grafana/public/app/features/explore/ErrorContainer.tsx

import React, { FunctionComponent } from 'react';
import { DataQueryError } from '@grafana/data';
import { Alert } from '@grafana/ui';
import { FadeIn } from 'app/core/components/Animations/FadeIn';

export interface ErrorContainerProps {
  queryError?: DataQueryError;
}

export const ErrorContainer: FunctionComponent<ErrorContainerProps> = (props) => {
  const { queryError } = props;
  const showError = queryError ? true : false;
  const duration = showError ? 100 : 10;
  const title = queryError ? 'Query error' : 'Unknown error';
  const message = queryError?.message || queryError?.data?.message || null;

  return (
    <FadeIn in={showError} duration={duration}>
      <Alert severity="error" title={title} topSpacing={2}>
        {message}
      </Alert>
    </FadeIn>
  );
};