Procedure

1. Expose the Data Grid service for external access.

   $ oc expose svc example-rhdg

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2. Create local variables for the public route and credentials.

   1. Export the host for the public route to a local variable.

      $ export DATAGRID_HOST=$(oc get route example-rhdg -o jsonpath="{.spec.host}")

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   2. Export the generated password from the secret to a local variable.

      $ export PASS=$(oc get secret example-rhdg-app-generated-secret -o jsonpath="{.data.password}" | base64 --decode)

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3. Store some data through the HTTP endpoint.

   $ curl -v \
       -X POST \
       -u developer:${PASS} \
       -H 'Content-type: text/plain' \
       -d 'test-value' \
       ${DATAGRID_HOST}/rest/default/test-key
   ...
   < HTTP/1.1 200 OK

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4. Retrieve the data from the Data Grid cluster.

   $ curl -v \
       -u developer:${PASS} \
       ${DATAGRID_HOST}/rest/default/test-key
   ...
   < HTTP/1.1 200 OK
   ...
   test-value

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