Firebase cloud function http request crashing

Question

I'm trying to send expo push notification via firebase cloud functions, in order to send notifications from the web app to devices that have downloaded the mobile app.

When I send the request from Postman, it works just fine... i get the ok response and the notification shows up on my phone. But when I try to make the request from the web app, i get this in the functions log:

Function execution took 22 ms, finished with status: 'crash'

Any ideas why is this happening? Couldn't find anything to explain this so far.

Here's my function:

exports.reportNotification = functions.https.onRequest((request, response) => {
    const tokens = request.body.expoPushToken;
    let messages = [];
    tokens.forEach((token) =>
      messages.push({
        to: token,
        title: "title",
        body: "message",
        sound: "default",
        _displayInForeground: "true",
      })
    );

    fetch("https://exp.host/--/api/v2/push/send", {
      method: "POST",
      headers: {
        Accept: "application/json",
        "Accept-encoding": "gzip, deflate",
        "Content-Type": "application/json",
      },
      body: JSON.stringify(messages),
    })
      .then((res) => response.status(200).json({ res: res }))
      .catch((err) => response.status(400).json({ error: err }));
});

My post request on Postman:

{
    "expoPushToken": ["ExponentPushToken[xxx-xxxxxxxxxxxxx]"]
}

And I call the function with axios in the web app:

axios({
    url: "reportNotification",
    baseURL: functionsBaseURL,
    method: "post",
    data: {
        expoPushToken: tokens,
    },
})

I checked and the tokens on this request are in the same format that the one on Postman.

Thanks.

It looks like you're writing the error in the response to the called here: `.catch((err) => response.status(400).json({ error: err }));`. So if you log this response, what does it show? — Frank van Puffelen, Jun 22 '20 at 23:52
It says it's a network error, nothing more. Error: Network Error at createError (createError.js:16) at XMLHttpRequest.handleError (xhr.js:83) — Ribs, Jun 23 '20 at 10:56

score 1 · Answer 1 · answered Jun 25 '20 at 15:01

It was a cors problem, solved with this modification:

exports.reportNotification = functions.https.onRequest((request, response) => {
  cors(request, response, () => {
    const tokens = request.body.expoPushToken;
    let messages = [];
    tokens.forEach((token) =>
      messages.push({
        to: token,
        title: "title",
        body: "message",
        sound: "default",
        _displayInForeground: "true",
      })
    );

    axios.post("https://exp.host/--/api/v2/push/send", JSON.stringify(messages), {
      headers: {
        "Accept": "application/json",
        "Accept-encoding": "gzip, deflate",
        "Content-Type": "application/json",
      },
    })
      .then((res) => response.status(200).json({ res: res }))
      .catch((err) => response.status(200).json({ error: err }));
  });
});

Firebase cloud function http request crashing

1 Answers1

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