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Java DiscordWebhook class to easily execute Discord Webhooks
import javax.net.ssl.HttpsURLConnection;
import java.awt.Color;
import java.io.IOException;
import java.io.OutputStream;
import java.lang.reflect.Array;
import java.net.URL;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* Class used to execute Discord Webhooks with low effort
*/
public class DiscordWebhook {
private final String url;
private String content;
private String username;
private String avatarUrl;
private boolean tts;
private List<EmbedObject> embeds = new ArrayList<>();
/**
* Constructs a new DiscordWebhook instance
*
* @param url The webhook URL obtained in Discord
*/
public DiscordWebhook(String url) {
this.url = url;
}
public void setContent(String content) {
this.content = content;
}
public void setUsername(String username) {
this.username = username;
}
public void setAvatarUrl(String avatarUrl) {
this.avatarUrl = avatarUrl;
}
public void setTts(boolean tts) {
this.tts = tts;
}
public void addEmbed(EmbedObject embed) {
this.embeds.add(embed);
}
public void execute() throws IOException {
if (this.content == null && this.embeds.isEmpty()) {
throw new IllegalArgumentException("Set content or add at least one EmbedObject");
}
JSONObject json = new JSONObject();
json.put("content", this.content);
json.put("username", this.username);
json.put("avatar_url", this.avatarUrl);
json.put("tts", this.tts);
if (!this.embeds.isEmpty()) {
List<JSONObject> embedObjects = new ArrayList<>();
for (EmbedObject embed : this.embeds) {
JSONObject jsonEmbed = new JSONObject();
jsonEmbed.put("title", embed.getTitle());
jsonEmbed.put("description", embed.getDescription());
jsonEmbed.put("url", embed.getUrl());
if (embed.getColor() != null) {
Color color = embed.getColor();
int rgb = color.getRed();
rgb = (rgb << 8) + color.getGreen();
rgb = (rgb << 8) + color.getBlue();
jsonEmbed.put("color", rgb);
}
EmbedObject.Footer footer = embed.getFooter();
EmbedObject.Image image = embed.getImage();
EmbedObject.Thumbnail thumbnail = embed.getThumbnail();
EmbedObject.Author author = embed.getAuthor();
List<EmbedObject.Field> fields = embed.getFields();
if (footer != null) {
JSONObject jsonFooter = new JSONObject();
jsonFooter.put("text", footer.getText());
jsonFooter.put("icon_url", footer.getIconUrl());
jsonEmbed.put("footer", jsonFooter);
}
if (image != null) {
JSONObject jsonImage = new JSONObject();
jsonImage.put("url", image.getUrl());
jsonEmbed.put("image", jsonImage);
}
if (thumbnail != null) {
JSONObject jsonThumbnail = new JSONObject();
jsonThumbnail.put("url", thumbnail.getUrl());
jsonEmbed.put("thumbnail", jsonThumbnail);
}
if (author != null) {
JSONObject jsonAuthor = new JSONObject();
jsonAuthor.put("name", author.getName());
jsonAuthor.put("url", author.getUrl());
jsonAuthor.put("icon_url", author.getIconUrl());
jsonEmbed.put("author", jsonAuthor);
}
List<JSONObject> jsonFields = new ArrayList<>();
for (EmbedObject.Field field : fields) {
JSONObject jsonField = new JSONObject();
jsonField.put("name", field.getName());
jsonField.put("value", field.getValue());
jsonField.put("inline", field.isInline());
jsonFields.add(jsonField);
}
jsonEmbed.put("fields", jsonFields.toArray());
embedObjects.add(jsonEmbed);
}
json.put("embeds", embedObjects.toArray());
}
URL url = new URL(this.url);
HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
connection.addRequestProperty("Content-Type", "application/json");
connection.addRequestProperty("User-Agent", "Java-DiscordWebhook-BY-Gelox_");
connection.setDoOutput(true);
connection.setRequestMethod("POST");
OutputStream stream = connection.getOutputStream();
stream.write(json.toString().getBytes());
stream.flush();
stream.close();
connection.getInputStream().close(); //I'm not sure why but it doesn't work without getting the InputStream
connection.disconnect();
}
public static class EmbedObject {
private String title;
private String description;
private String url;
private Color color;
private Footer footer;
private Thumbnail thumbnail;
private Image image;
private Author author;
private List<Field> fields = new ArrayList<>();
public String getTitle() {
return title;
}
public String getDescription() {
return description;
}
public String getUrl() {
return url;
}
public Color getColor() {
return color;
}
public Footer getFooter() {
return footer;
}
public Thumbnail getThumbnail() {
return thumbnail;
}
public Image getImage() {
return image;
}
public Author getAuthor() {
return author;
}
public List<Field> getFields() {
return fields;
}
public EmbedObject setTitle(String title) {
this.title = title;
return this;
}
public EmbedObject setDescription(String description) {
this.description = description;
return this;
}
public EmbedObject setUrl(String url) {
this.url = url;
return this;
}
public EmbedObject setColor(Color color) {
this.color = color;
return this;
}
public EmbedObject setFooter(String text, String icon) {
this.footer = new Footer(text, icon);
return this;
}
public EmbedObject setThumbnail(String url) {
this.thumbnail = new Thumbnail(url);
return this;
}
public EmbedObject setImage(String url) {
this.image = new Image(url);
return this;
}
public EmbedObject setAuthor(String name, String url, String icon) {
this.author = new Author(name, url, icon);
return this;
}
public EmbedObject addField(String name, String value, boolean inline) {
this.fields.add(new Field(name, value, inline));
return this;
}
private class Footer {
private String text;
private String iconUrl;
private Footer(String text, String iconUrl) {
this.text = text;
this.iconUrl = iconUrl;
}
private String getText() {
return text;
}
private String getIconUrl() {
return iconUrl;
}
}
private class Thumbnail {
private String url;
private Thumbnail(String url) {
this.url = url;
}
private String getUrl() {
return url;
}
}
private class Image {
private String url;
private Image(String url) {
this.url = url;
}
private String getUrl() {
return url;
}
}
private class Author {
private String name;
private String url;
private String iconUrl;
private Author(String name, String url, String iconUrl) {
this.name = name;
this.url = url;
this.iconUrl = iconUrl;
}
private String getName() {
return name;
}
private String getUrl() {
return url;
}
private String getIconUrl() {
return iconUrl;
}
}
private class Field {
private String name;
private String value;
private boolean inline;
private Field(String name, String value, boolean inline) {
this.name = name;
this.value = value;
this.inline = inline;
}
private String getName() {
return name;
}
private String getValue() {
return value;
}
private boolean isInline() {
return inline;
}
}
}
private class JSONObject {
private final HashMap<String, Object> map = new HashMap<>();
void put(String key, Object value) {
if (value != null) {
map.put(key, value);
}
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
Set<Map.Entry<String, Object>> entrySet = map.entrySet();
builder.append("{");
int i = 0;
for (Map.Entry<String, Object> entry : entrySet) {
Object val = entry.getValue();
builder.append(quote(entry.getKey())).append(":");
if (val instanceof String) {
builder.append(quote(String.valueOf(val)));
} else if (val instanceof Integer) {
builder.append(Integer.valueOf(String.valueOf(val)));
} else if (val instanceof Boolean) {
builder.append(val);
} else if (val instanceof JSONObject) {
builder.append(val.toString());
} else if (val.getClass().isArray()) {
builder.append("[");
int len = Array.getLength(val);
for (int j = 0; j < len; j++) {
builder.append(Array.get(val, j).toString()).append(j != len - 1 ? "," : "");
}
builder.append("]");
}
builder.append(++i == entrySet.size() ? "}" : ",");
}
return builder.toString();
}
private String quote(String string) {
return "\"" + string + "\"";
}
}
}
@Pocanistaken
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Pocanistaken commented Jul 15, 2022

Continuing from above comment It's now line 150, and change it to

stream.write(json.toString().getBytes(StandardCharsets.UTF_8));

Done but still got 404 Error

@OmenDoesStuff
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OmenDoesStuff commented Sep 6, 2022

Continuing from above comment It's now line 150, and change it to

stream.write(json.toString().getBytes(StandardCharsets.UTF_8));

did this, still getting the same issue.
but now on connection.getInputStream().close();?

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