Templating issue with Mail library - config documentation?

[Budsy]

When using the template processing of the SendTemplatedEmailAsync() method, I get errors:

InvalidOperationException: Sequence contains no elements
System.Linq.Enumerable.First(IEnumerable source)

        await emailSender.SendTemplatedEmailAsync("mykey", context, user);

System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()

I appears that the system is not finding the templates. I probably have my config wrong or something. My issues has more to do with a need to have a clearer documentation of the configuration needed. The samples seem to have a few different arrangements of configuration elements in the .json files. Also, the libraries should throw meaningful exception messages if possible.

[sandorfr]

for your error, my guess is your files are not copied. You probably need something like that in your csproj file:

  <ItemGroup>
    <None Remove="MailTemplates\*.hbs" />
  </ItemGroup>
  <ItemGroup>
    <Content Include="MailTemplates\*.hbs">
      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
    </Content>
  </ItemGroup>

[sandorfr]

On the exception I created an issue on the right repo geeklearningio/gl-dotnet-templating#28

In regards to the documentation I couldn't agree more, we need to write it or no one will be able to use it.

I guess you json issue are related to the storage configuration. Does that wiki page help: https://github.com/geeklearningio/gl-dotnet-storage/wiki/Configuration ?

[Budsy]

Thanks Sandor, very much. The docs in the Wiki are helpful, though I still get empty IEnumerable exceptions, which I think means that there are no templates found. My templates are copied over to the right places though. I’ll keep playing with that. If I give a non-existent path in the config, the routines crash harder, but if the path is ‘reasonable’ I just get empty result sets I guess, though something is still not right for me. In the meantime, I extended the GeekLearning.Email and GeekLearning.Email.Smtp projects so I can use Cc, Bcc, Reply-To, and file attachments. It is all working great!!. I really needed the Reply-To, because some shared hosting services (SmarterASP.NET for example) require the ‘From’ address to match the email authentication user name from an account hosted on their servers. In such cases the ‘Reply-To’ field allows the emails that are received to have friendly and functional reply addresses. And attachments are a must in my web projects. Bob Dickow

[sandorfr]

Which storage configuration are you using and what providers do you have in your startup.cs?

Regarding your improvements a PR is more than welcome!

[Budsy]

Hi Sandor, Mostly everything works: ```csharp public void ConfigureServices(IServiceCollection services) { services.AddMvc(); services.AddLogging(); services.AddStorage().AddFileSystemStorage(this.HostingEnvironment.ContentRootPath); // WebRootPath does not work either. services.Configure<StorageOptions>(Configuration.GetSection("Storage")); services.AddTemplating().AddHandlebars(); services.AddEmail().AddSmtpEmail(); services.Configure<EmailOptions>(Configuration.GetSection("Email")); } ``` Bob Dickow

[sandorfr]

Can I be a bit annoying and ask you to not reply code using emails as it does not supports markdown and outputs really hard to read posts (and cluttered with previous comment).

Can you share your directory structure and the relevant part of your json config (without any sensitive information ofc).

[Budsy]

Sandor, Not annoying at all, I really appreciate your help. I have attached my VS project setup as a screen shot clip. And here is my latest config. I keep trying different arrangements. I’m putting my templates in a Content folder under wwwroot. I have tried it various ways, such as in the project root, always with the same result. Thank you! Bob Here is my config: ```json { "Logging": { "IncludeScopes": false, "LogLevel": { "Default": "Debug", "System": "Information", "Microsoft": "Information" } }, "ConnectionStrings": { "DefaultConnection": "Here I am" }, "Email": { "Provider": { "Type": "Smtp", "Parameters": { "Host": "---------", "Port": "----", "UserName": "-----", "Password": "-----" } }, "DefaultSender": { "Email": "dickow@turbonet.com", "DisplayName": "Bob Dickow" }, "TemplateStorage": "Templates", "Mockup": { "Recipients": [], "Exceptions": { "Emails": [], "Domains": [] } } }, "Storage": { "Providers": { "MyFileSystem": { "Type": "FileSystem", "RootPath": "~/wwwroot" /* tried several other paths too */ } }, "Stores": { "Templates": { "ProviderName": "MyFileSystem", "FolderName": "Content/Templates" } } } } ```` From: Sandor [mailto:notifications@github.com] Sent: Sunday, April 15, 2018 8:30 PM To: geeklearningio/gl-dotnet-email Cc: Budsy; Author Subject: Re: [geeklearningio/gl-dotnet-email] Templating issue with Mail library - config documentation? (#31) Can I be a bit annoying and ask you to not reply code using emails as it does not supports markdown and give really hard to read posts (and cluttered with previous comment). Can you share your directory structure and the relevant part of your json config (without any sensitive information ofc). — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#31 (comment)> , or mute the thread <https://github.com/notifications/unsubscribe-auth/AH3puZghQ7zTrETQHrnFYtntbAGx_2MYks5tpBAvgaJpZM4TVYGb> . <https://github.com/notifications/beacon/AH3puSukIkIqUDV79ES89cbRWtolvk0nks5tpBAvgaJpZM4TVYGb.gif>

[sandorfr]

no email please it destroys the rendering on github...

[sandorfr]

and what is your directory structure?
the path in RootPath is not mandatory. However it does not support ~. Hence it should be just wwwroot. It will be relative to this.HostingEnvironment.ContentRootPath you specified at startup.

Given that, the templates would be expected to be in wwwroot/Content/Templates. Is it what you have?

In addition, Templates should be considered code so, I would recommend moving them at the root of the project Content/Templates and including it as content as I suggested earlier. You don't want them to be served.

[Budsy]

Thanks for the tips. I'll try that. I did have the templates in the project root too, but have been experimenting using pure trial and error. Mostly error I think.