Downloaded api files angular

We use both component from the FileManager component and there you have it. HTML will be as follow:. The component logic will limit itself to recover the list of available files and to show the upload and download status, based on events received from sons components:. See author's posts. Stay updated. How to upload and download files with an Angular front-end and an Asp.

Net Core back-end. Uploading and Downloading files with Angular and Asp. Net Core. Wednesday, January 23, Net Core, particularly a controller with three actions: Upload , to receive a file a save it in the folder. A possible implementation of the controller may be the following: namespace BackEnd. WebRootPath, "uploads" ; if! Combine uploads, file.

Combine uploads, file ; if! WebRootPath, "uploads" ; if Directory. GetFileInfo fileName ; result. Add fileInfo. The above line create a Blob object with file content in response and expecting the file of JSON type. The above two lines create a URL that will open the file in browser in new window.

The above line shows the file content on browser, so it does not give you save as option. The above line uses ready-made FileSaver module that will open the file with Save as option. I have created service class to fetch file data from a server URL but I need to provide a link or button for downloading the file. In the view file I will give users two options for downloading the same file. I will use link as well as button for downloading the same file from the server.

In the service class I have used Http module which may not be found automatically. So I need to register it in providers array of NgModule.

Run the Angular application angular-file-download by executing command ng serve --open. When you click on link or button for downloading file you will see below page with file save option:. When you use the code for displaying data on browser inside download function of controller code and click on button or link, then you should see below output:. To accomplish that, we have to add logic to the download. With this, we can wrap up the implementation of the download operation.

To choose a file to download, we first need to list those files somewhere in the application and trigger the download request with the help of the UI components. As mentioned in the beginning, we will load a list of users from the database and take their corresponding profile pictures.

But to have something to show, we first need to create some users. On the homepage of the application, by entering credentials and uploading a picture, we can successfully create a User. When we add a user, the profile picture will also automatically appear in a folder inside our application. For the sake of simplicity, we will show them below the user creation form.

Each photo in the list will have an associated download button which will trigger the download for that particular file. For the realization of the idea of iterating through a list of users, we first need to load the users from the database.

Luckily, we already have a method in the app. Here, we also added the selector for the DownloadComponent so its template renders next to each profile picture.

By clicking the download button, we will get a message that we have hit the download end-point:. With this implementation, we are manipulating the user data that we read from the database, selecting image properties, and showing them. But what if we want to read the files directly from a folder? To be able to read from a folder, we need its path. When we access the desired folder, we pick up the files with specific extensions since we only want pictures.

That way we will get paths for each file and render them on the UI as we do now by reading from the database. Firstly, we are going to add a new end-point to our FileController.

We will fill it with the necessary logic for reading. Note: If the only photos in the folder are the ones associated with users, try to add more files so that there is a clear difference between these two approaches. The updated FileController. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown.

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