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Obviously it is also easy to put in some spinner code etc… One remark here…. Step-1:To install angular-in-memory-web-api, run below command from root folder of the project. The endpoint is support POST HTTP request.
You no longer have to parse the response manually. Note: In a previous chapter, we have not glad removeProduct method into an asynchronous method, so in ProductsComponent, we are still using synchronous calling of removeProduct method. In request option we can set request headers such as content type and to handle this angular provides Headers and RequestOptions API. } We have swapped httpClient. HttpClient Options HTTP jesus a huge range of different options, parameters, headers and formats. If you have questions or comments, please leave them below. The request we are interested in is the get request which calls the url:. Go ahead and create a new Angular-CLI project using ng new project-name.
It gets an error object as the parameter. } We have swapped httpClient. Obviously it is also easy to put in some spinner code etc… One remark here….
Related Editorial - So why don't we write the logic once and reuse it everywhere?
Again, the image is always the same since I hacked this portion. The code is written in TypeScript and compiled to JavaScript, and then executed with Node. For now, I have a single image. Note that this is where I hacked this to always return the same file. Likely, your application would retreive an image or file blob based on the request data. I have a single heros module that is lazy loaded. Further, also note that the return type of the method is Observable. Over in our component we will use the ViewChild decorator to get access to the native element. In my NgRx effects the getImage method is invoked on the HerosService. Using the URL web API we can generate a URL for the image blob. Also, note that I am using a WindowRefService that is injected into my constructor function. URL Web API Warning: this solution for displaying an image blob using the HttpClient uses the , which is generally supported by all modern browsers.