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Showing content from https://developers.google.com/apps-script/reference/url-fetch/url-fetch-app below:

Class UrlFetchApp | Apps Script

Skip to main content Class UrlFetchApp

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UrlFetchApp

Fetch resources and communicate with other hosts over the Internet.

This service allows scripts to communicate with other applications or access other resources on the web by fetching URLs. A script can use the URL Fetch service to issue HTTP and HTTPS requests and receive responses. The URL Fetch service uses Google's network infrastructure for efficiency and scaling purposes.

Requests made using this service originate from a set pool of IP ranges. You can look up the full list of IP addresses if you need to allowlist or approve these requests.

This service requires the https://www.googleapis.com/auth/script.external_request scope. In most cases Apps Script automatically detects and includes the scopes a script needs, but if you are setting your scopes explicitly you must manually add this scope to use UrlFetchApp.

See also Detailed documentation fetch(url)

Makes a request to fetch a URL.

This works over HTTP as well as HTTPS.

// The code below logs the HTML code of the Google home page.
const response = UrlFetchApp.fetch('http://www.google.com/');
Logger.log(response.getContentText());
Parameters Name Type Description url String The URL to fetch. The URL can have up to 2,082 characters. Return

HTTPResponse — The HTTP response data.

Scripts that use this method require authorization with one or more of the following scopes:

fetch(url, params)

Makes a request to fetch a URL using optional advanced parameters.

This works over HTTP as well as HTTPS.

// Make a GET request and log the returned content.
const response = UrlFetchApp.fetch('http://www.google.com/');
Logger.log(response.getContentText());
// Make a POST request with form data.
const resumeBlob = Utilities.newBlob('Hire me!', 'text/plain', 'resume.txt');
const formData = {
  name: 'Bob Smith',
  email: 'bob@example.com',
  resume: resumeBlob,
};
// Because payload is a JavaScript object, it is interpreted as
// as form data. (No need to specify contentType; it automatically
// defaults to either 'application/x-www-form-urlencoded'
// or 'multipart/form-data')
const options = {
  method: 'post',
  payload: formData,
};
UrlFetchApp.fetch('https://httpbin.org/post', options);
// Make a POST request with a JSON payload.
const data = {
  name: 'Bob Smith',
  age: 35,
  pets: ['fido', 'fluffy'],
};
const options = {
  method: 'post',
  contentType: 'application/json',
  // Convert the JavaScript object to a JSON string.
  payload: JSON.stringify(data),
};
UrlFetchApp.fetch('https://httpbin.org/post', options);
Parameters Name Type Description url String The URL to fetch. The URL can have up to 2,082 characters. params Object The optional JavaScript object specifying advanced parameters as defined below. Advanced parameters Name Type Description contentType String the content type (defaults to 'application/x-www-form-urlencoded'). Another example of content type is 'application/xml; charset=utf-8'. headers Object a JavaScript key/value map of HTTP headers for the request method String the HTTP method for the request: get, delete, patch, post, or put. The default is get. payload String the payload (that is, the POST body) for the request. Certain HTTP methods (for example, GET) do not accept a payload. It can be a string, a byte array, a blob, or a JavaScript object. A JavaScript object is interpreted as a map of form field names to values, where the values can be either strings or blobs. useIntranet Boolean Deprecated. This instructs fetch to resolve the specified URL within the intranet linked to your domain through (deprecated) SDC validateHttpsCertificates Boolean If false the fetch ignores any invalid certificates for HTTPS requests. The default is true. followRedirects Boolean If false the fetch doesn't automatically follow HTTP redirects; it returns the original HTTP response. The default is true. muteHttpExceptions Boolean If true the fetch doesn't throw an exception if the response code indicates failure, and instead returns the HTTPResponse. The default is false. escaping Boolean If false reserved characters in the URL aren't escaped. The default is true. Return

HTTPResponse — The HTTP response data.

Authorization

Scripts that use this method require authorization with one or more of the following scopes:

fetchAll(requests)

Makes multiple requests to fetch multiple URLs using optional advanced parameters.

This works over HTTP as well as HTTPS.

// Make both a POST request with form data, and a GET request.
const resumeBlob = Utilities.newBlob('Hire me!', 'text/plain', 'resume.txt');
const formData = {
  name: 'Bob Smith',
  email: 'bob@example.com',
  resume: resumeBlob,
};
// Because payload is a JavaScript object, it is interpreted as
// as form data. (No need to specify contentType; it defaults to either
// 'application/x-www-form-urlencoded' or 'multipart/form-data')
const request1 = {
  url: 'https://httpbin.org/post',
  method: 'post',
  payload: formData,
};
// A request may also just be a URL.
const request2 = 'https://httpbin.org/get?key=value';
UrlFetchApp.fetchAll([request1, request2]);
Parameters Name Type Description requests Object[] An array of either URLs or JavaScript objects specifying requests as defined below. Advanced parameters Name Type Description url String the URL to fetch. The URL can have up to 2,082 characters. contentType String the content type (defaults to 'application/x-www-form-urlencoded'). Another example of content type is 'application/xml; charset=utf-8'. headers Object a JavaScript key/value map of HTTP headers for the request method String the HTTP method for the request: get, delete, patch, post, or put. The default is get. payload String the payload (that is, the POST body) for the request. Certain HTTP methods (for example, GET) do not accept a payload. It can be a string, a byte array, a blob, or a JavaScript object. A JavaScript object is interpreted as a map of form field names to values, where the values can be either strings or blobs. useIntranet Boolean Deprecated. This instructs fetch to resolve the specified URL within the intranet linked to your domain through (deprecated) SDC validateHttpsCertificates Boolean If false the fetch ignores any invalid certificates for HTTPS requests. The default is true. followRedirects Boolean If false the fetch doesn't automatically follow HTTP redirects; it returns the original HTTP response. The default is true. muteHttpExceptions Boolean If true, the fetch doesn't throw an exception if the response code indicates failure, and instead returns the HTTPResponse. The default is false. escaping Boolean If false, reserved characters in the URL are not escaped. The default is true. Return

HTTPResponse[] — An array of HTTP response data from each input request.

Authorization

Scripts that use this method require authorization with one or more of the following scopes:

getRequest(url)

Returns the request that is made if the operation was invoked.

This method does not actually issue the request.

// The code below logs the value for every key of the returned map.
const response = UrlFetchApp.getRequest('http://www.google.com/');
for (const i in response) {
  Logger.log(`${i}: ${response[i]}`);
}
Parameters Name Type Description url String The URL to look up. The URL can have up to 2,082 characters. Return

Object — A map of Field Name to Value. The map has at least the following keys: url, method, contentType, payload, and headers.

Authorization

Scripts that use this method require authorization with one or more of the following scopes:

getRequest(url, params)

Returns the request that is made if the operation were invoked.

This method does not actually issue the request.

Parameters Name Type Description url String The URL to look up. The URL can have up to 2,082 characters. params Object An optional JavaScript object specifying advanced parameters as defined below. Advanced parameters Name Type Description contentType String the content type (defaults to 'application/x-www-form-urlencoded'). Another example of content type is 'application/xml; charset=utf-8'. headers Object a JavaScript key/value map of HTTP headers for the request method String the HTTP method for the request: get, delete, patch, post, or put. The default is get. payload String the payload (that is, the POST body) for the request. Certain HTTP methods (for example, GET) do not accept a payload. It can be a string, a byte array, a blob, or a JavaScript object. A JavaScript object is interpreted as a map of form field names to values, where the values can be either strings or blobs. useIntranet Boolean Deprecated. This instructs fetch to resolve the specified URL within the intranet linked to your domain through (deprecated) SDC validateHttpsCertificates Boolean If false the fetch ignores any invalid certificates for HTTPS requests. The default is true. followRedirects Boolean If false the fetch doesn't automatically follow HTTP redirects; it returns the original HTTP response. The default is true. muteHttpExceptions Boolean If true the fetch doesn't throw an exception if the response code indicates failure, and instead returns the HTTPResponse. The default is false. escaping Boolean If false reserved characters in the URL aren't be escaped. The default is true. Return

Object — A map of Field Name to Value. The map has at least the following keys: url, method, contentType, payload, and headers.

Authorization

Scripts that use this method require authorization with one or more of the following scopes:

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2024-12-02 UTC.

[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-12-02 UTC."],[[["`UrlFetchApp` enables Google Apps Script to fetch URLs and communicate with other applications over the internet using HTTP and HTTPS requests."],["It leverages Google's network infrastructure for efficiency and scalability, with requests originating from a specific range of IP addresses."],["The service offers methods like `fetch()`, `fetchAll()`, and `getRequest()` to perform various HTTP operations, allowing developers to interact with web resources."],["To use `UrlFetchApp`, the `https://www.googleapis.com/auth/script.external_request` scope is required, either automatically detected or manually added when setting explicit scopes."]]],[]]


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