serverless/serverless · error · Error

Specify either endpoint or domain

Error message

Specify either endpoint or domain

What it means

Error "Specify either endpoint or domain" thrown in serverless/serverless.

Source

Thrown at packages/serverless/lib/plugins/aws/appsync/resources/DataSource.js:113

      EventBusArn: config.config.eventBusArn,
    }
  }

  getOpenSearchConfig(config) {
    const endpoint =
      config.config.endpoint ||
      (config.config.domain && {
        'Fn::Join': [
          '',
          [
            'https://',
            { 'Fn::GetAtt': [config.config.domain, 'DomainEndpoint'] },
          ],
        ],
      })
    // FIXME: can we validate this and make TS infer mutually eclusive types?
    if (!endpoint) {
      throw new Error('Specify either endpoint or domain')
    }
    return {
      AwsRegion: config.config.region || { Ref: 'AWS::Region' },
      Endpoint: endpoint,
    }
  }

  getRelationalDbConfig(config) {
    return {
      RdsHttpEndpointConfig: {
        AwsRegion: config.config.region || { Ref: 'AWS::Region' },
        DbClusterIdentifier: {
          'Fn::Join': [
            ':',
            [
              'arn',
              'aws',
              'rds',

View on GitHub (pinned to b9d7ea51c8)

Solutions

1. Set exactly one of endpoint or domain in the AppSync data source configuration.

When it happens

Trigger: Thrown at packages/serverless/lib/plugins/aws/appsync/resources/DataSource.js:113 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of serverless/serverless@b9d7ea51c8 (2026-08-13). Data as JSON: /api/errors/880d7e3e91c4ab41. Report an issue: GitHub.