```ts
//* Create DynamoDB Table
const assetTable = new aws.dynamodb.Table("assetTable", {
 attributes: [
   {
     name: "id",
     type: "S"
   },
   {
     name: "ts",
     type: "N"
   }
 ],
 hashKey: "id",
 rangeKey: "ts",
 ttl: {
   attributeName: "expiration",
   enabled: true
 },
   billingMode: "PAY_PER_REQUEST"
 });

//* Create API to read DynamoDB
const endpoint = new awsx.apigateway.API("assetQuery", {
 routes: [
   {
     path: "/",
     method: "GET",
     eventHandler: (request, ctx, cb) => {
       const AWS = require("aws-sdk");
       const ddb = new AWS.DynamoDB.DocumentClient({
         apiVersion: "2012-10-08"
       });
       const tableName = assetTable.name.value;
       const params = {
         TableName: tableName
       };
       ddb.scan(params, (err, data) => {
         const features = data.Items.map(item => {
           const point = turf.point([item.longitude, item.latitude], {
             id: item.id,
             speed: item.speed
           });
           return point;
         });
         const featureCollection = turf.featureCollection(features);
         cb(undefined, {
           statusCode: 200,
           body: Buffer.from(
             JSON.stringify(featureCollection),
             "utf8"
           ).toString("base64"),
           isBase64Encoded: true,
           headers: { "content-type": "application/json" }
         });
       });
     }
   }
 ],
 stageName: "dev"
});
```