如何将图像上传到 firebase 存储然后 return 下载 url?
How to upload an image to firebase storage and then return the download url?
我正在尝试将图像上传到 react-native 项目中的 firebase 存储,然后 return 下载 URL 上传完成后。
这是我尝试过的:
编辑:
const uploadImg = async (dispatch, uri, uid, mime = 'image/png') => {
console.log('Starting image upload...');
dispatch({ type: types.UPLOAD_IMG, info: 'Uploading profile image...' });
const uploadUri = Platform.OS === 'ios' ? uri.replace('file://', '') : uri;
return (imageRef = firebase
.storage()
.ref(uid)
.child('profileImg')
.putFile(uploadUri, { contentType: 'image/png' })
.catch((err) => {
uploadImgFail(dispatch, err.message);
}));
};
部分实现:
uploadImg(dispatch, img, userCredential.user.uid)
.then((imgRef) => {
const imgUrl = imgRef.getDownloadURL();
console.log('uploaded Image URL: ' + imgUrl)
uploadImgSuccess(dispatch, 'Profile image upload successful...');
// rest of action
}
问题是下载 URL 不是由函数 return 编辑的,我收到未处理的承诺拒绝:"can't find variable: imgUrl"
对 react-native-firebase
实现此目标有何帮助?
您实际上需要 return 来自 uploadImg
的值。现在 return 什么都没有。在 imageRef.putFile()
之前添加一个 return
关键字到 return 其链式承诺 returns.
的承诺
我正在尝试将图像上传到 react-native 项目中的 firebase 存储,然后 return 下载 URL 上传完成后。
这是我尝试过的: 编辑:
const uploadImg = async (dispatch, uri, uid, mime = 'image/png') => {
console.log('Starting image upload...');
dispatch({ type: types.UPLOAD_IMG, info: 'Uploading profile image...' });
const uploadUri = Platform.OS === 'ios' ? uri.replace('file://', '') : uri;
return (imageRef = firebase
.storage()
.ref(uid)
.child('profileImg')
.putFile(uploadUri, { contentType: 'image/png' })
.catch((err) => {
uploadImgFail(dispatch, err.message);
}));
};
部分实现:
uploadImg(dispatch, img, userCredential.user.uid)
.then((imgRef) => {
const imgUrl = imgRef.getDownloadURL();
console.log('uploaded Image URL: ' + imgUrl)
uploadImgSuccess(dispatch, 'Profile image upload successful...');
// rest of action
}
问题是下载 URL 不是由函数 return 编辑的,我收到未处理的承诺拒绝:"can't find variable: imgUrl"
对 react-native-firebase
实现此目标有何帮助?
您实际上需要 return 来自 uploadImg
的值。现在 return 什么都没有。在 imageRef.putFile()
之前添加一个 return
关键字到 return 其链式承诺 returns.