Transform a class instance to json object (ObjectIds are not touched)
-AbstractTransform a class instance to plain object (ObjectIds become string)
+Transform a class instance to json object (ObjectIds are not touched)
+OptionalupdatedTo avoid Transaction Errors, it is important to keep a sequential approach in the way transactions are commited to the session. +
Protected ReadonlyclientProtected ReadonlyexceptionProtectedlogProtected ReadonlymodelsProtected ReadonlyrepositoriesProtected ReadonlysessionProtecteddeleteOptionaloptions: ClassTransformOptionsOptionaldatabaseName: stringTo avoid Transaction Errors, it is important to keep a sequential approach in the way transactions are commited to the session. ie: do not to use Promise.all (parallel execution) in your transaction function as it could cause inconsistencies in the order in which transactions will be committed to the session.
-Optionalpipes: Document[]Optionaloptions: ClassTransformOptionsAbstractOptionaldate: DateProtected ReadonlyonTransform a class instance to plain object (ObjectIds become string)
-Transform a class instance to json object (ObjectIds are not touched)
-OptionalorderTransform a class instance to plain object (ObjectIds become string)
+Transform a class instance to json object (ObjectIds are not touched)
+OptionaldefaultGets default message when validation for this constraint fail.
+Method to be called to perform custom validation over given value.
+OptionaldefaultGets default message when validation for this constraint fail.
+Method to be called to perform custom validation over given value.
+StaticforStaticforTransform a class instance to plain object (ObjectIds become string)
-Transform a class instance to json object (ObjectIds are not touched)
-Method to implement a custom pipe. Called with two parameters
+argument before it is received by route handler method
+contains metadata about the value
+Method to implement a custom pipe. Called with two parameters
+argument before it is received by route handler method
+contains metadata about the value
+Define the cascade operation of a relationship
+Optionaloptions: IsUniqueOptionsOptionalvalidationOptions: IsValidRelationshipOptionsOptionalisArray: booleanPrivatePrivateWRTIE DEF
+A class constructor
+The property containing the child
+Optionaloptions: ClassTransformOptionsGet relationship metadata
+A class constructor
+The property that was set as relationship
+Optionalem: EntityManagerThe entity manager (only required if the relationship target type is set as a string)
+Optionalobj: anyThe instance of the entity (only required if the type of the relationship is dynamic)
+The class constructor of an entity
+PrivatePrivateSet relationship metadata
+An instance of an object
+The property to set as relationship
+The metadata defining the relationship
+NestJS Mongo is a module that provide a little orm. Build with typescript and the nodejs mongodb driver
+NestJS Mongo is a module that provide a little orm. Build with typescript and the nodejs mongodb driver
+npm install nestjs-mongo
# or unig yarn
yarn add nestjs-mongo
+npm install nestjs-mongo
# or unig yarn
yarn add nestjs-mongo
-An example of nestjs module that import the nestjs-mongo
+// module.ts
import { Module } from '@nestjs/common';
import { MongoModule } from 'nestjs-mongo';
@Module({
imports: [
MongoModule.forRootAsync({
imports: [],
useFactory: (config: ConfigService) => ({
uri: config.mongoUri
}),
inject: [MyConfigService]
})
]
})
export class MyModule {}
+An example of nestjs module that import the nestjs-mongo
-// module.ts
import { Module } from '@nestjs/common';
import { MongoModule } from 'nestjs-mongo';
@Module({
imports: [
MongoModule.forRootAsync({
imports: [],
useFactory: (config: ConfigService) => ({
uri: config.mongoUri
}),
inject: [MyConfigService]
})
]
})
export class MyModule {}
-....More coming soon.
- - -A typedoc is generated and available on github https://pop-code.github.io/nestjs-mongo
- - -A typedoc is generated and available on github https://pop-code.github.io/nestjs-mongo
+OptionalhistoryTransform a class instance to plain object (ObjectIds become string)
+Transform a class instance to json object (ObjectIds are not touched)
+OptionalupdatedThe abstract relationship metadata
+Define the PossibleTypes of the relationship linked to a property
+Transform a class instance to plain object (ObjectIds become string)
-Transform a class instance to json object (ObjectIds are not touched)
-OptionalhistoryTransform a class instance to plain object (ObjectIds become string)
+Transform a class instance to json object (ObjectIds are not touched)
+OptionalupdatedIndicates if validation must be performed always, no matter of validation groups used.
-Specifies if validated value is an array and each of its items must be validated.
-Validation groups used for this validation.
-Error message to be used on validation fail. +
OptionalalwaysIndicates if validation must be performed always, no matter of validation groups used.
+OptionalcontextOptionaleachSpecifies if validated value is an array and each of its items must be validated.
+OptionalgroupsValidation groups used for this validation.
+OptionalmessageError message to be used on validation fail. Message can be either string or a function that returns a string.
-OptionalwithOptional list of imported modules that export the providers which are +
OptionalinjectAn array of strings or a Buffer naming possible ALPN protocols. +
OptionalallowTreat intermediate (non-self-signed) +certificates in the trust CA certificate list as trusted.
+OptionalALPNAn array of strings or a Buffer naming possible ALPN protocols. (Protocols should be ordered by their priority.)
-The name of the application that created this MongoClient instance. MongoDB 3.4 and newer will print this value in the server log upon establishing each connection. It is also recorded in the slow query log and profile collections
-The auth settings for when connection to server.
-Specify the authentication mechanism that MongoDB will use to authenticate the connection.
-Specify properties for the specified authMechanism as a comma-separated list of colon-separated key-value pairs.
-Specify the database name associated with the user’s credentials.
-Optionally enable client side auto encryption
-OptionalappThe name of the application that created this MongoClient instance. MongoDB 3.4 and newer will print this value in the server log upon establishing each connection. It is also recorded in the slow query log and profile collections
+OptionalauthThe auth settings for when connection to server.
+OptionalauthSpecify the authentication mechanism that MongoDB will use to authenticate the connection.
+OptionalauthSpecify properties for the specified authMechanism as a comma-separated list of colon-separated key-value pairs.
+OptionalauthSpecify the database name associated with the user’s credentials.
+OptionalautoOptionally enable in-use auto encryption
+Automatic encryption is an enterprise only feature that only applies to operations on a collection. Automatic encryption is not supported for operations on a database or view, and operations that are not bypassed will result in error +(see libmongocrypt: Auto Encryption Allow-List). To bypass automatic encryption for all operations, set bypassAutoEncryption=true in AutoEncryptionOpts.
+Automatic encryption requires the authenticated user to have the listCollections privilege action.
+If a MongoClient with a limited connection pool size (i.e a non-zero maxPoolSize) is configured with AutoEncryptionOptions, a separate internal MongoClient is created if any of the following are true:
If an internal MongoClient is created, it is configured with the same options as the parent MongoClient except minPoolSize is set to 0 and AutoEncryptionOptions is omitted.
-return BSON regular expressions as BSONRegExp instances.
-Optionally override the trusted CA certificates. Default is to trust -the well-known CAs curated by Mozilla. Mozilla's CAs are completely +
OptionalautoOptionalautoOptionalbsonreturn BSON regular expressions as BSONRegExp instances.
+OptionalcaOptionally override the trusted CA certificates. Default is to trust +the well-known CAs curated by Mozilla. Mozilla's CAs are completely replaced when CAs are explicitly specified using this option.
-Cert chains in PEM format. One cert chain should be provided per - private key. Each cert chain should consist of the PEM formatted - certificate for a provided private key, followed by the PEM - formatted intermediate certificates (if any), in order, and not - including the root CA (the root CA must be pre-known to the peer, - see ca). When providing multiple cert chains, they do not have to - be in the same order as their private keys in key. If the - intermediate certificates are not provided, the peer will not be - able to validate the certificate, and the handshake will fail.
-the serializer will check if keys are valid.
-Verifies the certificate cert is issued to hostname.
Returns Error object, populating it with reason, host, and cert on
+
OptionalcertCert chains in PEM format. One cert chain should be provided per +private key. Each cert chain should consist of the PEM formatted +certificate for a provided private key, followed by the PEM +formatted intermediate certificates (if any), in order, and not +including the root CA (the root CA must be pre-known to the peer, +see ca). When providing multiple cert chains, they do not have to +be in the same order as their private keys in key. If the +intermediate certificates are not provided, the peer will not be +able to validate the certificate, and the handshake will fail.
+Optionalcheckthe serializer will check if keys are valid.
+OptionalcheckVerifies the certificate cert is issued to hostname.
Returns Error object, populating it with reason, host, and cert on
failure. On success, returns undefined.
This function can be overwritten by providing alternative function as part of
-the options.checkServerIdentity option passed to tls.connect(). The
+
This function is intended to be used in combination with thecheckServerIdentity option that can be passed to connect and as
+such operates on a certificate object. For other purposes, consider using x509.checkHost() instead.
This function can be overwritten by providing an alternative function as the options.checkServerIdentity option that is passed to tls.connect(). The
overwriting function can call tls.checkServerIdentity() of course, to augment
the checks done with additional verification.
This function is only called if the certificate passed all other checks, such as
being issued by trusted CA (options.ca).
The host name or IP address to verify the certificate against.
-A certificate object representing the peer's certificate.
Cipher suite specification, replacing the default. For more +
Earlier versions of Node.js incorrectly accepted certificates for a givenhostname if a matching uniformResourceIdentifier subject alternative name
+was present (see CVE-2021-44531). Applications that wish to acceptuniformResourceIdentifier subject alternative names can use
+a custom options.checkServerIdentity function that implements the desired behavior.
The host name or IP address to verify the certificate against.
+A certificate object representing the peer's certificate.
OptionalciphersCipher suite specification, replacing the default. For more information, see modifying the default cipher suite. Permitted ciphers can be obtained via tls.getCiphers(). Cipher names must be uppercased in order for OpenSSL to accept them.
-An array or comma-delimited string of compressors to enable network compression for communication between this client and a mongod/mongos instance.
-The time in milliseconds to attempt a connection before timing out.
-PEM formatted CRLs (Certificate Revocation Lists).
-Allow a driver to force a Single topology type with a connection string containing one host
-Allows a wrapping driver to amend the client metadata generated by the driver to include information about the wrapping driver
-A string describing a named curve or a colon separated list of curve +
OptionalcompressorsAn array or comma-delimited string of compressors to enable network compression for communication between this client and a mongod/mongos instance.
+OptionalconnectThe time in milliseconds to attempt a connection before timing out.
+OptionalcrlPEM formatted CRLs (Certificate Revocation Lists).
+OptionaldirectAllow a driver to force a Single topology type with a connection string containing one host
+OptionaldriverAllows a wrapping driver to amend the client metadata generated by the driver to include information about the wrapping driver
+OptionalecdhA string describing a named curve or a colon separated list of curve NIDs or names, for example P-521:P-384:P-256, to use for ECDH key agreement. Set to auto to select the curve automatically. Use crypto.getCurves() to obtain a list of available curve names. On recent releases, openssl ecparam -list_curves will also display the name and description of each available elliptic curve. Default: tls.DEFAULT_ECDH_CURVE.
-Enable utf8 validation when deserializing BSON documents. Defaults to true.
-allow to specify if there what fields we wish to return as unserialized raw buffer.
-Force server to assign _id values instead of driver
heartbeatFrequencyMS controls when the driver checks the state of the MongoDB deployment. Specify the interval (in milliseconds) between checks, counted from the end of the previous check until the beginning of the next one.
-serialize will not emit undefined fields (default:true)
-The journal write concern
-TCP Connection keep alive enabled
-The number of milliseconds to wait before initiating keepAlive on the TCP socket
-Private keys in PEM format. PEM allows the option of private keys +
OptionalenableEnable utf8 validation when deserializing BSON documents. Defaults to true.
+OptionalexceptionOptionalfamilyOptionalfieldsallow to specify if there what fields we wish to return as unserialized raw buffer.
+OptionalforceForce server to assign _id values instead of driver
OptionalheartbeatheartbeatFrequencyMS controls when the driver checks the state of the MongoDB deployment. Specify the interval (in milliseconds) between checks, counted from the end of the previous check until the beginning of the next one.
+OptionalhintsOptionalignoreserialize will not emit undefined fields
+note that the driver sets this to false
OptionaljournalThe journal write concern
+OptionalkeepNode.JS socket option to set the time the first keepalive probe is sent on an idle socket. Defaults to 120000ms
+OptionalkeyPrivate keys in PEM format. PEM allows the option of private keys
being encrypted. Encrypted keys will be decrypted with
options.passphrase. Multiple keys using different algorithms can be
provided either as an array of unencrypted key strings or buffers,
@@ -103,32 +184,22 @@
passphrase:
Instruct the driver it is connecting to a load balancer fronting a mongos like service
-The size (in milliseconds) of the latency window for selecting among multiple suitable MongoDB instances.
-Custom logger object
-The logging level
-The maximum number of milliseconds that a connection can remain idle in the pool before being removed and closed.
-The maximum number of connections in the connection pool.
-Specifies, in seconds, how stale a secondary can be before the client stops using it for read operations.
-Sets the minimum heartbeat frequency. In the event that the driver has to frequently re-check a server's availability, it will wait at least this long since the previous check to avoid wasted effort.
-The minimum number of connections in the connection pool.
-Enable command monitoring for this client
-TCP Connection no delay
-Shared passphrase used for a single private key and/or a PFX.
-PFX or PKCS12 encoded private key and certificate chain. pfx is an +
OptionalloadInstruct the driver it is connecting to a load balancer fronting a mongos like service
+OptionallocalOptionallocalOptionallocalThe size (in milliseconds) of the latency window for selecting among multiple suitable MongoDB instances.
+OptionallookupOptionalmaxThe maximum number of connections that may be in the process of being established concurrently by the connection pool.
+OptionalmaxThe maximum number of milliseconds that a connection can remain idle in the pool before being removed and closed.
+OptionalmaxThe maximum number of connections in the connection pool.
+OptionalmaxSpecifies, in seconds, how stale a secondary can be before the client stops using it for read operations.
+OptionalminOptionalminSets the minimum heartbeat frequency. In the event that the driver has to frequently re-check a server's availability, it will wait at least this long since the previous check to avoid wasted effort.
+OptionalminThe minimum number of connections in the connection pool.
+OptionalmongodbEnable logging level per component or use default to control any unset components.
OptionalmongodbAll BSON documents are stringified to EJSON. This controls the maximum length of those strings. +It is defaulted to 1000.
+OptionalmongodbSpecifies the destination of the driver's logging. The default is stderr.
+OptionalmonitorEnable command monitoring for this client
+OptionalnoTCP Connection no delay
+OptionalpassphraseShared passphrase used for a single private key and/or a PFX.
+OptionalpfxPFX or PKCS12 encoded private key and certificate chain. pfx is an
alternative to providing key and cert individually. PFX is usually
encrypted, if it is, passphrase will be used to decrypt it. Multiple
PFX can be provided either as an array of unencrypted PFX buffers,
@@ -136,107 +207,81 @@
passphrase:
A primary key factory function for generation of custom _id keys
A Promise library class the application wishes to use such as Bluebird, must be ES6 compatible
-when deserializing a Binary will return it as a node.js Buffer instance.
-when deserializing a Long will fit it into a Number if it's smaller than 53 bits
-when deserializing will promote BSON values to their Node.js closest equivalent types.
-Configures a Socks5 proxy host used for creating TCP connections.
-Configures a Socks5 proxy password when the proxy in proxyHost requires username/password authentication.
-Configures a Socks5 proxy port used for creating TCP connections.
-Configures a Socks5 proxy username when the proxy in proxyHost requires username/password authentication.
-Return document results as raw BSON buffers
-Specify a read concern for the collection (only MongoDB 3.2 or higher supported)
-The level of isolation
-Specifies the read preferences for this connection
-Specifies the tags document as a comma-separated list of colon-separated key-value pairs.
-If true the server will reject any connection which is not +
OptionalpkA primary key factory function for generation of custom _id keys
Optionalpromotewhen deserializing a Binary will return it as a node.js Buffer instance.
+Optionalpromotewhen deserializing a Long will fit it into a Number if it's smaller than 53 bits.
+Optionalpromotewhen deserializing will promote BSON values to their Node.js closest equivalent types.
+OptionalproxyConfigures a Socks5 proxy host used for creating TCP connections.
+OptionalproxyConfigures a Socks5 proxy password when the proxy in proxyHost requires username/password authentication.
+OptionalproxyConfigures a Socks5 proxy port used for creating TCP connections.
+OptionalproxyConfigures a Socks5 proxy username when the proxy in proxyHost requires username/password authentication.
+OptionalrawEnabling the raw option will return a Node.js Buffer +which is allocated using allocUnsafe API. +See this section from the Node.js Docs here +for more detail about what "unsafe" refers to in this context. +If you need to maintain your own editable clone of the bytes returned for an extended life time of the process, it is recommended you allocate +your own buffer and clone the contents:
+const raw = await collection.findOne({}, { raw: true });
const myBuffer = Buffer.alloc(raw.byteLength);
myBuffer.set(raw, 0);
// Only save and use `myBuffer` beyond this point
+Please note there is a known limitation where this option cannot be used at the MongoClient level (see NODE-3946).
+It does correctly work at Db, Collection, and per operation the same as other BSON options work.
OptionalreadSpecify a read concern for the collection (only MongoDB 3.2 or higher supported)
+OptionalreadThe level of isolation
+OptionalreadSpecifies the read preferences for this connection
+OptionalreadSpecifies the tags document as a comma-separated list of colon-separated key-value pairs.
+OptionalrejectIf true the server will reject any connection which is not authorized with the list of supplied CAs. This option only has an effect if requestCert is true.
-Specifies the name of the replica set, if the mongod is a member of a replica set.
-Enables retryable reads.
-Enable retryable writes.
-An optional TLS context object from tls.createSecureContext()
-Legacy mechanism to select the TLS protocol version to use, it does +
OptionalreplicaSpecifies the name of the replica set, if the mongod is a member of a replica set.
+OptionalretryEnables retryable reads.
+OptionalretryEnable retryable writes.
+OptionalsecureAn optional TLS context object from tls.createSecureContext()
+OptionalsecureLegacy mechanism to select the TLS protocol version to use, it does not support independent control of the minimum and maximum version, and does not support limiting the protocol to TLSv1.3. Use minVersion and maxVersion instead. The possible values are listed as SSL_METHODS, use the function names as strings. For example, use -'TLSv1_1_method' to force TLS version 1.1, or 'TLS_method' to allow +'TLSv1_1_method' to force TLS version 1.1, or 'TLS_method' to allow any TLS protocol version up to TLSv1.3. It is not recommended to use TLS versions less than 1.2, but it may be required for interoperability. Default: none, see minVersion.
-serialize the javascript functions (default:false).
-Server API version
-Specifies how long (in milliseconds) to block for server selection before throwing an exception.
-The time in milliseconds to attempt a send or receive on a socket before the attempt times out.
-The maximum number of hosts to connect to when using an srv connection string, a setting of 0 means unlimited hosts
Modifies the srv URI to look like:
-_{srvServiceName}._tcp.{hostname}.{domainname}
Optionalserializeserialize the javascript functions
+OptionalserverServer API version
+OptionalserverInstructs the driver monitors to use a specific monitoring mode
+OptionalservernameOptionalserverSpecifies how long (in milliseconds) to block for server selection before throwing an exception.
+OptionalsessionAn optional Buffer instance containing a TLS session.
+OptionalsocketThe time in milliseconds to attempt a send or receive on a socket before the attempt times out.
+OptionalsrvThe maximum number of hosts to connect to when using an srv connection string, a setting of 0 means unlimited hosts
OptionalsrvModifies the srv URI to look like:
+_{srvServiceName}._tcp.{hostname}.{domainname}
Querying this DNS URI is expected to respond with SRV records
-A boolean to enable or disables TLS/SSL for the connection. (The ssl option is equivalent to the tls option.)
-SSL Certificate file path.
-SSL Certificate revocation list file path.
-SSL Certificate file path.
-SSL Key file file path.
-SSL Certificate pass phrase.
-Validate mongod server certificate against Certificate Authority
-Enables or disables TLS/SSL for the connection.
-Bypasses validation of the certificates presented by the mongod/mongos instance
-Disables hostname validation of the certificate presented by the mongod/mongos instance.
-Specifies the location of a local .pem file that contains the root certificate chain from the Certificate Authority. This file is used to validate the certificate presented by the mongod/mongos instance.
-Specifies the location of a local TLS Certificate
-Specifies the location of a local .pem file that contains either the client's TLS/SSL certificate and key or only the client's TLS/SSL key when tlsCertificateFile is used to provide the certificate.
-Specifies the password to de-crypt the tlsCertificateKeyFile.
-Disables various certificate validations.
-The write concern w value
-The maximum time in milliseconds that a thread can wait for a connection to become available.
-The write concern timeout
-An integer that specifies the compression level if using zlib for network compression.
-OptionalsslA boolean to enable or disables TLS/SSL for the connection. (The ssl option is equivalent to the tls option.)
+Optional ExperimentaltimeoutSpecifies the time an operation will run until it throws a timeout error
+OptionaltlsEnables or disables TLS/SSL for the connection.
+OptionaltlsBypasses validation of the certificates presented by the mongod/mongos instance
+OptionaltlsDisables hostname validation of the certificate presented by the mongod/mongos instance.
+OptionaltlsSpecifies the location of a local .pem file that contains the root certificate chain from the Certificate Authority. This file is used to validate the certificate presented by the mongod/mongos instance.
+OptionaltlsSpecifies the location of a local .pem file that contains either the client's TLS/SSL certificate and key.
+OptionaltlsSpecifies the password to de-crypt the tlsCertificateKeyFile.
+OptionaltlsSpecifies the location of a local CRL .pem file that contains the client revokation list.
+OptionaltlsDisables various certificate validations.
+Optionalusewhen deserializing a Long return as a BigInt.
+OptionalwThe write concern w value
+OptionalwaitThe maximum time in milliseconds that a thread can wait for a connection to become available.
+OptionalwriteA MongoDB WriteConcern, which describes the level of acknowledgement +requested from MongoDB for write operations.
+OptionalwtimeoutThe write concern timeout
+OptionalzlibAn integer that specifies the compression level if using zlib for network compression.
+Define the items with cascade operation on a class
-Define the items with cascade operation on a class
+The relationship metadata with a type defined as a class constructor (aka the model)
-The relationship metadata with a type defined as a class constructor (aka the model)
+The relationship metadata with a type defined as a function returning a class constructor (aka the model)
-The relationship metadata with a type defined as a function returning a class constructor (aka the model)
+The signature of the function used to determine the type of a relationship target
-Decorator that marks a constructor parameter as a target for -Dependency Injection (DI).
-Any injected provider must be visible within the module scope (loosely -speaking, the containing module) of the class it is being injected into. This -can be done by:
-@Global() decoratorCan be types (class names), strings or symbols. This depends on how the
-provider with which it is associated was defined. Providers defined with the
-@Injectable() decorator use the class name. Custom Providers may use strings
-or symbols as the injection token.
Decorator that marks a constructor parameter as a target for -Dependency Injection (DI).
-Any injected provider must be visible within the module scope (loosely -speaking, the containing module) of the class it is being injected into. This -can be done by:
-@Global() decoratorCan be types (class names), strings or symbols. This depends on how the
-provider with which it is associated was defined. Providers defined with the
-@Injectable() decorator use the class name. Custom Providers may use strings
-or symbols as the injection token.
Decorator that marks a constructor parameter as a target for -Dependency Injection (DI).
-Any injected provider must be visible within the module scope (loosely -speaking, the containing module) of the class it is being injected into. This -can be done by:
-@Global() decoratorCan be types (class names), strings or symbols. This depends on how the
-provider with which it is associated was defined. Providers defined with the
-@Injectable() decorator use the class name. Custom Providers may use strings
-or symbols as the injection token.
Function that returns a new decorator that applies all decorators provided by param
-Useful to build new decorators (or a decorator factory) encapsulating multiple decorators related with the same feature
-Extend a class to be serializable, add 2 methods serialize() and toJSON()
-Function that returns a new decorator that applies all decorators provided by param
-Useful to build new decorators (or a decorator factory) encapsulating multiple decorators related with the same feature
-Function that returns a new decorator that applies all decorators provided by param
-Useful to build new decorators (or a decorator factory) encapsulating multiple decorators related with the same feature
-WRTIE DEF
-A class constructor
-The property containing the child
-Get relationship metadata
-A class constructor
-The property that was set as relationship
-The entity manager (only required if the relationship target type is set as a string)
-The instance of the entity (only required if the type of the relationship is dynamic)
-The class constructor of an entity
-The model to hydrate
-The data to merge into the entity
-The prefixes to excludes (if the source contains key ith prefix)
-Set relationship metadata
-An instance of an object
-The property to set as relationship
-The metadata defining the relationship
-The signature of the function used to determine the type of a relationship target
+Optionalobj: anyOptionalsession: ClientSessionConstConstConstConstConstConstConstConstConst
Transform a class instance to plain object (ObjectIds become string)
-