Here in HTML, we have created two drop downs to select file and file type as well. Then two buttons to display the file in the same window or in a new window, also we need one object element which will act as a container to show the pdf file on the same page. In typescript we have written two functions for, to display a file on the same page and to display a file in a new window.
In both cases we got an array of bytes from the server, we catch that bytes array and apply its type to it. Senior Application Developer. I write blogs about. Bursts of code to power through your day. Web Development articles, tutorials, and news.
Sign in. Changhui Xu Follow. Written by Changhui Xu Follow. More From Medium. Jing Dong. How to create a resizable application header in Figma. Michael Haase in Enterprise Design Talks. Many have tried to be a self-trained developers. Akintoye Olamide. When the service is provided at root level, Angular creates a single, shared instance of service and injects into any class that needs it. Registering the provider in the Injectable metadata also allows Angular to optimize an application by removing the service if it is not used.
If you are not using stricter type then your code should be working fine as it is working for Angular First replace the line this.
I am also accepting response as Blob Binary Large Object. You may also specify any value from supporting values, such as, json, blob, arraybuffer, text. You can have a look for more details on response type. I have used three ways for downloading file — two ways for Save as functionality and one way to show the file content on browser itself.
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. Line 5: In this line, we are combining the folder directory path with file name. Now, go to component where you want to implement file downloading code.
Open html file and then write this below code in html file. This is just simple button with download click event. Now, in this step, we will create a service. We will add http post request to call web API. And this service will return file stream as a result. So, go to project folder structure and then create a new service and then write this below code in your service.
Line 4: Here in this line, we are calling web API with input parameter.
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