Description
Is your question related to a specific version? If so, please specify:
Azure Functions v2
What language does your question apply to? (e.g. C#, JavaScript, Java, All)
C#
Question
From https://github.com/dotnet/corefx/issues/41534 (System.Text.Json: Method not found System.Text.Encodings.Web.TextEncoder.FindFirstCharacterToEncodeUtf8)
Works perfectly well in every project except Azure Functions (v2).
Simply HTTP trigger an Azure Function and try and serialize (or deserialize) an object.
cc @electricessence, @fabiocav
Is there a workaround to this dependency version pinning issue?
This issue looks similar to #4906.
Here's a repro with a similar error:
System.Private.CoreLib: Exception while executing function: Function1. TestDependency: Method not found: 'System.Text.Encodings.Web.JavaScriptEncoder System.Text.Encodings.Web.JavaScriptEncoder.get_UnsafeRelaxedJsonEscaping()'.
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netcoreapp2.1</TargetFramework>
<AzureFunctionsVersion>v2</AzureFunctionsVersion>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.NET.Sdk.Functions" Version="1.0.29" />
<PackageReference Include="System.Text.Json" Version="4.6.0" />
</ItemGroup>
<ItemGroup>
<None Update="host.json">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</None>
<None Update="local.settings.json">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
<CopyToPublishDirectory>Never</CopyToPublishDirectory>
</None>
</ItemGroup>
</Project>public static class Function1
{
[FunctionName("Function1")]
public static async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Anonymous, "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);
var output = new MemoryStream();
using (var writer = new Utf8JsonWriter(output,
new JsonWriterOptions { Encoder = JavaScriptEncoder.UnsafeRelaxedJsonEscaping }))
{
writer.WriteString(Encoding.UTF8.GetBytes("name"), "Bob1");
writer.Flush();
}
name = System.Text.Json.JsonSerializer.Serialize(Encoding.UTF8.GetString(output.ToArray()));
return name != null
? (ActionResult)new OkObjectResult($"Hello, {name}")
: new BadRequestObjectResult("Please pass a name on the query string or in the request body");
}
}Http Functions:
Function1: [GET,POST] http://localhost:7071/api/Function1
[10/7/2019 3:09:01 AM] Host lock lease acquired by instance ID '000000000000000000000000B068BFBB'.
[10/7/2019 3:09:07 AM] Executing HTTP request: {
[10/7/2019 3:09:07 AM] "requestId": "a37a95c1-868d-484d-82d9-f9cc6e34ba3b",
[10/7/2019 3:09:07 AM] "method": "GET",
[10/7/2019 3:09:07 AM] "uri": "/api/Function1"
[10/7/2019 3:09:07 AM] }
[10/7/2019 3:09:07 AM] Executing 'Function1' (Reason='This function was programmatically called via the host APIs.', Id=c9432a44-ea43-4ad9-b45a-7b642c43f07c)
[10/7/2019 3:09:08 AM] Executed 'Function1' (Failed, Id=c9432a44-ea43-4ad9-b45a-7b642c43f07c)
[10/7/2019 3:09:08 AM] System.Private.CoreLib: Exception while executing function: Function1. TestDependency: Method not found: 'System.Text.Encodings.Web.JavaScriptEncoder System.Text.Encodings.Web.JavaScriptEncoder.get_UnsafeRelaxedJsonEscaping()'.
[10/7/2019 3:09:09 AM] Executed HTTP request: {
[10/7/2019 3:09:09 AM] "requestId": "a37a95c1-868d-484d-82d9-f9cc6e34ba3b",
[10/7/2019 3:09:09 AM] "method": "GET",
[10/7/2019 3:09:09 AM] "uri": "/api/Function1",
[10/7/2019 3:09:09 AM] "identities": [
[10/7/2019 3:09:09 AM] {
[10/7/2019 3:09:09 AM] "type": "WebJobsAuthLevel",
[10/7/2019 3:09:09 AM] "level": "Admin"
[10/7/2019 3:09:09 AM] }
[10/7/2019 3:09:09 AM] ],
[10/7/2019 3:09:09 AM] "status": 500,
[10/7/2019 3:09:09 AM] "duration": 2444
[10/7/2019 3:09:09 AM] }
Looks like the .NET Core 2.2 dependencies are overriding the newer ones that the user code might bring in/rely on:
https://github.com/Azure/azure-functions-host/blob/a63aeed826c4a1ee7c4e8c676bf7557c88a86ba1/src/WebJobs.Script.WebHost/WebJobs.Script.WebHost.csproj#L53-L66
For example: Microsoft.AspNetCore.App version 2.2.7 brings in the version 4.0.3.0 of the assembly where-as the version that S.T.Json depends on is 4.0.4.0 (this is the version that ships in-box with .NET Core 3.0 and is available as part of the latest 4.6.0 NuGet package).
The function output directory has the right dlls:
However, Azure Functions is loading the older dll first (that comes built-in with the azure functions cli):
