(C) Create a Temporary Public Link to a DropBox File

Get a temporary link to stream content of a file. This link will expire in four hours and afterwards you will get 410 Gone.

For more information, see https://www.dropbox.com/developers/documentation/http/documentation#files-get_temporary_link

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

void ChilkatSample(void)
    {
    HCkHttp http;
    BOOL success;
    HCkJsonObject json;
    HCkHttpResponse resp;
    HCkStringBuilder sbResponseBody;
    HCkJsonObject jResp;
    int respStatusCode;
    const char *template_id;
    int j;
    int count_j;
    const char *name;
    const char *value;
    const char *metadataName;
    const char *metadataId;
    const char *metadataClient_modified;
    const char *metadataServer_modified;
    const char *metadataRev;
    int metadataSize;
    const char *metadataPath_lower;
    const char *metadataPath_display;
    BOOL metadataSharing_infoRead_only;
    const char *metadataSharing_infoParent_shared_folder_id;
    const char *metadataSharing_infoModified_by;
    BOOL metadataIs_downloadable;
    BOOL metadataHas_explicit_shared_members;
    const char *metadataContent_hash;
    const char *link;
    int i;
    int count_i;

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

    http = CkHttp_Create();

    // Implements the following CURL command:

    // curl -X POST https://api.dropboxapi.com/2/files/get_temporary_link \
    //     --header "Authorization: Bearer DROPBOX_ACCESS_TOKEN" \
    //     --header "Content-Type: application/json" \
    //     --data "{\"path\": \"/video.mp4\"}"

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

    // The following JSON is sent in the request body.

    // {
    //   "path": "/video.mp4"
    // }

    json = CkJsonObject_Create();
    CkJsonObject_UpdateString(json,"path","/video.mp4");

    CkHttp_SetRequestHeader(http,"Authorization","Bearer DROPBOX_ACCESS_TOKEN");
    CkHttp_SetRequestHeader(http,"Content-Type","application/json");

    resp = CkHttp_PostJson3(http,"https://api.dropboxapi.com/2/files/get_temporary_link","application/json",json);
    if (CkHttp_getLastMethodSuccess(http) == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkJsonObject_Dispose(json);
        return;
    }

    sbResponseBody = CkStringBuilder_Create();
    CkHttpResponse_GetBodySb(resp,sbResponseBody);
    jResp = CkJsonObject_Create();
    CkJsonObject_LoadSb(jResp,sbResponseBody);
    CkJsonObject_putEmitCompact(jResp,FALSE);

    printf("Response Body:\n");
    printf("%s\n",CkJsonObject_emit(jResp));

    respStatusCode = CkHttpResponse_getStatusCode(resp);
    printf("Response Status Code = %d\n",respStatusCode);
    if (respStatusCode >= 400) {
        printf("Response Header:\n");
        printf("%s\n",CkHttpResponse_header(resp));
        printf("Failed.\n");
        CkHttpResponse_Dispose(resp);
        CkHttp_Dispose(http);
        CkJsonObject_Dispose(json);
        CkStringBuilder_Dispose(sbResponseBody);
        CkJsonObject_Dispose(jResp);
        return;
    }

    CkHttpResponse_Dispose(resp);

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

    // {
    //   "metadata": {
    //     "name": "Prime_Numbers.txt",
    //     "id": "id:a4ayc_80_OEAAAAAAAAAXw",
    //     "client_modified": "2015-05-12T15:50:38Z",
    //     "server_modified": "2015-05-12T15:50:38Z",
    //     "rev": "a1c10ce0dd78",
    //     "size": 7212,
    //     "path_lower": "/homework/math/prime_numbers.txt",
    //     "path_display": "/Homework/math/Prime_Numbers.txt",
    //     "sharing_info": {
    //       "read_only": true,
    //       "parent_shared_folder_id": "84528192421",
    //       "modified_by": "dbid:AAH4f99T0taONIb-OurWxbNQ6ywGRopQngc"
    //     },
    //     "is_downloadable": true,
    //     "property_groups": [
    //       {
    //         "template_id": "ptid:1a5n2i6d3OYEAAAAAAAAAYa",
    //         "fields": [
    //           {
    //             "name": "Security Policy",
    //             "value": "Confidential"
    //           }
    //         ]
    //       }
    //     ],
    //     "has_explicit_shared_members": false,
    //     "content_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
    //   },
    //   "link": "https://dl.dropboxusercontent.com/apitl/1/YXNkZmFzZGcyMzQyMzI0NjU2NDU2NDU2"
    // }

    // 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.

    metadataName = CkJsonObject_stringOf(jResp,"metadata.name");
    metadataId = CkJsonObject_stringOf(jResp,"metadata.id");
    metadataClient_modified = CkJsonObject_stringOf(jResp,"metadata.client_modified");
    metadataServer_modified = CkJsonObject_stringOf(jResp,"metadata.server_modified");
    metadataRev = CkJsonObject_stringOf(jResp,"metadata.rev");
    metadataSize = CkJsonObject_IntOf(jResp,"metadata.size");
    metadataPath_lower = CkJsonObject_stringOf(jResp,"metadata.path_lower");
    metadataPath_display = CkJsonObject_stringOf(jResp,"metadata.path_display");
    metadataSharing_infoRead_only = CkJsonObject_BoolOf(jResp,"metadata.sharing_info.read_only");
    metadataSharing_infoParent_shared_folder_id = CkJsonObject_stringOf(jResp,"metadata.sharing_info.parent_shared_folder_id");
    metadataSharing_infoModified_by = CkJsonObject_stringOf(jResp,"metadata.sharing_info.modified_by");
    metadataIs_downloadable = CkJsonObject_BoolOf(jResp,"metadata.is_downloadable");
    metadataHas_explicit_shared_members = CkJsonObject_BoolOf(jResp,"metadata.has_explicit_shared_members");
    metadataContent_hash = CkJsonObject_stringOf(jResp,"metadata.content_hash");
    link = CkJsonObject_stringOf(jResp,"link");
    i = 0;
    count_i = CkJsonObject_SizeOfArray(jResp,"metadata.property_groups");
    while (i < count_i) {
        CkJsonObject_putI(jResp,i);
        template_id = CkJsonObject_stringOf(jResp,"metadata.property_groups[i].template_id");
        j = 0;
        count_j = CkJsonObject_SizeOfArray(jResp,"metadata.property_groups[i].fields");
        while (j < count_j) {
            CkJsonObject_putJ(jResp,j);
            name = CkJsonObject_stringOf(jResp,"metadata.property_groups[i].fields[j].name");
            value = CkJsonObject_stringOf(jResp,"metadata.property_groups[i].fields[j].value");
            j = j + 1;
        }

        i = i + 1;
    }



    CkHttp_Dispose(http);
    CkJsonObject_Dispose(json);
    CkStringBuilder_Dispose(sbResponseBody);
    CkJsonObject_Dispose(jResp);

    }