Azure Cosmos DB + Functions Cookbook - HTTP query json

function.json

{
  "bindings": [
    {
      "name": "query",
      "type": "httpTrigger",
      "direction": "in"
    },
    {
      "name": "$return",
      "type": "http",
      "direction": "out"
    },
    {
      "type": "documentDB",
      "name": "documents",
      "databaseName": "<your-database-name>",
      "collectionName": "<your-collection-name>",
      "sqlQuery": "SELECT * FROM d WHERE d.name = {Name} and d.city = {City}",
      "connection": "<connectionstring-setting-name>",
      "direction": "in"
    }
  ],
  "disabled": false
}