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Updated FAQ (markdown)

Benoît Blanchon
2016-01-13 10:31:10 +01:00
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FAQ.md

@@ -2,6 +2,26 @@
See [Compatibility issues](Compatibility issues) first.
### Can I parse data from a stream?
No.
This is a fundamental design principle in this library.
The JSON input must be in memory and must be mutable (ie not readonly) to allow zero-copy and zero-allocation, which is *the* strength of this library.
To parse data from a stream, you'll have to read its content and put it in a `char[]`:
```c++
#define MAX_JSON_SIZE 256
char json[MAX_SIZE];
stream.readBytesUntil('\n', json, MAX_JSON_SIZE);
```
If this is not acceptable, you should have a look at other libraries, like [aJson](https://github.com/interactive-matter/aJson).
See issues [#60](https://github.com/bblanchon/ArduinoJson/issues/60), [#119](https://github.com/bblanchon/ArduinoJson/issues/119), [#194](https://github.com/bblanchon/ArduinoJson/issues/194), [#200](https://github.com/bblanchon/ArduinoJson/issues/200).
### Should I call `parseArray()` or `parseObject()`?
This is a very common question as people are often confused when the JSON input contains mixed arrays and objects.