Gplay Device Tiers

gplay device-tiers (device-targeting for tiered delivery)

gplay device-tiers manages device tier configs — the app-scoped configuration that drives tiered content delivery: which devices fall into which tier, so Play can serve different assets to high-end and low-end devices. Shared conventions (auth, output, exit codes, --dry-run, --package pinning) are in gplay-cli-usage. The whole namespace is [experimental].

A config bundles three things (all expressed in the JSON body):

• device groups — named sets of device selectors (over RAM, device IDs, SoCs, system features),
• an ordered device tier set — tiers by descending priority,
• user country sets.

Immutable — create / get / list only

The defining property: a device tier config is immutable. The API exposes only create, get, and list — no update, no patch, no delete. Two consequences:

• create needs no --confirm. It can never overwrite or destroy an existing config, so it isn't a destructive write. (GPLAY_READONLY still refuses it — it is a write — with exit 4.)
• To "change" targeting, you create a new config and point delivery at the new deviceTierConfigId. Old configs stay around; there is nothing to edit or clean up here.

This also puts device tier configs outside the Edit lifecycle (like the Data Safety declaration and app recovery) — a direct application-scoped write, no editId.

Create

# From a file:
gplay device-tiers create --file config.json

# From stdin (default when --file is omitted or "-"):
cat config.json | gplay device-tiers create

# Rehearse — validate the body, resolve the target, no HTTP:
gplay device-tiers create --file config.json --dry-run

• The server assigns the deviceTierConfigId — do not put an id in the body.
• --allow-unknown-devices sets allowUnknownDevices=true (let devices Play doesn't recognize into the config).
• Don't know the body shape? gplay schema DeviceTierConfig expands its fields and enums offline (see gplay-cli-usage), or round-trip an existing config with view --output json.

Read

gplay device-tiers list                       # newest first; --page-size / --page-token to page
gplay device-tiers view <deviceTierConfigId>  # one config by its server-assigned id
gplay device-tiers view <id> --output json    # DeviceTierConfig, verbatim

--output json passes the API response through verbatim (ADR-0003) — the list response carries nextPageToken for paging (capped at 100 per page).

Confirm the current verbs and flags with gplay device-tiers --help and gplay device-tiers <command> --help — the surface is [experimental] (ADR-0030) and may still evolve.