I would like to use the discog API in order to get informations on music albums and the cover Image of the album.
The program I wrote handles the API correctly for fetching the String datas, but I have a problem with loading the Images from the URL provided in the JSON sent back by the Discog API:
The URL works fine in a browser but the server returns a 403 error when I try to load the image with processing using the same URL.
I asked for help in the Discop API forum, and I have been answered that the problem probably comes from the fact that I don’t send the necessary informations (Authorization and User-Agent) in headers when trying to load the image.
I know what to send in the headers but after searching for a while, I have not found any obvious solution for sending headers with loadImage() or requestImage(), or a library that could do the job. Now I am really stuck with that…
Does someone knows how to do this with processing?
I don’t understand what means checking where the images are. How can I do that with the URL I have?
Even trying to “cut” this URL - for example “https://img.discogs.com/UoDAnoi3Cbp_JvOrz4CRgZBBSfg=/fit-in/600x592/” this gives no results neither with a browser nor with processing.
However using GetRequest again with the URL gave something: A very long gibberish String that I can’t use as is but this is a step forward!
Do you think this String could be the image itself?
I recorded it in a .txt file here if you want to have a look. I tried to convert it to image with some online tools but did not manage to get an image.
If it is the image and if it is possible to convert it, is there a way to do that with processing?
Hey @Glenton I dont know if this helps:
Its a little class which downloads an Image and then loads it via loadImage() from processing
Click to see the my Example
String URL = "https://img.discogs.com/UoDAnoi3Cbp_JvOrz4CRgZBBSfg=/fit-in/600x592/filters:strip_icc():format(jpeg):mode_rgb():quality(90)/discogs-images/R-367084-1263095553.jpeg.jpg";
PImage img;
void setup() {
size(100, 100);
//img = requestImage(URL);//not working
//img = loadImage(URL);//not working
DownloadImage downImg = new DownloadImage(this);
img = downImg.load(URL, sketchPath("test.png"));
if (img == null) {
println("Error");
return;
}
println("Image loaded");
surface.setSize(img.width, img.height);
}
void draw() {
background(0);
if (img == null) return;
image(img, 0, 0);
}
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLConnection;
public class DownloadImage {
PApplet parent;
public DownloadImage(PApplet parent) {
this.parent = parent;
}
public PImage load(String search, String path) {
// This will get input data from the server
InputStream inputStream = null;
// This will read the data from the server;
OutputStream outputStream = null;
try {
// This will open a socket from client to server
URL url = new URL(search);
// This user agent is for if the server wants real humans to visit
String USER_AGENT = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36";
// This socket type will allow to set user_agent
URLConnection con = url.openConnection();
// Setting the user agent
con.setRequestProperty("User-Agent", USER_AGENT);
// Requesting input data from server
inputStream = con.getInputStream();
// Open local file writer
outputStream = new FileOutputStream(path);
// Limiting byte written to file per loop
byte[] buffer = new byte[2048];
// Increments file size
int length;
// Looping until server finishes
while ((length = inputStream.read(buffer)) != -1) {
// Writing data
outputStream.write(buffer, 0, length);
}
}
catch (Exception ex) {
ex.printStackTrace();
}
// closing used resources
// The computer will not be able to use the image
// This is a must
try {
outputStream.close();
inputStream.close();
}
catch (IOException e) {
e.printStackTrace();
}
PImage img = parent.loadImage(path);
return img;
}
}
Yes Floflo, this helps. You just totally solved my problem!
Thank you a lot! I have been stuck for a while on this…
I am just a processing user, I don’t really know Java.
I wish I could understand how your class works, especially what is this PApplet parent object and how it gets the image data with inputStream, outputStream an the buffer…
But I will dig on this later.
:format(jpeg):mode_rgb():quality(90)/discogs-images/R-367084-1263095553.jpeg.jpg){kind=link}
