I know how to access GET string variables in a Node js Lambda that is integrated with API Gateway with:
event["queryStringParameters"]["variable_name"]
What is the equivalent for accessing POST variables?
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1 Answer
Use the following
if (event.body !== null && event.body !== undefined) {
let body = JSON.parse(event.body) //use in case of JSON body
//your code
}
7 Comments
Joe Lafiosca
I'm unsure why this answer was downvoted, but it is correct. When you receive a POST in your Lambda handler from API Gateway, the Lambda event contains a field called
body which contains a JSON string representation of the POST body. You can parse the JSON into an object and access your POST variables as keys in the body object.
jaimerr
Thx. Json parse didn't work for me but the rest got me in the right track
anhduc.bkhn
@jaimerr you need to make sure your body is valid in json format
Saeven
Your body will be whatever you post to it. If you post multipart form data, JSON parse will tank. That's probably why it is getting downvoted.
Sandeep Singh
@PreetSaxena Above code example is for when the posted body is in JSON format. You can get an idea about multipart data here
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