# Camel-Kafka-connector Twitter Direct Message Source

This is an example for Camel-Kafka-connector Twitter Direct Message Source

## Standalone

### What is needed

- A Twitter App with Read, Write and direct message permissions

### Setting up Twitter App and get credentials

You'll need to create a twitter app and take note of access token, access token secret, consumer key and consumer secret.

### Running Kafka

```
$KAFKA_HOME/bin/zookeeper-server-start.sh $KAFKA_HOME/config/zookeeper.properties
$KAFKA_HOME/bin/kafka-server-start.sh $KAFKA_HOME/config/server.properties
$KAFKA_HOME/bin/kafka-topics.sh --create --bootstrap-server localhost:9092 --replication-factor 1 --partitions 1 --topic mytopic
```

### Setting up the needed bits and running the example

You'll need to setup the plugin.path property in your kafka

Open the `$KAFKA_HOME/config/connect-standalone.properties`

and set the `plugin.path` property to your choosen location

In this example we'll use `/home/oscerd/connectors/`

```
> cd /home/oscerd/connectors/
> wget https://repo1.maven.org/maven2/org/apache/camel/kafkaconnector/camel-twitter-directmessage-kafka-connector/0.10.0/camel-twitter-directmessage-kafka-connector-0.10.0-package.tar.gz
> untar.gz camel-twitter-directmessage-kafka-connector-0.10.0-package.tar.gz
```

Now it's time to setup the connectors

Open the Twitter source configuration file

```
name=CamelTwitter-directmessageSourceConnector
connector.class=org.apache.camel.kafkaconnector.twitterdirectmessage.CamelTwitterdirectmessageSourceConnector
key.converter=org.apache.kafka.connect.storage.StringConverter
value.converter=org.apache.kafka.connect.storage.StringConverter

topics=mytopic

camel.source.path.user=<account_id>
camel.source.endpoint.accessToken=<access_token>
camel.source.endpoint.accessTokenSecret=<access_token_secret>
camel.source.endpoint.consumerKey=<consumer_key>
camel.source.endpoint.consumerSecret=<consumer_secret>
camel.source.endpoint.type=polling
camel.source.endpoint.delay=60000
camel.source.endpoint.count=5
```

Set the correct options in the file for the credentials part.

Now you can run the example

```
$KAFKA_HOME/bin/connect-standalone.sh $KAFKA_HOME/config/connect-standalone.properties config/CamelTwitterdirectmessageSourceConnector.properties
```

In another terminal, using kafkacat, you can consume the messages

```
> ./kafkacat -b localhost:9092 -t mytopic
% Auto-selecting Consumer mode (use -P or -C to override)
DirectMessageJSONImpl{id=1331192592978030596, text='hello from ckc', senderId=xxxxx, recipientId=xxxxx, createdAt=Tue Nov 24 12:07:01 CET 2020, userMentionEntities=[], urlEntities=[], hashtagEntities=[], mediaEntities=[], symbolEntities=[]}
% Reached end of topic mytopic [0] at offset 1
```

