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Obtención de URL
Este servicio permite que las secuencias de comandos accedan a otros recursos en la Web mediante la recuperación de URLs. Una secuencia de comandos puede usar el servicio UrlFetch para emitir solicitudes HTTP y HTTPS, y recibir respuestas. El servicio UrlFetch usa la infraestructura de red de Google para fines de eficiencia y escalamiento.
Las solicitudes que se realizan con este servicio provienen de un grupo establecido de rangos de IP. Puedes buscar la lista completa de direcciones IP si necesitas incluir estas solicitudes en la lista de entidades permitidas o aprobarlas.
La cadena de usuario-agente predeterminada de las solicitudes del servicio de UrlFetch es Mozilla/5.0 (compatible; Google-Apps-Script; beanserver; +https://script.google.com; id: SCRIPT_ID).
Este servicio requiere el permiso https://www.googleapis.com/auth/script.external_request. En la mayoría de los casos, Apps Script detecta e incluye automáticamente los permisos que necesita una secuencia de comandos, pero si configuras tus permisos de forma explícita, debes agregarlos de forma manual para usar UrlFetchApp.
[[["Fácil de comprender","easyToUnderstand","thumb-up"],["Resolvió mi problema","solvedMyProblem","thumb-up"],["Otro","otherUp","thumb-up"]],[["Falta la información que necesito","missingTheInformationINeed","thumb-down"],["Muy complicado o demasiados pasos","tooComplicatedTooManySteps","thumb-down"],["Desactualizado","outOfDate","thumb-down"],["Problema de traducción","translationIssue","thumb-down"],["Problema con las muestras o los códigos","samplesCodeIssue","thumb-down"],["Otro","otherDown","thumb-down"]],["Última actualización: 2025-07-26 (UTC)"],[[["\u003cp\u003eThe URL Fetch service enables Apps Script to make HTTP and HTTPS requests to access external web resources, leveraging Google's infrastructure.\u003c/p\u003e\n"],["\u003cp\u003eRequests originate from a specific range of IP addresses, which can be whitelisted if necessary for security purposes.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003ehttps://www.googleapis.com/auth/script.external_request\u003c/code\u003e scope is required and often automatically included, but needs manual addition for explicitly set scopes.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eUrlFetchApp\u003c/code\u003e class handles the fetching process with methods like \u003ccode\u003efetch()\u003c/code\u003e and \u003ccode\u003efetchAll()\u003c/code\u003e, while \u003ccode\u003eHTTPResponse\u003c/code\u003e provides access to response data like headers, content, and status codes.\u003c/p\u003e\n"]]],["The UrlFetch service enables scripts to access web resources via HTTP and HTTPS requests, utilizing Google's network infrastructure. Scripts can fetch URLs using `UrlFetchApp` methods like `fetch` and `fetchAll`. IP ranges are provided for whitelisting purposes. The service requires the `https://www.googleapis.com/auth/script.external_request` scope. `HTTPResponse` methods provide ways to extract response data, headers, and status codes. The user agent is `Mozilla/5.0 (compatible; Google-Apps-Script; beanserver)`.\n"],null,["# URL Fetch Service\n\nURL Fetch\n\nThis service allows scripts to access other resources on the web by fetching\nURLs. A script can use the UrlFetch service to issue HTTP and HTTPS requests and\nreceive responses. The UrlFetch service uses Google's network infrastructure for\nefficiency and scaling purposes.\n\nRequests made using this service originate from a set pool of IP ranges. You can [look up the full list of IP addresses](https://www.gstatic.com/ipranges/goog.json)\nif you need to whitelist or approve these requests.\n\nThe default user agent string of UrlFetch service requests is\n`Mozilla/5.0 (compatible; Google-Apps-Script; beanserver; +https://script.google.com; id: `\u003cvar translate=\"no\"\u003eSCRIPT_ID\u003c/var\u003e`)`.\n\nThis service requires the `https://www.googleapis.com/auth/script.external_request`\nscope. In most cases Apps Script automatically detects and includes scopes a script needs, but\nif you are\n[setting your scopes explicitly](/apps-script/concepts/scopes#setting_explicit_scopes)\nyou must manually add this scope to use `Url``Fetch``App`.\n\n#### See also\n\n- [HTTPResponse](/apps-script/reference/url-fetch/http-response)\n- [Setting explicit scopes](/apps-script/concepts/scopes#setting_explicit_scopes)\n\nClasses\n-------\n\n| Name | Brief description |\n|----------------------------------------------------------------|---------------------------------------------------------------------------|\n| [HTTPResponse](/apps-script/reference/url-fetch/http-response) | This class allows users to access specific information on HTTP responses. |\n| [UrlFetchApp](/apps-script/reference/url-fetch/url-fetch-app) | Fetch resources and communicate with other hosts over the Internet. |\n\n[HTTPResponse](/apps-script/reference/url-fetch/http-response)\n--------------------------------------------------------------\n\n### Methods\n\n| Method | Return type | Brief description |\n|--------------------------------------------------------------------------------------------------|---------------------------|-----------------------------------------------------------------------------------------------------------------------------|\n| [getAllHeaders()](/apps-script/reference/url-fetch/http-response#getAllHeaders()) | `Object` | Returns an attribute/value map of headers for the HTTP response, with headers that have multiple values returned as arrays. |\n| [getAs(contentType)](/apps-script/reference/url-fetch/http-response#getAs(String)) | [Blob](../base/blob.html) | Return the data inside this object as a blob converted to the specified content type. |\n| [getBlob()](/apps-script/reference/url-fetch/http-response#getBlob()) | [Blob](../base/blob.html) | Return the data inside this object as a blob. |\n| [getContent()](/apps-script/reference/url-fetch/http-response#getContent()) | `Byte[]` | Gets the raw binary content of an HTTP response. |\n| [getContentText()](/apps-script/reference/url-fetch/http-response#getContentText()) | `String` | Gets the content of an HTTP response encoded as a string. |\n| [getContentText(charset)](/apps-script/reference/url-fetch/http-response#getContentText(String)) | `String` | Returns the content of an HTTP response encoded as a string of the given charset. |\n| [getHeaders()](/apps-script/reference/url-fetch/http-response#getHeaders()) | `Object` | Returns an attribute/value map of headers for the HTTP response. |\n| [getResponseCode()](/apps-script/reference/url-fetch/http-response#getResponseCode()) | `Integer` | Get the HTTP status code (200 for OK, etc.) of an HTTP response. |\n\n[UrlFetchApp](/apps-script/reference/url-fetch/url-fetch-app)\n-------------------------------------------------------------\n\n### Methods\n\n| Method | Return type | Brief description |\n|-----------------------------------------------------------------------------------------------------|------------------------------------------------------------------|------------------------------------------------------------------------------------|\n| [fetch(url)](/apps-script/reference/url-fetch/url-fetch-app#fetch(String)) | [HTTPResponse](/apps-script/reference/url-fetch/http-response) | Makes a request to fetch a URL. |\n| [fetch(url, params)](/apps-script/reference/url-fetch/url-fetch-app#fetch(String,Object)) | [HTTPResponse](/apps-script/reference/url-fetch/http-response) | Makes a request to fetch a URL using optional advanced parameters. |\n| [fetchAll(requests)](/apps-script/reference/url-fetch/url-fetch-app#fetchAll(Object)) | [HTTPResponse[]](/apps-script/reference/url-fetch/http-response) | Makes multiple requests to fetch multiple URLs using optional advanced parameters. |\n| [getRequest(url)](/apps-script/reference/url-fetch/url-fetch-app#getRequest(String)) | `Object` | Returns the request that is made if the operation was invoked. |\n| [getRequest(url, params)](/apps-script/reference/url-fetch/url-fetch-app#getRequest(String,Object)) | `Object` | Returns the request that is made if the operation were invoked. |"]]
