Format:
{
"lastUpdate" : "20/9/2012-12:12",
"data":[{
"user" : "_name_",
"username" : "_fullname_",
"photoURL" : "_url_"
}, {
"user" : "_name_",
"username" : "_fullname_",
"photoURL" : "_url_"
}, {
"user" : "_name_",
"username" : "_fullname_",
"photoURL" : "_url_"
}]
}
Aptana gives errors at the :
Screenshot Aptana JSON format
Why is that? It seems I'm not having any problems receiving and processing the data.
[EDIT 1] Error given: Syntax Error: unexpected token ":"
In Aptana json is parsed "as json" only when you create/open a file with extension .json.
When have a json object inside a .js file works only the javascript parser, for that you see the error, is not a valid token for JS.
Related
I as trying to parse a json response. However, there is a trailing comma at the end of the reponse which throws an error while decoding it. How do i automatically format if from code such that it removes the comma and validates it?
[{"id" : "9991","last_message" : "How about tomorrow then?","members" : ["John", "Daniel", "Rachel"],"topic" : "pizza night", "modified_at" : 1599814026153}, {"id" : "9992","last_message" : "I will send them to you asap","members" : ["Raphael"],"topic" : "slides", "modified_at" : 1599000026153}, {"id" : "9993","last_message" : "Can you please?","members" : ["Mum", "Dad", "Bro"],"topic" : "pictures", "modified_at" : 1512814026153},]
Error
D/EGL_emulation( 7121): app_time_stats: avg=32.94ms min=4.95ms max=83.26ms count=30
E/flutter ( 7121): [ERROR:flutter/shell/common/shell.cc(93)] Dart Unhandled Exception: FormatException: Unexpected character (at character 435)
E/flutter ( 7121): ..."Mum", "Dad", "Bro"],"topic" : "pictures", "modified_at" : 1512814026153},]
So, you should give some code from source, but I think you're using a http.Response object so you can do something like this:
String bodyRes = response.body;
bodyRes = bodyRes.endsWith(',]') ? bodyRes.replaceFirst(',]', ']', bodyRes.length - 2) : bodyRes;
I have been looking for over 4 days now but I havent been able to find much support on code for lua based json schema compiler. Mainly I have been dealing with
ljsonschema (https://github.com/jdesgats/ljsonschema)
rjson (https://luarocks.org/modules/romaboy/rjson)
But either of the above have not been straight forward to use.
After dealing with issues on the luarocks, I finally got ljsonschema working but the JSON syntax looks different than normal JSON structure - For ex: equals in place of semi colon, no double quotes for key names etc.
ljsonschema supports
{ type = 'object', properties = {
foo = { type = 'string' },
bar = { type = 'number' },},}
I require :
{ "type" : "object",
"properties" : {
"foo" : { "type" : "string" },
"bar" : { "type" : "number" }}}
With rjson there is an issue with the installation location itself. Though the installation goes fine, it is never able to find the .so file while running the lua code. Plus there is not much development support that I could find.
Please help point in the right direction, in case I am missing something.
I have the json schema & a sample json, I just need a lua code to help write a program around it.
This is to write a custom JSON Validation Plugin for Kong CE.
UPDATED:
I would like the below code to work with ljsonschema:
local jsonschema = require 'jsonschema'
-- Note: do cache the result of schema compilation as this is a quite
-- expensive process
local myvalidator = jsonschema.generate_validator{
"type" : "object",
"properties" : {
"foo" : { "type" : "string" },
"bar" : { "type" : "number" }
}
}
print(myvalidator { "foo":"hello", "bar":42 })
But I get the error : '}' expected (to close '{' at line 5) near ':'
it looks like the argument to generate_validator and myvalidator are lua tables, not raw json strings. You'll want to parse the json first:
> jsonschema = require 'jsonschema'
> dkjson = require('dkjson')
> schema = [[
>> { "type" : "object",
>> "properties" : {
>> "foo" : { "type" : "string" },
>> "bar" : { "type" : "number" }}}
>> ]]
> s = dkjson.decode(schema)
> myvalidator = jsonschema.generate_validator(s)
>
> json = '{ "foo": "bar", "bar": 42 }'
> print(myvalidator(json))
false wrong type: expected object, got string
> print(myvalidator(dkjson.decode(json)))
true
Ok, I think rapidjason came to be helpful:
Refer the link
Here is a sample working code :
local rapidjson = require('rapidjson')
function readAll(file)
local f = assert(io.open(file, "rb"))
local content = f:read("*all")
f:close()
return content
end
local jsonContent = readAll("sampleJson.txt")
local sampleSchema = readAll("sampleSchema.txt")
local sd = rapidjson.SchemaDocument(sampleSchema)
local validator = rapidjson.SchemaValidator(sd)
local d = rapidjson.Document(jsonContent)
local ok, message = validator:validate(d)
if ok then
print("json OK")
else
print(message)
end
I am trying to read data off an api webpage using urllib2 in Python2.7. I am using the following lines to read the page:
url = 'https://api.edamam.com/api/nutrition-data?app_id=<my_app_id>&app_key=<my_app_key>&ingr=1cheeseburger'
json_obj = urllib2.urlopen(url)
data = json.load(json_obj)
These lines give me this error (the error is on the last line in the above code):
UnicodeDecodeError: 'utf8' codec can't decode byte 0xb5 in position 0: invalid start byte
I understand that this error means that there are non-unicode characters in json_obj but I am not sure why this is the case, because the same url opens in a browser and the first few lines on the webpage looks like the following:
{
"uri" : "http://www.edamam.com/ontologies/edamam.owl#recipe_2a58ff3e1fec41d79da72f0be446baaa
"calories" : 312,
"totalWeight" : 119.0,
"dietLabels" : [ "BALANCED" ],
"healthLabels" : [ "PEANUT_FREE", "TREE_NUT_FREE", "ALCOHOL_FREE" ],
"cautions" : [ ],
"totalNutrients" : {
"ENERC_KCAL" : {
"label" : "Energy",
"quantity" : 312.96999999999997,
"unit" : "kcal"
},
As you can see, there are no non-unicode characters on this webpage, so I don't really follow what is going on.
I'm calling a web service in VB6 which returns a json string as response. I'm able to hold the response in a string. now I want to show the each parameter separately how can I extract the values from the string ?. a sample string is here :
{
"id": "22144",
"t" : "AAPL",
"e" : "NASDAQ",
"l" : "108.00",
"l_fix" : "108.00",
"l_cur" : "108.00",
"s": "2",
"ltt":"4:00PM EDT",
"lt" : "Aug 10, 4:00PM EDT",
"lt_dts" : "2016-08-10T16:00:01Z",
"c" : "-0.81",
"c_fix" : "-0.81",
"cp" : "-0.74",
"cp_fix" : "-0.74",
"ccol" : "chr",
"pcls_fix" : "108.81",
"el": "107.98",
"el_fix": "107.98",
"el_cur": "107.98",
"elt" : "Aug 10, 5:16PM EDT",
"ec" : "-0.02",
"ec_fix" : "-0.02",
"ecp" : "-0.02",
"ecp_fix" : "-0.02",
"eccol" : "chr",
"div" : "0.57",
"yld" : "2.11"
}
I've found VB-JSON works really well for parsing json in VB6.
You can download it from here.
VB-JSON: A Visual Basic 6 (VB6) JSON Parser Class Library
The .zip file that you download will contain a sample project and the library, which is called JSON.bas.
The main parser function is JSON.parse and you pass it the json string as parameter.
So in your project, you only need to include / add the JSON.bas file.
Sample Usage (from the sample project) :
Private Sub cmdObjToJSON_Click()
Dim p As Object
Dim sInputJson As String
sInputJson = "{ width: '200', frame: false, height: 130, bodyStyle:'background-color: #ffffcc;',buttonAlign:'right', items: [{ xtype: 'form', url: '/content.asp'},{ xtype: 'form2', url: '/content2.asp'}] }"
MsgBox "Input JSON string: " & sInputJson
' sets p
Set p = JSON.parse(sInputJson)
MsgBox "Parsed object output: " & JSON.toString(p)
MsgBox "Get Bodystyle data: " & p.Item("bodyStyle")
MsgBox "Get Form Url data: " & p.Item("items").Item(1).Item("url")
p.Item("items").Item(1).Add "ExtraItem", "Extra Data Value"
MsgBox "Parsed object output with added item: " & JSON.toString(p)
End Sub
As it applies to your case. Something like the following might work (with some tweaks if needed).
Dim parsedJsonObject As Object
Set parsedJsonObject = JSON.parse(yourJsonStringVariable)
'Print the ticker ( t in your json )
Debug.Print parsedJsonObject.Item("t")
There is a JSON parser library for Visual Basic that you can find in http://json.org/.
You can either use VB-JSON or PW.JSON.
I have json file in follwoing format:
{ "_id" : "foo.com", "categories" : [], "h1" : { "bar==" : { "first" : 1281916800, "last" : 1316995200 }, "foo==" : { "first" : 1281916800, "last" : 1316995200 } }, "name2" : [ "foobarl.com", "foobar2.com" ], "rep" : null }
So, how do i parse this json in pig..
also, the categories and rep can have some char in it..and might not be always empty.
I made the following attempt.
a = load 'sample_json.json' using JsonLoader('id:chararray,categories:[chararray], hostt:{ (variable_a: {(first:int,last:int)})}, ns:[chararray],rep:chararray ');
But i get this error:
org.codehaus.jackson.JsonParseException: Unexpected character ('D' (code 68)): expected a valid value (number, String, array, object, 'true', 'false' or 'null')
at [Source: java.io.ByteArrayInputStream#4795b8e9; line: 1, column: 50]
at org.codehaus.jackson.JsonParser._constructError(JsonParser.java:1291)
at org.codehaus.jackson.impl.JsonParserMinimalBase._reportError(JsonParserMinimalBase.java:385)
at org.codehaus.jackson.impl.JsonParserMinimalBase._reportUnexpectedChar(JsonParserMinimalBase.java:306)
at org.codehaus.jackson.impl.Utf8StreamParser._handleUnexpectedValue(Utf8StreamParser.java:1582)
at org.codehaus.jackson.impl.Utf8StreamParser.nextToken(Utf8StreamParser.java:386)
at org.apache.pig.builtin.JsonLoader.readField(JsonLoader.java:173)
at org.apache.pig.builtin.JsonLoader.getNext(JsonLoader.java:157)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigRecordReader.nextKeyValue(PigRecordReader.java:211)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:532)
at org.apache.hadoop.mapreduce.MapContext.nextKeyValue(MapContext.java:67)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:143)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:212)
You can use elephant bird pig jar for parsing json. It can parse all sort of json data.
Here are certain examples for parsing json via elephant bird pig using this jar.
https://github.com/twitter/elephant-bird/tree/master/examples/src/main/pig
It doesn't break even if an expected json tag isn't present.