'AdlsClient' does not contain a definition for 'CreateDocumentAsync' - azure

Question

TARGET:
Create Console Application, which 1) Read json from Azure Data Lake Store 2) Store data to Cosmos DB as json.
PROBLEM:
I can read file (1), but cannot stores data to Cosmos. See error.
ERROR:
Severity Code Description Project File Line Suppression State
Error CS1061 'AdlsClient' does not contain a definition for 'CreateDocumentAsync' and no extension method 'CreateDocumentAsync' accepting a first argument of type 'AdlsClient' could be found (are you missing a using directive or an assembly reference?) CircleCustomActivityCosmosDB C:\AzureCoding\CustomActivityCosmosDB\Program.cs
CODE:
private async Task CreateDocumentsAsync()
{
string fileName = "/myjsonfile.json";
// Obtain AAD token for ADLS
var creds = new ClientCredential(applicationId, clientSecret);
var clientCreds = ApplicationTokenProvider.LoginSilentAsync(tenantId, creds).GetAwaiter().GetResult();
// Create ADLS client object
AdlsClient client = AdlsClient.CreateClient(adlsAccountFQDN, clientCreds);
String json = "";
//Read file contents
using (var readStream = new StreamReader(client.GetReadStream(fileName)))
{
string line;
while ((line = readStream.ReadLine()) != null)
{
Console.WriteLine("Read file Line: " + line);
json += line;
}
}
//Read file to json
JsonTextReader reader = new JsonTextReader(new StringReader(json));
//Storing json to CosmosDB
Uri collectionUri = UriFactory.CreateDocumentCollectionUri(databaseName, collectionName);
//ERROR HAPPENS HERE - 'AdlsClient' does not contain a definition for 'CreateDocumentAsync' and no extension method 'CreateDocumentAsync'
await client.CreateDocumentAsync(collectionUri, reader);
}
}

Answer 1

There is no CreateDocumentAsync method defined for the class AdlsClient, see the docs
You need a CosmosDB client to create the document there, I think you want to use DocumentClient.CreateDocument instead.
The AdlsClient class gives to methods to access the Azure Data Lake Store only, not the CosmosDB datastore. For that, you need the DocumentClient class, see the docs.
So summarized:
TARGET: Create Console Application, which 1) Read json from Azure Data Lake Store 2) Store data to Cosmos DB as json.
for 1) you need AdlsClient (to access adls)
for 2) you need DocumentClient (to access cosmosdb)