tailwind/src/wires/api/http/v1/wsPostCommand.js

tailwind is a base module for streaming and evented CQS applications.

'use strict';

const Command = require('commands-events').Command;

const sendMessage = require('./wsSendMessage'),
      validateCommand = require('./validateCommand');

const postCommand = {
  async send (socket, { app, message, writeModel }) {
    if (!socket) {
      throw new Error('Socket is missing.');
    }
    if (!app) {
      throw new Error('App is missing.');
    }
    if (!message) {
      throw new Error('Message is missing.');
    }
    if (!writeModel) {
      throw new Error('Write model is missing.');
    }

    const logger = app.services.getLogger();

    let command = message.payload;
    const token = message.token;

    try {
      validateCommand(command, writeModel);
    } catch (ex) {
      try {
        await sendMessage(socket, { type: 'error', statusCode: 400, payload: ex.message, procedureId: message.procedureId });
      } catch (exSendMessage) {
        logger.error('Failed to send message.', { ex });
      }

      return;
    }

    command = Command.wrap(command);
    command.addToken(token);

    app.api.incoming.write(command);

    try {
      await sendMessage(socket, { type: 'sentCommand', statusCode: 200, procedureId: message.procedureId });
    } catch (exSendMessage) {
      logger.error('Failed to send message.', { exSendMessage });
    }
  }
};

module.exports = postCommand;