Making remote network request in remove hook (curl?)

snapcraft
1

I’m attempting to contact a remote server using curl in the remove hook bash script in my app. For testing purposes, I put it into the install hook bash script first, and once I get it working there I will put it into remove, where it will hopefully work perfectly.

Attempting to install the snap fails and I get this message:

meta/hooks/install: curl: not found

In my attempts to fix this, I added curl to my requirements.txt file in snapcraft.yaml, but I believe that is not actually for the hooks, but only for the actual application, so I didn’t expect it to work.

parts:
    my-app-name:
        requirements:
            - /root/project/requirements.txt

Whether it should have or not, it accomplished nothing. Is there a different place in the snapcraft.yaml I should have added it?

I also tried to install curl in the install hook itself:

if hash apt-get 2>/dev/null; then
    apt-get install curl
    echo 'Install of libraries via apt-get successful'
elif hash apt 2>/dev/null; then
    apt install curl
    echo 'Install of libraries via apt successful'
elif hash dnf 2>/dev/null; then
    dnf install curl
    echo 'Install of libraries via dnf successful'
elif hash yum 2>/dev/null; then
    yum install curl
    echo 'Install of libraries via yum successful'
elif hash zypper 2>/dev/null; then
    zypper install curl
    echo 'Install of libraries via zypper successful'
elif hash pacman 2>/dev/null; then
    pacman -Sy curl
    echo 'Install of libraries via pacman successful'
else
    echo 'Install of libraries failed'
fi

The snap app install process still fails, giving me my own message:

Install of libraries failed

What would be the best way to make a network SOAP request in my remove bash script? Or, if I’m on the right track, how can I install curl so that it is available for my remove script?

Many thanks!

2

This was resolved in a different thread here: