how to post base64encoded image to server using swift 3? - ios

Question

Here I have to post base64encoded image to server. Below is my code which I am using:
func post_request_image(api:String){
if (imageview.image == nil)
{
return
}
let image_data = UIImageJPEGRepresentation(imageview.image!, 1.0)
if(image_data == nil)
{
return
}
loader.showLoadingAlert(view: self.view, title: "")
var web_apis_3 = api
// print(web_apis_3)
var request = URLRequest(url: URL(string: web_apis_3)!)
request.httpMethod = "POST"
do {
request.httpBody =
image_data?.base64EncodedString()
} catch let error {
print(error.localizedDescription)
}
// let content = String(data: json!, encoding:
String.Encoding.utf8)
request.addValue("application/json", forHTTPHeaderField: "Content-Type")
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil else {
print("error=\(error)")
return
}
if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200 { // check for http errors
print("statusCode should be 200, but is \(httpStatus.statusCode)")
print("response = \(response)")
}
}
But it is giving me this error:
cannot assign value of type String to type Data
How can I resolve this?

Answer 1

if the server expects a string:
let image = UIImage(named: "sample")
guard let imgData = UIImagePNGRepresentation(image) else { return }
let base64String = imgData.base64EncodedString(options: .lineLength64Characters)
then submit base64String to the server in whatever way is needed.
for me I needed to submit:
let parameters: [String: String] = [
"image": base64String
]
since youre needing data, you should be able to submit imgData