cannot read dependency from GitHub packages

[sothawo]

Thanks for providing this, I just wanted to do a first test. Maybe I am missing something, but I don't get the dependency, I am getting an error about not being authorized:

$ ./gradlew classes
> Task :compileJava FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':compileJava'.
> Could not resolve all files for configuration ':compileClasspath'.
   > Could not resolve co.elastic.clients:elasticsearch-java:8.0.0-SNAPSHOT.
     Required by:
         project :
      > Could not resolve co.elastic.clients:elasticsearch-java:8.0.0-SNAPSHOT.
         > Unable to load Maven meta-data from https://maven.pkg.github.com/elastic/elasticsearch-java/co/elastic/clients/elasticsearch-java/8.0.0-SNAPSHOT/maven-metadata.xml.
            > Could not get resource 'https://maven.pkg.github.com/elastic/elasticsearch-java/co/elastic/clients/elasticsearch-java/8.0.0-SNAPSHOT/maven-metadata.xml'.
               > Could not GET 'https://maven.pkg.github.com/elastic/elasticsearch-java/co/elastic/clients/elasticsearch-java/8.0.0-SNAPSHOT/maven-metadata.xml'. Received status code 401 from server: Unauthorized

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 2s
1 actionable task: 1 executed

$  https maven.pkg.github.com/elastic/elasticsearch-java/co/elastic/clients/elasticsearch-java/8.0.0-SNAPSHOT/maven-metadata.xml                                                                             1 ↵
HTTP/1.1 401 Unauthorized
Access-Control-Allow-Origin: *
Content-Length: 0
Content-Security-Policy: default-src 'none';
Date: Thu, 03 Jun 2021 15:52:04 GMT
Server: GitHub Registry
Strict-Transport-Security: max-age=31536000;
X-Content-Type-Options: nosniff
X-Frame-Options: DENY
X-GitHub-Request-Id: FC2A:7EF3:13680D:168AD5:60B8FAA4
X-XSS-Protection: 1; mode=block
access-control-allow-methods: GET, HEAD, OPTIONS
www-authenticate: Basic realm="GitHub Package Registry"

My setup for gradle is as in the documentation, when I try to open the link to the metada file, my browser wants me to login as well.

[sothawo]

I was missing the token to be able to read packages from GitHub packages. I created a Personal Access Token (https://docs.github.com/en/github/authenticating-to-github/keeping-your-account-and-data-secure/creating-a-personal-access-token) that only has the read packages access defined.

After that I changed the gradle repository definition to:

repositories {
    mavenCentral()
    maven {
        name = "GitHubPackages"
        url = uri("https://maven.pkg.github.com/elastic/elasticsearch-java")
        credentials(PasswordCredentials)
    }
}

and added my username and the token as password to my ~/.gradle/gradle.properties file:

GitHubPackagesUsername=USERNAME
GitHubPackagesPassword=PERSONAL_ACCESS_TOKEN

Now it works

[swallez]

Oh, indeed GitHub requires a token even for read access. I've updated the README with additional instructions in 99e191d. Thanks!

[sothawo]

I suppose once the client is final, it will be available via maven central? Because otherwise everyone who is using Spring Data Elasticsearch would need to create a PAT.

[swallez]

Absolutely! We're working on it, as it has to be part of Elastic's "unified release process" that coordinates artifact construction and publication for all Elastic products.