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I have a api which has a file link. Here I need to create a button So when the user is clicked on then the file will directly download on his system.All I want in reactjs.

I have gone through this post. But the problem is How can we create and apply on button component?

I tried with these code

I don't know much about React and I have to test an application made in React.

My problem comes when I try to run the server with gulp nodemon, and I get a lot of errors. Apparently the application is built on an old version of React and doesn't recognize some libraries or modules; I have already solved several of them regarding prototypes or the way a ReactClass is created, but I found one regarding Bootstrap that I haven't been able to solve.

This is the error I get:

I am working on a Django/React project. Using DRF, I am throwing an API route for performing SQL queries in my PostgreSQL database. But I am having issues with my current code setup.

I have setup my INSERT query in the API as raw queries (using cursor) enclosed in a triple quote multi-line string """INSERT...""", then format my values using string formatting %s. In my API, I capture each data from the request body into a variable. Everything works fine if all request data are filled. But, if it is null, Django obviously assigns None to the variable.

Now back to my sql query, Django will treat the null %s as None and as a table column instead of a correct null value, thus throwing a ProgrammingError column "none" does not exist.

Here are sample codes:

React Frontend