Github Actions custom deployment protection rule approval not working

[juicemia]

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Hello,

I'm following the documentation here for creating a webhook server that will handle approvals/rejections of deployments in an environment.

I have my code in this gist. It's very messy I'm just trying to get a basic POC running locally using ngrok.

I'm stuck on actually making the approval. It's failing on the POST request to https://api.github.com/repos/ORG/REPO/actions/runs/RUN_ID/deployment_protection_rule. I'm getting the following response:

{"message":"No pending custom deployment requests in workflow run `RUN_ID` to approve or reject","documentation_url":"https://docs.github.com/rest/actions/workflow-runs#review-custom-deployment-protection-rules-for-a-workflow-run","status":"422"}

This is for a private repo, but we have Github Enterprise so according to the docs here we should have access to all the forms of protection rules on our private repos.

It seems like the whole flow works even though the repos are private. The webhook is firing the way I expect, I just can't figure out why this last part is failing.

I'm suspecting it might be a permissions issue due to a discrepancy between the docs (which are probably geared towards public repositories) and my private repo. I see the following permissions on my installation token:

  "permissions": { "deployments": "write", "metadata": "read" },

I see that the installation token is being granted access to the right repository. I'm thinking maybe there's a missing permission so when the request is made, it can't see the protection rule even though I can see it in the UI.

UPDATE

I ported over the code to JavaScript seeing as how this webhook would be implemented in a NextJS app anyways. I have everything set up and I'm getting the same error. This is the webhook code:

interface WebhookPayload {
  deployment_callback_url: string;
  deployment: {
    environment: string;
  };
  installation: {
    id: number;
  };
  repository: {
    id: number;
    name: string;
    owner: {
      login: string;
    };
  };
}

export const POST = async (request: NextRequest): Promise<NextResponse> => {
  // TODO: verify header with HMAC(buf, secretToken)

  const payload: WebhookPayload = await request.json();

  const token = jwt.sign(
    {
      iss: "client id",
    },
    jwt_signing_key,
    { algorithm: "RS256", expiresIn: "5 minutes" }
  );

  const octokit = new Octokit({
    auth: token,
  });

  const installation_token = await octokit.rest.apps
    .createInstallationAccessToken({
      installation_id: payload.installation.id,
      repository_ids: [payload.repository.id],
      permissions: {
        deployments: "write",
      },
    })
    .then((resp) => {
      return resp.data.token;
    })
    .catch((e) => {
      console.error(
        `unable to get installation token for installation: ${payload.installation.id}, repository: ${payload.repository.id}`,
        e
      );

      throw e;
    });

  const path = payload.deployment_callback_url.slice(
    "https://api.github.com".length
  );

  const appOctokit = new Octokit({ auth: installation_token });

  await appOctokit.rest.actions.reviewCustomGatesForRun({
    environment_name: payload.deployment.environment,
    owner: payload.repository.owner.login,
    repo: payload.repository.name,
    run_id: parseInt(path.split("/").slice(-2, -1)[0]),
    state: "approved",
  });

  return new NextResponse(null, { status: 200 });
};

This is the error object getting logged:

{
  status: 422,
  request: {
    method: 'POST',
    url: 'https://api.github.com/repos/OWNER/REPO/actions/runs/RUN_ID/deployment_protection_rule',
    headers: {
      accept: 'application/vnd.github.v3+json',
      'user-agent': 'octokit-rest.js/21.0.1 octokit-core.js/6.1.2 Node.js/20.18.0 (darwin; arm64)',
      authorization: 'token [REDACTED]',
      'content-type': 'application/json; charset=utf-8'
    },
    body: [Object: null prototype] {
      environment_name: 'production',
      state: 'approved'
    },
    request: { hook: [Function: bound bound register] }
  },
  response: {
    url: 'https://api.github.com/repos/OWNER/REPO/actions/runs/RUN_ID/deployment_protection_rule',
    status: 422,
    headers: {
      'access-control-allow-origin': '*',
      'access-control-expose-headers': 'ETag, Link, Location, Retry-After, X-GitHub-OTP, X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Used, X-RateLimit-Resource, X-RateLimit-Reset, X-OAuth-Scopes, X-Accepted-OAuth-Scopes, X-Poll-Interval, X-GitHub-Media-Type, X-GitHub-SSO, X-GitHub-Request-Id, Deprecation, Sunset',
      'content-length': '251',
      'content-security-policy': "default-src 'none'",
      'content-type': 'application/json; charset=utf-8',
      date: 'Mon, 18 Nov 2024 15:55:02 GMT',
      'referrer-policy': 'origin-when-cross-origin, strict-origin-when-cross-origin',
      server: 'github.com',
      'strict-transport-security': 'max-age=31536000; includeSubdomains; preload',
      vary: 'Accept-Encoding, Accept, X-Requested-With',
      'x-accepted-github-permissions': 'deployments=write',
      'x-content-type-options': 'nosniff',
      'x-frame-options': 'deny',
      'x-github-api-version-selected': '2022-11-28',
      'x-github-media-type': 'github.v3; format=json',
      'x-github-request-id': 'E1EF:2961A2:29E88F:52312F:673B6356',
      'x-ratelimit-limit': '15000',
      'x-ratelimit-remaining': '14999',
      'x-ratelimit-reset': '1731948902',
      'x-ratelimit-resource': 'core',
      'x-ratelimit-used': '1',
      'x-xss-protection': '0'
    },
    data: {
      message: 'No pending custom deployment requests in workflow run `RUN_ID` to approve or reject',
      documentation_url: 'https://docs.github.com/rest/actions/workflow-runs#review-custom-deployment-protection-rules-for-a-workflow-run',
      status: '422'
    }
  }
}

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