getDownloadURL（）在reactjs中不起作用

Question

我正在尝试使用Firebase存储进行图像上传。图像已成功添加到图像文件夹下的存储中。 但是我无法从当前状态的getDownloadUrl（）获取该URL，当前URL的状态已初始化为先前URL的值。 我发现可能存在异步问题，因此也使用了异步和等待。 这是我的代码： 我已经将所有方法绑定到构造函数中。

          //for image
          handleChange1 = e => {
            if (e.target.files[0]) {
              const image = e.target.files[0];
              this.setState(() => ({ image }));
            }
          };
    // for textfields
          handleChange = (e)=>{
            this.setState({
              [e.target.id] :e.target.value
            })
            console.log(e.target.id)
          }    
    //handle onSubmit()
          handleSubmit= async (e)=>{
          e.preventDefault();
          //checks whether image is there
      if(this.state.image){
          const { image } = this.state;
          // adding image to the images folder of storage
          const uploadTask = await firebase.storage().ref(`images/${image.name}`)
          .put(image).on(
            "state_changed",
            snapshot => {
            },
            error => {
              // Error function ...
              console.log("Error from firebase storage",error);
            },
            () => {
              // complete function ...
    
              firebase.storage()
              .ref("images")
              .child(image.name)
              .getDownloadURL() // <- this is not working
              .then(url => {
                this.setState(() => ({ url }));
              }).catch(
                err =>{
                  console.log("something went wrong while getting URL" , err)
                }
              );
     }
          )
        }
    
        // adding all the data to the firestore
        const db= await firebase.firestore()
          db.collection("newsData").add({
          heading : this.state.heading,
          link:this.state.link,
          date:this.state.date,
          description:this.state.description, 
          url:this.state.url ? this.state.url : null,
        //  image:this.state.image ?this.state.image :null
        }).finally(( res)=>{
              console.log("Succefully added news" ,res)
              })
              .catch((err) => {
                console.log("error occured" ,err)
              });
        }

snippet of storage