API call from google sheets is too long - api

Question

I am trying to write a script in google sheets to update my 3commas bots. The API requires a number of mandatory fields are passed even when there's only 1 item that needs to be updated.
The code I have is below and it uses the values already read from the platform updating only the base_order_volume value. This works perfectly except for when the pairs value is long (more the 2k chars) and then I get an error from the UrlFetchApp call because the URL is too long.
var sheet = SpreadsheetApp.getActiveSheet();
var key = sheet.getRange('F4').getValue();
var secret = sheet.getRange('F5').getValue();
var baseUrl = "https://3commas.io";
var editBots = "/ver1/bots/"+bots[botCounter].id+"/update";
var patchEndPoint = "/public/api"+editBots+"?";
.
.
[loop around values in sheet]
.
.
var BaseOrder=Number(sheet.getRange(rowCounter,12).getValue().toFixed(2));
var botParams = {
"name": bots[botCounter].name,
"pairs": bots[botCounter].pairs,
"max_active_deals": bots[botCounter].max_active_deals,
"base_order_volume": BaseOrder,
"take_profit": Number(bots[botCounter].take_profit),
"safety_order_volume": bots[botCounter].safety_order_volume,
"martingale_volume_coefficient": bots[botCounter].martingale_volume_coefficient,
"martingale_step_coefficient": Number(bots[botCounter].martingale_step_coefficient),
"max_safety_orders": bots[botCounter].max_safety_orders,
"active_safety_orders_count": Number(bots[botCounter].active_safety_orders_count),
"safety_order_step_percentage": Number(bots[botCounter].safety_order_step_percentage),
"take_profit_type": bots[botCounter].take_profit_type,
"strategy_list": bots[botCounter].strategy_list,
"bot_id": bots[botCounter].id
};
var keys = Object.keys(botParams);
var totalParams = keys.reduce(function(q, e, i) {
q += e + "=" + encodeURIComponent(JSON.stringify(botParams[e])) + (i != keys.length - 1 ? "&" : "");
return q;
},endPoint);
var signature = Utilities.computeHmacSha256Signature(totalParams, secret);
signature = signature.map(function(e) {return ("0" + (e < 0 ? e + 256 : e).toString(16)).slice(-2)}).join("");
var headers = {
'APIKEY': key,
'Signature': signature,
};
try {
var params = {
'method': 'PATCH',
'headers': headers,
'muteHttpExceptions': true
};
var response = JSON.parse(UrlFetchApp.fetch(baseUrl + totalParams, params).getContentText());
I have tried to set the botParams as a payload in the params but when I do the signature is incorrect.
I anyone knows how to use sheets to make a call using extensive length of parameters I'd appreciate any help at all
Some sample data for the bots array would be
{
"name": "TestBot",
"base_order_volume": 0.001,
"take_profit": 1.5,
"safety_order_volume": 0.001,
"martingale_volume_coefficient": 2,
"martingale_step_coefficient": 1,
"max_safety_orders": 1,
"active_safety_orders_count": 1,
"safety_order_step_percentage": 2.5,
"take_profit_type": "total",
"stop_loss_percentage": 0,
"cooldown": 0,
"pairs": ["BTC_ADA","BTC_TRX"],
"trailing_enabled":"true",
"trailing_deviation":0.5,
"strategy_list": [{"strategy":"cqs_telegram"}]
}
Thanks in advance

Answer 1

I'd consider using a Cloud Function to either do the heavy lifting, or, if you're worried about costs, use it as a proxy. You can then call the cloud function from Google Sheets. Cloud Functions can be written in whatever language you're most comfortable with, including Node.
Check the GCP pricing calculator to see what the cost would be. For many cases it would be completely free.
This should give you a sense of how to use cloud functions for CSV creation:
https://codelabs.developers.google.com/codelabs/cloud-function2sheet#0
Here is a SO question with an answer that explains how to query cloud functions with authentication.