How to insert data in cosmos DB with azure JavaScript function app? - azure

Question

I am trying to insert data from azure javascript function app to cosmos DB.
This is the function.json File
{
"bindings": [
{
"type": "cosmosDBTrigger",
"name": "documents",
"direction": "in",
"leaseCollectionName": "leases",
"connectionStringSetting": "CosmosDBConnection",
"databaseName": "roi",
"collectionName": "reports",
"createLeaseCollectionIfNotExists": "true"
},
{
"type": "http",
"direction": "out",
"name": "res"
}
]
}
index.js have a code like this.
module.exports = async function (context, documents) {
if (!!documents && documents.length > 0) {
context.log('Document Id: ', documents[0].id);
}
}
Below images will have the error in the application.
Is there any function or query to insert the data ? the request data which is coming from api will look like this.(its coming in rawBody property of request)
When i am fetching the data its workign fine.
{
"name": "inputDocumentIn",
"type": "cosmosDB",
"databaseName": "roi",
"collectionName": "reports",
"sqlQuery": "SELECT * from reports r",
"connectionStringSetting": "CosmosDBConnection",
"direction": "in"
}
local.setting.json file
{
"IsEncrypted": false,
"Values": {
"AzureWebJobsStorage": "UseDevelopmentStorage=true",
"AzureWebJobsDashboard": "",
"FUNCTIONS_WORKER_RUNTIME": "node",
"CosmosDBConnection": "AccountEndpoint=.....;"
},
"Host": {
"LocalHttpPort": 7071,
"CORS": "*"
}
}
With this azure value in local.setting.ts file , i m getting following error.

Answer 1

Please check if the Connection String is pointing to the correct account and check if it was caused by the firewall and networks. Go to your cosmos db account on azure portal and click "Firewall and virtual networks". You can select "All networks" or "Selected networks" with your current IP filled in it.

Answer 2

This sounds like some some dependency conflict. Could you do a dotnet clean on the project folder and then verify that all projects (in case you have project dependencies) have the latest version of the Microsoft.Azure.WebJobs.Extensions.CosmosDB package (currently 3.0.5)?

Answer 3

The solution of the above problem is :
I have changed function.json file with this code.
{
"bindings": [
{
"authLevel": "anonymous",
"type": "httpTrigger",
"direction": "in",
"methods": [ "post" ],
"name": "req"
},
{
"type": "http",
"direction": "out",
"name": "res"
},
{
"type": "cosmosDB",
"name": "outputDocument",
"databaseName": "roi",
"collectionName": "reports",
"createIfNotExists": true,
"connectionStringSetting": "CosmosDBConnection",
"direction": "out",
"partitionKey": "/id"
}
],
"disabled": false
}
and the request coming from front end will be manipulate like this.
module.exports = function (context, req) {
if (req.body) {
context.bindings.outputDocument = req.body;
var responseBody = {};
responseBody.message = "Wow! data with id '" + req.body.id + "' was created!";
context.res = {
status: 201,
body:responseBody
};
}
else {
context.res = {
status: 400,
body: { "message" : "Please pass a valid object in the request body"}
};
}
context.done();
}