Add deployment id endpoint in V2

v2/CHANGELOG.md

@@ -1,6 +1,7 @@
 # Change Log
 
 ## [master](https://github.com/arangodb/go-driver/tree/master) (N/A)
+- Add endpoint to fetch deployment id
 
 ## [2.1.6](https://github.com/arangodb/go-driver/tree/v2.1.6) (2025-11-06)
 - Add missing endpoints from replication

v2/arangodb/client_admin.go

@@ -93,6 +93,9 @@ type ClientAdmin interface {
 	// ReloadJWTSecrets forces the server to reload the JWT secrets from disk.
 	// Requires a superuser JWT for authorization.
 	ReloadJWTSecrets(ctx context.Context) (JWTSecretsResult, error)
+
+	// GetDeploymentId retrieves the unique deployment ID for the ArangoDB deployment.
+	GetDeploymentId(ctx context.Context) (DeploymentIdResponse, error)
 }
 
 type ClientAdminLog interface {
@@ -607,3 +610,8 @@ type JWTSecretsResult struct {
 type JWTSecret struct {
 	SHA256 *string `json:"sha256,omitempty"` // SHA-256 hash of the JWT secret
 }
+
+type DeploymentIdResponse struct {
+	// Id represents the unique deployment identifier
+	Id *string `json:"id"`
+}

v2/arangodb/client_admin_impl.go

@@ -490,3 +490,25 @@ func (c *clientAdmin) ReloadJWTSecrets(ctx context.Context) (JWTSecretsResult, e
 		return JWTSecretsResult{}, response.AsArangoErrorWithCode(code)
 	}
 }
+
+// GetDeploymentId retrieves the unique deployment ID for the ArangoDB deployment.
+func (c *clientAdmin) GetDeploymentId(ctx context.Context) (DeploymentIdResponse, error) {
+	url := connection.NewUrl("_admin", "deployment", "id")
+
+	var response struct {
+		shared.ResponseStruct `json:",inline"`
+		DeploymentIdResponse  `json:",inline"`
+	}
+
+	resp, err := connection.CallGet(ctx, c.client.connection, url, &response)
+	if err != nil {
+		return DeploymentIdResponse{}, errors.WithStack(err)
+	}
+
+	switch code := resp.Code(); code {
+	case http.StatusOK:
+		return response.DeploymentIdResponse, nil
+	default:
+		return DeploymentIdResponse{}, response.AsArangoErrorWithCode(code)
+	}
+}

v2/tests/admin_test.go

@@ -590,3 +590,40 @@ func Test_HandleAdminVersion(t *testing.T) {
 		})
 	})
 }
+
+// Test_GetDeploymentId verifies that the deployment ID can be retrieved successfully.
+func Test_GetDeploymentId(t *testing.T) {
+	Wrap(t, func(t *testing.T, client arangodb.Client) {
+		t.Run("Success case", func(t *testing.T) {
+			withContextT(t, time.Minute, func(ctx context.Context, t testing.TB) {
+				version := skipBelowVersion(client, ctx, "3.12.6", t)
+				t.Logf("Current Version %s", version.Version)
+
+				resp, err := client.GetDeploymentId(ctx)
+				require.NoError(t, err)
+				require.NotNil(t, resp.Id)
+
+				// Verify ID format (assuming it's UUID-like)
+				require.Regexp(t, `^[a-zA-Z0-9\-]+$`, *resp.Id, "Deployment ID should be alphanumeric with hyphens")
+			})
+		})
+
+		t.Run("Multiple calls consistency", func(t *testing.T) {
+			withContextT(t, time.Minute, func(ctx context.Context, t testing.TB) {
+				version := skipBelowVersion(client, ctx, "3.12.6", t)
+				t.Logf("Current Version %s", version.Version)
+
+				resp1, err := client.GetDeploymentId(ctx)
+				require.NoError(t, err)
+				require.NotNil(t, resp1.Id)
+
+				resp2, err := client.GetDeploymentId(ctx)
+				require.NoError(t, err)
+				require.NotNil(t, resp2.Id)
+
+				// IDs should be consistent across calls
+				require.Equal(t, *resp1.Id, *resp2.Id, "Deployment ID should be consistent across calls")
+			})
+		})
+	})
+}