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How do popular apps authenticate user requests from their mobile app to their server?
Say I have an Android application that connects to a .Net API for receiving/setting data. The confusion that I have is regarding how to sign-up/login the user first time and authenticate it every time they make a request to the API.
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What is a NullPointerException, and how do I fix it?
What are Null Pointer Exceptions ( java.lang.NullPointerException ) and what causes them?
12 Answers
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SELECT INTO a table variable in T-SQL
Got a complex SELECT query, from which I would like to insert all rows into a table variable, but T-SQL doesn't allow it.
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Difference between abstract class and interface in Python
What is the difference between abstract class and interface in Python?
8 Answers
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Monad in plain English? (For the OOP programmer with no FP background)
In terms that an OOP programmer would understand (without any functional programming background), what is a monad?
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Running PostgreSQL in memory only
I want to run a small PostgreSQL database which runs in memory only, for each unit test I write. For instance:
8 Answers
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Mailto links do nothing in Chrome but work in Firefox?
It seems like the mailto links we're embedding in our website fail to do anything in Chrome, though they work in Firefox.
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Why does Ruby have both private and protected methods?
Before I read this article , I thought access control in Ruby worked like this:
7 Answers
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Is it better in C++ to pass by value or pass by constant reference?
Is it better in C++ to pass by value or pass by constant reference?
10 Answers
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Can hash tables really be O(1)?
...chieve O(1), but that has never made sense to me. Can someone please explain it? Here are two situations that come to mind:
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