Read Transaction/s

To read existing transaction records you will need to make a TLS request to the OpenHIM API for the below method and endpoint.

Read all transactions

Method: GET

Endpoint: {openhim_url}:8080/transactions?[filters]

The following query parameters are supported:

• filterLimit: The max number of transactions to return
• filterPage: The page to return (used in conjunction with filterLimit)
• filterRepresentation: Determines how much information for a transaction to return; options are
  • simple: minimal transaction information
  • simpledetails: minimal transaction information, but with more fields than simple
  • bulkrerun: minimal transaction information required in order to determine rerun status
  • full: Full transaction information
  • fulltruncate: The same as full except that large transaction bodies will be truncated
• channelID: Only return transactions that are linked to the specified channel
• filters: Advanced filters specified as an object. Transaction fields can be specified based on the transaction schema. For example, in order to filter by response status 200 and a property called prop with a value val, the following query could be used: /transactions?filterLimit=100&filterPage=0&filters=%7B%22response.status%22:%22200%22,%22properties%22:%7B%22prop%22:%22val%22%7D%7D

Read client's transactions

Method: GET

Endpoint: {openhim_url}:8080/transactions/clients/:clientId

Read a specific transaction

Method: GET

Endpoint: {openhim_url}:8080/transactions/:transactionId

Example Fetch transactions

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

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: '/transactions',

username: '[email protected]',

password: 'openhim-password',

rejectUnauthorized: false

}

const headers = await genAuthHeaders(openhimOptions)

const options = { method: 'GET',

url: `${openhimOptions.apiURL}${openhimOptions.apiEndpoint}`,

rejectUnauthorized: openhimOptions.rejectUnauthorized,

headers: headers,

qs: {

filterLimit: 5,

filterPage: 0,

filterRepresentation: 'full'

}

}

request(options, (error, response, body) => {

if (error) throw new Error(error)

console.log({

statusCode: response.statusCode,

body

})

})

})()

Bash

Ensure that you have created your bash script to construct the HTTP authentication headers and send the request to the OpenHIM API as described in the authentication section.

Execute the below command in your terminal where the file is located with the required arguments. Replace the placeholder arguments with the correct implementation details.

./openhim-api.sh [email protected] openhim-password -v "https://localhost:8080/transactions?filterLimit=5&filterPage=0&filterRepresentation=full"

The response status code will be 200 if successful.