Configuration

Everything is driven by EbayConfig — construct it directly, from the environment, or from a config file.

From the environment

client = EbayClient.from_env()

reads EBAY_APP_ID, EBAY_CERT_ID, EBAY_DEV_ID, EBAY_RU_NAME, EBAY_REFRESH_TOKEN, EBAY_ACCESS_TOKEN, EBAY_SCOPES (space-separated), EBAY_MARKETPLACE_ID, EBAY_ACCEPT_LANGUAGE, EBAY_CONTENT_LANGUAGE, EBAY_SANDBOX, EBAY_BASE_URL, and the signing variables (EBAY_SIGNING_KEY_FILE, or EBAY_SIGNING_JWE + EBAY_SIGNING_PRIVATE_KEY).

From a config file

EbayConfig.from_file() loads an ebay-cli style config.json (default ~/.config/ebay-cli/config.json):

client = EbayClient(EbayConfig.from_file())

Credentials live under a credentials object with the usual aliases (app_id/client_id, cert_id/client_secret, ru_name/redirect_uri, granted_scopes/scopes); top-level environment and marketplace_default map to sandbox and marketplace_id. A signing-key.json next to the config is picked up automatically.

Marketplace and languages

marketplace_id (default EBAY_US) is sent as X-EBAY-C-MARKETPLACE-ID on every request; methods that accept it as a parameter can override it per call. accept_language / content_language default to en-US.

Scoped overrides: with_options

Any config field can be overridden for a subset of calls without touching the base client:

fast = client.with_options(timeout=5.0, max_retries=0)
fast.sell.inventory.get_offers(sku="ABC-1")

de = client.with_options(marketplace_id="EBAY_DE")

The scoped client shares the HTTP connection pool and token cache — no new connections, no re-auth — and closing it never closes the shared pool.

Injecting your own httpx client

Pass http_client= for custom proxies, transports, or event hooks. bidkit never closes a client it didn't create:

client = EbayClient(config, http_client=httpx.Client(proxy="http://proxy:3128"))