How to invoke a discord bot command via rest api?

I want to invoke the discord bot command with an HTTP API call.

Sample command: /command parameter

How can I do this?

I sent a message via discord API into chat but the bot can’t recognise it as a command. It was posted as regular text.

CURL Example (You can import into postman) change CHANNEL_ID and AUTH_TOKEN accordingly:

curl 'https://discord.com/api/v9/channels/______CHANNEL_ID_____/messages' \
  -H 'authorization: ______AUTH_TOKEN_____' \
  -H 'content-type: application/json' \
  --data-raw '{"content":"/command parameter"}' \
  --compressed

Solution

1.Login to Discord and send a command to the right bot For example: /imagine prompt: SuperHero.

2.Look at the contents of the request in Fiddler (well, or in the browser)

3.Send the same request in the future. Profit

 static string PassPromptToSelfBot(string prompt)
 {
    WebClient client = new WebClient();
    client.Headers.Add("Authorization", "qwertyqwertyqwerty-{U SECRET KEY}");
    client.Headers.Add("Content-Type", "application/json");

    var payload = new
    {
        type = 2,
        application_id = "936929561302675456", // U AppId
        guild_id = "1088230970144063569", // U guild_id etc...
        channel_id = "1088230970655776809",
        session_id = "836d48312b8a69900150ab05cdb0ec78",
        data = new
        {
            version = "1077969938624553050",
            id = "938956540159881230",
            name = "imagine\r\n",
            type = 1,
            options = new []
            {
                new{type = 3,
                name = "promt",
                value = $"{prompt}"}
            },
            application_command = new
            {
                id = "938956540159881230",
                application_id = "936929561302675456",
                version = "1077969938624553050",
                default_permission = true,
                default_member_permissions = 0,
                type = 1,
                nsfw = false,
                name = "imagine",
                description = "Create images with Midjourney\r\n",
                dm_permission = true,

// ----------- Next data json here...
//
//And Send data:

 var payloadJson = JsonConvert.SerializeObject(payload);
        var response = client.UploadString("https://discord.com/api/v9/interactions", "POST", payloadJson);
        return response;

request looks something like this