curl -i https://api.serialized.io/projections/definitions \
--header "Content-Type: application/json" \
--header "Serialized-Access-Key: <YOUR_ACCESS_KEY>" \
--header "Serialized-Secret-Access-Key: <YOUR_SECRET_ACCESS_KEY>" \
"projectionName": "order-totals",
"eventType": "OrderPlacedEvent",
"targetSelector": "$.projection.orderAmount",
"eventSelector": "$.event.orderAmount"
"targetSelector": "$.projection.orderCount"