(jResp,"expires_in")
    access_token.s = CkJsonObject::ckStringOf(jResp,"access_token")

    ; Save to a file for future use in refreshing the access token.
    ; The refresh token is the same each time we refresh to get a new access token.
    success = CkJsonObject::ckWriteFile(jResp,"qa_data/tokens/isabel_refresh_token.json")

    ; Also save to a file to be used as the current access token.
    success = CkJsonObject::ckWriteFile(jResp,"qa_data/tokens/isabel_access_token.json")


    CkHttp::ckDispose(http)
    CkCert::ckDispose(cert)
    CkHttpRequest::ckDispose(req)
    CkCrypt2::ckDispose(crypt)
    CkHttpResponse::ckDispose(resp)
    CkStringBuilder::ckDispose(sbResponseBody)
    CkJsonObject::ckDispose(jResp)


    ProcedureReturn
EndProcedure