<s>
JSON-RPC	B-General_Concept
is	O
a	O
remote	B-Operating_System
procedure	I-Operating_System
call	I-Operating_System
protocol	O
encoded	O
in	O
JSON	B-General_Concept
.	O
</s>
<s>
It	O
is	O
similar	O
to	O
the	O
XML-RPC	B-Protocol
protocol	O
,	O
defining	O
only	O
a	O
few	O
data	O
types	O
and	O
commands	O
.	O
</s>
<s>
JSON-RPC	B-General_Concept
allows	O
for	O
notifications	O
(	O
data	O
sent	O
to	O
the	O
server	O
that	O
does	O
not	O
require	O
a	O
response	O
)	O
and	O
for	O
multiple	O
calls	O
to	O
be	O
sent	O
to	O
the	O
server	O
which	O
may	O
be	O
answered	O
asynchronously	O
.	O
</s>
<s>
2006-08-07	O
1.1	O
Alt	O
Suggestion	O
for	O
a	O
simple	O
JSON-RPC	B-General_Concept
1.1	O
.	O
</s>
<s>
JSON-RPC	B-General_Concept
works	O
by	O
sending	O
a	O
request	O
to	O
a	O
server	O
implementing	O
this	O
protocol	O
.	O
</s>
<s>
All	O
transfer	O
types	O
are	O
single	O
objects	O
,	O
serialized	O
using	O
JSON	B-General_Concept
.	O
</s>
<s>
There	O
are	O
pre-defined	O
error	O
codes	O
which	O
follow	O
those	O
defined	O
for	O
XML-RPC	B-Protocol
.	O
</s>
<s>
Although	O
<--	O
is	O
often	O
called	O
a	O
response	O
in	O
client	O
–	O
server	O
computing	O
,	O
depending	O
on	O
the	O
JSON-RPC	B-General_Concept
version	O
it	O
does	O
not	O
necessarily	O
imply	O
an	O
answer	O
to	O
a	O
request	O
.	O
</s>
