Example: Sending a JSON Request Using a REST Web Service Client

Use a JSON request to insert a record into a window in an ESP project.

Prerequisites
Task
  1. Use the esp_wsp.bat or esp_wsp.sh script in %ESP_HOME%\wsp to start the JETTY server and initialize the REST port.
  2. Open the ESP Studio and create a new project with a name of your choice. In
  3. Double-click the project configuration file (<yourprojectname>.ccr) to open the CCR Project Configuration editor. Include the following in your CCL file:
    CREATE INPUT WINDOW window1 
SCHEMA (booleanField boolean, integerField integer, longField long, stringField string, doubleField float,  timestampField TIMESTAMP, dateField date, bigdateField bigdatetime, intervalField interval, binaryField BINARY, money1Field money(1), money2Field money(2), money3Field money(3), money4Field money(4), money5Field money(5), money6Field money(6), money7Field money(7), money8Field money(8), money9Field money(9), money10Field money(10), money11Field money(11), money12Field money(12), money13Field money(13), money14Field money(14), money15Field money(15)) 
PRIMARY KEY (integerField);
  4. Select the Advanced tab.
  5. Set the value of the Web Service Enabled option to true in the Project Deployment Details window.
  6. Save the updated ccr file.
    The <yourprojectname>.ccr file now has an entry, <Option name="ws-enabled" value="true"/>, to show that Web service accessibility is enabled.
  7. If the project is started, for the changes to take effect, use Studio or esp_cluster_admin to stop and remove the project from the node, then redeploy (add) the project. Or restart the cluster on which the project runs.
  8. Send the following JSON request using your REST client:

    Type: POST

    Header 
    http://<serverName>:9091/espws/restservice/stream/window1?action=insert&workspace=default&project=project1
    Body
    {
    "connectionDetails": {
        "clusterName": "<serverName>",
        "port": "19011",
        "authentication": {
            "type": "user",
            "data": "<espUserName>:<password>",
            "sslEnabled": "true"
        }
    },
    "content": {
        "booleanField": "true",
        "integerField": "1",
        "longField": "12345",
        "stringField": "abcd",
        "doubleField": "12345",
        "timestampField": "2013-07-16 03:25:10.111",
        "dateField": "2013-07-16 15:25:10.111",
        "bigdateField": "2013-08-24T09:45:23.543221",
        "intervalField": "1234",
        "binaryField": "17",
        "money1Field": "10.1",
        "money2Field": "10.12",
        "money3Field": "10.123",
        "money4Field": "10.1234",
        "money5Field": "10.12345",
        "money6Field": "10.123456",
        "money7Field": "10.1234567",
        "money8Field": "10.12345678",
        "money9Field": "10.123456789",
        "money10Field": "10.1234567891",
        "money11Field": "10.12345678912",
        "money12Field": "10.123456789123",
        "money13Field": "10.1234567891234",
        "money14Field": "10.12345678912345",
        "money15Field": "10.123456789123456"
    }
}
  1. A new record is added to the window window1 in the ESP Studio.
Parent topic: Configuring the ESP Web Services Provider