build(deps): bump mongodb from 3.0.2 to 3.2.3

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Bumps mongodb from 3.0.2 to 3.2.3.

Release notes

Sourced from mongodb's releases.

v3.2.1

The MongoDB Node.js team is pleased to announce version 3.2.1 of the driver.

Due to a publishing snafu v3.2.1 was immediately published without a proper v3.2.0 release

The Topology class no longer uses a callback store, instead relying on a server selection loop for operation execution. This means failed operations will fail faster, with more accurate stack traces and specifics about the failure. It generally makes it much easier to reason about what the driver is doing each time an operation is executed.

You can enable it with the useUnifiedTopology feature flag passed to your MongoClient constructor, like so:

const client = MongoClient('mongodb://localhost:27017', { useUnifiedTopology: true });

This topology layer will replace the existing topologies in a breaking 4.x release later this year, so we strongly encourage our users to try it out as soon as possible.

A call to withTransaction begins a new transaction, executes the provided function, and then attempts to commit the transaction. The function passed to withTransaction must take a session parameter, and this session must be passed to all methods within the function. If some error is encountered, it will attempt to re-commit the transaction before ultimately failing back to the user after aborting the transaction. NOTE: A mentioned, the passed in function MAY be retried multiple times, please keep this in mind when executing non-database operations within the function.

Here’s an example of it in action:

const client = new MongoClient();
await client.connect();
const session = client.startSession();
// NOTE: the withTransaction method only supports functions that return a Promise
try {
await session.withTransaction(async function(session) {
const coll = client.db('foo').collection('coll');
await coll.insertOne({ a: 42 }, { session });
});
} catch (err) {
// transaction failed after attempted retry
console.dir({ err });
}

Commits

• 6d4f18b chore(release): 3.2.3
• 1c5357a feat: update to mongodb-core v3.2.3
• 49c8cef fix(async): rewrote asyncGenerator in node < 10 syntax
• 72e88ad Revert "feat(lib): implement executeOperationV2"
• e1e24ed Revert "refactor(collection): move operations in collection to their own clas...
• 66e2580 refactor(collection): move operations in collection to their own classes
• f2e3ec2 docs: fix documentation typos
• 4f4c45b style: fix test collection name typo
• 16b2fdc style: fix test function name typo
• f562714 style: fix test name typos
• Additional commits viewable in compare view

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