How to post to Google Docs Form directly - c

Question

I'm working on a project where i need to post the data i acquire to a Google form and obtain the data from the spreadsheet. I cannot use google apps script and need a method using the direct POST method as i will be doing this function from a GSM module. All the solutions posted previously take into consideration the old structure of the Google form which provides a form key.Like the solution described in this one:
http://www.open-electronics.org/how-send-data-from-arduino-to-google-docs-spreadsheet/
The link to my current form is this.
https://docs.google.com/forms/d/14MkYG3fPNezzUC_nXUsWHlZ5JhplvjyWTAeob7f_W7g/viewform
Any help would be appreciated.

Answer 1

Is it a requirement that a google form be in the middle of this? If it is enough to be able to post your data to a spreadsheet, here's a Google-Apps-Script for one side of the problem: a simple web service that will accept form data as a query string, and write that to your spreadsheet.
This examples assumes a very simple spreadsheet, with three columns, "Timestamp", "col1" and "col2". Edit the code to suit your situation.
You can see the spreadsheet here, and even make a test post.
/**
* doGet() function to add data to a spreadsheet.
*
* Spreadsheet data is provided as a querystring, e.g. ?col1=1&col2='pizza'
*
* From: http://stackoverflow.com/a/18725479/1677912
*
* #param {event} e Event passed to doGet, with querystring
* #returns {String/html} Html to be served
*
* Test URLs (adjust ID as needed):
* https://script.google.com/macros/s/--DEV-SCRIPT-ID--/dev?col1=1&col2='pizza'
* https://script.google.com/macros/s/--PUB-SCRIPT-ID--/exec?col1=1&col2='pizza'
*/
function doGet(e) {
Logger.log( JSON.stringify(e) ); // view parameters
var result = 'Ok'; // assume success
if (e.parameter == undefined) {
result = 'No Parameters';
}
else {
var id = '--SHEET-ID---'; // Spreadsheet id for responses
var sheet = SpreadsheetApp.openById(id).getActiveSheet();
var newRow = sheet.getLastRow() + 1;
var rowData = [];
rowData[0] = new Date(); // Timestamp
for (var param in e.parameter) {
Logger.log('In for loop, param='+param);
var value = stripQuotes(e.parameter[param]);
//Logger.log(param + ':' + e.parameter[param]);
switch (param) {
case 'col1':
rowData[1] = value;
break;
case 'col2':
rowData[2] = value;
break;
default:
result = "unsupported parameter";
}
}
Logger.log(JSON.stringify(rowData));
// Write new row to spreadsheet
var newRange = sheet.getRange(newRow, 1, 1, rowData.length);
newRange.setValues([rowData]);
}
// Return result of operation
return ContentService.createTextOutput(result);
}
/**
* Remove leading and trailing single or double quotes
*/
function stripQuotes( value ) {
return value.replace(/^["']|['"]$/g, "");
}

Answer 2

You can do the sending with the new forms, there is a menu option for it. (Responses->Get prefill url) It gives the url for posting data to a form.
You also asked: "obtain the data from the spreadsheet":There are two ways, google apps script and gdata style "google-spreadsheet-api". But I suggest you use a mix of google apps script and "arduino" style code, as it has better docs and features than gdata style api.
p.s. I created some formulas for creating an "arduino" user interface a while back.