How to Use cURL HTTP/2 on macOS

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cURL is one of most powerful tools for testing HTTP traffic. We typically use cURL to interact with HTTP APIs or test websites.

Although cURL supports HTTP/2, the version that’s installed on macOS Sierra does not. Read Update.

If you try to use the --http2 flag, you’ll receive the following error:

Fortunately, we can use another installation from Homebrew alongside the default version. To do so, just type the following command in the Terminal window (assuming you already have Homebrew installed):

That’s it.

Keep in mind that this installation does not replace the default curl in the system and this can be a good or bad thing for you.

If you want to keep things separately, you’re done as you can always call the 2nd curl by typing its full path:

If you check the version of the two in this example:

If you want to set the curl you installed from Homebrew as the default, keep reading.

Set Homebrew cURL as the Default

There are several ways to set the new version as your default curl, but I believe the best and safest way to do it was already suggested at the end of installation process.

Notice that after installing the curl from Homebrew you’ll see a warning and instruction. If you missed it, it will look similar to this:

Just following the instruction provided, type in the following:

You need to restart terminal and this time if you call curl without the full path, it will run the Homebrew version.

If you need to refer back to the default macOS version, just edit your ~/.bash_profile file by typing the following command:

Look for this line:

and comment it out like so:

And press CTRL-X and Yes to exit and save it.

Now you can test it using —http2 flag:

Update

Update on 5/21/2019: There are two updates that render this post obsolete.

First update is that the version of curl installed on macOS now supports HTTP/2.

The second update is that Homebrew has removed the –with-nghttp2 option from curl which makes the instructions not accurate.

You can still follow the instructions above for Homebrew version of curl only if you substitute it with the curl-openssl and its corresponding path instead.

So you can uninstall Homebrew curl by running the following:

Then install curl-openssl by running the following:

That’s it. You don’t even need to specify any flag such as --with-nghttp2 on the curl-openssl install. It will just work. You just need to pay attention to the path where the curl is installed. It is

The latest comparison between the two versions of curl:

Further Reading

brew install curl –with-nghttp2 errors saying “invalid option: –with-nghttp2”

How to Use cURL HTTP/2 on macOS

标签：version   scrolling   versions   --   uninstall   openssl   btv   arw   ilb   

原文地址：https://www.cnblogs.com/exmyth/p/14856988.html