(Unicode C++) Ibanity XS2A List Financial Institutions

See more Ibanity Examples

Demonstrates how to send a request to get a list of financial institutions.

For more information, see https://documentation.ibanity.com/xs2a/api/curl#authentication

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#include <CkCertW.h>
#include <CkDateTimeW.h>
#include <CkCrypt2W.h>
#include <CkStringBuilderW.h>
#include <CkPrivateKeyW.h>
#include <CkRsaW.h>
#include <CkHttpW.h>
#include <CkJsonObjectW.h>

void ChilkatSample(void)
    {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    //  Send the following request:

    // $ curl -X GET https://api.ibanity.com/xs2a/financial-institutions \
    // --cert certificate.pem \
    // --key private_key.pem \
    // -H 'Signature: keyId="75b5d796-de5c-400a-81ce-e72371b01cbc",created=1599659223,algorithm="hs2019",headers="(request-target) digest (created) host",signature="BASE64(RSA-SHA256(SIGNING_STRING))"' \
    // -H 'Digest: SHA-512=beDaRguyEb8fhh5wnl37bOTDtvhuYZyZNkTZ9LiC9Wc='

    // 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.)
    CkCertW cert;
    bool success = cert.LoadPfxFile(L"qa_data/pfx/my_ibanity_certificate.pfx",L"my_pfx_password");
    if (success == false) {
        wprintf(L"%s\n",cert.lastErrorText());
        return;
    }

    // We need to calculate the Digest and Signature header fields.
    // For a detailed explanation, see Calculate Ibanity HTTP Signature Example

    // We'll just write the code here as briefly as possible.

    CkDateTimeW dtNow;
    dtNow.SetFromCurrentSystemTime();
    const wchar_t *created = dtNow.getAsUnixTimeStr(false);

    CkCrypt2W crypt2;
    crypt2.put_HashAlgorithm(L"sha512");
    crypt2.put_EncodingMode(L"base64");

    CkStringBuilderW sbDigestHdrValue;
    sbDigestHdrValue.Append(L"SHA-512=");
    // GET requests have empty payloads.  The SHA-512 hash of the empty string is the same for all GET requests.
    // Therefore all GET requests will use "z4PhNX7vuL3xVChQ1m2AB9Yg5AULVxXcg/SpIdNs6c5H0NE8XYXysP+DGNKHfuwvY7kxvUdBeoGlODJ6+SfaPg=="
    // You can eliminate the explicit hash computation (for GET requests) and simply use the above literal string.
    sbDigestHdrValue.Append(crypt2.hashStringENC(L""));

    wprintf(L"Generated Digest\n");
    wprintf(L"%s\n",sbDigestHdrValue.getAsString());

    const wchar_t *request_target = L"get /xs2a/financial-institutions";

    CkStringBuilderW sbSigningString;
    sbSigningString.Append(L"(request-target): ");
    sbSigningString.AppendLine(request_target,false);
    sbSigningString.Append(L"host: ");
    sbSigningString.AppendLine(L"api.ibanity.com",false);
    sbSigningString.Append(L"digest: ");
    sbSigningString.AppendLine(sbDigestHdrValue.getAsString(),false);
    sbSigningString.Append(L"(created): ");
    sbSigningString.Append(created);
    // ibanity-idempotency-key is not used with GET requests.

    wprintf(L"Signing String:\n");
    wprintf(L"%s\n",sbSigningString.getAsString());

    const wchar_t *signed_headers_list = L"(request-target) host digest (created)";

    CkPrivateKeyW privKey;
    success = privKey.LoadEncryptedPemFile(L"my_ibanity_signature_private_key.pem",L"pem_password");
    if (success == false) {
        wprintf(L"%s\n",privKey.lastErrorText());
        return;
    }

    CkRsaW rsa;
    rsa.put_PssSaltLen(32);
    rsa.put_EncodingMode(L"base64");
    // Use the RSASSA-PSS signature algorithm
    rsa.put_OaepPadding(true);

    success = rsa.ImportPrivateKeyObj(privKey);
    if (success == false) {
        wprintf(L"%s\n",rsa.lastErrorText());
        return;
    }

    // Sign the signing string.
    const wchar_t *sigBase64 = rsa.signStringENC(sbSigningString.getAsString(),L"sha-256");
    if (rsa.get_LastMethodSuccess() == false) {
        wprintf(L"%s\n",rsa.lastErrorText());
        return;
    }

    wprintf(L"Signature:\n");
    wprintf(L"%s\n",sigBase64);

    // Build the signature header value.
    CkStringBuilderW sbSigHeaderValue;
    sbSigHeaderValue.Append(L"keyId=\"");
    // Use your identifier for the application's signature certificate, obtained from the Developer Portal
    sbSigHeaderValue.Append(L"a0ce296d-84c8-4bd5-8eb4-de0339950cfa");
    sbSigHeaderValue.Append(L"\",created=");
    sbSigHeaderValue.Append(created);
    sbSigHeaderValue.Append(L",algorithm=\"hs2019\",headers=\"");
    sbSigHeaderValue.Append(signed_headers_list);
    sbSigHeaderValue.Append(L"\",signature=\"");
    sbSigHeaderValue.Append(sigBase64);
    sbSigHeaderValue.Append(L"\"");

    // Send the GET request..
    CkHttpW http;

    success = http.SetSslClientCert(cert);
    if (success == false) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    http.SetRequestHeader(L"Signature",sbSigHeaderValue.getAsString());
    http.SetRequestHeader(L"Digest",sbDigestHdrValue.getAsString());

    CkStringBuilderW sbResponseBody;
    success = http.QuickGetSb(L"https://api.ibanity.com/xs2a/financial-institutions",sbResponseBody);
    if (success == false) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    CkJsonObjectW jResp;
    jResp.LoadSb(sbResponseBody);
    jResp.put_EmitCompact(false);

    wprintf(L"Response Body:\n");
    wprintf(L"%s\n",jResp.emit());

    int respStatusCode = http.get_LastStatus();
    wprintf(L"Response Status Code = %d\n",respStatusCode);
    if (respStatusCode >= 400) {
        wprintf(L"Response Header:\n");
        wprintf(L"%s\n",http.lastHeader());
        wprintf(L"Failed.\n");
        return;
    }

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

    // {
    //   "data": [
    //     {
    //       "attributes": {
    //         "authorizationModels": [
    //           "detailed",
    //           "financialInstitutionOffered"
    //         ],
    //         "bic": "NBBEBEBB203",
    //         "bulkPaymentsEnabled": true,
    //         "bulkPaymentsProductTypes": [
    //           "sepaCreditTransfer"
    //         ],
    //         "country": null,
    //         "financialInstitutionCustomerReferenceRequired": false,
    //         "futureDatedPaymentsAllowed": true,
    //         "logoUrl": "https://s3.eu-central-1.amazonaws.com/ibanity-production-financial-institution-assets/sandbox.png",
    //         "maintenanceFrom": null,
    //         "maintenanceTo": null,
    //         "maintenanceType": null,
    //         "maxRequestedAccountReferences": null,
    //         "minRequestedAccountReferences": 0,
    //         "name": "Bogus Financial",
    //         "paymentsEnabled": true,
    //         "paymentsProductTypes": [
    //           "sepaCreditTransfer"
    //         ],
    //         "periodicPaymentsEnabled": true,
    //         "periodicPaymentsProductTypes": [
    //           "sepaCreditTransfer"
    //         ],
    //         "primaryColor": "#7d39ff",
    //         "requiresCredentialStorage": false,
    //         "requiresCustomerIpAddress": false,
    //         "sandbox": true,
    //         "secondaryColor": "#3DF2C2",
    //         "sharedBrandName": null,
    //         "sharedBrandReference": null,
    //         "status": "beta"
    //       },
    //       "id": "2d3d70a4-cb3c-477c-97e1-cbe495b82841",
    //       "links": {
    //         "self": "https://api.ibanity.com/xs2a/financial-institutions/2d3d70a4-cb3c-477c-97e1-cbe495b82841"
    //       },
    //       "type": "financialInstitution"
    //     },
    //     {
    //       "attributes": {
    //         "authorizationModels": [
    //           "detailed",
    //           "financialInstitutionOffered"
    //         ],
    //         "bic": "NBBEBEBB203",
    //         "bulkPaymentsEnabled": true,
    //         "bulkPaymentsProductTypes": [
    //           "sepaCreditTransfer"
    //         ],
    //         "country": null,
    //         "financialInstitutionCustomerReferenceRequired": false,
    //         "futureDatedPaymentsAllowed": true,
    //         "logoUrl": "https://s3.eu-central-1.amazonaws.com/ibanity-production-financial-institution-assets/sandbox.png",
    //         "maintenanceFrom": null,
    //         "maintenanceTo": null,
    //         "maintenanceType": null,
    //         "maxRequestedAccountReferences": null,
    //         "minRequestedAccountReferences": 0,
    //         "name": "XYZ Trust",
    //         "paymentsEnabled": true,
    //         "paymentsProductTypes": [
    //           "sepaCreditTransfer"
    //         ],
    //         "periodicPaymentsEnabled": true,
    //         "periodicPaymentsProductTypes": [
    //           "sepaCreditTransfer"
    //         ],
    //         "primaryColor": "#7d39ff",
    //         "requiresCredentialStorage": false,
    //         "requiresCustomerIpAddress": false,
    //         "sandbox": true,
    //         "secondaryColor": "#3DF2C2",
    //         "sharedBrandName": null,
    //         "sharedBrandReference": null,
    //         "status": "beta"
    //       },
    //       "id": "d4100f28-936b-4379-a3f8-86314a2014fb",
    //       "links": {
    //         "self": "https://api.ibanity.com/xs2a/financial-institutions/d4100f28-936b-4379-a3f8-86314a2014fb"
    //       },
    //       "type": "financialInstitution"
    //     }
    //   ],
    //   "links": {
    //     "first": "https://api.ibanity.com/xs2a/financial-institutions"
    //   },
    //   "meta": {
    //     "paging": {
    //       "limit": 10
    //     }
    //   }
    // }

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

    // Chilkat functions returning "const char *" return a pointer to temporary internal memory owned and managed by Chilkat.
    // See this example explaining how this memory should be used: const char * functions.

    const wchar_t *attributesBic = 0;
    bool attributesBulkPaymentsEnabled;
    const wchar_t *attributesCountry = 0;
    bool attributesFinancialInstitutionCustomerReferenceRequired;
    bool attributesFutureDatedPaymentsAllowed;
    const wchar_t *attributesLogoUrl = 0;
    const wchar_t *attributesMaintenanceFrom = 0;
    const wchar_t *attributesMaintenanceTo = 0;
    const wchar_t *attributesMaintenanceType = 0;
    const wchar_t *attributesMaxRequestedAccountReferences = 0;
    int attributesMinRequestedAccountReferences;
    const wchar_t *attributesName = 0;
    bool attributesPaymentsEnabled;
    bool attributesPeriodicPaymentsEnabled;
    const wchar_t *attributesPrimaryColor = 0;
    bool attributesRequiresCredentialStorage;
    bool attributesRequiresCustomerIpAddress;
    bool attributesSandbox;
    const wchar_t *attributesSecondaryColor = 0;
    const wchar_t *attributesSharedBrandName = 0;
    const wchar_t *attributesSharedBrandReference = 0;
    const wchar_t *attributesStatus = 0;
    const wchar_t *id = 0;
    const wchar_t *linksSelf = 0;
    const wchar_t *v_type = 0;
    int j;
    int count_j;
    const wchar_t *strVal = 0;

    const wchar_t *linksFirst = jResp.stringOf(L"links.first");
    int metaPagingLimit = jResp.IntOf(L"meta.paging.limit");
    int i = 0;
    int count_i = jResp.SizeOfArray(L"data");
    while (i < count_i) {
        jResp.put_I(i);
        attributesBic = jResp.stringOf(L"data[i].attributes.bic");
        attributesBulkPaymentsEnabled = jResp.BoolOf(L"data[i].attributes.bulkPaymentsEnabled");
        attributesCountry = jResp.stringOf(L"data[i].attributes.country");
        attributesFinancialInstitutionCustomerReferenceRequired = jResp.BoolOf(L"data[i].attributes.financialInstitutionCustomerReferenceRequired");
        attributesFutureDatedPaymentsAllowed = jResp.BoolOf(L"data[i].attributes.futureDatedPaymentsAllowed");
        attributesLogoUrl = jResp.stringOf(L"data[i].attributes.logoUrl");
        attributesMaintenanceFrom = jResp.stringOf(L"data[i].attributes.maintenanceFrom");
        attributesMaintenanceTo = jResp.stringOf(L"data[i].attributes.maintenanceTo");
        attributesMaintenanceType = jResp.stringOf(L"data[i].attributes.maintenanceType");
        attributesMaxRequestedAccountReferences = jResp.stringOf(L"data[i].attributes.maxRequestedAccountReferences");
        attributesMinRequestedAccountReferences = jResp.IntOf(L"data[i].attributes.minRequestedAccountReferences");
        attributesName = jResp.stringOf(L"data[i].attributes.name");
        attributesPaymentsEnabled = jResp.BoolOf(L"data[i].attributes.paymentsEnabled");
        attributesPeriodicPaymentsEnabled = jResp.BoolOf(L"data[i].attributes.periodicPaymentsEnabled");
        attributesPrimaryColor = jResp.stringOf(L"data[i].attributes.primaryColor");
        attributesRequiresCredentialStorage = jResp.BoolOf(L"data[i].attributes.requiresCredentialStorage");
        attributesRequiresCustomerIpAddress = jResp.BoolOf(L"data[i].attributes.requiresCustomerIpAddress");
        attributesSandbox = jResp.BoolOf(L"data[i].attributes.sandbox");
        attributesSecondaryColor = jResp.stringOf(L"data[i].attributes.secondaryColor");
        attributesSharedBrandName = jResp.stringOf(L"data[i].attributes.sharedBrandName");
        attributesSharedBrandReference = jResp.stringOf(L"data[i].attributes.sharedBrandReference");
        attributesStatus = jResp.stringOf(L"data[i].attributes.status");
        id = jResp.stringOf(L"data[i].id");
        linksSelf = jResp.stringOf(L"data[i].links.self");
        v_type = jResp.stringOf(L"data[i].type");
        j = 0;
        count_j = jResp.SizeOfArray(L"data[i].attributes.authorizationModels");
        while (j < count_j) {
            jResp.put_J(j);
            strVal = jResp.stringOf(L"data[i].attributes.authorizationModels[j]");
            j = j + 1;
        }

        j = 0;
        count_j = jResp.SizeOfArray(L"data[i].attributes.bulkPaymentsProductTypes");
        while (j < count_j) {
            jResp.put_J(j);
            strVal = jResp.stringOf(L"data[i].attributes.bulkPaymentsProductTypes[j]");
            j = j + 1;
        }

        j = 0;
        count_j = jResp.SizeOfArray(L"data[i].attributes.paymentsProductTypes");
        while (j < count_j) {
            jResp.put_J(j);
            strVal = jResp.stringOf(L"data[i].attributes.paymentsProductTypes[j]");
            j = j + 1;
        }

        j = 0;
        count_j = jResp.SizeOfArray(L"data[i].attributes.periodicPaymentsProductTypes");
        while (j < count_j) {
            jResp.put_J(j);
            strVal = jResp.stringOf(L"data[i].attributes.periodicPaymentsProductTypes[j]");
            j = j + 1;
        }

        i = i + 1;
    }
    }