EmailAnalyzer.gs

function myFunction() {
  
  
  //Get a particular label used in Gmail
  var label = GmailApp.getUserLabelByName('wordpress'); 
  
  //Get threads within tagged with this label 
  var threads = label.getThreads();  
  
  //Loop through threads and get messages
  threads.forEach(function(thread){ 
    var messages = thread.getMessages(); 
    
    messages.forEach(function(message){
      
      //Start collecting text for analysis and 
      //anything else you want logged to the SS
      var subject = message.getSubject();
      var body = message.getPlainBody(); 
      
      //This is the payload format for the Azure Text Analytics service
      //Could easily send more than one document, upper limit might be 100 or something 
      var payload = {
        "documents": [
          {
            "language": "en", 
            "id": "1", 
            "text": body
          }
        ]
      }; 
      
      //Create params for UrlFetch, note the custom headers which Azure needs
      //Replace Ocp-Apim-Subscription-Key with your key
      var params = {
        "method": "post", 
        "payload": JSON.stringify(payload), 
        "headers": {
          "Ocp-Apim-Subscription-Key": "yourkeygoeshere", 
          "Content-Type": "application/json", 
          "Accept": "application/json"
        }
      
      }
      //Make synchronus requests to API. It would be nice if there were on endpoint and different flags or options, but right now
      //you have to do a request for each thing you want analyzed
      //**Your endpoint may be different. You get this through Azure
      var phrases = UrlFetchApp.fetch('https://westus.api.cognitive.microsoft.com/text/analytics/v2.0/keyPhrases', params); 
      var sentiment = UrlFetchApp.fetch('https://westus.api.cognitive.microsoft.com/text/analytics/v2.0/sentiment', params); 
      
      //Parse responses from JSON string and extract values 
      var sentimentScore = JSON.parse(sentiment).documents[0].score; 
      var keyPhrases = JSON.parse(phrases).documents[0].keyPhrases;

      var phraseString = keyPhrases.join(", "); 
      Logger.log(keyPhrases); 
      
      //Dump everything into a new row of the SS
      var contents = [subject, body, sentimentScore, phraseString ]; 
      SpreadsheetApp.getActiveSpreadsheet().getActiveSheet().appendRow(contents)
      
      
      
    }) 
    
  }); 
}