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Options on ElasticsearchClientSettings

The following is a list of available connection configuration options on ElasticsearchClientSettings:

Authentication

An implementation of IAuthenticationHeader describing what http header to use to authenticate with the product.

`BasicAuthentication` for basic authentication

`ApiKey` for simple secret token

`Base64ApiKey` for Elastic Cloud style encoded api keys

ClientCertificate

Use the following certificates to authenticate all HTTP requests. You can also set them on individual request using ClientCertificates.

ClientCertificates

Use the following certificates to authenticate all HTTP requests. You can also set them on individual request using ClientCertificates.

ConnectionLimit

Limits the number of concurrent connections that can be opened to an endpoint. Defaults to 80 (see DefaultConnectionLimit).

For Desktop CLR, this setting applies to the DefaultConnectionLimit property on the ServicePointManager object when creating ServicePoint objects, affecting the default IConnection implementation.

For Core CLR, this setting applies to the MaxConnectionsPerServer property on the HttpClientHandler instances used by the HttpClient inside the default IConnection implementation.

DeadTimeout

The time to put dead nodes out of rotation (this will be multiplied by the number of times they’ve been dead).

DefaultDisableIdInference

Disables automatic Id inference for given CLR types.

The client by default will use the value of a property named Id on a CLR type as the _id to send to Elasticsearch. Adding a type will disable this behaviour for that CLR type. If Id inference should be disabled for all CLR types, use DefaultDisableIdInference.

DefaultFieldNameInferrer

Specifies how field names are inferred from CLR property names.

By default, the client camel cases property names. For example, CLR property EmailAddress will be inferred as "emailAddress" Elasticsearch document field name.

DefaultIndex

The default index to use for a request when no index has been explicitly specified and no default indices are specified for the given CLR type specified for the request.

DefaultMappingFor

Specify how the mapping is inferred for a given CLR type. The mapping can infer the index, id and relation name for a given CLR type, as well as control serialization behaviour for CLR properties.

DisableAutomaticProxyDetection

Disabled proxy detection on the webrequest, in some cases this may speed up the first connection your appdomain makes, in other cases it will actually increase the time for the first connection. No silver bullet! Use with care!

DisableDirectStreaming

When set to true will disable (de)serializing directly to the request and response stream and return a byte[] copy of the raw request and response. Defaults to false.

DisablePing

This signals that we do not want to send initial pings to unknown/previously dead nodes and just send the call straightaway.

DnsRefreshTimeout

DnsRefreshTimeout for the connections. Defaults to 5 minutes.

EnableDebugMode

Turns on settings that aid in debugging like DisableDirectStreaming() and PrettyJson() so that the original request and response JSON can be inspected. It also always asks the server for the full stack trace on errors.

EnableHttpCompression

Enable gzip compressed requests and responses.

EnableHttpPipelining

Whether HTTP pipelining is enabled. The default is true.

EnableTcpKeepAlive

Sets the keep-alive option on a TCP connection.

For Desktop CLR, sets ServicePointManager.SetTcpKeepAlive.

EnableTcpStats

Enable statistics about TCP connections to be collected when making a request.

GlobalHeaders

Try to send these headers for every request.

GlobalQueryStringParameters

Append these query string parameters automatically to every request.

MaxDeadTimeout

The maximum amount of time a node is allowed to marked dead.

MaximumRetries

When a retryable exception occurs or status code is returned this controls the maximum amount of times we should retry the call to Elasticsearch.

MaxRetryTimeout

Limits the total runtime including retries separately from RequestTimeout. When not specified defaults to RequestTimeout which itself defaults to 60 seconds.

MemoryStreamFactory

Provides a memory stream factory.

NodePredicate

Register a predicate to select which nodes that you want to execute API calls on. Note that sniffing requests omit this predicate and always execute on all nodes. When using an IConnectionPool implementation that supports reseeding of nodes, this will default to omitting master only node from regular API calls. When using static or single node connection pooling it is assumed the list of node you instantiate the client with should be taken verbatim.

OnRequestCompleted

Allows you to register a callback every time a an API call is returned.

OnRequestDataCreated

An action to run when the RequestData for a request has been created.

PingTimeout

The timeout in milliseconds to use for ping requests, which are issued to determine whether a node is alive.

PrettyJson

Provide hints to serializer and products to produce pretty, non minified json.

Note: this is not a guarantee you will always get prettified json.

Proxy

If your connection has to go through proxy, use this method to specify the proxy url.

RequestTimeout

The timeout in milliseconds for each request to Elasticsearch.

ServerCertificateValidationCallback

SkipDeserializationForStatusCodes

Configure the client to skip deserialization of certain status codes, for example, you run Elasticsearch behind a proxy that returns an unexpected json format.

SniffLifeSpan

Force a new sniff for the cluster when the cluster state information is older than the specified timespan.

SniffOnConnectionFault

Force a new sniff for the cluster state every time a connection dies.

SniffOnStartup

Sniff the cluster state immediately on startup.

ThrowExceptions

Instead of following a c/go like error checking on response. IsValid do throw an exception (except when SuccessOrKnownError is false) on the client when a call resulted in an exception on either the client or the Elasticsearch server.

Reasons for such exceptions could be search parser errors, index missing exceptions, and so on.

TransferEncodingChunked

Whether the request should be sent with chunked Transfer-Encoding.

UserAgent

The user agent string to send with requests. Useful for debugging purposes to understand client and framework versions that initiate requests to Elasticsearch.

ElasticsearchClientSettings with ElasticsearchClient

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Here’s an example to demonstrate setting configuration options using the client.

var settings= new ElasticsearchClientSettings()
    .DefaultMappingFor<Project>(i => i
        .IndexName("my-projects")
        .IdProperty(p => p.Name)
    )
    .EnableDebugMode()
    .PrettyJson()
    .RequestTimeout(TimeSpan.FromMinutes(2));

var client = new ElasticsearchClient(settings);

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