Firebase gets download URL after successfully uploading image to firebase storage

Question

I am trying to upload a single image to a Firebase repository, and then grab its download URL and assign it to a variable.

I can upload my image to firebase successfully, however I cannot upload the download url. this is what i have already tried.

upload() {
    let storageRef = firebase.storage().ref();
    let success = false;

    for (let selectedFile of [(<HTMLInputElement>document.getElementById('file')).files[0]]) {
      let router = this.router;
      let af = this.af;
      let folder = this.folder;
      let path = `/${this.folder}/${selectedFile.name}`;
      var iRef = storageRef.child(path);
      iRef.put(selectedFile).then((snapshot) => {
        console.log('Uploaded a blob or file! Now storing the reference at', `/${this.folder}/images/`);
        af.list(`/${folder}/images/`).push({ path: path, filename: selectedFile.name })
      });
    }

    // This part does not work
    iRef.getDownloadURL().then((url) => {this.image = url});
    console.log('IREF IS ' + iRef)
    console.log('IMAGEURL IS ' + this.image)

  }

The console logs are as follows:

    IREF IS gs://my-app-159520.appspot.com/images/Screen Shot 2017-08-14 at 12.19.01.png
    view-order.component.ts:134 IMAGEURL IS undefined
Uploaded a blob or file! Now storing the reference at /images/images/

I am trying to use the iRef link to capture a downloadable url, but I keep getting errors. I am trying to grab a url, so I can assign it to this.image and then save it in my database using another function.

Answer 1

API . , downloadURL

  snapshot.ref.getDownloadURL().then(function(downloadURL) {
    console.log("File available at", downloadURL);
  });

Answer 2

, , , , , downloadURL . :

upload() {
    let storageRef = firebase.storage().ref();
    let success = false;

    for (let selectedFile of [(<HTMLInputElement>document.getElementById('file')).files[0]]) {
      let router = this.router;
      let af = this.af;
      let folder = this.folder;
      let path = `/${this.folder}/${selectedFile.name}`;
      var iRef = storageRef.child(path);
      iRef.put(selectedFile).then((snapshot) => {

        // added this part which as grabbed the download url from the pushed snapshot
        this.image = snapshot.downloadURL;

        console.log('Uploaded a blob or file! Now storing the reference at', `/${this.folder}/images/`);
        af.list(`/${folder}/images/`).push({ path: path, filename: selectedFile.name })

        console.log('DOWNLOAD URL IS ' + this.image)
      });
    }

  }

, URL- , , !

, , put, : downloadURL, :

this.image = snapshot.downloadURL;

, - !

Answer 3

2019 URL- firebase :

const uploadImage = async(uri) => {
  const response = await fetch(uri);
  const blob = await response.blob();
  // child arg specifies the name of the image in firebase
  const ref = firebase.storage().ref().child(guid());
  ref.put(blob).then(snapshot => {
    snapshot.ref.getDownloadURL().then(url => {
      console.log(' * new url', url)
    })
  })
}