How to use the pathifist.trimSlashes function in pathifist

'use strict';

process.env.NODE_ENV = 'production';

const serverlessHttp = require('serverless-http');
const config = require('hops-config');
const { trimSlashes } = require('pathifist');

const app = require('@untool/express').createServer('serve');

const awsConfig = require('./lib/aws-config')(config);

const shouldIncludeStageInRequest =
  trimSlashes(config.basePath).indexOf(awsConfig.stageName) === 0 &&
  trimSlashes(config.assetPath).indexOf(awsConfig.stageName) === 0;

// NOTE: If you get ERR_CONTENT_DECODING_FAILED in your browser, this is likely
// due to a compressed response (e.g. gzip) which has not been handled correctly
// by serverless-http and/or API Gateway. Add the necessary MIME types to
// binaryMimeTypes below, then redeploy.
const binaryMimeTypes = [
  'application/javascript',
  'application/json',
  'application/octet-stream',
  'application/xml',
  'font/eot',
  'font/opentype',
  'font/otf',
  'font/woff',
  'font/woff2',
  'image/jpeg',

'use strict';

process.env.NODE_ENV = 'production';

const serverlessHttp = require('serverless-http');
const config = require('hops-config');
const { trimSlashes } = require('pathifist');

const app = require('@untool/express').createServer('serve');

const awsConfig = require('./lib/aws-config')(config);

const shouldIncludeStageInRequest =
  trimSlashes(config.basePath).indexOf(awsConfig.stageName) === 0 &&
  trimSlashes(config.assetPath).indexOf(awsConfig.stageName) === 0;

// NOTE: If you get ERR_CONTENT_DECODING_FAILED in your browser, this is likely
// due to a compressed response (e.g. gzip) which has not been handled correctly
// by serverless-http and/or API Gateway. Add the necessary MIME types to
// binaryMimeTypes below, then redeploy.
const binaryMimeTypes = [
  'application/javascript',
  'application/json',
  'application/octet-stream',
  'application/xml',
  'font/eot',
  'font/opentype',
  'font/otf',
  'font/woff',
  'font/woff2',

const region =
    awsConfig.region ||
    process.env.AWS_REGION ||
    process.env.AWS_DEFAULT_REGION;

  const config = {
    region,
    stackName: awsConfig.uniqueName,
    bucketName: awsConfig.uniqueName,
    runtime: getRuntimeNodeVersion(nodeVersion),
    memorySize: awsConfig.memorySize,
    stageName: awsConfig.stageName,
    domainName: awsConfig.domainName || '',
    certificateArn: awsConfig.certificateArn || '',
    basePath: trimSlashes(hopsConfig.basePath) || '(none)',
    cloudformationTemplateFile: awsConfig.cloudformationTemplateFile,
    include: [...(awsConfig.include || [])],
    exclude: [...(awsConfig.exclude || [])],
  };

  return config;
};

if (!semver.intersects(targetNodeVersion, nodeVersionRange)) {
      warnings.push(
        [
          `AWS Lambda only supports the Node.js version range "${nodeVersionRange}".`,
          'Please specify or use a Node.js version intersecting this range',
          'in your Hops config (hops.node) to tell Babel for which version',
          'it should transpile for.',
        ].join('\n')
      );
    }

    if (
      !this.awsConfig.domainName &&
      this.awsConfig.basePath.indexOf(this.awsConfig.stageName) !== 0 &&
      trimSlashes(this.config.assetPath).indexOf(this.awsConfig.stageName) !== 0
    ) {
      warnings.push(
        `When no custom domain is configured, the stageName (${this.awsConfig.stageName}) should be the first path segment in basePath (${this.awsConfig.basePath}) and assetPath (${this.config.assetPath}).`
      );
    }

    if (this.awsConfig.domainName && !this.awsConfig.certificateArn) {
      warnings.push(
        'Setting a custom domain name also requires to specify the ACM certificate ARN.'
      );
    }
  }
}