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Why do access tokens expire?

...ing started working with Google API and OAuth2. When the client authorizes my app I am given a "refresh token" and a short lived "access token". Now every time the access token expires, I can POST my refresh token to Google and they will give me a new access token. ...
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Why are variables “i” and “j” used for counters?

...ecific.) I'm sorry yours isn't the accepted one. All I can do is give it my upvote. – John Y Jun 2 '09 at 2:12 3 ...
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How to sort the result from string_agg()

... I had the same problem as OP, and this approach was my first thought, but unfortunately it doesn't work (which brought me here), whereas Igor's does. – chbrown Feb 4 '16 at 14:13 ...
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install / uninstall APKs programmatically (PackageManager vs Intents)

My application installs other applications, and it needs to keep track of what applications it has installed. Of course, this could be achieved by simply keeping a list of installed applications. But this should not be necessary! It should be the responsibility of the PackageManager to maintain the ...
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mysqli or PDO - what are the pros and cons? [closed]

In our place we're split between using mysqli and PDO for stuff like prepared statements and transaction support. Some projects use one, some the other. There is little realistic likelihood of us ever moving to another RDBMS. ...
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C: differences between char pointer and array [duplicate]

...ot store an address anywhere (which should be clear from the memory map in my answer). Rather, array expressions will "decay" to pointer types unless they are operands of the unary & or sizeof operators (hence the difference in behavior for sizeof). – John Bode ...
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When is it appropriate to use C# partial classes?

... more than 36K lines (or probably much more, I don't remeber exactly), and my editors were blocked when the source was opened. Partial classes allowed me to see the produced code without havin 4 GB of RAM. – Luca Aug 30 '10 at 15:56 ...
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How to limit the amount of concurrent async I/O operations?

...t how to use SemaphoreSlim for async method throttling: public async Task MyOuterMethod() { // let's say there is a list of 1000+ URLs var urls = { "http://google.com", "http://yahoo.com", ... }; // now let's send HTTP requests to each of these URLs in parallel var allTasks = new L...
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Create a tag in a GitHub repository

...ou just want to push a single tag: git push origin <tag> See also my answer to How do you push a tag to a remote repository using Git? for more details about that syntax above. Creating tags through GitHub's web interface You can find GitHub's instructions for this at their Creating Relea...
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Is std::vector copying the objects with a push_back?

...hen the argument is actually an lvalue and will not be moved from) - check my edit to the answer of "Karl Nicoll" which made that mistake initially – M.M Apr 16 '17 at 0:17 ...