Merge pull request #42 from dogboydog/embeds

Support 'embeds' parameter to discord API

README.md

@@ -61,6 +61,7 @@ e.g.: `Action called: {{ GITHUB_ACTION }} as {{ EVENT_PAYLOAD.pull_request.id }}
  * ***IMPORTANT !!* You MUST NOT append `/github` at the end of the webhook.**
 * **`DISCORD_USERNAME`** (*optional*): overrides the bot nickname.
 * **`DISCORD_AVATAR`** (*optional*): overrides the avatar URL.
+* **`DISCORD_EMBEDS`** (*optional*): This should be a valid JSON string of an array of Discord `embed` objects. See the [documentation on Discord WebHook Embeds](https://birdie0.github.io/discord-webhooks-guide/structure/embeds.html) for more information. You can use set it to `${{ toJson(my_value) }}` using [`toJson()`](https://docs.github.com/en/actions/reference/context-and-expression-syntax-for-github-actions#tojson) if your input is an object value.
 * That's all.
 
 ## Alternatives

entrypoint.js

@@ -31,18 +31,29 @@ _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
 let url;
 let payload;
 
-if (argv._.length === 0) {
- // If argument NOT provided, let Discord show the event informations.
+if (argv._.length === 0 && !process.env.DISCORD_EMBEDS) {
+ // If argument and embeds NOT provided, let Discord show the event informations.
  url = `${process.env.DISCORD_WEBHOOK}/github`;
  payload = JSON.stringify(JSON.parse(eventContent));
 } else {
- // Otherwise, if the argument is provided, let Discord override the message.
+ // Otherwise, if the argument or embeds are provided, let Discord override the message.
  const args = argv._.join(' ');
  const message = _.template(args)({ ...process.env, EVENT_PAYLOAD: JSON.parse(eventContent) });
 
+ let embedsObject;
+ if (process.env.DISCORD_EMBEDS) {
+ try {
+ embedsObject = JSON.parse(process.env.DISCORD_EMBEDS);
+ } catch (parseErr) {
+ console.error('Error parsing DISCORD_EMBEDS :' + parseErr);
+ process.exit(1);
+ }
+ }
+
  url = process.env.DISCORD_WEBHOOK;
  payload = JSON.stringify({
  content: message,
+ ...process.env.DISCORD_EMBEDS && { embeds: embedsObject },
  ...process.env.DISCORD_USERNAME && { username: process.env.DISCORD_USERNAME },
  ...process.env.DISCORD_AVATAR && { avatar_url: process.env.DISCORD_AVATAR },
  });