Can't properly format request

Questions
,
1

Hey team,

I’m using the Function node to build a properly formatted event hit according to Facebook’s documentation.

However, the output is wrapped in an array… I need to return the object directly inside of that array.

Here is the function code:

const json = items[0].json;
const body = json.body;

const results = {};
const user_data = {};
const custom_data = {};
const data = [];

// Build User Data Object
user_data.em = body.sha256;

// Build Custom Data Object
custom_data.source = "IDR";


// Build FB Event
results.event_time = Math.round(Date.now() / 1000);
results.event_name = "IDR Lead";
results.action_source = "system_generated";
results.user_data = user_data;
results.custom_data = custom_data;

console.log('results', results);

data.push(results);

return {data}

Here is the sample output that does NOT work

[
{
"data": [
{
"event_time": 1664381138,
"event_name": "IDR Lead",
"action_source": "system_generated",
"user_data": {
"em": "Test value"
},
"custom_data": {
"source": "IDR"
}
}
]
}
]

This is the result that WOULD work

{
"data": [
{
"event_time": 1664381138,
"event_name": "IDR Lead",
"action_source": "system_generated",
"user_data": {
"em": "Test value"
},
"custom_data": {
"source": "IDR"
}
}
]
}

Any ideas on how I can send the data to Facebook without the extra array wrapper?

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2

Hey @StocktonF,

That looks like we could do with updating that node a bit, Have you tried adding the query options using the Add Options in the node?

3

Hi @Jon ,

Is that something I can do to get this to work? Or you mean the team would have to modify the Facebook API node?

I don’t think it would work in the params… Facebook wants it in the POST body…

4

That is annoying, What about using the json to binary node and sending it as binary data does that change anything?

I don’t have a facebook account I can test with sadly so it is a bit of a tricky one to test with. If Facebook expect it in the post body we should maybe have an option to specify the body contents a but like we do for the HTTP Request node.

5

Got it, yes that would be nice.

So what do I do from here?

Do I need to wait for the team to make that update? If so, how long does that usually take?

6

Hey @StocktonF,

At some point I will need to set up a Facebook account so I can test it it could be that we clean the data up in the node so I will take a look at the code as well to see what we are doing.

7

Hey @StocktonF,

Thanks for sending the test credentials, I have now managed to get it working. The workflow below shows what I have done, One thing I did have to do was update em to use a hash as it turns out Facebook doesn’t like the unhashed values being sent (Parameter für Kundeninformationen - Conversions API - Dokumentation - Facebook for Developers)

8

Wow, thank you so much for diving into this…

My question is WHY?!

How does the binary data work?

9

Hey @StocktonF,

It is magic :magic_wand:

To be honest I am not sure, I was looking at the nodes code and from what I could see it doesn’t just take the input to post it and needs the binary option which is sent as the body in the request.

I am going to pop open a feature request internally for this node as it took a bit of work to understand what needs to actually happen with it… It could be that I have missed something with it as well but I feel we can do better with this one.