linkedin-back.js

router.post("/linkedin-sso-response", async (req, res) => {
  try {
    if (!req.body.redirectUri || !req.body.authCode) {
      return res.json({ msg: "Some Error occured! Try again" });
    }
    const { authCode, redirectUri } = req.body;
    const clientId = config.get("clientId");
    const clientSecret = config.get("clientSecret");
    var response = await axios.get(
      `https://www.linkedin.com/oauth/v2/accessToken?grant_type=authorization_code&client_id=${clientId}&client_secret=${clientSecret}&code=${authCode}&redirect_uri=${redirectUri}`
    );
    const accessToken = response.data ? response.data.access_token : "";
    const configA = {
      headers: {
        "Content-Type": "application/json",
        Authorization: `Bearer ${accessToken}`,
      },
    };
    const userData = await axios.get("https://api.linkedin.com/v2/me", configA);
    const name =
      userData.data.localizedFirstName + userData.data.localizedLastName
        ? userData.data.localizedFirstName +
          " " +
          userData.data.localizedLastName
        : "";

    const profilePicture = await axios.get(
      "https://api.linkedin.com/v2/me?projection=(id,firstName,lastName,profilePicture(displayImage~:playableStreams))",
      configA
    );

    const elements =
      profilePicture.data.profilePicture["displayImage~"].elements;
    const identifier =
      elements && elements.length > 0
        ? elements[elements.length - 1].identifiers
        : {};
    const profilePic = identifier && identifier[0] && identifier[0].identifier;

    const emailData = await axios.get(
      "https://api.linkedin.com/v2/clientAwareMemberHandles?q=members&projection=(elements*(name,primary,type,handle~))",
      configA
    );

    const emailUser =
      emailData.data && emailData.data.elements && emailData.data.elements[0]
        ? emailData.data.elements[0]["handle~"].emailAddress
        : "";

    if (emailUser && name) {
      return res.json({
        name: name,
        profilePic: profilePic,
        email: emailUser,
      });
    } else {
      return res.json({ msg: "Some Error occured! Try again" });
    }
  } catch (err) {
    // console.log(err)
    return res.status(500).json(err);
  }
});