description: If your issue is related to an exception make sure the error was thrown by Discord.Net, and not your code or another library.
If you get an `HttpException` with the error code `401`, then the error is caused by your bot's permissions, not dnet.
If you get an `HttpException` with the error code `401`, then the error is caused by your bot's permissions, not dnet.
If you have a issue that does directly relate to an API bug, feel free to open a [Q&A Discussion](https://github.com/discord-net/Discord.Net/discussions)
options:
- label: I verified the issue was caused by Discord.Net.
required: true
@@ -75,3 +76,11 @@ body:
```
validations:
required: false
- type: textarea
id: packages
attributes:
label: Packages
description: Please list all 3rd party packages in use if applicable, including their versions.
placeholder: Discord.Addons.Hosting V5.1.0, Discord.InteractivityAddon V2.4.0, etc.
## `InteractionService.ExecuteAsync()` always returns a successful result, how do i access the failed command execution results?
If you are using `RunMode.Async` you need to setup your post-execution pipeline around `CommandExecuted` events.
If you are using `RunMode.Async` you need to setup your post-execution pipeline around
`..Executed` events exposed by the Interaction Service.
## How do I check if the executing user has * permission?
Refer to the [documentation about preconditions]
[documentation about preconditions]: xref:Guides.ChatCommands.Preconditions
## How do I send the HTTP Response from inside the command modules.
Set the `RestResponseCallback` property of [InteractionServiceConfig] with a delegate for handling HTTP Responses and use
`RestInteractionModuleBase` to create your command modules. `RespondAsync()` and `DeferAsync()` methods of this module base will use the
`RestInteractionModuleBase` to create your command modules. `RespondWithModalAsync()`, `RespondAsync()` and `DeferAsync()` methods of this module base will use the
`RestResponseCallback` to create interaction responses.
## Is there a cleaner way of creating parameter choices other than using `[Choice]`?
@@ -49,4 +69,3 @@ It compares the _target base type_ key of the
This section answers basic questions and common mistakes in handling application commands, and responding to them.
This chapter mostly refers to interactions in general,
and will include questions that are common among users of the Interaction Framework
as well as users that register and handle commands manually.
## What's the difference between RespondAsync, DeferAsync and FollowupAsync?
@@ -24,33 +26,20 @@ DeferAsync will not send out a response, RespondAsync will.
## Im getting System.TimeoutException: 'Cannot respond to an interaction after 3 seconds!'
This happens because your computers clock is out of sync or your trying to respond after 3 seconds. If your clock is out of sync and you cant fix it, you can set the `UseInteractionSnowflakeDate` to false in the config.
This happens because your computer's clock is out of sync or you're trying to respond after 3 seconds.
If your clock is out of sync and you can't fix it, you can set the `UseInteractionSnowflakeDate` to false in the [DiscordSocketConfig].
## Bad form Exception when I try to create my commands, why do I get this?
@@ -143,6 +143,21 @@ In this case, user can only input Stage Channels and Text Channels to this param
You can specify the permitted max/min value for a number type parameter using the [MaxValueAttribute] and [MinValueAttribute].
#### Complex Parameters
This allows users to create slash command options using an object's constructor allowing complex objects to be created which cannot be infered from only one input value.
Constructor methods support every attribute type that can be used with the regular slash commands ([Autocomplete], [Summary] etc. ).
Preferred constructor of a Type can be specified either by passing a `Type[]` to the `[ComplexParameterAttribute]` or tagging a type constructor with the `[ComplexParameterCtorAttribute]`. If nothing is specified, the InteractionService defaults to the only public constructor of the type.
TypeConverter pattern is used to parse the constructor methods objects.
To use EFCore, you need a DbContext to access everything in your database. The DbContext will look like this. Here is an example entity to show you how you can add more entities yourself later on.
> To learn more about creating the EFCore model, visit the following [link](https://docs.microsoft.com/en-us/ef/core/get-started/overview/first-app?tabs=netcore-cli#create-the-model)
## Adding the DbContext to your Dependency Injection container
To add your newly created DbContext to your Dependency Injection container, simply use the extension method provided by EFCore to add the context to your container. It should look something like this
> You can find out how to get your connection string [here](https://www.connectionstrings.com/npgsql/standard/)
## Migrations
Before you can start using your DbContext, you have to migrate the changes you've made in your code to your actual database.
To learn more about migrations, visit the official Microsoft documentation [here](https://docs.microsoft.com/en-us/ef/core/managing-schemas/migrations/?tabs=dotnet-core-cli)
## Using the DbContext
You can now use the DbContext wherever you can inject it. Here's an example on injecting it into an interaction command module.
[!code-csharp[DBContext injected into interaction module](samples/InteractionModuleDISample.cs)]
## Using a different database provider
Here's a couple of popular database providers for EFCore and links to tutorials on how to set them up. The only thing that usually changes is the provider inside of your `DbContextOptions`
| Provider | Link |
|--|--|
| MySQL | [link](https://dev.mysql.com/doc/connector-net/en/connector-net-entityframework-core-example.html) |
For Serilog to log Discord events correctly, we have to map the Discord `LogSeverity` to the Serilog `LogEventLevel`. You can modify your log method to look like this.
[!code-csharp[Modifying your log method](samples/ModifyLogMethod.cs)]
## Testing
If you run your application now, you should see something similar to this
## Using your new logger in other places
Now that you have set up Serilog, you can use it everywhere in your application by simply calling
> Depending on your configured log level, the log messages may or may not show up in your console. Refer to [Serilog's github page](https://github.com/serilog/serilog/wiki/Configuration-Basics#minimum-level) for more information about log levels.
throw new InvalidOperationException($"No constructor found for \"{typeInfo.FullName}\".");
if (complexParameter.PrioritizedCtorSignature is not null)
{
var ctor = typeInfo.GetConstructor(complexParameter.PrioritizedCtorSignature);
if (ctor is null)
throw new InvalidOperationException($"No constructor was found with the signature: {string.Join(",", complexParameter.PrioritizedCtorSignature.Select(x => x.Name))}");
return ctor;
}
var prioritizedCtors = ctors.Where(x => x.IsDefined(typeof(ComplexParameterCtorAttribute), true));
switch (prioritizedCtors.Count())
{
case > 1:
throw new InvalidOperationException($"{nameof(ComplexParameterCtorAttribute)} can only be used once in a type.");
case 1:
return prioritizedCtors.First();
}
switch (ctors.Length)
{
case > 1:
throw new InvalidOperationException($"Multiple constructors found for \"{typeInfo.FullName}\".");
for (var i = 0; i < FlattenedParameters.Count - 1; i++)
if (!FlattenedParameters.ElementAt(i).IsRequired && FlattenedParameters.ElementAt(i + 1).IsRequired)
throw new InvalidOperationException("Optional parameters must appear after all required parameters, ComplexParameters with optional parameters must be located at the end.");
_flattenedParameterDictionary = FlattenedParameters?.ToDictionary(x => x.Name, x => x).ToImmutableDictionary();
var parameter = autocompleteHandlerResult.Command.Parameters.FirstOrDefault(x => string.Equals(x.Name, interaction.Data.Current.Name, StringComparison.Ordinal));
if(parameter?.AutocompleteHandler is not null)
if (autocompleteHandlerResult.Command._flattenedParameterDictionary.TryGetValue(interaction.Data.Current.Name, out var parameter) && parameter?.AutocompleteHandler is not null)
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
public static async Task<RestUserMessage> SendMessageAsync(IMessageChannel channel, BaseDiscordClient client,
/// <exception cref="NotSupportedException"><paramref name="filePath" /> is in an invalid format.</exception>
/// <exception cref="IOException">An I/O error occurred while opening the file.</exception>
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
public static async Task<RestUserMessage> SendFileAsync(IMessageChannel channel, BaseDiscordClient client,
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
public static async Task<RestUserMessage> SendFileAsync(IMessageChannel channel, BaseDiscordClient client,
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
public static Task<RestUserMessage> SendFileAsync(IMessageChannel channel, BaseDiscordClient client,
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
public static async Task<RestUserMessage> SendFilesAsync(IMessageChannel channel, BaseDiscordClient client,
/// Sends a file to this message channel with an optional caption.
/// </summary>
/// <remarks>
/// This method follows the same behavior as described in <see cref="IMessageChannel.SendFileAsync(Stream, string, string, bool, Embed, RequestOptions, bool, AllowedMentions, MessageReference, MessageComponent, ISticker[], Embed[])"/>.
/// Please visit its documentation for more details on this method.
/// </remarks>
/// <param name="stream">The <see cref="Stream" /> of the file to be sent.</param>
/// <param name="filename">The name of the attachment.</param>
/// <param name="text">The message to be sent.</param>
/// <param name="isTTS">Whether the message should be read aloud by Discord or not.</param>
/// <param name="embed">The <see cref="Discord.EmbedType.Rich"/> <see cref="Embed"/> to be sent.</param>
/// <param name="options">The options to be used when sending the request.</param>
/// <param name="isSpoiler">Whether the message attachment should be hidden as a spoiler.</param>
/// <param name="allowedMentions">
/// Specifies if notifications are sent for mentioned users and roles in the message <paramref name="text"/>.
/// If <c>null</c>, all mentioned roles and users will be notified.
/// </param>
/// <param name="messageReference">The message references to be included. Used to reply to specific messages.</param>
/// <param name="components">The message components to be included with this message. Used for interactions.</param>
/// <param name="stickers">A collection of stickers to send with the message.</param>
/// <param name="embeds">A array of <see cref="Embed"/>s to send with this response. Max 10.</param>
/// <returns>
/// A task that represents an asynchronous send operation for delivering the message. The task result
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
public Task<RestUserMessage> SendMessageAsync(string text = null, bool isTTS = false, Embed embed = null,
/// <exception cref="NotSupportedException"><paramref name="filePath" /> is in an invalid format.</exception>
/// <exception cref="IOException">An I/O error occurred while opening the file.</exception>
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
public Task<RestUserMessage> SendMessageAsync(string text = null, bool isTTS = false, Embed embed = null,
/// <exception cref="NotSupportedException"><paramref name="filePath" /> is in an invalid format.</exception>
/// <exception cref="IOException">An I/O error occurred while opening the file.</exception>
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
public Task<RestUserMessage> SendFileAsync(FileAttachment attachment, string text, bool isTTS = false,
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
public Task<RestUserMessage> SendFilesAsync(IEnumerable<FileAttachment> attachments, string text, bool isTTS = false,
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
public Task<RestUserMessage> SendMessageAsync(string text = null, bool isTTS = false, Embed embed = null,
/// <exception cref="NotSupportedException"><paramref name="filePath" /> is in an invalid format.</exception>
/// <exception cref="IOException">An I/O error occurred while opening the file.</exception>
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
public Task<RestUserMessage> SendFileAsync(FileAttachment attachment, string text, bool isTTS = false,
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
public Task<RestUserMessage> SendFilesAsync(IEnumerable<FileAttachment> attachments, string text, bool isTTS = false,
/// Sends a file to this message channel with an optional caption.
/// </summary>
/// <remarks>
/// This method follows the same behavior as described in <see cref="IMessageChannel.SendFileAsync(string, string, bool, Embed, RequestOptions, bool, AllowedMentions, MessageReference, MessageComponent, ISticker[], Embed[])"/>.
/// Please visit its documentation for more details on this method.
/// </remarks>
/// <param name="filePath">The file path of the file.</param>
/// <param name="text">The message to be sent.</param>
/// <param name="isTTS">Whether the message should be read aloud by Discord or not.</param>
/// <param name="embed">The <see cref="Discord.EmbedType.Rich" /> <see cref="Embed" /> to be sent.</param>
/// <param name="options">The options to be used when sending the request.</param>
/// <param name="isSpoiler">Whether the message attachment should be hidden as a spoiler.</param>
/// <param name="allowedMentions">
/// Specifies if notifications are sent for mentioned users and roles in the message <paramref name="text"/>.
/// If <c>null</c>, all mentioned roles and users will be notified.
/// </param>
/// <param name="messageReference">The message references to be included. Used to reply to specific messages.</param>
/// <param name="components">The message components to be included with this message. Used for interactions.</param>
/// <param name="stickers">A collection of stickers to send with the file.</param>
/// <param name="embeds">A array of <see cref="Embed"/>s to send with this response. Max 10.</param>
/// <returns>
/// A task that represents an asynchronous send operation for delivering the message. The task result
/// Sends a file to this message channel with an optional caption.
/// </summary>
/// <remarks>
/// This method follows the same behavior as described in <see cref="IMessageChannel.SendFileAsync(Stream, string, string, bool, Embed, RequestOptions, bool, AllowedMentions, MessageReference, MessageComponent, ISticker[], Embed[])"/>.
/// Please visit its documentation for more details on this method.
/// </remarks>
/// <param name="stream">The <see cref="Stream" /> of the file to be sent.</param>
/// <param name="filename">The name of the attachment.</param>
/// <param name="text">The message to be sent.</param>
/// <param name="isTTS">Whether the message should be read aloud by Discord or not.</param>
/// <param name="embed">The <see cref="Discord.EmbedType.Rich"/> <see cref="Embed"/> to be sent.</param>
/// <param name="options">The options to be used when sending the request.</param>
/// <param name="isSpoiler">Whether the message attachment should be hidden as a spoiler.</param>
/// <param name="allowedMentions">
/// Specifies if notifications are sent for mentioned users and roles in the message <paramref name="text"/>.
/// If <c>null</c>, all mentioned roles and users will be notified.
/// </param>
/// <param name="messageReference">The message references to be included. Used to reply to specific messages.</param>
/// <param name="components">The message components to be included with this message. Used for interactions.</param>
/// <param name="stickers">A collection of stickers to send with the file.</param>
/// <param name="embeds">A array of <see cref="Embed"/>s to send with this response. Max 10.</param>
/// <returns>
/// A task that represents an asynchronous send operation for delivering the message. The task result
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
public Task<RestUserMessage> SendMessageAsync(string text = null, bool isTTS = false, Embed embed = null,
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
public Task<RestUserMessage> SendFileAsync(FileAttachment attachment, string text, bool isTTS = false,
/// <exception cref="ArgumentOutOfRangeException">Message content is too long, length must be less or equal to <see cref="DiscordConfig.MaxMessageSize"/>.</exception>
/// <exception cref="ArgumentException">The only valid <see cref="MessageFlags"/> are <see cref="MessageFlags.SuppressEmbeds"/> and <see cref="MessageFlags.None"/>.</exception>
public Task<RestUserMessage> SendFilesAsync(IEnumerable<FileAttachment> attachments, string text, bool isTTS = false,
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