AWS API Gateway Malformed Lambda Response - json

Question

The documentation states that the json should return containing a body,headers,and a status code all of which I have. However for whatever reason when I test it in API gateway it returns a malformed response.
This is the output of the method below it.
"{\"body\": 200, \"headers\": {\"Content-type\":
\"application/json\"}, \"statusCode\": 200}"
def addnumbers(message, context):
result = message['num1'] + 1
print(result)
resp = {
"statusCode": 200,
"body": result,
"headers": { "Content-type": "application/json"}
}
return (json.dumps(resp))
I am currently passing in num1=1 and it doesn't give any better error message. Any guidance would be appreciated.

Answer 1

Ok buckle in for an answer.
Make sure you have proxy integration enabled on whatever resource you want in your API.
Now go to your lambda. Look at how I was previously trying to pass in num1.I was trying to get it from the "Event" or message. This is where I was tripping up. Also note (you can't do a get with a body)
Rather the input to the lambda should be like this.
{
"queryStringParameters": {
"input": "Whatever the input is you want the lambda to test"
}
}
So now that we have our test configured for the lambda we need to code the lambda itself.
I put this code within :
def lambda_handler(event, context):
number = "Hello, " + event['queryStringParameters']['input']
out = {}
out['statusCode'] = 200
out['body'] = number
return (out)
Now if you test it should be fine.
Go back to the API Gateway
In the "Query Strings" Section put in input=randomname
It should now return with hello, randomname