C

Send JSON REST Request, Get JSON Response

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Demonstrates sending a RESTful JSON request, and receiving a JSON response. This example will create a bucket in Google Cloud Storage (which involves sending and receiving JSON). C

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

void ChilkatSample(void)
    {
    BOOL success;
    HCkAuthGoogle gAuth;
    HCkRest rest;
    BOOL bAutoReconnect;
    HCkJsonObject jsonReqBody;
    HCkJsonObject objVersioning;
    const char *jsonResponseStr;

    success = FALSE;

    //  This example will create a bucket in Google Cloud Storage.

    //  It requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    gAuth = CkAuthGoogle_Create();
    //  Obtain an access token as shown in one of the following examples:
    //  See Get Access Token using a Service Account JSON Key
    //  See Get Access Token using a P12 File

    rest = CkRest_Create();

    //  Connect using TLS.
    bAutoReconnect = TRUE;
    success = CkRest_Connect(rest,"www.googleapis.com",443,TRUE,bAutoReconnect);

    //  Provide the authentication credentials (i.e. the access key)
    success = CkRest_SetAuthGoogle(rest,gAuth);

    //  Build the JSON request body for creating a bucket.
    //  The only required property is the "name", but we'll add more
    //  to make a better example..
    jsonReqBody = CkJsonObject_Create();
    CkJsonObject_AppendString(jsonReqBody,"name","chilkat-bucket-c");
    CkJsonObject_AppendString(jsonReqBody,"kind","storage#bucket");
    CkJsonObject_AppendString(jsonReqBody,"location","US");

    objVersioning = CkJsonObject_Create();
    CkJsonObject_AppendObject2(jsonReqBody,"versioning",objVersioning);
    CkJsonObject_AppendBool(objVersioning,"enabled",TRUE);

    //  Show the HTTP request body we'll be sending.
    printf("%s\n",CkJsonObject_emit(jsonReqBody));

    //  Add the required query parameter.
    //  See https://cloud.google.com/storage/docs/json_api/v1/buckets/insert
    success = CkRest_AddQueryParam(rest,"project","chilkattest-1050");

    //  Add the Content-Type HTTP request header.
    success = CkRest_AddHeader(rest,"Content-Type","application/json; charset=UTF-8");

    jsonResponseStr = CkRest_fullRequestString(rest,"POST","/storage/v1/b",CkJsonObject_emit(jsonReqBody));
    if (CkRest_getLastMethodSuccess(rest) == FALSE) {
        printf("%s\n",CkRest_lastErrorText(rest));
        CkAuthGoogle_Dispose(gAuth);
        CkRest_Dispose(rest);
        CkJsonObject_Dispose(jsonReqBody);
        CkJsonObject_Dispose(objVersioning);
        return;
    }

    //  Show the JSON response.  (See below for a sample JSON response.)
    printf("Json Response: %s\n",jsonResponseStr);

    //  {
    //   "kind": "storage#bucket",
    //   "id": "chilkat-bucket-c",
    //   "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-bucket-c",
    //   "projectNumber": "999992999999",
    //   "name": "chilkat-bucket-c",
    //   "timeCreated": "2016-04-29T21:08:10.451Z",
    //   "updated": "2016-04-29T21:08:10.451Z",
    //   "metageneration": "1",
    //   "owner": {
    //    "entity": "project-owners-999992999999"
    //   },
    //   "location": "US",
    //   "versioning": {
    //    "enabled": true
    //   },
    //   "storageClass": "STANDARD",
    //   "etag": "CAE="
    //  }
    //  


    CkAuthGoogle_Dispose(gAuth);
    CkRest_Dispose(rest);
    CkJsonObject_Dispose(jsonReqBody);
    CkJsonObject_Dispose(objVersioning);

    }