Database is a helper class for creating requests. MongoDB works with collection names and uses the part before the first dot as the name of the database.

name of the field to index, ascending order (true), descending order (false)

Vector of fields to create index on

< For new indexes with conditional-inclusion semantics, prefer < partialFilterExpression (see createIndex with extraOptions) < over INDEX_SPARSE.

< Hybrid online index builds since 4.2; no longer forwarded to the server.

< Hide the index from the query planner (since MongoDB 4.4).

Wire version as reported by the command hello. See details in MongoDB github, repository specifications. @see queryServerHello

< First wire version that supports OP_MSG

< First wire version that supports *only* OP_MSG

Creates a Database for the database with the given name.

Destroys the Database.

Authenticates against the database using the given connection, username and password, and authentication method:

• "SCRAM-SHA-256" (MongoDB 4.0+)
• "SCRAM-SHA-1" (MongoDB 3.0+)

MONGODB-CR is not supported (requires the legacy wire protocol).

SCRAM-SHA-256 accepts ASCII passwords only; SASLprep (RFC 4013) is not implemented. Non-ASCII throws Poco::NotImplementedException.

Returns true on success, false on invalid credentials. Throws Poco::ProtocolException on other failures.

Counts documents in the given collection using the aggregation framework ([{$count: "n"}]) over OP_MSG. Aggregation-based counting is preferred over the legacy "count" command because it is part of the Stable API v1 (since MongoDB 5.0), is accurate on sharded clusters (the legacy command can over-report due to orphaned documents), and is permitted in multi-document transactions.

If the command fails, -1 is returned.

Creates an index. The document returned is the response body. For more info look at the createIndex information on the MongoDB website. (new wire protocol)

Leave version at 0 to use the server default (v=2 since MongoDB 3.4). Setting v=1 is only for compatibility with pre-3.4 servers and is incompatible with text, wildcard, and several other modern index types.

Creates an index, allowing arbitrary additional fields in the per-index spec via extraOptions. Every element of extraOptions is added to the index spec document on top of the fields derived from indexedFields, indexName, options, expirationSeconds and version. Typical keys to pass in extraOptions include:

• "partialFilterExpression" (Document): partial indexes, MongoDB 3.2+. Preferred over INDEX_SPARSE for new code.
• "collation" (Document): per-index collation, MongoDB 3.4+.
• "wildcardProjection" (Document): wildcard / compound-wildcard indexes (the wildcard field itself is specified as "$**" or "path.$**" in indexedFields).
• "weights", "default_language", "language_override" (text indexes).
• "2dsphereIndexVersion", "bits", "min", "max" (geo indexes).

The document returned is the createIndexes response body.

Creates OpMsgCursor for the given collection.

Creates OpMsgMessage for the given collection.

Creates OpMsgMessage for database commands that do not require collection as an argument.

Database name

Queries server build info using OP_MSG protocol.

Queries hello response from server using OP_MSG protocol.

Performs SCRAM-SHA-1 authentication.

Performs SCRAM-SHA-256 authentication. ASCII passwords only.

SCRAM-SHA-1 authentication mechanism (MongoDB 3.0+).

SCRAM-SHA-256 authentication mechanism (MongoDB 4.0+).