Cosmos DB connection configuration 'my-cosmos-unique-name_DOCUMENTDB' does not exist.

Question

Hi, trying to complete excercise Read data with input bindings. Hovewer encounter an error.

index.js:

module.exports = function (context, req) {

    console.log(JSON.stringify(context));
    console.log(JSON.stringify(req));
    
    var bookmark = context.bindings.bookmark

    if(bookmark){
        context.res = {
            body: { "url": bookmark.url },
            headers: {
                'Content-Type': 'application/json'
            }
        };
    }
    else {
        context.res = {
            status: 404,
            body : "No bookmarks found",
            headers: {
                'Content-Type': 'application/json'
            }
        };
    }

    context.done();
};

function.json:

{
    "bindings": [
      {
        "authLevel": "function",
        "type": "httpTrigger",
        "direction": "in",
        "name": "req",
        "methods": [
          "get",
          "post"
        ]
      },
      {
        "type": "http",
        "direction": "out",
        "name": "res"
      },
      {
        "name": "bookmark",
        "direction": "in",
        "type": "cosmosDB",
        "partitionKey": "{id}",
        "databaseName": "func-io-learn-db",
        "containerName": "Bookmarks",
        "connection": "my-cosmos-unique-name_DOCUMENTDB",
        "id": "{id}"
      }
    ]
  }

The error I'm getting:

Cosmos DB connection configuration 'my-cosmos-unique-name_DOCUMENTDB' does not exist. Make sure that it is a defined App Setting.

Operating System: Linux

Runtime version: 4.1036.3.3

Node 20 LTS

This question is related to the following Learning Module

Answer 1

Hi Ivan Alieksieienko,

Thank you for reaching out to Microsoft Q & A forum. 

According to the documentation in the "Modify your function's JSON implementation code" section, step 2 advises replacing "your-database" with the name of your Azure Cosmos DB account. 

For example, in the function.json file, update "connection": "your-database_DOCUMENTDB" to "connection": "Ivan Alieksieienko1234_DOCUMENTDB". The placeholders provided in the documentation are meant to be replaced with your actual database details. 

Please refer to the attached screenshot for clarification. 

Please feel free to contact us if you have any additional questions.     

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