I need to use the FileSaver.js (https://github.com/eligrey/FileSaver.js/) in my Angular2 application.
Angular File Saver An AngularJS service that provides cross-browser compatibility of the HTML5 saveAs() View on GitHub Download.zip Download.tar.gz Angular File Saver. Angular File Saver is an AngularJS service that leverages FileSaver.js and Blob.js to implement the HTML5 W3C saveAs() interface in browsers that do not natively support it Dependencies. (If you don't execute the commands in this guide, you can still download the final application code.). Step 2: Create a workspace and initial applicationlink. Tip: Most Angular guides include links to download example files and run live.
I know I can add it as a script file in main html page and it will work. But I was wondering what would be the best approach in case of an Angular 2 (TypeScript) application so that I can just call window.saveAs to save file.
4 Answers
I managed to get it work using this approach (Angular-CLI):
After that import Filesaver in component:
And you can use it like this:
As you can see, you don't have to add anything in angular-cli.json. Just install library and it's types, import it and you are ready to go.
If you're using Angular-CLI to build your project, you can install it by running
Since there aren't any typings for FileSaver, I had to do:
in my typings.d.ts
file.
Then, to use it:
For reference, these steps are taken from Angular-Cli's steps for installing third-party libraries
Edit 9/27/2017: It appears there is now a type definition for FileSaver.js according to the README instructions, so instead of the
you just need to
Just doing npm install file-saver --save
is a good start. You also need a typescript declaration file (like file-saver.d.ts
or typings.d.ts
) for this library is in plain javascript. Normally you would get it by doing npm install @types/file-saver
but this package is currently outdated.
I have created a file-saver.d.ts for myself – just place it in your source directory.
file-saver.d.ts
Then you can use saveAs as follows:
your.ts
Of course, don't forget to update your loader's configuration.
For SystemJS you need something like this:
Even not a great way like other people mentioned, I prefer to use existing package from NPM which called ngx-filesaver. It is even works fine with Angular Universal.
Just do:
npm install file-saver ngx-filesaver --save
Include to your Module project:
Then load the service to your component:
More detail please visit: https://www.npmjs.com/package/ngx-filesaver
Not the answer you're looking for? Browse other questions tagged angularangular2-directivesangular2-servicesfilesaver.js or ask your own question.
There are various ways to get started with your first Angular JS application.
One way is to do everything from scratch which is the most difficult and not the preferred way. Due to the many dependencies, it becomes difficult to get this setup.
Another way is to use the quick start at Angular Github. This contains the necessary code to get started. This is normally what is opted by all developers and this is what we will show for the Hello World application.
The final way is to use Angular CLI. We will discuss this in detail in a separate chapter.
Following are the steps to get a sample application up and running via github.
Step 1 − Go the github url - https://github.com/angular/quickstart
Step 2 − Go to your command prompt, create a project directory. This can be an empty directory. In our example, we have created a directory called Project.
Step 3 − Next, in the command prompt, go to this directory and issue the following command to clone the github repository on your local system. You can do this by issuing the following command −
This will create a sample Angular JS application on your local machine.
Step 4 − Open the code in Visual Studio code.
Step 5 − Go to the command prompt and in your project folder again and issue the following command −
This will install all the necessary packages which are required for the Angular JS application to work.
Download game assassins creed brotherhood. Once done, you should see a tree structure with all dependencies installed.
Step 6 − Go to the folder Demo → src → app → app.component.ts. Find the following lines of code −
And replace the Angular keyword with World as shown below −
There are other files that get created as part of the project creation for Angular 2 application. At the moment, you don’t need to bother about the other code files because these are all included as part of your Angular 2 application and don’t need to be changed for the Hello World application.
We will be discussing these files in the subsequent chapters in detail.
Note − Visual Studio Code will automatically compile all your files and create JavaScript files for all your typescript files.
Step 7 − Now go to your command prompt and issue the command npm start. This will cause the Node package manager to start a lite web server and launch your Angular application.
The Angular JS application will now launch in the browser and you will see “Hello World” in the browser as shown in the following screenshot.
Deployment
This topic focuses on the deployment of the above Hello world application. Since this is an Angular JS application, it can be deployed onto any platform. Your development can be on any platform.
In this case, it will be on Windows using Visual Studio code. Now let’s look at two deployment options.
Deployment on NGNIX Servers on Windows
Note that you can use any web server on any platform to host Angular JS applications. In this case, we will take the example of NGNIX which is a popular web server.
Step 1 − Download the NGNIX web server from the following url http://nginx.org/en/download.html
Step 2 − After extracting the downloaded zip file, run the nginx exe component which will make the web server run in the background. You will then be able to go to the home page in the url – http://localhost
Step 3 − Go to Angular JS project folder in Windows explorer.
Step 4 − Copy the Project → Demo → node-modules folder.
Step 5 − Copy all the contents from the Project → Demo → src folder.
Step 6 − Copy all contents to the nginx/html folder.
Now go to the URL − http://localhost, you will actually see the hello world application as shown in the following screenshot.
Setting Up on Ubuntu
Now let’s see how to host the same hello world application onto an Ubuntu server.
Step 1 − Issue the following commands on your Ubuntu server to install nginx.
The above command will ensure all the packages on the system are up to date.
Once done, the system should be up to date.
Step 2 − Now, install GIT on the Ubuntu server by issuing the following command.
Once done, GIT will be installed on the system.
Step 3 − To check the git version, issue the following command.
Step 4 − Install npm which is the node package manager on Ubuntu. To do this, issue the following command.
Once done, npm will be installed on the system.
Step 5 − To check the npm version, issue the following command.
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Step 6 − Next, install nodejs. This can be done via the following command.
Step 7 − To see the version of Node.js, just issue the following command.
Step 8 − Create a project folder and download the github starter project using the following git command.
This will download all the files on the local system.
You can navigate through the folder to see the files have been successfully downloaded from github.
Step 9 − Next issue the following command for npm.
This will install all the necessary packages which are required for Angular JS application to work.
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Once done, you will see all the dependencies installed on the system.
Step 10 − Go to the folder Demo → src → app → app.component.ts. Use the vim editor if required. Find the following lines of code −
And replace the Angular keyword with World as shown in the following code.
There are other files that get created as part of the project creation for Angular 2 application. At the moment, you don’t need to bother about the other code files because they are included as part of your Angular 2 application and don’t need to be changed for the Hello World application.
We will be discussing these files in the subsequent chapters in detail.
Step 11 − Next, install the lite server which can be used to run the Angular 2 application. You can do this by issuing the following command −
Once done, you will see the completion status. You don’t need to worry about the warnings.
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Step 12 − Create a symbolic link to the node folder via the following command. This helps in ensuring the node package manager can locate the nodejs installation.
Step 13 − Now it’s time to start Angular 2 Application via the npm start command. This will first build the files and then launch the Angular app in the lite server which was installed in the earlier step.
Issue the following command −
Once done, you will be presented with the URL.
If you go to the URL, you will now see the Angular 2 app loading the browser.
Deploying nginx on Ubuntu
Note − You can use any web server on any platform to host Angular JS applications. In this case, we will take the example of NGNIX which is a popular web server.
Step 1 − Issue the following command on your Ubuntu server to install nginx as a web server.
This command will ensure all the packages on the system are up to date.
Once done, the system should be up to date.
Step 2 − Now issue the following command to install nginx.
Once done, nginx will be running in the background.
Step 3 − Run the following command to confirm that the nginx services are running.
Now by default, the files for nginx are stored in /var/www/html folder. Hence, give the required permissions to copy your Hello World files to this location.
Step 4 − Issue the following command.
Step 5 − Copy the files using any method to copy the project files to the /var/www/html folder.
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Now, if you browse to the URL − http://192.168.1.200/index.html you will find the Hello world Angular JS application.