ActionCloudflare R2Updated June 2026

How do I list objects in an R2 bucket?

Short answer: You can list r2 objects in Cloudflare R2 by hand from its own interface, but it won’t repeat itself. On TinyCommand, add the Cloudflare R2 List R2 Objects action to a workflow, map its 3 inputs from any upstream app, and it runs automatically every time the trigger fires. No code, and a free tier to start.

Use this action All 3 Cloudflare R2 actions

Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

Field	Type	Required	Description
Bucket bucket	string	Required	my-bucket
Prefix prefix	string	Optional	Filter by key prefix, e.g. `uploads/2026/`.
Max Keys max_keys	number	Optional	Max objects to return (1-1000).

Sample request

{
  "bucket": "my-bucket",
  "prefix": "{{trigger.prefix}}",
  "max_keys": "{{trigger.max_keys}}"
}

Returns

"<ListBucketResult>...</ListBucketResult>"

Use these fields in downstream nodes for routing, logging, or error handling.

FAQ

Questions about List R2 Objects.

What does the List R2 Objects action do in Cloudflare R2?

Paginated objects within a bucket with optional prefix filter. Useful for batch-processing workflows that need to discover all objects matching a pattern (e.g., "all .csv files under exports/" for incremental ingestion).

What inputs does List R2 Objects require?

Required: Bucket. Every input accepts a static value or a variable from any upstream node in your workflow.

Can I use dynamic inputs from earlier workflow nodes?

Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.

What happens if Cloudflare R2 returns an error?

The workflow pauses on the failed node, the error message is captured in the run log, and you can retry the run with one click. Auto-retry policies are configurable per workflow with exponential backoff up to 5 attempts.

Does List R2 Objects support batch operations?

Yes. Run List R2 Objects inside a Loop node to process arrays. TinyCommand handles Cloudflare R2's rate limits automatically so you don't have to throttle manually.

More actions

Other Cloudflare R2 actions.

Action

Get R2 Object

Downloads object content from an R2 bucket. For workflows that need to fetch and process R2-stored content (CDN-origin files, archived backups, user-uploaded assets) downstream.