Uploading Files to firebase cloud storage


This topic has been a dead end since we are all still waiting for the Blob support. Not until recently the good Expo dev @wcandillon managed to come up with a work around (see here … show some love for the man). The approach worked very well with me on iOS how ever on Android I get this Network request failed error:

and this is how the code looks like:

uploadImage(uri, name, type) {
    return new Promise(async (resolve, reject) => {
      const body = new FormData();
      body.append("picture", {
        uri: uri,
        type: type
      await fetch(`${cloudFunctionApiUrl}`, {
        method: "POST",
        headers: {
          Accept: "application/json",
         "Content-Type": "multipart/form-data"
      }).then(async() => {
        console.log("getting download url now ...");
        const url = await firebase.storage().ref(path).getDownloadURL();
      }).catch(error => {

So any clue why this is happening ?



I noticed that overall the networking on Android is a tiny bit less reliable than iOS. And if you are using the 3-tier version of the Cloud function there are some severe quota restrictions applied that might cause such networking error. I’m having the same problem where this error comes up once in a while an Android. I hope that we will find a good solution for this issue.

Blob support has been merged in React Native and hopefully we will be able to use it in Expo soon.

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closed #3

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