Chilkat Online Tools

CreateFunction VB.NET Example

AWS AppSync

' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

Dim rest As New Chilkat.Rest
Dim success As Boolean

Dim authAws As New Chilkat.AuthAws
authAws.AccessKey = "AWS_ACCESS_KEY"
authAws.SecretKey = "AWS_SECRET_KEY"

' Don't forget to change the region to your particular region. (Also make the same change in the call to Connect below.)
authAws.Region = "us-west-2"
authAws.ServiceName = "appsync"
' SetAuthAws causes Chilkat to automatically add the following headers: Authorization, X-Amz-Date
rest.SetAuthAws(authAws)

' URL: https://appsync.us-west-2.amazonaws.com/
' Use the same region as specified above.
success = rest.Connect("appsync.us-west-2.amazonaws.com",443,True,True)
If (success <> True) Then
    Debug.WriteLine("ConnectFailReason: " & rest.ConnectFailReason)
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If


' The following code creates the JSON request body.
' The JSON created by this code is shown below.

' Use this online tool to generate code from sample JSON:
' Generate Code to Create JSON

Dim json As New Chilkat.JsonObject
json.UpdateString("dataSourceName","string")
json.UpdateString("description","string")
json.UpdateString("functionVersion","string")
json.UpdateInt("maxBatchSize",123)
json.UpdateString("name","string")
json.UpdateString("requestMappingTemplate","string")
json.UpdateString("responseMappingTemplate","string")
json.UpdateString("syncConfig.conflictDetection","string")
json.UpdateString("syncConfig.conflictHandler","string")
json.UpdateString("syncConfig.lambdaConflictHandlerConfig.lambdaConflictHandlerArn","string")

' The JSON request body created by the above code:

' {
'   "dataSourceName": "string",
'   "description": "string",
'   "functionVersion": "string",
'   "maxBatchSize": number,
'   "name": "string",
'   "requestMappingTemplate": "string",
'   "responseMappingTemplate": "string",
'   "syncConfig": {
'     "conflictDetection": "string",
'     "conflictHandler": "string",
'     "lambdaConflictHandlerConfig": {
'       "lambdaConflictHandlerArn": "string"
'     }
'   }
' }

rest.AddHeader("Content-Type","application/x-amz-json-1.1")
rest.AddHeader("X-Amz-Target","CreateFunction")

Dim sbRequestBody As New Chilkat.StringBuilder
json.EmitSb(sbRequestBody)
Dim sbResponseBody As New Chilkat.StringBuilder
success = rest.FullRequestSb("POST","/v1/apis/{apiId}/functions",sbRequestBody,sbResponseBody)
If (success <> True) Then
    Debug.WriteLine(rest.LastErrorText)
    Exit Sub
End If

Dim respStatusCode As Integer = rest.ResponseStatusCode
Debug.WriteLine("response status code = " & respStatusCode)
If (respStatusCode <> 200) Then
    Debug.WriteLine("Response Header:")
    Debug.WriteLine(rest.ResponseHeader)
    Debug.WriteLine("Response Body:")
    Debug.WriteLine(sbResponseBody.GetAsString())
    Exit Sub
End If


Dim jResp As New Chilkat.JsonObject
jResp.LoadSb(sbResponseBody)

' The following code parses the JSON response.
' A sample JSON response is shown below the sample code.

' Use this online tool to generate parsing code from sample JSON:
' Generate Parsing Code from JSON




Dim DataSourceName As String = jResp.StringOf("functionConfiguration.dataSourceName")
Dim Description As String = jResp.StringOf("functionConfiguration.description")
Dim FunctionArn As String = jResp.StringOf("functionConfiguration.functionArn")
Dim FunctionId As String = jResp.StringOf("functionConfiguration.functionId")
Dim FunctionVersion As String = jResp.StringOf("functionConfiguration.functionVersion")
Dim MaxBatchSize As Integer = jResp.IntOf("functionConfiguration.maxBatchSize")
Dim Name As String = jResp.StringOf("functionConfiguration.name")
Dim RequestMappingTemplate As String = jResp.StringOf("functionConfiguration.requestMappingTemplate")
Dim ResponseMappingTemplate As String = jResp.StringOf("functionConfiguration.responseMappingTemplate")
Dim ConflictDetection As String = jResp.StringOf("functionConfiguration.syncConfig.conflictDetection")
Dim ConflictHandler As String = jResp.StringOf("functionConfiguration.syncConfig.conflictHandler")
Dim LambdaConflictHandlerArn As String = jResp.StringOf("functionConfiguration.syncConfig.lambdaConflictHandlerConfig.lambdaConflictHandlerArn")


' A sample JSON response body parsed by the above code:

' {
'   "functionConfiguration": {
'     "dataSourceName": "string",
'     "description": "string",
'     "functionArn": "string",
'     "functionId": "string",
'     "functionVersion": "string",
'     "maxBatchSize": number,
'     "name": "string",
'     "requestMappingTemplate": "string",
'     "responseMappingTemplate": "string",
'     "syncConfig": {
'       "conflictDetection": "string",
'       "conflictHandler": "string",
'       "lambdaConflictHandlerConfig": {
'         "lambdaConflictHandlerArn": "string"
'       }
'     }
'   }
' }