(Objective-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

Chilkat Objective-C Library Downloads MAC OS X (Cocoa) Libs iOS Libs

#import <CkoHttp.h>
#import <CkoJsonObject.h>
#import <CkoHttpResponse.h>
#import <CkoStringBuilder.h>
#import <NSString.h>

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

CkoHttp *http = [[CkoHttp alloc] init];
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"
// }

CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json UpdateString: @"path" value: @"/video.mp4"];

[http SetRequestHeader: @"Authorization" value: @"Bearer DROPBOX_ACCESS_TOKEN"];
[http SetRequestHeader: @"Content-Type" value: @"application/json"];

CkoHttpResponse *resp = [http PostJson3: @"https://api.dropboxapi.com/2/files/get_temporary_link" contentType: @"application/json" json: json];
if (http.LastMethodSuccess == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

CkoStringBuilder *sbResponseBody = [[CkoStringBuilder alloc] init];
[resp GetBodySb: sbResponseBody];
CkoJsonObject *jResp = [[CkoJsonObject alloc] init];
[jResp LoadSb: sbResponseBody];
jResp.EmitCompact = NO;

NSLog(@"%@",@"Response Body:");
NSLog(@"%@",[jResp Emit]);

int respStatusCode = [resp.StatusCode intValue];
NSLog(@"%@%d",@"Response Status Code = ",respStatusCode);
if (respStatusCode >= 400) {
    NSLog(@"%@",@"Response Header:");
    NSLog(@"%@",resp.Header);
    NSLog(@"%@",@"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

NSString *template_id = 0;
int j;
int count_j;
NSString *name = 0;
NSString *value = 0;

NSString *metadataName = [jResp StringOf: @"metadata.name"];
NSString *metadataId = [jResp StringOf: @"metadata.id"];
NSString *metadataClient_modified = [jResp StringOf: @"metadata.client_modified"];
NSString *metadataServer_modified = [jResp StringOf: @"metadata.server_modified"];
NSString *metadataRev = [jResp StringOf: @"metadata.rev"];
int metadataSize = [[jResp IntOf: @"metadata.size"] intValue];
NSString *metadataPath_lower = [jResp StringOf: @"metadata.path_lower"];
NSString *metadataPath_display = [jResp StringOf: @"metadata.path_display"];
BOOL metadataSharing_infoRead_only = [jResp BoolOf: @"metadata.sharing_info.read_only"];
NSString *metadataSharing_infoParent_shared_folder_id = [jResp StringOf: @"metadata.sharing_info.parent_shared_folder_id"];
NSString *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"];
NSString *metadataContent_hash = [jResp StringOf: @"metadata.content_hash"];
NSString *link = [jResp StringOf: @"link"];
int i = 0;
int count_i = [[jResp SizeOfArray: @"metadata.property_groups"] intValue];
while (i < count_i) {
    jResp.I = [NSNumber numberWithInt: i];
    template_id = [jResp StringOf: @"metadata.property_groups[i].template_id"];
    j = 0;
    count_j = [[jResp SizeOfArray: @"metadata.property_groups[i].fields"] intValue];
    while (j < count_j) {
        jResp.J = [NSNumber numberWithInt: 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;
}