Only the first value is returned for parameters that have multiple values. The value of the query string portion of the URL, or null if no query string is specified name=alice&n=1&n=2Īn object of key/value pairs that correspond to the request parameters. ![]() ![]() The structure of the event object is shown in the table In both cases, the eĪrgument represents an event parameter that can contain information about any POST request, Apps Script runs doPost(e) instead. When a user visits an app or a program sends the app an HTTP GET request,Īpps Script runs the function doGet(e). The function returns an HTML service HtmlOutput object or a.It contains a doGet(e) or doPost(e) function.Requirements for web appsĪ script can be published as a web app if it meets these requirements: Screen Capture and download 25 Screenshot - 1Click Screenshot 23 Web Screen Capture 33 Easy Screenshot - a Web Clipper 69 Fast Screenshot 40 ImageCap - image download and capture 27. Web apps, so long as they meet the requirements below. Scripts bound to Google Workspace applications Users can access it directly from their browsers. Members of a support team would best be presented as a web app so that It allows you to download a World Wide Web site from the Internet to a. For example, a script that lets users schedule appointments with HTTrack is a free (GPL, libre/free software) and easy-to-use offline browser utility. As you'll see below, this function can be used to download different types of files.If you build a user interface for a script, you can publish the script as a The fetchUrl() function accepts the url as input and fetches the content at that url. You can also use UrlFetchApp to download files. So far we've seen how to use UrlFetchApp to retrieve the contents of a web page. Examples on how to use UrlFetchApp to download files In short, if your application needs to handle scenarios where the UrlFetch could fail, then you should set muteHttpExceptions to true. Instead, your code can see what the response from the server is and then display user-friendly messages if the request errors out. In this case, you might want to set muteHttpExceptions to true so your code does not fail completely. Users could make mistakes (typos) when entering the URL. On the other hand, if you know that your code might try to access a URL that does not exist OR if your goal is to check whether a website is working or not and take some action based on this information, then set muteHttpExceptions to true.įor example, consider an application that allows users to enter a URL that it then fetches content from. If you want your code to fail when the HTTP request fails, then set muteHttpExceptions to false. Therefore, to get automatic screenshots of website pages, you will need Pikwy screenshot service and a cloud service for creating Google Apps Script. function fetchExample() When should you set muteHttpExceptions to false and when should you set it to true? The function fetchExample() below fetches the content at the URL and logs it. APIs enable applications to talk to one another. What is an API?ĪPI stands for Application Programming Interface. The information returned can then be processed by your script. The information at the URL is then returned in response to the request. For example, you can use UrlFetch to make GET or POST requests. The UrlFetch API is used to make HTTP requests to URLs. When should you set muteHTTPExceptions to true? How to use UrlFetchApp to maKE POST requests to submit data? How to use UrlFetchApp to download JSON data? How to set a header when making requests using UrlFetchApp?Įxamples on how to use UrlFetchApp to download files How to configure the UrlFetch request in Apps Script? ![]() This tutorial assumes that you're familiar with:īasic coding concepts (If you're new to coding, please check out a series of tutorials that I've written on learning to code using Google Sheets and Apps Script.) Uploading data from your Google Sheets spreadsheet to another application like Notion, Airtable, Evernote or Coda To view these logs, at the top of the editor, click Execution log. Posting data to a web form (such as a Google Form) A basic approach to logging in Apps Script is to use the built-in execution log. The use cases below showcase the different ways in which you can use UrlFetchApp in Apps Script:ĭownloading files that are accessible via a URL using Apps ScriptĬhecking to see if your website is up or down It is a very useful API since it lets you connect your Google Sheets spreadsheet to the rest of the digital world. The UrlFetch API allows you to access websites and web applications from Apps Script. A comprehensive guide to UrlFetchApp in Apps Script ✨
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