CODEWITHSUNDEEP
aws-lambda
Andre
Andre

Reputation: 704

AWS API Gateway Routing

How can route a request from API Gateway based towards the lambda functions A/B/C based in the fact that specific header is present or not?

https://api.example.com/prod

if the headers "UserType" is:

guest -> redirect to lambda A
normal -> redirect to lambda B
admin -> redirect to lambda C

I know how only using different URL, e.g:

https://api.example.com/prod
https://api.example.com/dev

Upvotes: 1

Views: 1320

Answers (1)

suraj.datta
suraj.datta

Reputation: 99

It's actually not possible. We can bind only one Lambda function with a specific resource of API Gateway. The headers are accessible as an event parameter within the lambda function itself.

Preferred way would be to create 3 different functions(your business logic's will reside here) within your lambda & based on usertype you can call the function.

And if you really want to make use of three different lambdas, you can make use of invoke method available in aws-sdk. You can refer following link for code syntax & example.

https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/Lambda.html#invoke-property

2nd method will definitely increase the response time.

Upvotes: 2

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