R2 writes to the same key
Limit · r2
One concurrent write per second to the same object name.
Free plan
Faster concurrent writes return HTTP 429.
Paid plan
The same 1 per second limit.
What it means
This limit does not apply to reads. It is about concurrent writers on one key.
What it does to a bill
A 429 from an unauthorized caller is not billed. A successful write is a Class A operation.
Sources
- R2 limitsOfficial
- R2 pricingOfficial