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What is a callback URL in relation to an API?

I've been scouring the net, and can't seem to wrap my head around the idea of a callback URL. In my case I have a few callback URLs that I have to define myself. A popular one is a "default callback URL". What is this exactly? Can you give an example in plain english? ...
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rmagick gem install “Can't find Magick-config”

... You saved my bacon with this one. Thanks a million! – crice1988 Aug 12 at 21:50 add a comment ...
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How to create an alias for a command in Vim?

Vim is my preferred text editor when I program, and thus I always run into a particularly annoying issue. 7 Answers ...
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How to turn on front flash light programmatically in Android?

...to develop a widget that turns on/off your camera led, then you must refer my answer Widget for turning on/off camera flashlight in android.. Update 4 If you want to set the intensity of light emerging from camera LED you can refer Can I change the LED intensity of an Android device? full post. N...
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SQL UPDATE SET one column to be equal to a value in a related table referenced by a different column

... Having a problem with a similar situation in PhpMyAdmin over MySQL. In my case, the source and destination columns are in the same table, but record selection is based on the other table. The "SELECT" version of the query works, but the UPDTATE statement throws a syntax ...
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Is it possible to add dynamically named properties to JavaScript object?

... This is what I needed in the case where I wanted my code to be completely functional (as in, no imperative statements saying obj[propname]). Instead, I was able to use this with object spread syntax. – intcreator Feb 13 '18 at 5:41 ...
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How to change string into QString?

... @Rohan - Thank you for your comment. I'm removing this from my answer. – Kamil Szot Nov 29 '09 at 10:13 ...
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Applying .gitignore to committed files

... There does need to be a 'I forgot to add my .gitignore until after my initial commit' mode. – Luke Puplett Jul 3 '13 at 15:58 9 ...
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PostgreSQL - max number of parameters in “IN” clause?

...0 integers by actually listing all the prime numbers as query parameters. My results indicate that you need not worry about overloading the query plan optimizer or getting plans without index usage, since it will transform the query to use = ANY({...}::integer[]) where it can leverage indices as ex...
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What is Domain Driven Design (DDD)? [closed]

...t what it actually is and how I would go about implementing it in creating my sites? 2 Answers ...