Version: 8.0.x

Trigger a Polling Channel

Manually trigger a polling channel#

The polling is configured in the same way as we do for normal channel configuration, however, we don't supply a urlPattern to match an incoming request on as the polling channel is triggered internally from the OpenHIM core based on the supplied cron pattern.

To manually trigger a polling channel request you will need to make a TLS request to the OpenHIM API for the below method and endpoint.

Method: POST
Endpoint: {openhim_url}:8080/channels/:channelId/trigger

Example#

Note: In the examples below, we are using the token authentication type to authenticate requests

Before we can send our request to the OpenHIM API we need to ensure that we construct our valid HTTP headers to successfully authenticate with the OpenHIM API.

NodeJS
Bash

Copy the below code at the bottom of your nodejs script that handles the authentication of the OpenHIM headers as described in the authentication section.

Replace the openhimOptions values with the correct implementation details

// append below code to the "openhim-api.js" script containing the authentication methods. 
// This is described within the authentication section

(async () => {
  const openhimOptions = {
    apiURL: 'https://localhost:8080',
    apiEndpoint: '/channels/channelId/trigger',
    username: '[email protected]',
    password: 'openhim-password',
    rejectUnauthorized: false
  }

  const headers = await genAuthHeaders(openhimOptions)
  
  const options = { 
    method: 'POST',
    url: `${openhimOptions.apiURL}${openhimOptions.apiEndpoint}`,
    rejectUnauthorized: openhimOptions.rejectUnauthorized,
    headers: headers
  }
  
  request(options, (error, response, body) => {
    if (error) throw new Error(error)
  
    console.log({
      statusCode: response.statusCode,
      body
    })
  })
})()

Execute the below command in your terminal to run the nodejs script

node openhim-api.js

The response status code will be 201 if successful.