I have published an InfoQ news post about the AWS team's solution for integrating third-party destinations for Amazon Kinesis Data Firehose:
Amazon Kinesis Data Firehose recently gained support to deliver streaming data to generic HTTP endpoints. This also enables additional AWS services as destinations via Amazon API Gateway's service integration. The new capability is complemented with dedicated integrations of additional third-party service providers like Datadog, MongoDB, and New Relic.
Continue reading the full post in Amazon Kinesis Data Firehose Gains Delivery to HTTP Endpoints.