GraphQLServerLambda is not a constructor

[SourabhSarnaik]

This is my handler.js code:
`const { GraphQLServerLambda } = require('graphql-yoga')

const resolvers = require('./src/resolvers')

const lambda = new GraphQLServer({
typeDefs: "./src/schema.graphql",
resolvers
})

exports.server = lambda.graphqlHandler
exports.playground = lambda.playgroundHandler`

While running test on lambda function, I am getting the error:
{ "errorType": "TypeError", "errorMessage": "GraphQLServerLambda is not a constructor", "trace": [ "TypeError: GraphQLServerLambda is not a constructor", " at Object.<anonymous> (/var/task/handler.js:5:16)", " at Module._compile (internal/modules/cjs/loader.js:999:30)", " at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)", " at Module.load (internal/modules/cjs/loader.js:863:32)", " at Function.Module._load (internal/modules/cjs/loader.js:708:14)", " at Module.require (internal/modules/cjs/loader.js:887:19)", " at require (internal/modules/cjs/helpers.js:74:18)", " at _tryRequire (/var/runtime/UserFunction.js:75:12)", " at _loadUserApp (/var/runtime/UserFunction.js:95:12)", " at Object.module.exports.load (/var/runtime/UserFunction.js:140:17)" ] }

[n1ru4l]

There is no export such as GraphQLServerLambda in Yoga version 2. You can find the AWS Lambda guide over here: https://www.graphql-yoga.com/docs/integrations/integration-with-aws-lambda