(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 <CkCert.h>
#include <CkDateTime.h>
#include <CkCrypt2.h>
#include <CkStringBuilder.h>
#include <CkPrivateKey.h>
#include <CkRsa.h>
#include <CkHttp.h>
#include <CkJsonObject.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.)
    CkCert cert;
    bool success = cert.LoadPfxFile("qa_data/pfx/my_ibanity_certificate.pfx","my_pfx_password");
    if (success == false) {
        std::cout << cert.lastErrorText() << "\r\n";
        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.

    CkDateTime dtNow;
    dtNow.SetFromCurrentSystemTime();
    const char *created = dtNow.getAsUnixTimeStr(false);

    CkCrypt2 crypt2;
    crypt2.put_HashAlgorithm("sha512");
    crypt2.put_EncodingMode("base64");

    CkStringBuilder sbDigestHdrValue;
    sbDigestHdrValue.Append("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(""));

    std::cout << "Generated Digest" << "\r\n";
    std::cout << sbDigestHdrValue.getAsString() << "\r\n";

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

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

    std::cout << "Signing String:" << "\r\n";
    std::cout << sbSigningString.getAsString() << "\r\n";

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

    CkPrivateKey privKey;
    success = privKey.LoadEncryptedPemFile("my_ibanity_signature_private_key.pem","pem_password");
    if (success == false) {
        std::cout << privKey.lastErrorText() << "\r\n";
        return;
    }

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

    success = rsa.ImportPrivateKeyObj(privKey);
    if (success == false) {
        std::cout << rsa.lastErrorText() << "\r\n";
        return;
    }

    // Sign the signing string.
    const char *sigBase64 = rsa.signStringENC(sbSigningString.getAsString(),"sha-256");
    if (rsa.get_LastMethodSuccess() == false) {
        std::cout << rsa.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "Signature:" << "\r\n";
    std::cout << sigBase64 << "\r\n";

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

    // Send the GET request..
    CkHttp http;

    success = http.SetSslClientCert(cert);
    if (success == false) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

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

    CkStringBuilder sbResponseBody;
    success = http.QuickGetSb("https://api.ibanity.com/xs2a/financial-institutions",sbResponseBody);
    if (success == false) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

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

    std::cout << "Response Body:" << "\r\n";
    std::cout << jResp.emit() << "\r\n";

    int respStatusCode = http.get_LastStatus();
    std::cout << "Response Status Code = " << respStatusCode << "\r\n";
    if (respStatusCode >= 400) {
        std::cout << "Response Header:" << "\r\n";
        std::cout << http.lastHeader() << "\r\n";
        std::cout << "Failed." << "\r\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 char *attributesBic = 0;
    bool attributesBulkPaymentsEnabled;
    const char *attributesCountry = 0;
    bool attributesFinancialInstitutionCustomerReferenceRequired;
    bool attributesFutureDatedPaymentsAllowed;
    const char *attributesLogoUrl = 0;
    const char *attributesMaintenanceFrom = 0;
    const char *attributesMaintenanceTo = 0;
    const char *attributesMaintenanceType = 0;
    const char *attributesMaxRequestedAccountReferences = 0;
    int attributesMinRequestedAccountReferences;
    const char *attributesName = 0;
    bool attributesPaymentsEnabled;
    bool attributesPeriodicPaymentsEnabled;
    const char *attributesPrimaryColor = 0;
    bool attributesRequiresCredentialStorage;
    bool attributesRequiresCustomerIpAddress;
    bool attributesSandbox;
    const char *attributesSecondaryColor = 0;
    const char *attributesSharedBrandName = 0;
    const char *attributesSharedBrandReference = 0;
    const char *attributesStatus = 0;
    const char *id = 0;
    const char *linksSelf = 0;
    const char *v_type = 0;
    int j;
    int count_j;
    const char *strVal = 0;

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

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

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

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

        i = i + 1;
    }
    }