Get Lambda function

import { LambdaClient, GetFunctionCommand } from "@aws-sdk/client-lambda"

/**

 * Get Lambda function

 * Get a Lambda function's configuration, a presigned link to its deployment package (valid 10 minutes), its tags and its reserved concurrency. Pass a qualifier to read a specific version or alias. Needs lambda:GetFunction (tags also need lambda:ListTags).

 */

export async function main(

  auth: RT.Aws,

  function_name: string,

  qualifier: string | undefined

) {

  const client = new LambdaClient({

    region: auth.region || undefined,

    credentials: {

      accessKeyId: auth.awsAccessKeyId,

      secretAccessKey: auth.awsSecretAccessKey,

    },

  })

  const { $metadata, ...result } = await client.send(

    new GetFunctionCommand({

      FunctionName: function_name,

      Qualifier: qualifier || undefined,

    })

  )

  return result

}