I have added the telemetry in Http trigger function by adding package Microsoft.ApplicationInsights" Version="2.17.0" to view the logs in application insight.
private readonly TelemetryClient _telemetry;
public GoogleAuth(ShoppingContentService service, int maxListPageSize,TelemetryConfiguration telemetryConfiguration)
{
this.service = service;
this.maxListPageSize = maxListPageSize;
this._telemetry = new TelemetryClient(telemetryConfiguration);
}
and I am using this telemetry inside my http trigger function .
_telemetry.TrackTrace($"[GoogleProductData]: Request body:{data}");
But I am getting this error.
An unhandled host error has occurred.
[2021-06-17T13:08:55.752Z] Microsoft.Extensions.DependencyInjection.Abstractions: Unable to resolve service for type 'Google.Apis.ShoppingContent.v2_1.ShoppingContentService' while attempting to activate 'ShoppingSamples.Content.GoogleAuth'.
Pls follow this tutorial and using Microsoft.Azure.WebJobs.Logging.ApplicationInsights instead. This is recommended by official document. This is my testing code( just create a new http trigger function in visual studio)
using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using Microsoft.ApplicationInsights;
using Microsoft.ApplicationInsights.Extensibility;
namespace FunctionApp1
{
public class Function1
{
private readonly TelemetryClient telemetryClient;
/// Using dependency injection will guarantee that you use the same configuration for telemetry collected automatically and manually.
public Function1(TelemetryConfiguration telemetryConfiguration)
{
this.telemetryClient = new TelemetryClient(telemetryConfiguration);
}
[FunctionName("Function1")]
public async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
ILogger log)
{
log.LogInformation("C# HTTP trigger function processed a request.");
string name = req.Query["name"];
string requestBody = await new StreamReader(req.Body).ReadToEndAsync();
dynamic data = JsonConvert.DeserializeObject(requestBody);
name = name ?? data?.name;
string responseMessage = string.IsNullOrEmpty(name)
? "This HTTP triggered function executed successfully. Pass a name in the query string or in the request body for a personalized response."
: $"Hello, {name}. This HTTP triggered function executed successfully.";
return new OkObjectResult(responseMessage);
}
}
}
and adding APPINSIGHTS_INSTRUMENTATIONKEY to local.settings.json
{
"IsEncrypted": false,
"Values": {
"AzureWebJobsStorage": "UseDevelopmentStorage=true",
"FUNCTIONS_WORKER_RUNTIME": "dotnet",
"APPINSIGHTS_INSTRUMENTATIONKEY": "instrument_key_here"
}
}
I have an Azure function that get an HTTP request , this azure function call a Stored Procedure who update the database,
The Stored Procedure works well and update the table in DB.
But when i ant to simulate this request with postMan i had error(500 :Internal Serveur Erro).
Here is my Function Azure:
using System.IO;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.WebJobs;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using System;
using Core.Handlers;
using System.Text.Json;
using Newtonsoft.Json.Linq;
namespace RealTimeTriggerFunctions
{
public static class SendToAzureSql
{
private static readonly string AZURE_TABLE1=
Environment.GetEnvironmentVariable("AZURE_TABLE1");
// Handler
private static AzureSqlHandler azSqlHandler;
[FunctionName("SendToAzureSql")]
public static async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)] HttpRequest req,
ILogger log)
{
string procedureName = "";
try
{
string requestBody = await new StreamReader(req.Body).ReadToEndAsync();
if(string.IsNullOrEmpty(requestBody))
{
return new BadRequestResult();
}
dynamic message = JsonConvert.DeserializeObject(requestBody);
if (message == null)
{
return new BadRequestResult();
}
log.LogInformation((string)message.type.ToString()+ " progress...");
switch (message.type.ToString())
{
case "xx.yy.zz.event.table1.table1":
procedureName = "stored_table1";
InitHandlers(log, AZURE_TABLE1);
break;
default:
return new BadRequestObjectResult("Wrong Request!");
}
var dataJson = JsonDocument.Parse(requestBody);
string actionType = message.type.ToString().Contains("deleted") ? "Deleted": "Default";
await azSqlHandler.UpsertItemAsync(procedureName, actionType, payload:
dataJson.RootElement);
return new OkObjectResult(message.type.ToString() + " Processed");
}
catch (Exception e)
{
log.LogError($"An error occurred while processing request : '{e.Message}'");
throw e;
}
}
/// <summary>
/// Init connexions
/// </summary>
private static void InitHandlers(ILogger log, string connectionString)
{
// Create handler
azSqlHandler = new AzureSqlHandler(log, connectionString);
}
}
}
I call this request in POST : http://localhost:7071/API/SendToAzureSql I get 500.
I found my answer here:
Fetching access token for keyvault
i run az- login in my Azure cli and it Works
I'm attempting to developer an Azure Function App which is triggered by a Http Request and takes the information on said request and added it into a Table in Table Storage. I developed in the portal and have been trying to redo the whole thing locally and publish it to Azure but running into issues with triggering the function and actually having it add to the Table I want it to add too... any help would be really appreciated!
This is what I have so far:
using System.IO;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.WebJobs;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using Microsoft.Azure.WebJobs.Extensions.Http;
namespace LookUpService
{
public static class AddConnectionDetails
{
[FunctionName("AddConnectionDetails")]
public static async Task<IActionResult> Run([HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)]HttpRequest req, ILogger log, ICollector<SocietyConnection> lookupTable)
{
string requestBody = await new StreamReader(req.Body).ReadToEndAsync();
dynamic data = JsonConvert.DeserializeObject(requestBody);
lookupTable.Add(new SocietyConnection()
{
PartitionKey = data.PartitionKey,
RowKey = data.RowKey,
Connection = data.Connection,
Organisation = data.Organisation
});
return new OkObjectResult($"{data.Organisation}({data.PartitionKey}) {data.RowKey} added to LookUp Table Storage");
}
public class SocietyConnection
{
public string PartitionKey { get; set; }
public string RowKey { get; set; }
public string Connection { get; set; }
public string Organisation { get; set; }
}
}
}
It seems that theres no actual trigger on the function when i've published it and it isnt connecting to the table I want to put stuff into...
Let me know if I've not made anything clear enough!
First, if you develop code on local, you should bebug first. if the function works fine, then publish this function app to azure.
For your requirement, please use below code, it works fine on my side:
using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using Microsoft.WindowsAzure.Storage.Table;
namespace FunctionApp49
{
public class LogEntity : TableEntity
{
public string OriginalName { get; set; }
}
public static class Function1
{
[FunctionName("Function1")]
public static async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
[Table("AzureWebJobsHostLogscommon")] CloudTable cloudTable,
ILogger log)
{
log.LogInformation($"C# Timer trigger function executed at: {DateTime.Now}");
TableQuery<LogEntity> rangeQuery = new TableQuery<LogEntity>().Where(
TableQuery.CombineFilters(
TableQuery.GenerateFilterCondition("PartitionKey", QueryComparisons.Equal,
"FD2"),
TableOperators.And,
TableQuery.GenerateFilterCondition("RowKey", QueryComparisons.GreaterThan,
"t")));
// Execute the query and loop through the results
foreach (LogEntity entity in
await cloudTable.ExecuteQuerySegmentedAsync(rangeQuery, null))
{
log.LogInformation(
$"{entity.PartitionKey}\t{entity.RowKey}\t{entity.Timestamp}\t{entity.OriginalName}");
}
return new OkObjectResult("111111111111111111");
}
}
}
Have a look of this doc:
https://learn.microsoft.com/en-us/azure/azure-functions/functions-bindings-storage-table?tabs=csharp#cloudtable
I know that in springboot you can call DAO directly from sql string.
I.E
SqlQuery = "
SELECT new com.testProject.model.testDAO(test.country, test.code, sum(case when test.dummy1 = 'POS' then 1 else 0 end), sum(case when test.dummy2 = 'POS' then 1 else 0 end))
FROM test";
But is Possible to Call a DAO from Sql string in C#? I Removed the DAO from the query to make it work:
SqlQuery = "
SELECT test.country, test.code, sum(test.dummy1 = 'POS' ? 1 : 0) as dumm1, sum(test.dummy2 = 'POS' ? 1 : 0) as dummy2
FROM test";
Is there any way to call DAO inside SQL query string?
Since you said you are using azure http trigger with cosmos db input,there is no such DAO mechanism like spring boot with query string param in cosmos db input per my knowledge.
However,based on the example provided on the Azure Function Cosmos Db Input document,it supports using custom Object Class to map the query result from sql. Please refer to my test:
Sample data in cosmos db :
Azure Function Code:
using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using System.Collections.Generic;
namespace CosmosTriggerCore
{
public static class Function1
{
[FunctionName("Function1")]
public static async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)] HttpRequest req,
[CosmosDB(
databaseName: "db",
collectionName: "coll",
ConnectionStringSetting = "cosmosdbstring",
SqlQuery = "SELECT top 2 * FROM c")]
IEnumerable<TestDoc> testDocItems,
ILogger log)
{
log.LogInformation("C# HTTP trigger function processed a request.");
foreach (TestDoc doc in testDocItems)
{
log.LogInformation(doc.Id);
log.LogInformation(doc.Name);
}
return new OkResult();
}
}
public class TestDoc
{
public string Id { get; set; }
public string Name { get; set; }
}
}
I used TestDoc Class to accept the query result and i can access the properties in the code.
I'm trying to do a simple Azure Function to learn about it. There will be 3 functions:
1 function to insert a row into a table of a database. This table will contain the current date and a string parameters typed by the user and passed by GET.
1 function similar to the previous one, but passing the parameter by POST.
1 function to read the table and show its content.
I've been able to do the first and the third ones. But I can't pass the parameter by POST. I've looked for examples but I couldn't run them with success. The client app is a Windows Forms one.
Could anyone show me an example anout how to pass parameters by POST to the function and how to read them?
Thank's in advance
EDIT:
Here's the code to pass the parameters by GET (this is working fine):
private void button2_Click(object sender, EventArgs e)
{
string cadena = lsql1.Text + "?notas=" + tNotas.Text;
try
{
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(cadena);
HttpWebResponse res = (HttpWebResponse)req.GetResponse();
if (res.StatusCode == HttpStatusCode.OK)
{
MessageBox.Show("Grabado");
}
else
{
MessageBox.Show(res.StatusDescription);
}
}catch (WebException ex)
{
using (Stream s = ex.Response.GetResponseStream())
{
StreamReader sr = new StreamReader(s);
string text = sr.ReadToEnd();
text = text.Substring(1, text.Length - 2);
sr.Close();
text = text.Replace("\\", "");
text = "{" + text + "}";
Error mensajeError = JsonConvert.DeserializeObject<Error>(text);
MessageBox.Show(mensajeError.ExceptionMessage);
}
}
}
And here's the code to receive it and do the insert (this is working too):
[FunctionName("sql1")]
public static async Task<HttpResponseMessage> Run(HttpRequestMessage req, TraceWriter log)
{
try
{
log.Info("C# HTTP trigger function processed a request.");
var cnnString = "Server=SERVIDOR;Database=base_prueba;User ID =azure;Password=0000;Trusted_Connection=False;Encrypt=False;";
using (SqlConnection connection = new SqlConnection(cnnString))
{
connection.Open();
SqlCommand cmd = connection.CreateCommand();
DateTime fecha = DateTime.Today;
string notas = req.GetQueryNameValuePairs()
.FirstOrDefault(q => string.Compare(q.Key, "notas", true) == 0)
.Value;
// insert a log to the database
cmd.CommandText = "INSERT INTO Prueba_Azure (fecha, notas) VALUES ('" + fecha.ToString() + "', '" + notas + "')";
cmd.ExecuteNonQuery();
}
// Get request body
dynamic data = await req.Content.ReadAsAsync<object>();
return name == req.CreateResponse(HttpStatusCode.OK, "Done");
}
catch (Exception ex)
{
HttpResponseMessage res = req.CreateErrorResponse(HttpStatusCode.InternalServerError, ex);
return res;
}
}
What I'm looking for is to to this by POST
In case google took you here, this is how it's done in March 2019 (Azure Functions v3):
public static async void Run(
[HttpTrigger(AuthorizationLevel.Function, "post", Route = null)]
HttpRequest req,
ILogger log)
{
var content = await new StreamReader(req.Body).ReadToEndAsync();
MyClass myClass = JsonConvert.DeserializeObject<MyClass>(content);
}
To get the request content from the request body(post request), you could use req.Content.ReadAsAsync method. Here is the code sample.
Sample request body.
{
"name": "Azure"
}
Define a class to deserialize the post data.
public class PostData
{
public string name { get;set; }
}
Get the post data and display it.
PostData data = await req.Content.ReadAsAsync<PostData>();
log.Info("name:" + data.name);
Client side code to send the post request.
HttpWebRequest req = (HttpWebRequest)WebRequest.Create("function-url");
req.Method = "POST";
req.ContentType = "application/json";
Stream stream = req.GetRequestStream();
string json = "{\"name\": \"Azure\" }";
byte[] buffer = Encoding.UTF8.GetBytes(json);
stream.Write(buffer,0, buffer.Length);
HttpWebResponse res = (HttpWebResponse)req.GetResponse();
If you are using System.Text.Json, you can read the POST data in one line:
public static async Task Run(
[HttpTrigger(AuthorizationLevel.Function, "post", Route = null)]
HttpRequest req,
ILogger log)
{
MyClass myClass = await JsonSerializer.DeserializeAsync<MyClass>(req.Body);
}
If you are using Newtonsoft.Json, see the answer by Allen Zhang.
For passing parameters as POST request, you need to do following things:
Make Json model of the parameters that u need to pass,ex:
{"UserProfile":{ "UserId":"xyz1","FirstName":"Tom","LastName":"Hank" }}
Post your data model using client like POSTMAN
Now you will get the posted content in HttpRequestMessage body, sample code is as follows:
[FunctionName("TestPost")]
public static HttpResponseMessage POST([HttpTrigger(AuthorizationLevel.Function, "put", "post", Route = null)]HttpRequestMessage req, TraceWriter log)
{
try
{
//create redis connection and database
var RedisConnection = RedisConnectionFactory.GetConnection();
var serializer = new NewtonsoftSerializer();
var cacheClient = new StackExchangeRedisCacheClient(RedisConnection, serializer);
//read json object from request body
var content = req.Content;
string JsonContent = content.ReadAsStringAsync().Result;
var expirytime = DateTime.Now.AddHours(Convert.ToInt16(ConfigurationSettings.AppSettings["ExpiresAt"]));
SessionModel ObjModel = JsonConvert.DeserializeObject<SessionModel>(JsonContent);
bool added = cacheClient.Add("RedisKey", ObjModel, expirytime); //store to cache
return req.CreateResponse(HttpStatusCode.OK, "RedisKey");
}
catch (Exception ex)
{
return req.CreateErrorResponse(HttpStatusCode.InternalServerError, "an error has occured");
}
}
You can just supply your custom data class as a parameter to the HttpTrigger argument. This way you don't have to mess with the json deserialization yourself:
public async Task<IActionResult> UpdateAccount(
[HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = "api/v1/accounts/{id:guid}")]
SomeData someData, // <----- Post body ends up here automatically
HttpRequest req,
Guid id,
ILogger log)
{
log.LogInformation ("Got POST with " + someData.Foo);
}
public class SomeData
{
public string Foo { get; set; } = null!;
}
The query string (name/value pairs) is by default sent in the HTTP message body of a POST request and not as query string. The GetQueryNameValuePairs method will parse the query string and will by default not work with POST request.
For the POST request you could use something similar to this:
var content = request.Content;
string contentInString = content.ReadAsStringAsync().Result;
You need to attach data to the body of the post request and process it properly:
public static async Task<HttpResponseMessage> Run(HttpRequestMessage req, TraceWriter log) {
// This reads your post request body into variable "data"
string data = await req.Content.ReadAsStringAsync();
// Here you can process json into an object
dynamic parsed = JsonConvert.DeserializeObject(data);
return exitstring == null
? req.CreateResponse(HttpStatusCode.BadRequest, "Something went wrong, sorry")
: req.CreateResponse(HttpStatusCode.OK);
}
You can find a slightly different example here and the exact example here.
It can be done in following way with custom class
Azure Function
[FunctionName("PostParameterFunction")]
public static async Task<HttpResponseMessage> Run([HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)]HttpRequestMessage req, ILogger log)
{
log.LogInformation("C# HTTP trigger function processed a request.");
try
{
// Convert all request perameter into Json object
var content = req.Content;
string jsonContent = content.ReadAsStringAsync().Result;
dynamic requestPram = JsonConvert.DeserializeObject<RequestModel>(jsonContent);
// Validate the required param
if (string.IsNullOrEmpty(requestPram.FirstName))
{
return req.CreateResponse(HttpStatusCode.OK, "Please enter First Name!");
}
if (string.IsNullOrEmpty(requestPram.LastName))
{
return req.CreateResponse(HttpStatusCode.OK, "Please enter Last Name!");
}
//Create object for partner Model to bind the response on it
RequestModel objRequestModel = new RequestModel();
objRequestModel.FirstName = requestPram.FirstName;
objRequestModel.LastName = requestPram.LastName;
//Return Request Model
return req.CreateResponse(HttpStatusCode.OK, objRequestModel);
}
catch (Exception ex)
{
return req.CreateResponse(HttpStatusCode.OK, "Cannot Create Request! Reason: {0}", string.Format(ex.Message));
}
}
Request Class:
public class RequestModel
{
public string FirstName { get; set; }
public string LastName { get; set; }
}
Request Input:
{
"FirstName": "Kiron",
"LastName":"Test"
}
PostMan Output Example:
I have done a very simple example to get data using POST request in Azure Function App. Please find the following example.
using System;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.Azure.WebJobs.Host;
namespace MyFunctions
{
public static class MyFunctionsOperations
{
[FunctionName("MyFunctionsOperations")]
public static async Task<HttpResponseMessage> Run([HttpTrigger(AuthorizationLevel.Function, "post", Route = null)]HttpRequestMessage req, TraceWriter log)
{
log.Info("C# HTTP trigger function processed a request.");
var headers = req.Headers;
string collection = headers.GetValues("collection").First(); //getting parameter from header
CosmosdbOperation obj = new CosmosdbOperation();
dynamic data = await req.Content.ReadAsAsync<object>(); //getting body content
Boolean response = await obj.MyFunctionExecution(data.ToString(), collection);
return (response)
? req.CreateResponse(HttpStatusCode.BadRequest, "Please pass a proper argument in the request body")
: req.CreateResponse(HttpStatusCode.OK, "Operation successfully executed..");
}
}
}
I like the WebApi approach of using [FromBody] attribute, so using IBinding I made my own. Now I can just pass in the object.
[AttributeUsage(AttributeTargets.Parameter | AttributeTargets.ReturnValue)]
[Binding]
public sealed class FromBodyAttribute : Attribute
{
}
public class FromBodyBinding : IBinding
{
private readonly ILogger logger;
public FromBodyBinding(ILogger logger)
{
this.logger = logger;
}
public Task<IValueProvider> BindAsync(BindingContext context)
{
// Get the HTTP request
var request = context.BindingData["req"] as DefaultHttpRequest;
return Task.FromResult<IValueProvider>(new FromBodyValueProvider(request, logger));
}
public bool FromAttribute => true;
public Task<IValueProvider> BindAsync(object value, ValueBindingContext context)
{
return null;
}
public ParameterDescriptor ToParameterDescriptor() => new ParameterDescriptor();
}
public class FromBodyBindingProvider : IBindingProvider
{
private readonly ILogger logger;
public FromBodyBindingProvider(ILogger logger)
{
this.logger = logger;
}
public Task<IBinding> TryCreateAsync(BindingProviderContext context)
{
IBinding binding = new FromBodyBinding(this.logger);
return Task.FromResult(binding);
}
}
public class FromBodyValueProvider : IValueProvider
{
private HttpRequest request;
private ILogger logger;
public FromBodyValueProvider(HttpRequest request, ILogger logger)
{
this.request = request;
this.logger = logger;
}
public async Task<object> GetValueAsync()
{
try
{
string requestBody = await new StreamReader(this.request.Body).ReadToEndAsync();
object result = JsonConvert.DeserializeObject(requestBody);
return result;
}
catch (System.Exception ex)
{
this.logger.LogCritical(ex, "Error deserializing object from body");
throw ex;
}
}
public Type Type => typeof(object);
public string ToInvokeString() => string.Empty;
}
public class BindingExtensionProvider : IExtensionConfigProvider
{
private readonly ILogger logger;
public BindingExtensionProvider(ILogger<Startup> logger)
{
this.logger = logger;
}
public void Initialize(ExtensionConfigContext context)
{
// Creates a rule that links the attribute to the binding
context.AddBindingRule<FromBodyAttribute>().Bind(new FromBodyBindingProvider(this.logger));
}
}
Then inside your Startup.cs file, add the binding.
public class Startup : IWebJobsStartup
{
public void Configure(IWebJobsBuilder builder)
{
JsonConvert.DefaultSettings = () =>
{
return new JsonSerializerSettings()
{
ContractResolver = new DefaultContractResolver
{
NamingStrategy = new CamelCaseNamingStrategy()
},
Formatting = Formatting.Indented
};
};
builder.Services.AddLogging();
builder.AddExtension<BindingExtensionProvider>();
}
}
Now you can just have a regular old class, just like WebApi!
[FunctionName("MyFunction")]
public async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Anonymous, "post", Route = null)] HttpRequest req,
[Binding.FromBody] dynamic data) // or you can change 'dynamic' to some class
{
string username = data?.username;
...
}
Here is the point --> https://learn.microsoft.com/en-us/azure/azure-functions/functions-bindings-http-webhook-trigger?tabs=in-process%2Cfunctionsv2&pivots=programming-language-csharp
[FunctionName("LuckyNumber")]
public static async Task<IActionResult> Run(
[HttpTrigger(
AuthorizationLevel.Function,
"get", "post",
Route = "max/{max:int?}/min/{min:int?}")] HttpRequest req,
int? max, <-- Parameter max
int? min, <-- Parameter min
ILogger log)
{
int? maxInternal = max;
int? minInternal = min;
}
PS: I´m using .NET 6
We can do it by just one line code using System.Text.Json.
public static async void Run(
[HttpTrigger(AuthorizationLevel.Function, "post", Route = null)]
HttpRequest req,
ILogger log)
{
MyClass myClass = await JsonSerializer.DeserializeAsync<MyClass>(req.Body);
}