Hooks are custom code that can run at different stages during the execution of a flow to modify the behavior of export and import processes. You can use different types of hooks at each step of the integration process to perform advanced functions.
Note: Hooks typically modify the JSON records in your flow’s data, including any records parsed from a file exported from a server or uploaded in Data Loader. Hooks cannot make changes to a “blob” (file download passed intact within a flow).
The following table lists the script formats available for each export hook type:
| Hook type | JavaScript | Stack | SuiteScript 1.0 | SuiteScript 2.0 |
|---|---|---|---|---|
|
x |
x |
|||
|
x |
x |
Hook types
- Script – integrator.io manages and executes your code
- Stack – Your own server or AWS lambda hosts your code
Contents
preSave hook
You can use this hook to format, filter, and perform logic on the data coming from your export before it moves on to the rest of your data flow. Logic that applies to the data at all steps of the integration should be done at this stage of the flow, such as the following typical requirements:
- Filter out data at a line level
- Apply calculations to the data (sum of lines, calculate discounts).
- Complex data formatting (turn comma-separated text into an array)
- Perform data validation
The Pre save hook is invoked after the export of a page is complete but before the page is sent to the destination application (import or lookup) for processing. You can use this hook to add or delete records or modify the existing records present in the data.
The Pre save hook function is passed an options argument and a callback argument.
Options argument fields
The first argument (options) has the following fields:
| Field Name | Description |
| bearerToken | A one-time bearer token which can be used to invoke selected integrator.io API routes. |
| preview | A Boolean flag used to indicate that this export is being used by the integrator.io UI to get a sample of the data being exported. |
| data | An array of records representing one page of data. An individual record can be an object {}, or an array [] depending on the data source. |
| errors | An array of errors where each error has the following structure:
{
|
| _exportId | The _exportId currently running. |
| _connectionId | The _connectionId currently running. |
| _flowId | The _flowId currently running. |
| _integrationId | The _integrationId currently running. |
| pageIndex | 0 based. context is the batch export currently running. This is sent to Pre save hooks so that developers know which page is being processed. |
| lastExportDateTime | This variable is sent to Pre save hooks for delta flows so that developers can programmatically exclude records using these dynamic date values. |
| currentExportDateTime | This variable is sent to Pre save hooks for delta flows so that developers can programmatically exclude records using these dynamic date values. |
| settings | A container object for all the SmartConnector settings associated with the integration (applicable to SmartConnectors only). |
| configuration | An optional configuration object that can be set directly on the export resource (to further customize the hooks behavior). |
Callback arguments
The function can use the following callback arguments:
| Argument Name | Description |
| err | An error object to signal a fatal exception and will stop the flow. |
| responseData | An object that has the following structure:
{
"data":[],
"errors":[{
"code":"",
"message":"",
"source":""
}],
"abort":"true|false"
}
|
| data | Your modified data. |
| errors | Your modified errors. |
| abort | Instruct the batch export currently running to stop generating new pages of data.
module.hooks.preSavePageFunction = function (options, callback) {
This function is invoked at the end of the data record after the transformations and the filters. It’s the last step before the export record is passed to the destination app. The functions are available in a drop-down menu at the top of your script editor. |
Example
This example runs on a set of JSON data that returns the customer’s email address in an object within an array called identity-profiles that then has objects containing of a type and value property. This hook will find the object with the type of EMAIL and set the corresponding value to the main level of the object.
function preSavePageFunction (options) {
for(var i=0; i < options.data.length; i++){
if(!options.data[i]['identity-profiles'] || options.data[i]['identity-profiles'].length < 1){
break;
}
var emailFound = false;
for(var j=0; j < options.data[i]['identity-profiles'].length; j++){
if(options.data[i]['identity-profiles'][j].identities){
for(var k=0; k < options.data[i]['identity-profiles'][j].identities.length; k++){
if(options.data[i]['identity-profiles'][j].identities[k].type != "EMAIL")
continue;
options.data[i].email = options.data[i]['identity-profiles'][j].identities[k].value;
emailFound = true;
break;
}
}
if(emailFound)
break;
}
}
return {
data: options.data,
errors: options.errors
}
}
Comments
5 comments
Excellent article as I get into more javascript hooks. Question: in testing and using the preview functionality of the j-hook window, is there a way to preview with more than a single object in the data[] array? Even with "All" selected in the initial export flow step, I only get data[0].
Thank you!
Jim Kelleher
(As an aside, love that you use i, j, and k as iteration variables. Takes me back to my Fortran days.)
Hi PSA Admin!
Thanks so much for the great feedback! Speaking of old languages, I still try to forget my COBOL days! ;-D I'm checking into the answer on this for you and will get back to you asap.
Hi PSA Admin,
For now, you need to copy and paste or type in additional records into the data[] arg. We're looking at having the ability to preview more than one record in the export panel for next year, which will make this process easier. You letting us know about this need is helping us consider adding the ability to pull more than one record into the Advanced Field Editors (AFEs), so thank you!
I would also like the same functionality described by PSA Admin. Whenever I need to test against more than one object I must copy it from the debugger and then paste it into the template. It would save a lot of time to have this functionality.
Hi Shane Brown,
Thanks so much for letting us know. Could you post this enhancement idea to our community in the enhancement requests area? We are working on a feature to store and view sample data throughout the flow to show how it's being impacted at each step, as a result of PSA Admin's insights in improving this experience. Would you be interested in previewing what we're designing now?
PSA Admin, we're already planning to show you what we're working on :). Thank you so much for your invaluable help!
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