Chapter 38. MongoDB Sink
Send documents to MongoDB.
This Kamelet expects a JSON as body.
Properties you can set as headers:
-
db-upsert/ce-dbupsert: if the database should create the element if it does not exist. Boolean value.
38.1. Configuration Options
The following table summarizes the configuration options available for the mongodb-sink Kamelet:
| Property | Name | Description | Type | Default | Example |
|---|---|---|---|---|---|
| collection * | MongoDB Collection | Sets the name of the MongoDB collection to bind to this endpoint. | string | ||
| database * | MongoDB Database | Sets the name of the MongoDB database to target. | string | ||
| hosts * | MongoDB Hosts | Comma separated list of MongoDB Host Addresses in host:port format. | string | ||
| createCollection | Collection | Create collection during initialisation if it doesn’t exist. | boolean |
| |
| password | MongoDB Password | User password for accessing MongoDB. | string | ||
| username | MongoDB Username | Username for accessing MongoDB. | string | ||
| writeConcern | Write Concern | Configure the level of acknowledgment requested from MongoDB for write operations, possible values are ACKNOWLEDGED, W1, W2, W3, UNACKNOWLEDGED, JOURNALED, MAJORITY. | string |
Fields marked with an asterisk (*) are mandatory.
38.2. Dependencies
At runtime, the mongodb-sink Kamelet relies upon the presence of the following dependencies:
- camel:kamelet
- camel:mongodb
- camel:jackson
38.3. Usage
This section describes how you can use the mongodb-sink.
38.3.1. Knative Sink
You can use the mongodb-sink Kamelet as a Knative sink by binding it to a Knative object.
mongodb-sink-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
name: mongodb-sink-binding
spec:
source:
ref:
kind: Channel
apiVersion: messaging.knative.dev/v1
name: mychannel
sink:
ref:
kind: Kamelet
apiVersion: camel.apache.org/v1alpha1
name: mongodb-sink
properties:
collection: "The MongoDB Collection"
database: "The MongoDB Database"
hosts: "The MongoDB Hosts"
38.3.1.1. Prerequisite
Make sure you have "Red Hat Integration - Camel K" installed into the OpenShift cluster you’re connected to.
38.3.1.2. Procedure for using the cluster CLI
-
Save the
mongodb-sink-binding.yamlfile to your local drive, and then edit it as needed for your configuration. Run the sink by using the following command:
oc apply -f mongodb-sink-binding.yaml
38.3.1.3. Procedure for using the Kamel CLI
Configure and run the sink by using the following command:
kamel bind channel:mychannel mongodb-sink -p "sink.collection=The MongoDB Collection" -p "sink.database=The MongoDB Database" -p "sink.hosts=The MongoDB Hosts"
This command creates the KameletBinding in the current namespace on the cluster.
38.3.2. Kafka Sink
You can use the mongodb-sink Kamelet as a Kafka sink by binding it to a Kafka topic.
mongodb-sink-binding.yaml
apiVersion: camel.apache.org/v1alpha1
kind: KameletBinding
metadata:
name: mongodb-sink-binding
spec:
source:
ref:
kind: KafkaTopic
apiVersion: kafka.strimzi.io/v1beta1
name: my-topic
sink:
ref:
kind: Kamelet
apiVersion: camel.apache.org/v1alpha1
name: mongodb-sink
properties:
collection: "The MongoDB Collection"
database: "The MongoDB Database"
hosts: "The MongoDB Hosts"
38.3.2.1. Prerequisites
Ensure that you’ve installed the AMQ Streams operator in your OpenShift cluster and created a topic named my-topic in the current namespace. Make also sure you have "Red Hat Integration - Camel K" installed into the OpenShift cluster you’re connected to.
38.3.2.2. Procedure for using the cluster CLI
-
Save the
mongodb-sink-binding.yamlfile to your local drive, and then edit it as needed for your configuration. Run the sink by using the following command:
oc apply -f mongodb-sink-binding.yaml
38.3.2.3. Procedure for using the Kamel CLI
Configure and run the sink by using the following command:
kamel bind kafka.strimzi.io/v1beta1:KafkaTopic:my-topic mongodb-sink -p "sink.collection=The MongoDB Collection" -p "sink.database=The MongoDB Database" -p "sink.hosts=The MongoDB Hosts"
This command creates the KameletBinding in the current namespace on the cluster.
