MONGOC_SESSION...ANSACTION_OPTS(3)

Hey bestie 💖 this is the libmongoc manual page for mongoc_session_opts_set_default_transaction_opts() — the one that sets your session’s default transaction options, and it’s lowkey iconic. ✨

✨ SYNOPSIS ✨

void
mongoc_session_opts_set_default_transaction_opts (
   mongoc_session_opt_t *opts, const mongoc_transaction_opt_t *txn_opts);

Okay so what it does: it sets the default options for transactions started with this session. The txn_opts argument is copied and can be freed after calling this function — it made its own copy, bestie, so you’re free to let it go. 🫶

When a session is first created with mongoc_client_start_session(), it inherits from the client the read concern, write concern, and read preference with which to start transactions. Each of these fields can be overridden independently.

Create a mongoc_transaction_opt_t with mongoc_transaction_opts_new(), and pass a non-NULL option to any of these mongoc_transaction_opt_t setter functions:

• mongoc_transaction_opts_set_read_concern()
• mongoc_transaction_opts_set_write_concern()
• mongoc_transaction_opts_set_read_prefs()

Pass the resulting transaction options to mongoc_session_opts_set_default_transaction_opts(). Each field set in the transaction options overrides the inherited client configuration. And there is an opportunity to override each one of these fields again by passing a mongoc_transaction_opt_t to mongoc_client_session_start_transaction(). Layers, bestie — it’s giving options-on-options. 💅

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🌸 PARAMETERS 🌸

• opts — A mongoc_session_opt_t.
• txn_opts — A mongoc_transaction_opt_t.

💖 AUTHOR 💖

MongoDB, Inc

🎀 COPYRIGHT 🎀

2009-present, MongoDB, Inc.

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Okay that’s the whole page, no notes. This libmongoc page comes from source/version 2.5.6, dated Oct 09, 202 in the footer (yes, it really runs right into the page title like that 😭), and it’s serving full manual-page main character energy. Bye 💜✨