Objective-C Requires Chilkat v11.0.0+

WhatsApp - Upload Media

Demonstrates how to upload media to the WhatsApp Business API client. The POST body must contain the binary media data and the Content-Type header must be set to the type of the media being uploaded. Objective-C

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

BOOL success = NO;

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

CkoHttp *http = [[CkoHttp alloc] init];

//  Implements the following CURL command:

//  curl -X POST \
//  https://your-webapp-hostname:your-webapp-port/v1/media \
//  -H 'Authorization: Bearer your-auth-token' \ 
//  -H 'Content-Type: image/jpeg'
//  --data-binary @your-file-path

//  Use the following online tool to generate HTTP code from a CURL command
//  Convert a cURL Command to HTTP Source Code

CkoBinData *bdRequestBody = [[CkoBinData alloc] init];
success = [bdRequestBody LoadFile: @"your-file-path"];
if (success != YES) {
    NSLog(@"%@",@"Failed to load your-file-path");
    return;
}

//  Adds the "Authorization: Bearer your-auth-token" header.
http.AuthToken = @"your-auth-token";

CkoHttpResponse *resp = [[CkoHttpResponse alloc] init];
success = [http HttpBd: @"POST" url: @"https://your-webapp-hostname:your-webapp-port/v1/media" bd: bdRequestBody contentType: @"image/jpeg" response: resp];
if (success == 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)

//  {
//    "messages": [
//      {
//        "id": "gBEGkYiEB1VXAglK1ZEqA1YKPrU"
//      }
//    ]
//  }

//  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 *id = 0;

int i = 0;
int count_i = [[jResp SizeOfArray: @"messages"] intValue];
while (i < count_i) {
    jResp.I = [NSNumber numberWithInt: i];
    id = [jResp StringOf: @"messages[i].id"];
    i = i + 1;
}