CurseForge Uploader

An action for interacting with the CurseForge file upload API

Usage/Arguments

Name	Description	Default Value	Required
token	Token used to authenticate with CurseForge API. Use a repository secret for this.	N/A	✅
project_id	Project id (numerical) to upload file to. You can get the numerical ID from the sidebar on a project page.	N/A	✅
game_endpoint	The game subdomain of curseforge.com where the upload request will be made. (minecraft, bukkit, kerbal, etc.)	N/A	✅
file_path	The path to the file you want to upload.	N/A	✅
game_versions	The game version IDs to select on this file. Separate IDs with commas. See README for more info.	[]	❌
release_type	The type of this release. Allowed values: alpha, beta, release.	release	❌
display_name	The display name for this file.	Filename	❌
changelog	The changelog text to put on the file.		❌
changelog_type	The type of the changelog. Allowed values: text, html (aka. WYSIWYG), markdown.	markdown	❌
relations	List of projects this file is related to and their relation type. Separate with commas. Format: projectslug:relationType (slug is found in project URL) - Valid relationTypes are: embeddedLibrary, incompatible, optionalDependency, requiredDependency, and tool	[]	❌
parent_file_id	The id of the parent file to put this file under. (File IDs are integers, found in the URL)	None	❌

Example Workflow

name: "Build Release"
on: push
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - { uses: actions/checkout@v2, with: { fetch-depth: 0 } }
      - {
          name: "Set up JDK 17",
          uses: actions/setup-java@v2,
          with: { distribution: "adopt", java-version: "17" },
        }
      - {
          name: "Build with Gradle",
          id: build,
          run: "chmod +x gradlew && ./gradlew build publish",
        }
      - name: "Upload to CurseForge"
        uses: itsmeow/curseforge-upload@v3
        with:
          file_path: "build/libs/examplemod-${{ steps.build.outputs.version }}.jar"
          game_endpoint: "minecraft"
          relations: "fabric-api:requiredDependency"
          game_versions: "Minecraft 1.18:1.18.1,Java 17,Fabric"
          project_id: "0"
          token: "${{ secrets.CF_API_TOKEN }}"

In this example, a file is uploaded with no custom title to project ID 0 in the Minecraft game category, with a dependency on Fabric API and game versions 1.18.1, Java 17, and Fabric loader.

The version in the filepath is not exported by default, so you can add this block to your buildscript to do so (this requires the Ubuntu runner):

exec {
    commandLine "echo", "##[set-output name=version;]${project.version}";
}

Getting an API token

Obtain them here: https://www.curseforge.com/account/api-tokens

Add the token to your repository's secrets tab to use it, found under Settings.

Game Version IDs Explained

You MUST namespace Minecraft version IDs as there are duplicates in the system for Bukkit.

API Method

You can use numerical IDs by making a request to and picking your versions from this API:

https://endpoint.curseforge.com/api/game/versions?token=your_token

Using this method is more efficient request wise, as otherwise the Action will have to search this API before requesting the upload.

Inspect Element Method

Another method is using Inspect Element on the game version check boxes, the value field contains the version ID.

Convenience Method

However, this is not always convenient. You can also use names and slugs from that API, for example: "1.12.2" and "Java 8" will be automatically parsed into the proper id.

You may encounter issues with names/slugs that have multiple entries with different game version types. The minecraft endpoint has "1.12" 5 separate times with different game version types for Bukkit, Minecraft 1.12, etc. To fix this, you can prefix a game version with a Type's ID, slug, or name. For example "Minecraft 1.12:1.12" would get you ONLY the Minecraft 1.12 version and not the 4 others.

Another example is "java:Java 8". This filters to anything named "Java 8" with the type matching the slug/name "java".

You can get a list of game version type IDs from this API:

https://endpoint.curseforge.com/api/game/version-types?token=your_token