除了在Vlasec回答中推荐的步骤，您还可以使用:

图形API资源管理器进行查询，例如/{pageId}?= access_token&access_token = THE_ACCESS_TOKEN_PROVIDED_BY_GRAPH_EXPLORER字段 访问令牌调试器以获取有关访问令牌的信息。

除了在Vlasec回答中推荐的步骤，您还可以使用:

图形API资源管理器进行查询，例如/{pageId}?= access_token&access_token = THE_ACCESS_TOKEN_PROVIDED_BY_GRAPH_EXPLORER字段 访问令牌调试器以获取有关访问令牌的信息。

以下是我的解决方案，只使用图形API资源管理器和访问令牌调试器:

Graph API Explorer: Select your App from the top right dropdown menu Select "Get User Access Token" from dropdown (right of access token field) and select needed permissions Copy user access token Access Token Debugger: Paste copied token and press "Debug" Press "Extend Access Token" and copy the generated long-lived user access token Graph API Explorer: Paste copied token into the "Access Token" field Make a GET request with "PAGE_ID?fields=access_token" Find the permanent page access token in the response (node "access_token") (Optional) Access Token Debugger: Paste the permanent token and press "Debug" "Expires" should be "Never"

(API版本2.9-2.11,3.0-3.1测试)

我根据donut的回答创建了一个小的NodeJS脚本。将以下文件存储在名为get-facebook-access-token.js的文件中:

const fetch = require('node-fetch');
const open = require('open');

const api_version = 'v9.0';
const app_id = '';
const app_secret = '';
const short_lived_token = '';
const page_name = '';

const getPermanentAccessToken = async () => {
  try {
    const long_lived_access_token = await getLongLivedAccessToken();
    const account_id = await getAccountId(long_lived_access_token);
    const permanent_page_access_token = await getPermanentPageAccessToken(
      long_lived_access_token,
      account_id
    );
    checkExpiration(permanent_page_access_token);
  } catch (reason) {
    console.error(reason);
  }
};

const getLongLivedAccessToken = async () => {
  const response = await fetch(
    `https://graph.facebook.com/${api_version}/oauth/access_token?grant_type=fb_exchange_token&client_id=${app_id}&client_secret=${app_secret}&fb_exchange_token=${short_lived_token}`
  );
  const body = await response.json();
  return body.access_token;
};

const getAccountId = async (long_lived_access_token) => {
  const response = await fetch(
    `https://graph.facebook.com/${api_version}/me?access_token=${long_lived_access_token}`
  );
  const body = await response.json();
  return body.id;
};

const getPermanentPageAccessToken = async (
  long_lived_access_token,
  account_id
) => {
  const response = await fetch(
    `https://graph.facebook.com/${api_version}/${account_id}/accounts?access_token=${long_lived_access_token}`
  );
  const body = await response.json();
  const page_item = body.data.find(item => item.name === page_name);  
  return page_item.access_token;
};

const checkExpiration = (access_token) => {
  open(`https://developers.facebook.com/tools/debug/accesstoken/?access_token=${access_token}&version=${api_version}`);
}

getPermanentAccessToken();

填入常量，然后运行:

npm install node-fetch
npm install open
node get-facebook-access-token.js

运行脚本后，浏览器中会打开一个页面，显示令牌及其有效期。

While getting the permanent access token I followed above 5 steps as Donut mentioned. However in the 5th step while generating permanent access token its returning the long lived access token(Which is valid for 2 months) not permanent access token(which never expires). what I noticed is the current version of Graph API is V2.5. If you trying to get the permanent access token with V2.5 its giving long lived access token.Try to make API call with V2.2(if you are not able to change version in the graph api explorer,hit the API call https://graph.facebook.com/v2.2/{account_id}/accounts?access_token={long_lived_access_token} in the new tab with V2.2) then you will get the permanent access token(Which never expires)

截至2020年4月，我之前的永久页面令牌开始在1到12小时内到期。我开始使用具有manage_pages权限的用户令牌来实现前面的目标(轮询页面的事件)。这些代币似乎是永久的。

我根据这篇文章中找到的信息创建了一个python脚本，托管在github.com/k-funk/facebook_permanent_token上，以跟踪需要哪些参数，以及获取永久令牌的方法是有效的。