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REST API

Ignite provides an HTTP REST client that can communicate with the cluster over HTTP and HTTPS protocols using the REST approach. REST APIs can be used to perform different operations like read/write from/to cache, execute tasks, get various metrics, and more.

Internally, Ignite uses Jetty to provide HTTP server features. See Configuration section below for details on how to configure jetty.

Getting Started

To enable HTTP connectivity, make sure that the ignite-rest-http module is enabled. If you use the binary distribution, copy the ignite-rest-http module from IGNITE_HOME/libs/optional/ to the IGNITE_HOME/libs folder. See Enabling modules for details.

Explicit configuration is not required; the connector starts up automatically and listens on port 8080. You can check if it works with curl:

curl 'http://localhost:8080/ignite?cmd=version'

Request parameters may be provided as either a part of URL or in a form data:

curl 'http://localhost:8080/ignite?cmd=put&cacheName=myCache' -X POST -H 'Content-Type: application/x-www-form-urlencoded' -d 'key=testKey&val=testValue'

Configuration

You can change HTTP server parameters as follows:

<bean class="org.apache.ignite.configuration.IgniteConfiguration" id="ignite.cfg">
    <property name="connectorConfiguration">
        <bean class="org.apache.ignite.configuration.ConnectorConfiguration">
            <property name="jettyPath" value="jetty.xml"/>
        </bean>
    </property>
</bean>
IgniteConfiguration cfg = new IgniteConfiguration();
cfg.setConnectorConfiguration(new ConnectorConfiguration().setJettyPath("jetty.xml"));
This API is not presently available for C++. You can use XML configuration.

The following table describes the properties of ConnectorConfiguration that are related to the http server:

Parameter Name Description Optional Default Value

setSecretKey(String)

Defines secret key used for client authentication. When provided, client request must contain HTTP header X-Signature with the string "[1]:[2]", where [1] is timestamp in milliseconds and [2] is the Base64 encoded SHA1 hash of the secret key.

Yes

null

setPortRange(int)

Port range for Jetty server. If the port provided in Jetty configuration or IGNITE_JETTY_PORT system property is already in use, Ignite iteratively increments port by 1 and tries to bind once again until provided port range is exceeded.

Yes

100

setJettyPath(String)

Path to Jetty configuration file. Should be either absolute or relative to IGNITE_HOME. If the path is not set, Ignite starts a Jetty server with a simple HTTP connector. This connector uses IGNITE_JETTY_HOST and IGNITE_JETTY_PORT system properties as host and port respectively. If IGNITE_JETTY_HOST is not provided, localhost is used as default. If IGNITE_JETTY_PORT is not provided, port 8080 is used.

Yes

null

setMessageInterceptor(…​)

The interceptor transforms all objects exchanged via REST protocol. For example, if you use custom serialisation on client you can write an interceptor to transform binary representations received from the client to Java objects and later access them from Java code directly.

Yes

null

Example Jetty XML Configuration

Path to this configuration should be set to ConnectorConfiguration.setJettyPath(String) as explained above.

<?xml version="1.0"?>
<!--
  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with
  the License.  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
-->
<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure.dtd">
<Configure id="Server" class="org.eclipse.jetty.server.Server">
    <Arg name="threadPool">
        <!-- Default queued blocking thread pool -->
        <New class="org.eclipse.jetty.util.thread.QueuedThreadPool">
            <Set name="minThreads">20</Set>
            <Set name="maxThreads">200</Set>
        </New>
    </Arg>
    <New id="httpCfg" class="org.eclipse.jetty.server.HttpConfiguration">
        <Set name="secureScheme">https</Set>
        <Set name="securePort">8443</Set>
        <Set name="sendServerVersion">true</Set>
        <Set name="sendDateHeader">true</Set>
    </New>
    <Call name="addConnector">
        <Arg>
            <New class="org.eclipse.jetty.server.ServerConnector">
                <Arg name="server"><Ref refid="Server"/></Arg>
                <Arg name="factories">
                    <Array type="org.eclipse.jetty.server.ConnectionFactory">
                        <Item>
                            <New class="org.eclipse.jetty.server.HttpConnectionFactory">
                                <Ref refid="httpCfg"/>
                            </New>
                        </Item>
                    </Array>
                </Arg>
                <Set name="host">
                  <SystemProperty name="IGNITE_JETTY_HOST" default="localhost"/>
                </Set>
                <Set name="port">
                  <SystemProperty name="IGNITE_JETTY_PORT" default="8080"/>
                </Set>
                <Set name="idleTimeout">30000</Set>
                <Set name="reuseAddress">true</Set>
            </New>
        </Arg>
    </Call>
    <Set name="handler">
        <New id="Handlers" class="org.eclipse.jetty.server.handler.HandlerCollection">
            <Set name="handlers">
                <Array type="org.eclipse.jetty.server.Handler">
                    <Item>
                        <New id="Contexts" class="org.eclipse.jetty.server.handler.ContextHandlerCollection"/>
                    </Item>
                </Array>
            </Set>
        </New>
    </Set>
    <Set name="stopAtShutdown">false</Set>
</Configure>

Security

When authentication is configured in the cluster, all applications that use REST API request authentication by providing security credentials. The authentication request returns a session token that can be used with any command within that session.

There are two ways to request authorization:

  1. Use the authenticate command with ignite.login=[user]&ignite.password=[password] parameters.

    https://[host]:[port]/ignite?cmd=authenticate&ignite.login=[user]&ignite.password=[password]
  2. Use any REST command with ignite.login=[user]&ignite.password=[password] parameters in the path of your connection string. In our example below, we use the version command:

    http://[host]:[port]/ignite?cmd=version&ignite.login=[user]&ignite.password=[password]

    In both examples above, replace [host], [port], [user], and [password] with actual values.

Executing any one of the above strings in a browser returns a response with a session token which looks like this:

{"successStatus":0,"error":null,"sessionToken":"EF6013FF590348CE91DEAE9870183BEF","response":true}

Once you obtain the session token, use the sessionToken parameter with your connection string as shown in the example below:

http://[host]:[port]/ignite?cmd=top&sessionToken=[sessionToken]

In the above connection string, replace [host], [port], and [sessionToken] with actual values.

Warning

Either user credentials or a session token is required when authentication is enabled on the server. Failure to provide either a sessionToken or user & password parameters in the REST connection string results in an error:

{
    "successStatus":2,
    "sessionToken":null,
    "error":"Failed to handle request - session token not found or invalid",
    "response":null
}
Note

Session Token Expiration

A session token is valid only for 30 seconds. Using an expired session token results in an error, like the one below:

{
    "successStatus":1,
    "error":"Failed to handle request - unknown session token (maybe expired session) [sesTok=12FFFD4827D149068E9FFF59700E5FDA]",
    "sessionToken":null,
    "response":null
}

To set a custom expire time, set the system variable: IGNITE_REST_SESSION_TIMEOUT (in seconds).

-DIGNITE_REST_SESSION_TIMEOUT=3600

Data Types

By default, the REST API exchanges query parameters in the String format. The cluster works with the parameters as with String objects.

If a type of a parameter is different from String, you can use the keyType or valueType to specify the real type of the argument. The REST API supports both Java Types and Custom Types.

Java Types

REST KeyType/ValueType Corresponding Java Type

boolean

java.lang.Boolean

byte

java.lang.Byte

short

java.lang.Short

integer

java.lang.Integer

long

java.lang.Long

float

java.lang.Float

double

java.lang.Double

date

java.sql.Date

The date value should be in the format as specified in the valueOf(String) method in the Java documentation

Example: 2018-01-01

time

java.sql.Time

The time value should be in the format as specified in the valueOf(String) method in the Java documentation

Example: 01:01:01

timestamp

java.sql.Timestamp

The timestamp value should be in the format as specified in the valueOf(String) method in the Java documentation

Example: 2018-02-18%2001:01:01

uuid

java.util.UUID

IgniteUuid

org.apache.ignite.lang.IgniteUuid

The following example shows a put command with keyType=int and valueType=date:

http://[host]:[port]/ignite?cmd=put&key=1&val=2018-01-01&cacheName=myCache&keyType=int&valueType=date

Similarly, the get command with keyType=int and valueType=date would be:

http://[host]:[port]/ignite?cmd=get&key=1&cacheName=myCache&keyType=int&valueType=date

Custom Types

The JSON format is used to exchange complex custom objects via the Ignite REST protocol.

For example, let’s assume you have a Person class, and below is the JSON representation of an object instance that you need to send to the cluster:

 {
  "uid": "7e51118b",
  "name": "John Doe",
  "orgId": 5678901,
  "married": false,
  "salary": 156.1
 }

Next, you use this REST request to put the object in the cluster by setting the valueType parameter to Person and the val parameter to the value of the JSON object:

http://[host]:[port]/ignite?cacheName=testCache&cmd=put&keyType=int&key=1&valueType=Person
&val=%7B%0A+++++%22uid%22%3A+%227e51118b%22%2C%0A+++++%22name%22%3A+%22John+Doe%22%2C%0A+++++%22orgId%22%3A+5678901%2C%0A+++++%22married%22%3A+false%2C%0A+++++%22salary%22%3A+156.1%0A++%7D&

Once a server receives the request, it converts the object from the JSON into the internal binary object format following the conversion procedure below:

  • If the Person class exists and available on the server’s classpath, the JSON object is resolved to an instance of the Person class.

  • If the Person class is not available on the server’s classpath, but there is a QueryEntity object that defines the Person, then the JSON object is resolved to a binary object of that Person type:

    Query entity Binary Object (Person)
    <bean class="org.apache.ignite.cache.QueryEntity">
    <property name="keyType" value="java.lang.Integer"/>
    <property name="valueType" value="Person"/>
    <property name="fields">
    <map>
    <entry key="uid"     value="java.util.UUID"/>
    <entry key="name"    value="java.lang.String"/>
    <entry key="orgId"   value="java.lang.Long"/>
    <entry key="married" value="java.lang.Boolean"/>
    <entry key="salary"  value="java.lang.Float"/>
    </map>
    </property>
    </bean>
    "uid": "7e51118b",  // UUID
    "name": "John Doe", // string
    "orgId": 5678901,   // long
    "married": false,   // boolean
    "salary": 156.1     // float
  • Otherwise, the JSON object’s field types are resolved following the regular JSON convention:

    "uid": "7e51118b",   // string
    "name": "John Doe",  // string
    "orgId": 5678901,    // int
    "married": false,    // boolean
    "salary": 156.1      // double

The same conversion rules apply when you have a custom key type set via the keyType parameter of the Ignite REST protocol.

Returned Value

The HTTP REST request returns a JSON object which has a similar structure for each command:

Field Type Description Example

affinityNodeId

string

Affinity node ID.

2bd7b049-3fa0-4c44-9a6d-b5c7a597ce37

error

string

This field contains description of error if server could not handle the request.

Specifically for each command.

sessionToken

string

When authentication is enabled on the server, this field contains a session token that can be used with any command within that session. If authentication is off, this field contains null. When authentication is enabled - EF6013FF590348CE91DEAE9870183BEF

Otherwise, null.

response

jsonObject

This field contains the result of the command.

Specifically for each command.

successStatus

integer

Exit status code. It might have the following values:

success = 0

failed = 1

authorization failed = 2

security check failed = 3

0

REST API Reference

Version

Returns the Ignite version.

Request:
http://host:port/ignite?cmd=version
Response:
{
  "error": "",
  "response": "1.0.0",
  "successStatus": 0
}

Cluster State

Returns the current state of the cluster.

Request:
http://host:port/ignite?cmd=state
Response:

Returns true if the cluster is active. Returns false if the cluster in inactive.

{
  "successStatus":0,
  "error":null,
  "sessionToken":null,
  "response": "ACTIVE_READ_ONLY"
}

Change Cluster State

The setstate command changes the cluster state.

Request:
http://host:port/ignite?cmd=setstate&state={new_state}
Parameter Type Description

state

String

New cluster state. One of the values:

  • ACTIVE: active state,

  • ACTIVE_READ_ONLY: read only state,

  • INACTIVE: the cluster is deactivated.

Warning

Deactivation deallocates all memory resources, including your application data, on all cluster nodes and disables public cluster API. If you have in-memory caches that are not backed up by a persistent storage (neither native persistent storage nor external storage), you will lose the data and will have to repopulate these caches.

Response:
{
  "successStatus":0,
  "error":null,
  "sessionToken":null,
  "response":"setstate done"
}

Increment

Adds and gets current value of given atomic long.

Request:
http://host:port/ignite?cmd=incr&cacheName={cacheName}&key={incrKey}&init={initialValue}&delta={delta}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, default cache is used.

partitionedCache

key

string

The name of atomic long.

counter

init

long

Yes

Initial value.

15

delta

long

Number to be added.

42

Response:

The response contains the value after the operation.

{
  "affinityNodeId": "e05839d5-6648-43e7-a23b-78d7db9390d5",
  "error": "",
  "response": 42,
  "successStatus": 0
}

Decrement

Subtracts and gets current value of given atomic long.

Request:
http://host:port/ignite?cmd=decr&cacheName={cacheName}&key={key}&init={init_value}&delta={delta}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache ("default") is used.

partitionedCache

key

string

The name of atomic long.

counter

init

long

Yes

Initial value.

15

delta

long

Number to be subtracted.

42

Response:

The response contains the value after the operation.

{
  "affinityNodeId": "e05839d5-6648-43e7-a23b-78d7db9390d5",
  "error": "",
  "response": -42,
  "successStatus": 0
}

Cache Metrics

Shows metrics for a cache.

Request:
http://host:port/ignite?cmd=cache&cacheName={cacheName}&destId={nodeId}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:
{
  "affinityNodeId": "",
  "error": "",
  "response": {
    "hits": 0,
    "misses": 0,
    "reads": 0,
    "writes": 2
  },
  "successStatus": 0
}
Field Type Description Example

response

jsonObject

The JSON object contains cache metrics such as create time, count reads and etc.

{ "createTime": 1415179251551, "hits": 0, "misses": 0, "readTime":1415179251551, "reads": 0,"writeTime": 1415179252198, "writes": 2 }

Cache Size

Gets the number of all entries cached across all nodes.

Request:
http://host:port/ignite?cmd=size&cacheName={cacheName}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

Response:
{
  "affinityNodeId": "",
  "error": "",
  "response": 1,
  "successStatus": 0
}
Field Type Description Example

response

number

Number of all entries cached across all nodes.

5

Cache Metadata

Gets metadata for a cache.

Request:
http://host:port/ignite?cmd=metadata&cacheName={cacheName}
Parameter Type Optional Description Example

cacheName

String

Yes

Cache name. If not provided, metadata for all user caches is returned.

partitionedCache

Response:
{
  "error": "",
  "response": {
    "cacheName": "partitionedCache",
    "types": [
      "Person"
    ],
    "keyClasses": {
      "Person": "java.lang.Integer"
    },
    "valClasses": {
      "Person": "org.apache.ignite.Person"
    },
    "fields": {
      "Person": {
        "_KEY": "java.lang.Integer",
        "_VAL": "org.apache.ignite.Person",
        "ID": "java.lang.Integer",
        "FIRSTNAME": "java.lang.String",
        "LASTNAME": "java.lang.String",
        "SALARY": "double"
      }
    },
    "indexes": {
      "Person": [
        {
          "name": "ID_IDX",
          "fields": [
            "id"
          ],
          "descendings": [],
          "unique": false
        },
        {
          "name": "SALARY_IDX",
          "fields": [
            "salary"
          ],
          "descendings": [],
          "unique": false
        }
      ]
    }
  },
  "sessionToken": "",
  "successStatus": 0
}

Compare-And-Swap

Stores a given key-value pair in a cache only if the previous value is equal to the expected value passed in.

Request:
https://[host]:[port]/ignite?cmd=authenticate&ignite.login=[user]&ignite.password=[password]
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

key

string

Key to store in cache.

name

val

string

Value associated with the given key.

Jack

val2

string

Expected value.

Bob

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:

The response returns true if the value was replaced, false otherwise.

{
  "affinityNodeId": "1bcbac4b-3517-43ee-98d0-874b103ecf30",
  "error": "",
  "response": true,
  "successStatus": 0
}

Append

Appends a line for value which is associated with key.

Request:
http://host:port/ignite?cmd=append&key={appendKey}&val={_suffix}&cacheName={cacheName}&destId={nodeId}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

key

string

Key to store in cache.

name

val

string

Value to be appended to the current value.

Jack

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:
{
  "affinityNodeId": "1bcbac4b-3517-43ee-98d0-874b103ecf30",
  "error": "",
  "response": true,
  "successStatus": 0
}
Field Type Description Example

response

boolean

true if replace happened, false otherwise.

true

Prepend

Adds prefix to the value that is associated with a given key.

Request:
http://host:port/ignite?cmd=prepend&key={key}&val={value}&cacheName={cacheName}&destId={nodeId}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

myCache

key

string

Key to store in cache.

name

val

string

The string to be prepended to the current value.

Name_

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:
{
  "affinityNodeId": "1bcbac4b-3517-43ee-98d0-874b103ecf30",
  "error": "",
  "response": true,
  "successStatus": 0
}
Field Type Description Example

response

boolean

true if replace happened, false otherwise.

true

Replace

Stores a given key-value pair in a cache if the cache already contains the key.

Request:
http://host:port/ignite?cmd=rep&key=repKey&val=newValue&cacheName={cacheName}&destId={nodeId}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

key

string

Key to store in cache.

name

val

string

Value associated with the given key.

Jack

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

exp

long

Yes

Expiration time in milliseconds for the entry. When the parameter is set, the operation is executed with ModifiedExpiryPolicy.

60000

Response:

The response contains true if the value was replaced, false otherwise.

{
  "affinityNodeId": "1bcbac4b-3517-43ee-98d0-874b103ecf30",
  "error": "",
  "response": true,
  "successStatus": 0
}

Get

Retrieves the value mapped to a specified key from a cache.

Request:
http://host:port/ignite?cmd=get&key={getKey}&cacheName={cacheName}&destId={nodeId}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

key

string

Key whose associated value is to be returned.

testKey

keyType

Java built-in type

Yes

See Data Types for more details.

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Get All

Retrieves values mapped to the specified keys from a given cache.

Request:
http://host:port/ignite?cmd=getall&k1={getKey1}&k2={getKey2}&k3={getKey3}&cacheName={cacheName}&destId={nodeId}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

k1…​kN

string

Keys whose associated values are to be returned.

key1, key2, …​, keyN

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:
{
  "affinityNodeId": "",
  "error": "",
  "response": {
    "key1": "value1",
    "key2": "value2"
  },
  "successStatus": 0
}
Note

Get output as array

To obtain the output as an array, use the IGNITE_REST_GETALL_AS_ARRAY=true system property. Once the property is set, the getall command provides the response in the following format:

{“successStatus”:0,“affinityNodeId”:null,“error”:null,“sessionToken”:null,“response”:[{“key”:“key1”,“value”:“value1”},{“key”:“key2”,“value”:“value2”}]}

Get and Remove

Removes the given key mapping from cache and returns the previous value.

Request:
http://host:port/ignite?cmd=getrmv&cacheName={cacheName}&destId={nodeId}&key={key}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

key

string

Key whose mapping is to be removed from the cache.

name

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:
{
  "affinityNodeId": "1bcbac4b-3517-43ee-98d0-874b103ecf30",
  "error": "",
  "response": value,
  "successStatus": 0
}
Field Type Description Example

response

jsonObject

Value for the key.

{"name": "bob"}

Get and Put

Stores a given key-value pair in a cache and returns the existing value if there is one.

Request:
http://host:port/ignite?cmd=getput&key=getKey&val=newVal&cacheName={cacheName}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

key

string

Key to be associated with value.

name

val

string

Value to be associated with key.

Jack

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:

The response contains the previous value for the key.

{
  "affinityNodeId": "2bd7b049-3fa0-4c44-9a6d-b5c7a597ce37",
  "error": "",
  "response": {"name": "bob"},
  "successStatus": 0
}

Get and Put If Absent

Stores given key-value pair in cache only if cache had no previous mapping for it. If cache previously contained value for the given key, then this value is returned.

Request:
http://host:port/ignite?cmd=getputifabs&key=getKey&val=newVal&cacheName={cacheName}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

key

string

Key to be associated with value.

name

val

string

Value to be associated with key.

Jack

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:
{
  "affinityNodeId": "2bd7b049-3fa0-4c44-9a6d-b5c7a597ce37",
  "error": "",
  "response": "value",
  "successStatus": 0
}
Field Type Description Example

response

jsonObject

Previous value for the given key.

{"name": "bob"}

Get and Replace

Stores a given key-value pair in cache only if there is a previous mapping for it.

Request:
http://host:port/ignite?cmd=getrep&key={key}&val={val}&cacheName={cacheName}&destId={nodeId}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

key

string

Key to store in cache.

name

val

string

Value associated with the given key.

Jack

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:

The response contains the previous value associated with the specified key.

{
  "affinityNodeId": "1bcbac4b-3517-43ee-98d0-874b103ecf30",
  "error": "",
  "response": oldValue,
  "successStatus": 0
}
Field Type Description Example

response

jsonObject

The previous value associated with the specified key.

{"name": "Bob"}

Replace Value

Replaces the entry for a key only if currently mapped to a given value.

Request:
http://host:port/ignite?cmd=repval&key={key}&val={newValue}&val2={oldVal}&cacheName={cacheName}&destId={nodeId}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

key

string

Key to store in cache.

name

val

string

Value associated with the given key.

Jack

val2

string

Value expected to be associated with the specified key.

oldValue

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:
{
  "affinityNodeId": "1bcbac4b-3517-43ee-98d0-874b103ecf30",
  "error": "",
  "response": true,
  "successStatus": 0
}
Field Type Description Example

response

boolean

true if replace happened, false otherwise.

true

Remove

Removes the given key mapping from cache.

Request:
http://host:port/ignite?cmd=rmv&key={rmvKey}&cacheName={cacheName}&destId={nodeId}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

key

string

Key - for which the mapping is to be removed from cache.

name

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:
{
  "affinityNodeId": "1bcbac4b-3517-43ee-98d0-874b103ecf30",
  "error": "",
  "response": true,
  "successStatus": 0
}
Field Type Description Example

response

boolean

true if replace happened, false otherwise.

true

Remove All

Removes given key mappings from a cache.

Request:
http://host:port/ignite?cmd=rmvall&k1={rmKey1}&k2={rmKey2}&k3={rmKey3}&cacheName={cacheName}&destId={nodeId}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

k1…​kN

string

Keys whose mappings are to be removed from the cache.

name

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:
{
  "affinityNodeId": "1bcbac4b-3517-43ee-98d0-874b103ecf30",
  "error": "",
  "response": true,
  "successStatus": 0
}
Field Type Description Example

response

boolean

true if replace happened, false otherwise.

true

Remove Value

Removes the mapping for a key only if currently mapped to the given value.

Request:
http://host:port/ignite?cmd=rmvval&key={rmvKey}&val={rmvVal}&cacheName={cacheName}&destId={nodeId}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

key

string

Key whose mapping is to be removed from the cache.

name

val

string

Value expected to be associated with the specified key.

oldValue

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:
{
  "affinityNodeId": "1bcbac4b-3517-43ee-98d0-874b103ecf30",
  "error": "",
  "response": true,
  "successStatus": 0
}
Field Type Description Example

response

boolean

false if there was no matching key.

true

Add

Stores a given key-value pair in a cache if the cache does not contain the key.

Request:
http://host:port/ignite?cmd=add&key=newKey&val=newValue&cacheName={cacheName}&destId={nodeId}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

key

string

Key to be associated with the value.

name

val

string

Value to be associated with the key.

Jack

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

exp

long

Yes

Expiration time in milliseconds for the entry. When the parameter is set, the operation is executed with ModifiedExpiryPolicy.

60000

Response:
{
  "affinityNodeId": "1bcbac4b-3517-43ee-98d0-874b103ecf30",
  "error": "",
  "response": true,
  "successStatus": 0
}
Field Type Description Example

response

boolean

true if value was stored in cache, false otherwise.

true

Put

Stores a given key-value pair in a cache.

Request:
http://host:port/ignite?cmd=put&key=newKey&val=newValue&cacheName={cacheName}&destId={nodeId}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

key

string

Key to be associated with values.

name

val

string

Value to be associated with keys.

Jack

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

exp

long

Yes

Expiration time in milliseconds for the entry. When the parameter is set, the operation is executed with ModifiedExpiryPolicy.

60000

Response:
{
  "affinityNodeId": "1bcbac4b-3517-43ee-98d0-874b103ecf30",
  "error": "",
  "response": true,
  "successStatus": 0
}
Field Type Description Example

response

boolean

true if value was stored in cache, false otherwise.

true

Put all

Stores the given key-value pairs in cache.

Request:
http://host:port/ignite?cmd=putall&k1={putKey1}&k2={putKey2}&k3={putKey3}&v1={value1}&v2={value2}&v3={value3}&cacheName={cacheName}&destId={nodeId}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

k1…​kN

string

Keys to be associated with values.

name

v1…​vN

string

Values to be associated with keys.

Jack

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:
{
  "affinityNodeId": "1bcbac4b-3517-43ee-98d0-874b103ecf30",
  "error": "",
  "response": true,
  "successStatus": 0
}
Field Type Description Example

response

boolean

true if the values were stored in cache, false otherwise.

true

Put If Absent

Stores a given key-value pair in a cache if the cache does not contain the given key.

Request:
http://host:port/ignite?cmd=putifabs&key={getKey}&val={newVal}&cacheName={cacheName}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

key

string

Key to be associated with value.

name

val

string

Value to be associated with key.

Jack

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

exp

long

Yes

Expiration time in milliseconds for the entry. When the parameter is set, the operation is executed with ModifiedExpiryPolicy.

60000

Response:

The response field contains true if the entry was put, false otherwise.

{
  "affinityNodeId": "2bd7b049-3fa0-4c44-9a6d-b5c7a597ce37",
  "error": "",
  "response": true,
  "successStatus": 0
}

Contains Key

Determines if cache contains an entry for the specified key.

Request:
http://host:port/ignite?cmd=conkey&key={getKey}&cacheName={cacheName}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

key

string

Key whose presence in this cache is to be tested.

testKey

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:
{
  "affinityNodeId": "2bd7b049-3fa0-4c44-9a6d-b5c7a597ce37",
  "error": "",
  "response": true,
  "successStatus": 0
}
Field Type Description Example

response

boolean

true if this map contains a mapping for the specified key.

true

Contains keys

Determines if cache contains any entries for the specified keys.

Request:
http://host:port/ignite?cmd=conkeys&k1={getKey1}&k2={getKey2}&cacheName={cacheName}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

k1…​kN

string

Key whose presence in this cache is to be tested.

key1, key2, …​, keyN

destId

string

Yes

Node ID for which the metrics are to be returned.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:
{
  "affinityNodeId": "2bd7b049-3fa0-4c44-9a6d-b5c7a597ce37",
  "error": "",
  "response": true,
  "successStatus": 0
}
Field Type Description Example

response

boolean

true if this cache contains a mapping for the specified keys.

true

Get or Create Cache

Creates a cache with the given name if it does not exist.

Request:
http://host:port/ignite?cmd=getorcreate&cacheName={cacheName}
Parameter Type Optional Description

cacheName

String

Yes

Cache name. If not provided, the default cache is used.

backups

int

Yes

Number of backups for cache data. Default is 0.

dataRegion

String

Yes

Name of the data region the cache should belong to.

templateName

String

Yes

Name of the cache template registered in Ignite to use as a configuration for the distributed cache. See the Cache Template section for more information.

cacheGroup

String

Yes

Name of the group the cache should belong to.

writeSynchronizationMode

String

Yes

Sets the write synchronization mode for the given cache:

  • FULL_SYNC

  • FULL_ASYNC

  • PRIMARY_SYNC

Response:
{
  "error": "",
  "response": null,
  "successStatus": 0
}

Destroy cache

Destroys cache with given name.

Request:
http://host:port/ignite?cmd=destcache&cacheName={cacheName}
Parameter Type Optional Description Example

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

partitionedCache

Response:
{
  "error": "",
  "response": null,
  "successStatus": 0
}

Node

Gets information about a node.

Request:
http://host:port/ignite?cmd=node&attr={includeAttributes}&mtr={includeMetrics}&id={nodeId}&caches={includeCaches}
Parameter Type Optional Description Example

mtr

boolean

Yes

Response includes metrics, if this parameter is true.

true

attr

boolean

Yes

Response includes attributes, if this parameter is true.

true

ip

string

This parameter is optional, if id parameter is passed. Response is returned for node which has the IP.

192.168.0.1

id

string

This parameter is optional, if ip parameter is passed. Response is returned for node which has the node ID.

8daab5ea-af83-4d91-99b6-77ed2ca06647

caches

boolean

Yes

When set to true the cache information returned by node includes: name, mode, and SQL Schema.

When set to false the node command does not return any cache information.

Default value is true.

true

Response:
{
  "error": "",
  "response": {
    "attributes": null,
    "caches": {},
    "consistentId": "127.0.0.1:47500",
    "defaultCacheMode": "REPLICATED",
    "metrics": null,
    "nodeId": "2d0d6510-6fed-4fa3-b813-20f83ac4a1a9",
    "replicaCount": 128,
    "tcpAddresses": ["127.0.0.1"],
    "tcpHostNames": [""],
    "tcpPort": 11211
  },
  "successStatus": 0
}

Log

Shows server logs.

Request:
http://host:port/ignite?cmd=log&from={from}&to={to}&path={pathToLogFile}
Parameter Type Optional Description Example

from

integer

Yes

Number of line to start from. Parameter is mandatory if to is passed.

0

path

string

Yes

The path to log file. If not provided the a default one is used.

/log/cache_server.log

to

integer

Yes

Number to line to finish on. Parameter is mandatory if from is passed.

1000

Response:
{
  "error": "",
  "response": ["[14:01:56,626][INFO ][test-runner][GridDiscoveryManager] Topology snapshot [ver=1, nodes=1, CPUs=8, heap=1.8GB]"],
  "successStatus": 0
}

Topology

Gets the information about cluster topology.

Request:
http://host:port/ignite?cmd=top&attr=true&mtr=true&id=c981d2a1-878b-4c67-96f6-70f93a4cd241
Parameter Type Optional Description Example

mtr

boolean

Yes

Response will include metrics, if this parameter is true.

true

attr

boolean

Yes

Response will include attributes, if this parameter is true.

true

ip

string

Yes

This parameter is optional, if the id parameter is passed. Response will be returned for node which has the IP.

192.168.0.1

id

string

Yes

This parameter is optional, if the ip parameter is passed. Response will be returned for node which has the node ID.

8daab5ea-af83-4d91-99b6-77ed2ca06647

Response:
{
  "error": "",
  "response": [
    {
      "attributes": {
        ...
      },
      "caches": [
        {
          name: "",
          mode: "PARTITIONED"
        },
        {
          name: "partitionedCache",
          mode: "PARTITIONED",
          sqlSchema: "partitionedCache"
        }
      ],
      "consistentId": "127.0.0.1:47500",
      "metrics": {
        ...
      },
      "nodeId": "96baebd6-dedc-4a68-84fd-f804ee1ed995",
      "replicaCount": 128,
      "tcpAddresses": ["127.0.0.1"],
      "tcpHostNames": [""],
      "tcpPort": 11211
   },
   {
     "attributes": {
       ...
     },
		 "caches": [
       {
         name: "",
         mode: "REPLICATED"
       }
     ],
     "consistentId": "127.0.0.1:47501",
     "metrics": {
       ...
     },
     "nodeId": "2bd7b049-3fa0-4c44-9a6d-b5c7a597ce37",
     "replicaCount": 128,
     "tcpAddresses": ["127.0.0.1"],
     "tcpHostNames": [""],
     "tcpPort": 11212
   }
  ],
  "successStatus": 0
}

Execute a Task

Executes a given task in the cluster.

Request:
http://host:port/ignite?cmd=exe&name=taskName&p1=param1&p2=param2&async=true
Parameter Type Optional Description Example

name

string

Name of the task to execute.

summ

p1…​pN

string

Yes

Argument of task execution.

arg1…​argN

async

boolean

Yes

Determines whether the task is performed asynchronously.

true

Response:

The response contains an error message, unique identifier of the task, the status and result of computation.

{
  "error": "",
  "response": {
    "error": "",
    "finished": true,
    "id": "~ee2d1688-2605-4613-8a57-6615a8cbcd1b",
    "result": 4
  },
  "successStatus": 0
}

Result of a Task

Returns the computation result for a given task.

Request:
http://host:port/ignite?cmd=res&id={taskId}
Parameter Type Optional Description Example

id

string

ID of the task whose result is to be returned.

69ad0c48941-4689aae0-6b0e-4d52-8758-ce8fe26f497d~4689aae0-6b0e-4d52-8758-ce8fe26f497d

Response:

The response contains information about errors (if any), ID of the task, and the status and result of computation.

{
  "error": "",
  "response": {
    "error": "",
    "finished": true,
    "id": "69ad0c48941-4689aae0-6b0e-4d52-8758-ce8fe26f497d~4689aae0-6b0e-4d52-8758-ce8fe26f497d",
    "result": 4
  },
  "successStatus": 0
}

SQL Query Execute

Runs SQL query over cache.

Request:
http://host:port/ignite?cmd=qryexe&type={type}&pageSize={pageSize}&cacheName={cacheName}&arg1=1000&arg2=2000&qry={query}
Parameter Type Optional Description Example

type

string

Type for the query

String

pageSize

number

Page size for the query.

3

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

testCache

arg1…​argN

string

Query arguments

1000,2000

qry

strings

Encoding sql query

salary+%3E+%3F+and+salary+%3C%3D+%3F

keepBinary

boolean

Yes

do not deserialize binary objects, false by default

true

Response:

The response object contains the items returned by the query, a flag indicating the last page, and queryId.

{
  "error":"",
  "response":{
    "fieldsMetadata":[],
    "items":[
      {"key":3,"value":{"name":"Jane","id":3,"salary":2000}},
      {"key":0,"value":{"name":"John","id":0,"salary":2000}}],
    "last":true,
    "queryId":0},
  "successStatus":0
}

SQL Fields Query Execute

Runs SQL fields query over cache.

Request:
http://host:port/ignite?cmd=qryfldexe&pageSize=10&cacheName={cacheName}&qry={qry}
Parameter Type Optional Description Example

pageSize

number

Page size for the query.

3

cacheName

string

Yes

Cache name. If not provided, the default cache is used.

testCache

arg1…​argN

string

Query arguments.

1000,2000

qry

strings

Encoding sql fields query.

select+firstName%2C+lastName+from+Person

keepBinary

boolean

Yes

do not deserialize binary objects, false by default

true

Response:

The response object contains the items returned by the query, fields query metadata, a flag indicating the last page, and queryId.

{
  "error": "",
  "response": {
    "fieldsMetadata": [
      {
        "fieldName": "FIRSTNAME",
        "fieldTypeName": "java.lang.String",
        "schemaName": "person",
        "typeName": "PERSON"
      },
      {
        "fieldName": "LASTNAME",
        "fieldTypeName": "java.lang.String",
        "schemaName": "person",
        "typeName": "PERSON"
      }
    ],
    "items": [["Jane", "Doe" ], ["John", "Doe"]],
    "last": true,
    "queryId": 0
  },
  "successStatus": 0
}

SQL Scan Query Execute

Runs a scan query over a cache.

Request:
http://host:port/ignite?cmd=qryscanexe&pageSize={pageSize}&cacheName={cacheName}&className={className}
Parameter Type Optional Description Example

pageSize

Number

Page size for the query

3

cacheName

String

Yes

Cache name. If not provided, the default cache is used.

testCache

className

String

Yes

Predicate class name for scan query. Class should implement IgniteBiPredicate interface.

org.apache.ignite.filters.PersonPredicate

keepBinary

boolean

Yes

do not deserialize binary objects, false by default

true

Response:

The response object contains the items returned by the scan query, fields query metadata, a flag indicating last page, and queryId.

{
  "error": "",
  "response": {
    "fieldsMetadata": [
      {
        "fieldName": "key",
        "fieldTypeName": "",
        "schemaName": "",
        "typeName": ""
      },
      {
        "fieldName": "value",
        "fieldTypeName": "",
        "schemaName": "",
        "typeName": ""
      }
    ],
    "items": [
      {
        "key": 1,
        "value": {
          "firstName": "Jane",
          "id": 1,
          "lastName": "Doe",
          "salary": 1000
        }
      },
      {
        "key": 3,
        "value": {
          "firstName": "Jane",
          "id": 3,
          "lastName": "Smith",
          "salary": 2000
        }
      }
    ],
    "last": true,
    "queryId": 0
  },
  "successStatus": 0
}

SQL Query Fetch

Gets next page for the query.

Request:
http://host:port/ignite?cmd=qryfetch&pageSize={pageSize}&qryId={queryId}
Parameter Type Optional Description Example

pageSize

number

Page size for the query.

3

qryId

number

Query id that is returned from the Sql query execute, sql fields query execute, or sql fetch commands.

0

Response:

The response object contains the items returned by the query, a flag indicating the last page, and queryId.

{
  "error":"",
  "response":{
    "fieldsMetadata":[],
    "items":[["Jane","Doe"],["John","Doe"]],
    "last":true,
    "queryId":0
  },
  "successStatus":0
}

SQL Query Close

Closes query resources.

Request:
http://host:port/ignite?cmd=qrycls&qryId={queryId}
Parameter Type Optional Description Example

qryId

number

Query id that is returned from the SQL query execute, SQL fields query execute, or SQL fetch commands.

0

Response:

The command returns 'true' if the query was closed successfully.

{
  "error":"",
  "response":true,
  "successStatus":0
}