(C) eBay -- Get Inventory Items

Retrieves up to 100 inventory items. If an eBay account has more than 100 inventory items, then the Nth page of inventory items can be retrieved, until there are no more pages. (The first page of records has a value of 0, the second page of records has a value of 1, etc.)

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#include <C_CkHttp.h>
#include <C_CkStringBuilder.h>
#include <C_CkJsonObject.h>
#include <C_CkJsonArray.h>

void ChilkatSample(void)
    {
    const char *accessToken;
    HCkHttp http;
    HCkStringBuilder sbUrl;
    int numReplaced;
    HCkStringBuilder sbAuth;
    const char *strJson;
    HCkJsonObject json;
    int numItems;
    int i;
    int j;
    HCkJsonArray brands;
    int numBrands;
    HCkJsonArray features;
    int numFeatures;

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

    // Use a previously obtained user token.  The token should look something like this:
    // "v^1.1#i^1#r^0#p^3#I^3#f^0#t^H4sIAAAAAAAAAOVXa2wUVRTu9k ... 89xuCWYREAAA=="
    accessToken = "EBAY_ACCESS_TOKEN";

    http = CkHttp_Create();

    // This example uses the sandbox.  
    // Change "api.sandbox.ebay.com" to "api.ebay.com" to use the production system.
    sbUrl = CkStringBuilder_Create();
    CkStringBuilder_Append(sbUrl,"https://api.sandbox.ebay.com/sell/inventory/v1/inventory_item?limit=_LIMIT&offset=_OFFSET");
    numReplaced = CkStringBuilder_Replace(sbUrl,"_LIMIT","100");
    // The offset indicates the page number.  Offset 0 gets items 0-99 (if limit=100),
    // Offset 1 gets items 100-199, etc.
    numReplaced = CkStringBuilder_Replace(sbUrl,"_OFFSET","0");

    // Add our access token to the request, which is a header
    // having the following format:
    // Authorization: Bearer <userAccessToken>
    sbAuth = CkStringBuilder_Create();
    CkStringBuilder_Append(sbAuth,"Bearer ");
    CkStringBuilder_Append(sbAuth,accessToken);
    CkHttp_SetRequestHeader(http,"Authorization",CkStringBuilder_getAsString(sbAuth));

    CkHttp_putAccept(http,"application/json");
    CkHttp_putAllowGzip(http,TRUE);

    strJson = CkHttp_quickGetStr(http,CkStringBuilder_getAsString(sbUrl));
    if (CkHttp_getLastMethodSuccess(http) != TRUE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkStringBuilder_Dispose(sbUrl);
        CkStringBuilder_Dispose(sbAuth);
        return;
    }

    // The response should be JSON, even if an error.
    json = CkJsonObject_Create();
    CkJsonObject_Load(json,strJson);
    CkJsonObject_putEmitCompact(json,FALSE);

    printf("Response status code = %d\n",CkHttp_getLastStatus(http));

    if (CkHttp_getLastStatus(http) != 200) {
        printf("%s\n",CkJsonObject_emit(json));
        printf("Failed\n");
        CkHttp_Dispose(http);
        CkStringBuilder_Dispose(sbUrl);
        CkStringBuilder_Dispose(sbAuth);
        CkJsonObject_Dispose(json);
        return;
    }

    // See the sample JSON response below..
    printf("%s\n",CkJsonObject_emit(json));

    // To iterate over the inventory items..
    numItems = CkJsonObject_SizeOfArray(json,"inventoryItems");
    i = 0;

    while (i < numItems) {
        CkJsonObject_putI(json,i);
        printf("%d) sku: %s\n",i,CkJsonObject_stringOf(json,"inventoryItems[i].sku"));
        printf("    title: %s\n",CkJsonObject_stringOf(json,"inventoryItems[i].product.title"));

        if (CkJsonObject_HasMember(json,"inventoryItems[i].product.aspects.Brand") == TRUE) {
            brands = CkJsonObject_ArrayOf(json,"inventoryItems[i].product.aspects.Brand");
            numBrands = CkJsonArray_getSize(brands);
            j = 0;
            while (j < numBrands) {
                printf("    brand: %s\n",CkJsonArray_stringAt(brands,j));
                j = j + 1;
            }

        }

        if (CkJsonObject_HasMember(json,"inventoryItems[i].product.aspects.Feature") == TRUE) {
            features = CkJsonObject_ArrayOf(json,"inventoryItems[i].product.aspects.Feature");
            numFeatures = CkJsonArray_getSize(features);
            j = 0;
            while (j < numFeatures) {
                printf("    feature: %s\n",CkJsonArray_stringAt(features,j));
                j = j + 1;
            }

        }

        i = i + 1;
    }

    // The output of the above loop:

    // 0) sku: GP-Cam-01
    //     title: GoPro Hero4 Helmet Cam
    //     brand: GoPro
    // 1) sku: AppleWatch
    //     title: Test listing - do not bid or buy - awesome Apple watch test 2
    //     feature: Water resistance
    //     feature: GPS
    // 
    // 

    // A sample JSON response with 2 inventory items.

    // { 
    //   "total": 2,
    //   "size": 2,
    //   "href": "/sell/inventory/v1/inventory_item?offset=0&limit=100",
    //   "limit": 100,
    //   "inventoryItems": [
    //     { 
    //       "sku": "GP-Cam-01",
    //       "product": { 
    //         "title": "GoPro Hero4 Helmet Cam",
    //         "aspects": { 
    //           "Brand": [
    //             "GoPro"
    //           ],
    //           "Optical Zoom": [
    //             "10x"
    //           ],
    //           "Type": [
    //             "Helmet/Action"
    //           ],
    //           "Recording Definition": [
    //             "High Definition"
    //           ],
    //           "Media Format": [
    //             "Flash Drive (SSD)"
    //           ],
    //           "Storage Type": [
    //             "Removable"
    //           ]
    //         },
    //         "description": "New GoPro Hero4 Helmet Cam. Unopened box.",
    //         "imageUrls": [
    //           "http://i.ebayimg.com/images/i/182196556219-0-1/s-l1000.jpg",
    //           "http://i.ebayimg.com/images/i/182196556219-0-1/s-l1001.jpg",
    //           "http://i.ebayimg.com/images/i/182196556219-0-1/s-l1002.jpg"
    //         ]
    //       },
    //       "condition": "NEW",
    //       "availability": { 
    //         "pickupAtLocationAvailability": [
    //         ],
    //         "shipToLocationAvailability": { 
    //           "quantity": 50
    //         }
    //       }
    //     },
    //     { 
    //       "sku": "AppleWatch",
    //       "product": { 
    //         "title": "Test listing - do not bid or buy - awesome Apple watch test 2",
    //         "aspects": { 
    //           "CPU": [
    //             "Dual-Core Processor"
    //           ],
    //           "Feature": [
    //             "Water resistance",
    //             "GPS"
    //           ]
    //         },
    //         "description": "Test listing - do not bid or buy\n Built-in GPS. Water resistance to 50 meters.1 A new lightning-fast dual-core processor. And a display that?s two times brighter than before. Full of features that help you stay active, motivated, and connected, Apple Watch Series 2 is designed for all the ways you move ",
    //         "upc": [
    //           "888462079525"
    //         ],
    //         "imageUrls": [
    //           "http://store.storeimages.cdn-apple.com/4973/as-images.apple.com/is/image/AppleInc/aos/published/images/S/1/S1/42/S1-42-alu-silver-sport-white-grid?wid=332&hei=392&fmt=jpeg&qlt=95&op_sharpen=0&resMode=bicub&op_usm=0.5,0.5,0,0&iccEmbed=0&layer=comp&.v=1472247758975",
    //           "http://store.storeimages.cdn-apple.com/4973/as-images.apple.com/is/image/AppleInc/aos/published/images/4/2/42/stainless/42-stainless-sport-white-grid?wid=332&hei=392&fmt=jpeg&qlt=95&op_sharpen=0&resMode=bicub&op_usm=0.5,0.5,0,0&iccEmbed=0&layer=comp&.v=1472247760390",
    //           "http://store.storeimages.cdn-apple.com/4973/as-images.apple.com/is/image/AppleInc/aos/published/images/4/2/42/ceramic/42-ceramic-sport-cloud-grid?wid=332&hei=392&fmt=jpeg&qlt=95&op_sharpen=0&resMode=bicub&op_usm=0.5,0.5,0,0&iccEmbed=0&layer=comp&.v=1472247758007"
    //         ]
    //       },
    //       "condition": "NEW",
    //       "packageWeightAndSize": { 
    //         "dimensions": { 
    //           "width": 15.0,
    //           "length": 10.0,
    //           "height": 5.0,
    //           "unit": "INCH"
    //         },
    //         "weight": { 
    //           "value": 2.0,
    //           "unit": "POUND"
    //         }
    //       },
    //       "availability": { 
    //         "pickupAtLocationAvailability": [
    //         ],
    //         "shipToLocationAvailability": { 
    //           "quantity": 10
    //         }
    //       }
    //     }
    //   ]
    // }
    // 
    // 
    // 


    CkHttp_Dispose(http);
    CkStringBuilder_Dispose(sbUrl);
    CkStringBuilder_Dispose(sbAuth);
    CkJsonObject_Dispose(json);

    }