AWS - Caching the response of a scheduled lambda function - amazon-web-services

Question

Using AWS, I have followed an example of a lambda function using the serverless framework. It is working as expected, but now I wonder what the best way of caching the response is.
My final version of this will consist of one or more json objects that will be retrieved on a regular basis.
The client side will call an api that will retrieve the already cached data.
So what AWS service should I implement to actually make the cache?

Answer 1

If it's static bit of JSON i'd simply import/return it from within the function rather than enable caching, but hey it's your API!
To answer your question you can use caching within API Gateway to do so, documentation can be found here
Update:
I'd actually misread the question so apologies for that, whilst that caching works what the Op is asking is where to store data retrieved - if your retrieving it from an external API you can just write it to s3 like so:
import AWS from 'aws-sdk'
export default (event, context, callback) => {
let s3Bucket = new AWS.S3({ params: { Bucket: 'YOUR_BUCKET_NAME' } })
let documentName = 'someName'
let fileExtension = 'json'
let s3data = {
Key: `${documentName}.${fileExtension}`,
Body: JSON.parse(event.body.someJsonObject),
}
s3Bucket.putObject(s3data, (err, s3result) => {
if (err) {
console.log(err)
callback(err, null)
} else {
console.log('S3 added', s3result)
callback(null, 'done')
}
})
}
Then you just need to read the object back in your serving endpoint.