(C) QuickBooks - Query a Customer

Demonstrates how to query QuickBooks customers.

A sample JSON response body is available at Sample Quickbooks Customer Query JSON Response

For more information, see https://developer.intuit.com/app/developer/qbo/docs/api/accounting/all-entities/customer#query-a-customer

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#include <C_CkJsonObject.h>
#include <C_CkRest.h>
#include <C_CkStringBuilder.h>

void ChilkatSample(void)
    {
    HCkJsonObject jsonToken;
    BOOL success;
    HCkRest rest;
    BOOL bAutoReconnect;
    HCkStringBuilder sbAuth;
    const char *query;
    const char *responseBody;
    HCkJsonObject json;
    int numRecords;
    int i;

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

    // Get our previously obtained OAuth2 access token, which should contain JSON like this:
    // {
    //   "expires_in": 3600,
    //   "x_refresh_token_expires_in": 8726400,
    //   "refresh_token": "L011546037639r ... 3vR2DrbOmg0Sdagw",
    //   "access_token": "eyJlbmMiOiJBMTI4Q0 ... oETJEMbeggg",
    //   "token_type": "bearer"
    // }

    jsonToken = CkJsonObject_Create();
    success = CkJsonObject_LoadFile(jsonToken,"qa_data/tokens/qb-access-token.json");

    rest = CkRest_Create();

    // Connect using TLS.
    // A single REST object, once connected, can be used for many Quickbooks REST API calls.
    // The auto-reconnect indicates that if the already-established HTTPS connection is closed,
    // then it will be automatically re-established as needed.
    bAutoReconnect = TRUE;
    success = CkRest_Connect(rest,"sandbox-quickbooks.api.intuit.com",443,TRUE,bAutoReconnect);
    if (success != TRUE) {
        printf("%s\n",CkRest_lastErrorText(rest));
        CkJsonObject_Dispose(jsonToken);
        CkRest_Dispose(rest);
        return;
    }

    sbAuth = CkStringBuilder_Create();
    CkStringBuilder_Append(sbAuth,"Bearer ");
    CkStringBuilder_Append(sbAuth,CkJsonObject_stringOf(jsonToken,"access_token"));
    CkRest_putAuthorization(rest,CkStringBuilder_getAsString(sbAuth));

    CkRest_AddHeader(rest,"Accept","application/json");
    CkRest_putAllowHeaderFolding(rest,FALSE);

    query = "select * from Customer";
    CkRest_AddQueryParam(rest,"query",query);
    CkRest_AddQueryParam(rest,"minorversion","45");

    // The company ID is 123146096291789
    responseBody = CkRest_fullRequestNoBody(rest,"GET","/v3/company/123146096291789/query");
    if (CkRest_getLastMethodSuccess(rest) != TRUE) {
        printf("%s\n",CkRest_lastErrorText(rest));
        CkJsonObject_Dispose(jsonToken);
        CkRest_Dispose(rest);
        CkStringBuilder_Dispose(sbAuth);
        return;
    }

    // We should expect a 200 response if successful.
    if (CkRest_getResponseStatusCode(rest) != 200) {
        printf("Request Header: \n");
        printf("%s\n",CkRest_lastRequestHeader(rest));
        printf("----\n");
        printf("Response StatusCode = %d\n",CkRest_getResponseStatusCode(rest));
        printf("Response StatusLine: %s\n",CkRest_responseStatusText(rest));
        printf("Response Header:\n");
        printf("%s\n",CkRest_responseHeader(rest));
        printf("%s\n",responseBody);
        CkJsonObject_Dispose(jsonToken);
        CkRest_Dispose(rest);
        CkStringBuilder_Dispose(sbAuth);
        return;
    }

    // Load the JSON response into a JSON object for parsing.
    // A sample JSON response is shown below.
    json = CkJsonObject_Create();
    CkJsonObject_putEmitCompact(json,FALSE);
    CkJsonObject_Load(json,responseBody);

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

    // Iterate over each customer returned.
    numRecords = CkJsonObject_SizeOfArray(json,"QueryResponse.Customer");
    i = 0;
    while (i < numRecords) {

        CkJsonObject_putI(json,i);
        printf("Name: %s\n",CkJsonObject_stringOf(json,"QueryResponse.Customer[i].FullyQualifiedName"));
        printf("Id: %s\n",CkJsonObject_stringOf(json,"QueryResponse.Customer[i].Id"));
        printf("City: %s\n",CkJsonObject_stringOf(json,"QueryResponse.Customer[i].BillAddr.City"));
        printf("----\n");
        i = i + 1;
    }

    printf("Success.\n");


    CkJsonObject_Dispose(jsonToken);
    CkRest_Dispose(rest);
    CkStringBuilder_Dispose(sbAuth);
    CkJsonObject_Dispose(json);

    }