I was reading https://netflixtechblog.com/building-a-resilient-data-platform-with-write-ahead-log-at-netflix-127b6712359a
It made me think that I have a remotely vague version of this using Temporal.
I have a http endpoint where I dump whatever to, it writes to temporal, then a temporal worker will persist it to postgres and do whatever with it.
Obviously not the same use case, but I use temporal kind of like a buffer.