Graham McIntire
e99bf06eb4
Previous commit (3c988a5f) switched oban_pro to the licensed hex repo at deploy time. Reverting that — keep all three Pro packages vendored so prod image builds don't depend on oban.pro reachability or auth on every CI run. oban_pro 1.7.0 dropped into vendor/oban_pro via `mix hex.package fetch oban_pro 1.7.0 --repo=oban --unpack`. mix.exs goes back to `path: "vendor/oban_pro"` (matching oban_met / oban_web, which were already vendored — and stay vendored since the licensed repo only has older versions of those: 0.1.11 / 2.10.6 vs the 1.1.0 / 2.12.1 we vendor). Schema migration from3c988a5fstays — 1.7.0 tables/indexes are already applied. No code changes.
34 lines
989 B
Markdown
34 lines
989 B
Markdown
# Chains
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Chains ensure jobs run sequentially for the same entity. Use when order matters (e.g., webhook processing, account balance updates).
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```elixir
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defmodule MyApp.WebhookWorker do
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use Oban.Pro.Worker,
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queue: :webhooks,
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chain: [by: [args: :account_id]]
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@impl Oban.Pro.Worker
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def process(%Oban.Job{args: args}) do
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MyApp.Account.handle_webhook(args["account_id"], args["event"])
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end
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end
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```
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## Partitioning
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```elixir
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chain: [by: :worker] # All jobs of this worker chain together
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chain: [by: [args: :account_id]] # Chain by account_id across workers
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chain: [by: [:worker, args: :account_id]] # Chain by worker AND account_id
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chain: [by: [args: [:account_id, :region]]] # Chain by multiple args
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```
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## Handling failures
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```elixir
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chain: [by: [args: :id], on_discarded: :hold, on_cancelled: :hold]
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```
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- `:ignore` (default) — continue processing downstream jobs
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- `:hold` — stop the chain until the failed job is resolved
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