How do I get the URL parameters with AWS lambda functions?

Question

I am using Netlify functions for an API, most of which is working perfectly fine, apart from when I am needing to access URL parameters

Here is a snippet of what I have to get the parameter:

func Handler(ctx context.Context, request events.APIGatewayProxyRequest) (Response, error) {

    id := request.PathParameters["id"]

    ...
}

func main() {
    lambda.Start(Handler)
}

I have other functions that are working correctly that do not require URL params but cannot figure out how to get these ones working, I have tried multiple different selections:

https://example.com/endpoint/1
https://example.com/endpoint/id=1
https://example.com/endpoint?id=1

None of the above return the id path parameter when hitting the endpoint

read the question again, already using APIGatewayProxyRequest — Liam Clarke
– Liam Clarke, Commented Apr 10, 2020 at 18:24
The thing you're already using as a field called QueryStringParameters. What exactly do you need clarification on? — Adrian
– Adrian, Commented Apr 10, 2020 at 18:53

Eklavya · Accepted Answer · 2020-04-10 18:53:56Z

7

You can use request.QueryStringParameters["id"] to get id from query param

func Handler(ctx context.Context, request events.APIGatewayProxyRequest) (Response, error) {

    id := request.QueryStringParameters["id"]

    ...
}

And call like https://example.com/endpoint?id=1

answered Apr 10, 2020 at 18:53

Eklavya

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