Help understanding Upsert - How to Commit Mutations/Upserts

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Over the HTTP API, you can set /mutate?commitNow=true for the /mutate endpoint.

For txns with multiple mutations, you can call /commit separately with the appropriate timestamp and txn keys/preds: https://dgraph.io/docs/clients/raw-http/#committing-the-transaction

When you commit, you’ll see the commit_ts in the extensions in the response, e.g.:

{
    "data": { ... },
    "extensions": {
        "txn": {
          "start_ts": 200460131,
          "commit_ts": 200460132,
          ...
        }
    }
}
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