[Request] Add support for multi-value parameters about serverless-http HOT 3 CLOSED

I just submitted a PR for this. #67 Hopefully it'll roll out soon. In the meantime, you can fiddle with a field overwrite ahead of the handler call in AWS. The queryStringParameters field in the event should be a subset of the multiValueQueryStringParameters field, so you can || them or just overwrite the queryStringParameters directly.

//index.js

const serverless = require('serverless-http')
const app = require('./app')

let server = serverless(app, {
  callbackWaitsForEmptyEventLoop: false,
  request: function (request, event, context) {
    // ...
  },
  response: function (response, event, context) {
   // ...
  }
})
app.setup(server)

module.exports = {
  handler: async (event, context) => {
    event.queryStingParameters = event.multiValueQueryStringParameters
    return server(event, context)
  }
}

I have a fork with functioning code for AWS Lambda / node at least here: https://github.com/jamesvillarrubia/serverless-http. Feel free to npm install it directly.

from serverless-http.

Thanks @jamesvillarrubia for pointing me in the right direction.

Note for anyone trying to do this (for application load balancer at least) you need to convert the querystrings / headers on the way in and the headers on the way out.

eg:

module.exports = {
    handler: (event, context) =>
        event = util.serverlessTransformMultiValuesIncoming(event)
        event = util.serverlessCleanQueryStringParameters(event)

        server(event, context)
        .then (res) =>
            res = util.serverlessTransformMultiValuesOutgoing(res, event)
            res
}

Keys to transform inbound are: multiValueQueryStringParameters->queryStringParameters and multiValueHeaders->headers. Outbound there are only headers so headers->multiValueHeaders

from serverless-http.

Released in 1.9.0

from serverless-http.