Method postMessage

integrations/slack/src/index.ts:111–149

(
    key: IntegrationTaskKey,
    params: ChatPostMessageArguments
  )

  }

  postMessage(
    key: IntegrationTaskKey,
    params: ChatPostMessageArguments
  ): Promise<ChatPostMessageResponse> {
    return this.runTask(
      key,
      async (client) => {
        try {
          return client.chat.postMessage(params);
        } catch (error) {
          if (isPlatformError(error)) {
            if (error.data.error === "not_in_channel") {
              const joinResponse = await this.joinConversation(`Join ${params.channel}`, {
                channel: params.channel,
              });

              if (joinResponse.ok) {
                return client.chat.postMessage(params);
              }
            }
          }

          throw error;
        }
      },
      {
        name: "Post Message",
        params,
        icon: "slack",
        properties: [
          {
            label: "Channel ID",
            text: params.channel,
          },
          ...(params.text ? [{ label: "Message", text: params.text }] : []),
        ],
      }
    );
  }

  joinConversation(
    key: IntegrationTaskKey,