Approov is an API security solution used to verify that requests received by your backend services originate from trusted versions of your mobile apps.
The quickstart code for the Approov backend server is split into two implementations. The first gets you up and running with basic token checking. The second uses a more advanced Approov feature, token binding. Token binding may be used to link the Approov token with other properties of the request, such as user authentication (more details can be found here).
Both the quickstarts are built from the unprotected example server defined here, thus you can use Git to see the code differences between them.
Code difference between the Approov token check quickstart and the original unprotected server:
git diff --no-index servers/hello/src/unprotected-server/hello-server-unprotected.js servers/hello/src/approov-protected-server/token-check/hello-server-protected.js
You can do the same for the Approov token binding quickstart:
git diff --no-index servers/hello/src/unprotected-server/hello-server-unprotected.js servers/hello/src/approov-protected-server/token-binding-check/hello-server-protected.js
Or you can compare the code difference between the two quickstarts:
git diff --no-index servers/hello/src/approov-protected-server/token-check/hello-server-protected.js servers/hello/src/approov-protected-server/token-binding-check/hello-server-protected.js
If you find any issue while following our instructions then just report it here, with the steps to reproduce it, and we will sort it out and/or guide you to the correct path.
If you wish to explore the Approov solution in more depth, then why not try one of the following links as a jumping off point: