IOTA

Since Camel 2.23

Only producer is supported

According to IOTA Official site: "IOTA is the first open-source distributed ledger that is being built to power the future of the Internet of Things with feeless microtransactions and data integrity for machines."

Maven users will need to add the following dependency to their pom.xml for this component:

<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-iota</artifactId>
    <version>x.y.z</version>
    <!-- use the same version as your Camel core version -->
</dependency>

Options

The IOTA component supports 2 options, which are listed below.

Name Description Default Type

lazyStartProducer (producer)

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

boolean

basicPropertyBinding (advanced)

Whether the component should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities

false

boolean

The IOTA endpoint is configured using URI syntax:

iota:name

with the following path and query parameters:

Path Parameters (1 parameters):

Name Description Default Type

name

Required Component name

String

Query Parameters (9 parameters):

Name Description Default Type

depth (producer)

The depth determines how deep the tangle is analysed for getting Tips

9

Integer

lazyStartProducer (producer)

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

boolean

minWeightMagnitude (producer)

The minWeightMagnitude is the minimum number of zeroes that a proof-of-work output/transaction hash must end with to be considered valid by full nodes

14

Integer

operation (producer)

Required Which operation to perform, one of: sendTransfer, getNewAddress, getTransfers. The value can be one of: sendTransfer, getNewAddress, getTransfers

String

tag (producer)

TAG

String

url (producer)

Required Node url

String

basicPropertyBinding (advanced)

Whether the endpoint should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities

false

boolean

synchronous (advanced)

Sets whether synchronous processing should be strictly used, or Camel is allowed to use asynchronous processing (if supported).

false

boolean

securityLevel (security)

Address security level

1

Integer

Sample route

The following route defined in Spring XML send a message to tangle

Send message to tangle

<route>
  <from uri="direct:start" />
  <setMessage>
  	<constant>Hello world!</constant>
  </setMessage>
  <setHeader name="CamelIOTASeed">
  	<constant>MYSEEDHERE</constant>
  </setHeader>
  <setHeader name="CamelIOTAValue">
  	<constant>1</constant>
  </setHeader>
  <setHeader name="CamelIOTAToAddress">
  	<constant>RECIPIENTADDRESS</constant>
  </setHeader>
  <setHeader name="CamelIOTAToAddress">
  	<constant>RECIPIENTADDRESS</constant>
  </setHeader>
  <to uri="iota:good?url=https://node.iota.org:443&amp;operation=sendTransfer" />
  <to uri="direct:result" />
</route>

The following route defined in Spring XML create a new address

Create a new address

<route>
  <from uri="direct:start" />
  <setHeader name="CamelIOTASeed">
  	<constant>MYSEEDHERE</constant>
  </setHeader>
  <setHeader name="CamelIOTAAddressIndex">
  	<constant>1</constant>
  </setHeader>
  <to uri="iota:good?url=https://node.iota.org:443&amp;operation=getNewAddress" />
  <to uri="direct:result" />
</route>

The following route defined in Spring XML retrieve transfers data

Retrieve transfers

<route>
  <from uri="direct:start" />
  <setHeader name="CamelIOTASeed">
  	<constant>MYSEEDHERE</constant>
  </setHeader>
  <setHeader name="CamelIOTAAddressStartIndex">
  	<constant>1</constant>
  </setHeader>
  <setHeader name="CamelIOTAAddressEndIndex">
  	<constant>10</constant>
  </setHeader>
  <to uri="iota:good?url=https://node.iota.org:443&amp;operation=getTransfers" />
  <to uri="direct:result" />
</route>

Spring Boot Auto-Configuration

When using iota with Spring Boot make sure to use the following Maven dependency to have support for auto configuration:

<dependency>
  <groupId>org.apache.camel.springboot</groupId>
  <artifactId>camel-iota-starter</artifactId>
  <version>x.x.x</version>
  <!-- use the same version as your Camel core version -->
</dependency>

The component supports 3 options, which are listed below.

Name Description Default Type

camel.component.iota.enabled

Whether to enable auto configuration of the iota component. This is enabled by default.

Boolean

camel.component.iota.lazy-start-producer

Whether the producer should be started lazy (on the first message). By starting lazy you can use this to allow CamelContext and routes to startup in situations where a producer may otherwise fail during starting and cause the route to fail being started. By deferring this startup to be lazy then the startup failure can be handled during routing messages via Camel’s routing error handlers. Beware that when the first message is processed then creating and starting the producer may take a little time and prolong the total processing time of the processing.

false

Boolean

camel.component.iota.basic-property-binding

Deprecated Whether the component should use basic property binding (Camel 2.x) or the newer property binding with additional capabilities

false

Boolean