Trying to pull first value from a parsed JSON string using the JsonConverter library.
What I currently have is:
result = objHTTP.responseText
Set parsedResult = JsonConverter.ParseJson(result)
i = 3
For Each Item In parsedResult("From")
wsSheet0.Cells(i, 12) = parsedResult("From")(Item)("Price")
i = i + 1
Next
With parsedResult("From")
wsSheet0.Cells(11, 12) = parsedResult("From")("Chocolate")("Price")("AsAtDate")
End With
The last line of this gets a type mismatch error, so I'm still trying to figure out how to just pull that one line item.
For the sake of clarity, the parsed JSON string looks like:
{
"From":{
"Chocolate":{
"Price":1.0,
"AsAtDate":"2018-05-04T00:00:00"
},
"Lime":{
"Price":1.35415115,
"AsAtDate":"2018-05-04T00:00:00"
},
"Strawberry":{
"Price":1.19517151,
"AsAtDate":"2018-05-04T00:00:00"
},
"Vanilla":{
"Price":0.77522986,
"AsAtDate":"2018-05-04T00:00:00"
},
"Blueberry":{
"Price":1.00084071,
"AsAtDate":"2018-05-04T00:00:00"
},
"Lemon":{
"Price":0.75030012,
"AsAtDate":"2018-05-04T00:00:00"
}
},
"To":"Chocolate",
"RequestedDate":"2018-05-22T08:26:16"
}
Use
parsedResult("From")("Chocolate")("AsAtDate")
Or more generally to get all:
parsedResult("From")(item)("AsAtDate")
Related
Using Newtonsoft Json with VB.NET I am trying to read some nested keys/elements within a block of JSON.
The JSON looks like this and is held in string strSuppliedJSON:
{
"seller": {
"id": 123,
"name": "Seller Name",
"address1": "Seller address1",
"country": "Seller country"
},
"buyer": {
"id": 987,
"name": "Buyer name",
"address1": "Buyer address1",
"country": "Buyer country"
},
"interview": {
"call_id": 123,
"vin": "The vin from the machine section",
"call_date": "2019-12-31 23:59:59",
"questions": ["Question1", "Question2", "Question3", "Question5", "Question5"],
"triggers": [{
"question": "Question1",
"answers": ["Answer1", "Answer2"]
}]
}
}
Before reading the values I need to make sure some of the keys exist using ContainsKey.
The following works fine:
Imports Newtonsoft.Json
Imports Newtonsoft.Json.Linq
' Create a dictionary
Dim dictionary As IDictionary(Of String, JToken) = JObject.Parse(strSuppliedJSON)
' Check if key exists - interview:triggers
If JObject.Parse(dictionary("interview").ToString()).ContainsKey("triggers") = False Then
strAllChecksPassed = False
result = "ERROR: JSON element not found: interview:triggers"
End If
However, when trying to check or read the interview:triggers:question things are falling over.
Using this, fails:
' Check if key exists - interview:triggers
If JObject.Parse(dictionary("interview").ToString()).ContainsKey("triggers") = False Then
strAllChecksPassed = False
result = "ERROR: JSON element not found: interview:triggers"
Else
' interview:triggers DOES exist, now check if the question exists - interview:triggers:question
If JObject.Parse(dictionary("interview")("triggers").ToString()).ContainsKey("question") = False Then
strAllChecksPassed = False
result = "ERROR: JSON element not found: interview:triggers:question"
End If
End If
The line that throws the error is:
If JObject.Parse(dictionary("interview")("triggers").ToString()).ContainsKey("question") = False Then
And the error is:
Newtonsoft.Json.JsonReaderException: Error reading JObject from JsonReader. Current JsonReader item is not an object: StartArray. Path '', line 1, position 1
So I then tried to create a sub-dictionary of just the interview element.
I used this:
' Create a sub-dictionary of just the Interview element
Dim subDictionary As IDictionary(Of String, JToken) = JObject.Parse(dictionary("interview").ToString())
And if I then do Response.Write(subDictionary) I now see a smaller subset of my JSON, as expected:
{
"call_id": 123,
"vin": "The vin from the machine section",
"call_date": "2019-12-31 23:59:59",
"questions": ["Question1", "Question2", "Question3", "Question5", "Question5"],
"triggers": [{
"question": "Question1",
"answers": ["Answer1", "Answer2"]
}]
}
But then when trying to use my new subDictionary in the exact same way to see if the question key exists:
' Check if key exists - interview:triggers:question
If JObject.Parse(subDictionary("triggers").ToString()).ContainsKey("question") = False Then
strAllChecksPassed = False
result = "ERROR: JSON element not found: interview:triggers:question"
End If
I get the exact same error of:
Newtonsoft.Json.JsonReaderException: Error reading JObject from JsonReader. Current JsonReader item is not an object: StartArray. Path '', line 1, position 1
Even though the line of code is identical!
How do I check if the nested key interview:triggers:question exists in my JSON, and what its value is?
Look closely at "triggers" in the JSON: it's actually an array of objects, not an object. You need to index the array before you can access "question".
Also note that every time you call ToString, you're reserializing something that you just deserialized with Parse. You don't need to do that. Parse the JSON once into a JObject and then reuse that object.
My VB-fu isn't great; I wrote this in C# and then converted it but the critical part is Dim first As JToken = triggers(0). This gets the first array element, on which you can get the value associated with "question".
Dim suppliedObject As JObject = JObject.Parse(strSuppliedJSON)
Dim interview As JToken = suppliedObject("interview")
Dim triggers As JToken = If(interview IsNot Nothing, interview("triggers"), Nothing)
If triggers Is Nothing Then
strAllChecksPassed = False
result = "ERROR: JSON element not found: interview:triggers"
Else
Dim first As JToken = triggers(0)
Dim question As JToken = If(first IsNot Nothing, first("question"), Nothing)
If question Is Nothing Then
strAllChecksPassed = False
result = "ERROR: JSON element not found: interview:triggers:question"
End If
End If
It fails because your path is not proper.
[] is an Array. You write out the name for single items (within {}), for arrays you write index (number).
And why are you parsing multiple times? Use what you already have, for example:
Dim JsonResp As JObject = JObject.Parse(<JSON>)
'Now there's multiple ways to do the same, here's one
If JsonResp ("interview")("triggers")(0)("question") Is Nothing Then
strAllChecksPassed = False
result = "ERROR: JSON element not found: interview:triggers:question"
End If
I have the following json string:
[
{
"Features": {
"Level": [
{
"endDate": "2018-12-11",
"minimum": "0.000000000000",
"maximum": "0.000000000000",
"value": "228.108000000000",
"payDate": "0"
},
{
"endDate": "2018-12-11",
"minimum": "0.000000000000",
"maximum": "0.000000000000",
"value": "3143.513000000000",
"payDate": "0"
}
]
}
},
]
I was trying to extract the two values in excel using vba and have the following code (where result2 would be the json string)
Public Sub GetS (result2 As String, m As Integer)
Dim activeWS As Worksheet
Set activeWS = ThisWorkbook.Worksheets("Data")
Dim jsonStr As String, json As Object, headers()
jsonStr = result2
Set json = JsonConverter.ParseJson(jsonStr)(1)
activeWS.Cells(m, 19) = json("Features")("Level")(0)("value")
activeWS.Cells(m, 20) = json("Features")("Level")(1)("value")
End Sub
the second part of the vba works, where it grab the value of 3143.51 (the second number), i'm wondering how can I get the first value (228.10).
I've tried using ("Initial Level")(0)("value") but it doesn't work.
Thank you so much.
JSON arrays get converted to VBA Collections - these are indexed from 1 not from zero
Try this:
jsonStr = Range("I10").Value 'your json sample
Set json = JsonConverter.ParseJson(jsonStr)(1)
Debug.Print json("Features")("Level")(1)("value") '>>228.108000000000
Debug.Print json("Features")("Level")(2)("value") '>>3143.513000000000
(tested and confirmed)
Here is how to access data in the JSON string:
Json("match")("awayTeam")("coach")("countryOfBirth")
Json("match")("awayTeam")("coach")("nationality")
Json("match")("awayTeam")("captain")("id")
Json("match")("awayTeam")("captain")("name")
Json("match")("awayTeam")("captain")("shirtNumber")
Json("match")("awayTeam")("lineup")(1)("id")
Json("match")("awayTeam")("lineup")(1)("name")
Json("match")("awayTeam")("lineup")(1)("position")
Json("match")("awayTeam")("lineup")(1)("shirtNumber")
Json("match")("awayTeam")("lineup")(2)("id")
Json("match")("awayTeam")("lineup")(2)("name")
Json("match")("awayTeam")("lineup")(2)("position")
Json("match")("awayTeam")("lineup")(2)("shirtNumber")
Json("match")("awayTeam")("lineup")(3)("id")
Json("match")("awayTeam")("lineup")(3)("name")
Json("match")("awayTeam")("lineup")(3)("position")
Json("match")("awayTeam")("lineup")(3)("shirtNumber")
Json("match")("awayTeam")("lineup")(4)("id")
Json("match")("awayTeam")("lineup")(4)("name")
Json("match")("awayTeam")("lineup")(4)("position")
Json("match")("awayTeam")("lineup")(4)("shirtNumber")
Json("match")("awayTeam")("lineup")(5)("id")
Json("match")("awayTeam")("lineup")(5)("name")
Json("match")("awayTeam")("lineup")(5)("position")
Json("match")("awayTeam")("lineup")(5)("shirtNumber")
Json("match")("awayTeam")("lineup")(6)("id")
Json("match")("awayTeam")("lineup")(6)("name")
Json("match")("awayTeam")("lineup")(6)("position")
Json("match")("awayTeam")("lineup")(6)("shirtNumber")
Json("match")("awayTeam")("lineup")(7)("id")
Json("match")("awayTeam")("lineup")(7)("name")
Json("match")("awayTeam")("lineup")(7)("position")
Json("match")("awayTeam")("lineup")(7)("shirtNumber")
Json("match")("awayTeam")("lineup")(8)("id")
Json("match")("awayTeam")("lineup")(8)("name")
Json("match")("awayTeam")("lineup")(8)("position")
Json("match")("awayTeam")("lineup")(8)("shirtNumber")
Json("match")("awayTeam")("lineup")(9)("id")
Json("match")("awayTeam")("lineup")(9)("name")
Json("match")("awayTeam")("lineup")(9)("position")
Json("match")("awayTeam")("lineup")(9)("shirtNumber")
Json("match")("awayTeam")("lineup")(10)("id")
Json("match")("awayTeam")("lineup")(10)("name")
Json("match")("awayTeam")("lineup")(10)("position")
Json("match")("awayTeam")("lineup")(10)("shirtNumber")
Json("match")("awayTeam")("lineup")(11)("id")
Json("match")("awayTeam")("lineup")(11)("name")
Json("match")("awayTeam")("lineup")(11)("position")
Json("match")("awayTeam")("lineup")(11)("shirtNumber")
Json("match")("awayTeam")("bench")(1)("id")
Json("match")("awayTeam")("bench")(1)("name")
Json("match")("awayTeam")("bench")(1)("position")
Json("match")("awayTeam")("bench")(1)("shirtNumber")
Json("match")("awayTeam")("bench")(2)("id")
Json("match")("awayTeam")("bench")(2)("name")
Json("match")("awayTeam")("bench")(2)("position")
Json("match")("awayTeam")("bench")(2)("shirtNumber")
Json("match")("awayTeam")("bench")(3)("id")
Json("match")("awayTeam")("bench")(3)("name")
Json("match")("awayTeam")("bench")(3)("position")
Json("match")("awayTeam")("bench")(3)("shirtNumber")
Json("match")("awayTeam")("bench")(4)("id")
Json("match")("awayTeam")("bench")(4)("name")
Json("match")("awayTeam")("bench")(4)("position")
Json("match")("awayTeam")("bench")(4)("shirtNumber")
Json("match")("awayTeam")("bench")(5)("id")
Json("match")("awayTeam")("bench")(5)("name")
Json("match")("awayTeam")("bench")(5)("position")
Json("match")("awayTeam")("bench")(5)("shirtNumber")
Json("match")("awayTeam")("bench")(6)("id")
Json("match")("awayTeam")("bench")(6)("name")
Json("match")("awayTeam")("bench")(6)("position")
Json("match")("awayTeam")("bench")(6)("shirtNumber")
Json("match")("awayTeam")("bench")(7)("id")
Json("match")("awayTeam")("bench")(7)("name")
Json("match")("awayTeam")("bench")(7)("position")
Json("match")("awayTeam")("bench")(7)("shirtNumber")
Json("match")("goals")(1)("minute")
Json("match")("goals")(1)("extraTime")
Json("match")("goals")(1)("type")
Json("match")("goals")(1)("team")("id")
Json("match")("goals")(1)("team")("name")
Json("match")("goals")(1)("scorer")("id")
Json("match")("goals")(1)("scorer")("name")
Json("match")("goals")(1)("assist")("id")
Json("match")("goals")(1)("assist")("name")
Json("match")("goals")(2)("minute")
Json("match")("goals")(2)("extraTime")
Json("match")("goals")(2)("type")
Json("match")("goals")(2)("team")("id")
Json("match")("goals")(2)("team")("name")
Json("match")("goals")(2)("scorer")("id")
Json("match")("goals")(2)("scorer")("name")
Json("match")("goals")(2)("assist")("id")
Json("match")("goals")(2)("assist")("name")
Json("match")("goals")(3)("minute")
Json("match")("goals")(3)("extraTime")
Json("match")("goals")(3)("type")
Json("match")("goals")(3)("team")("id")
Json("match")("goals")(3)("team")("name")
Json("match")("goals")(3)("scorer")("id")
Json("match")("goals")(3)("scorer")("name")
Json("match")("goals")(3)("assist")
Json("match")("bookings")(1)("minute")
Json("match")("bookings")(1)("team")("id")
Json("match")("bookings")(1)("team")("name")
Json("match")("bookings")(1)("player")("id")
Json("match")("bookings")(1)("player")("name")
Json("match")("bookings")(1)("card")
Json("match")("bookings")(2)("minute")
Json("match")("bookings")(2)("team")("id")
Json("match")("bookings")(2)("team")("name")
Json("match")("bookings")(2)("player")("id")
Json("match")("bookings")(2)("player")("name")
Json("match")("bookings")(2)("card")
Json("match")("bookings")(3)("minute")
Json("match")("bookings")(3)("team")("id")
Json("match")("bookings")(3)("team")("name")
Json("match")("bookings")(3)("player")("id")
Json("match")("bookings")(3)("player")("name")
Json("match")("bookings")(3)("card")
Json("match")("bookings")(4)("minute")
Json("match")("bookings")(4)("team")("id")
Json("match")("bookings")(4)("team")("name")
Json("match")("bookings")(4)("player")("id")
Json("match")("bookings")(4)("player")("name")
Json("match")("bookings")(4)("card")
Json("match")("bookings")(5)("minute")
Json("match")("bookings")(5)("team")("id")
Json("match")("bookings")(5)("team")("name")
Json("match")("bookings")(5)("player")("id")
Json("match")("bookings")(5)("player")("name")
Json("match")("bookings")(5)("card")
Json("match")("bookings")(6)("minute")
Json("match")("bookings")(6)("team")("id")
Json("match")("bookings")(6)("team")("name")
Json("match")("bookings")(6)("player")("id")
Json("match")("bookings")(6)("player")("name")
Json("match")("bookings")(6)("card")
Json("match")("bookings")(7)("minute")
Json("match")("bookings")(7)("team")("id")
Json("match")("bookings")(7)("team")("name")
Json("match")("bookings")(7)("player")("id")
Json("match")("bookings")(7)("player")("name")
Json("match")("bookings")(7)("card")
Json("match")("substitutions")(1)("minute")
Json("match")("substitutions")(1)("team")("id")
Json("match")("substitutions")(1)("team")("name")
Json("match")("substitutions")(1)("playerOut")("id")
Json("match")("substitutions")(1)("playerOut")("name")
Json("match")("substitutions")(1)("playerIn")("id")
Json("match")("substitutions")(1)("playerIn")("name")
Json("match")("substitutions")(2)("minute")
Json("match")("substitutions")(2)("team")("id")
Json("match")("substitutions")(2)("team")("name")
Json("match")("substitutions")(2)("playerOut")("id")
Json("match")("substitutions")(2)("playerOut")("name")
Json("match")("substitutions")(2)("playerIn")("id")
Json("match")("substitutions")(2)("playerIn")("name")
Json("match")("substitutions")(3)("minute")
Json("match")("substitutions")(3)("team")("id")
Json("match")("substitutions")(3)("team")("name")
Json("match")("substitutions")(3)("playerOut")("id")
Json("match")("substitutions")(3)("playerOut")("name")
Json("match")("substitutions")(3)("playerIn")("id")
Json("match")("substitutions")(3)("playerIn")("name")
Json("match")("substitutions")(4)("minute")
Json("match")("substitutions")(4)("team")("id")
Json("match")("substitutions")(4)("team")("name")
Json("match")("substitutions")(4)("playerOut")("id")
Json("match")("substitutions")(4)("playerOut")("name")
Json("match")("substitutions")(4)("playerIn")("id")
Json("match")("substitutions")(4)("playerIn")("name")
Json("match")("substitutions")(5)("minute")
Json("match")("substitutions")(5)("team")("id")
Json("match")("substitutions")(5)("team")("name")
Json("match")("substitutions")(5)("playerOut")("id")
Json("match")("substitutions")(5)("playerOut")("name")
Json("match")("substitutions")(5)("playerIn")("id")
Json("match")("substitutions")(5)("playerIn")("name")
Json("match")("substitutions")(6)("minute")
Json("match")("substitutions")(6)("team")("id")
Json("match")("substitutions")(6)("team")("name")
Json("match")("substitutions")(6)("playerOut")("id")
Json("match")("substitutions")(6)("playerOut")("name")
Json("match")("substitutions")(6)("playerIn")("id")
Json("match")("substitutions")(6)("playerIn")("name")
Json("match")("referees")(1)("id")
Json("match")("referees")(1)("name")
Json("match")("referees")(1)("nationality")
Json("match")("referees")(2)("id")
Json("match")("referees")(2)("name")
Json("match")("referees")(2)("nationality")
Json("match")("referees")(3)("id")
Json("match")("referees")(3)("name")
Json("match")("referees")(3)("nationality")
Json("match")("referees")(4)("id")
Json("match")("referees")(4)("name")
Json("match")("referees")(4)("nationality")
The two answers below show how to use a function that I wrote, PrintJSONAccessors(), to unravel the collections and arrays produced by JsonConverter.ParseJson().
Using VBA and VBA-JSON to access JSON data from Wordpress API
How to get, JSON values to Work in VBA-JSON
Hey all I am trying to get the values in F_TableOtherFamily->F_Table and loop to get the name and values of whats inside that but I can not seem to do that with using the following code:
For Each msg As JObject In json1("entry")
Dim results As List(Of JToken) = msg("content")(formName).ToList()
For Each pair As JProperty In results
pair.CreateReader()
If pair.Descendants.Count > 1 Then
'has more values (like in a TABLE)
For Each child In pair
'not sure how to get other values
Next
Else
'It only has one value
Debug.Print(pair.Name)
Debug.Print(pair.Value.ToString)
End If
Next
Next
The json value for msg is:
{
"content": {
"#type": "application/xml",
"F_Form1": {
"#uid": "fb1ad4ec",
"F_TableOtherFamily": {
"F_Table": {
"F_OtherFamilyName": "BLANK1",
"F_OtherFamilyID": "BLANK2",
"F_OtherFamilyRelation": "BLANK3"
}
},
"F_ReceivedYorN": "Y",
"F_ContractNumber": "901841586"
}
},
"link": [
{
"#href": "../../../../../secure/org/data/c76df8888ada/F_Form1/fb1ad4ec",
"#rel": "edit"
}
]
}
The value for child is:
{
"F_Table": {
"F_OtherFamilyName": "BLANK1",
"F_OtherFamilyID": "BLANK2",
"F_OtherFamilyRelation": "BLANK3"
},
"F_Table": {
"F_OtherFamilyName": "BLANK1-1",
"F_OtherFamilyID": "BLANK2-2",
"F_OtherFamilyRelation": "BLANK3-3"
}
}
I am not sure how to go about looping to get the values inside F_Table??
a Json reader (like the one from newtonsoft) should solve your problem
Take a look at this
How to read JSON http post response using VB
I need to parse a simple Json, but the answer is not allways the same, in the past i have created a class with tools like http://jsonutils.com/ but in this case one of the parameter changes.. this is an example of the JSON:
{"success": 1,
"message": "Registros recuperados",
"data": {
"rows": [
{
"id_jugador": "454",
"nombre": "ALEXANDER",
"apellido": "CABRERA",
"id_equipo": "5",
"equipo": "TIBURONES",
"hr": "21"
}
]
},
"total": 1
}
The problem is that the last item (hr in this case, changes some time will be hits, or have some other name), until now i have been using something like this..
jsonObjectIntance = JsonConvert.DeserializeObject(Of jsonObjectClass)(jsonString)
how do I parse it if the last parameter changes?? the hr itself con be other baseball statistics like hits, or doubles, triples, strikeouts, etc... , thanks!
thanks to #OneFineDay for the link, the difficult part for me was the access to data inside the object.
Dim item As Object = JsonConvert.DeserializeObject(Of Object)(json)
Dim success as string = item("success")
Dim data As Object = item("data")
Dim rows As JArray = data("rows")
DataGridView1.DataSource = rows
Just confused with one little thing.
I am currently getting { "data": [ { "response": "true" } ] } with the following code.
But I simple want to get { "response": "true" }.
I tried every way I can but I kept failing.
I will appreciate a lot if you can help me with it.
Set Dataset = JSON.parse("{ ""data"": [] }")
Set Record = JSON.parse("{}")
Record.set "response", "true"
Dataset.data.push(Record)
Set Record = nothing
Data = JSON.stringify(Dataset, null, 2)
Set Record = JSON.parse("{}")
Record.set "response", "true"
Data = JSON.stringify(Record, null, 2)
I assume that JSONObject.data.push adds the record to an unnamed array.