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

Chilkat.Http http = new Chilkat.Http();
bool success;

// 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"
// }

Chilkat.JsonObject json = new Chilkat.JsonObject();
json.UpdateString("path","/video.mp4");

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

Chilkat.HttpResponse resp = http.PostJson3("https://api.dropboxapi.com/2/files/get_temporary_link","application/json",json);
if (http.LastMethodSuccess == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Chilkat.StringBuilder sbResponseBody = new Chilkat.StringBuilder();
resp.GetBodySb(sbResponseBody);
Chilkat.JsonObject jResp = new Chilkat.JsonObject();
jResp.LoadSb(sbResponseBody);
jResp.EmitCompact = false;

Debug.WriteLine("Response Body:");
Debug.WriteLine(jResp.Emit());

int respStatusCode = resp.StatusCode;
Debug.WriteLine("Response Status Code = " + Convert.ToString(respStatusCode));
if (respStatusCode >= 400) {
    Debug.WriteLine("Response Header:");
    Debug.WriteLine(resp.Header);
    Debug.WriteLine("Failed.");

    return;
}

// 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

string template_id;
int j;
int count_j;
string name;
string value;

string metadataName = jResp.StringOf("metadata.name");
string metadataId = jResp.StringOf("metadata.id");
string metadataClient_modified = jResp.StringOf("metadata.client_modified");
string metadataServer_modified = jResp.StringOf("metadata.server_modified");
string metadataRev = jResp.StringOf("metadata.rev");
int metadataSize = jResp.IntOf("metadata.size");
string metadataPath_lower = jResp.StringOf("metadata.path_lower");
string metadataPath_display = jResp.StringOf("metadata.path_display");
bool metadataSharing_infoRead_only = jResp.BoolOf("metadata.sharing_info.read_only");
string metadataSharing_infoParent_shared_folder_id = jResp.StringOf("metadata.sharing_info.parent_shared_folder_id");
string metadataSharing_infoModified_by = jResp.StringOf("metadata.sharing_info.modified_by");
bool metadataIs_downloadable = jResp.BoolOf("metadata.is_downloadable");
bool metadataHas_explicit_shared_members = jResp.BoolOf("metadata.has_explicit_shared_members");
string metadataContent_hash = jResp.StringOf("metadata.content_hash");
string link = jResp.StringOf("link");
int i = 0;
int count_i = jResp.SizeOfArray("metadata.property_groups");
while (i < count_i) {
    jResp.I = i;
    template_id = jResp.StringOf("metadata.property_groups[i].template_id");
    j = 0;
    count_j = jResp.SizeOfArray("metadata.property_groups[i].fields");
    while (j < count_j) {
        jResp.J = j;
        name = jResp.StringOf("metadata.property_groups[i].fields[j].name");
        value = jResp.StringOf("metadata.property_groups[i].fields[j].value");
        j = j + 1;
    }

    i = i + 1;
}