# goteamsnotify A package to send messages to a Microsoft Teams channel. [![Latest release][githubtag-image]][githubtag-url] [![Go Reference][goref-image]][goref-url] [![License][license-image]][license-url] [](https://github.com/atc0005/go-teams-notify) [](https://github.com/atc0005/go-teams-notify/actions/workflows/lint-and-build.yml) [](https://github.com/atc0005/go-teams-notify/actions/workflows/project-analysis.yml) ## Table of contents - [Project home](#project-home) - [Overview](#overview) - [Features](#features) - [Project Status](#project-status) - [Supported Releases](#supported-releases) - [Changelog](#changelog) - [Usage](#usage) - [Add this project as a dependency](#add-this-project-as-a-dependency) - [Webhook URLs](#webhook-urls) - [Expected format](#expected-format) - [How to create a webhook URL (Connector)](#how-to-create-a-webhook-url-connector) - [Examples](#examples) - [Basic](#basic) - [Specify proxy server](#specify-proxy-server) - [User Mention](#user-mention) - [Tables](#tables) - [Set custom user agent](#set-custom-user-agent) - [Add an Action](#add-an-action) - [Toggle visibility](#toggle-visibility) - [Disable webhook URL prefix validation](#disable-webhook-url-prefix-validation) - [Enable custom patterns' validation](#enable-custom-patterns-validation) - [Used by](#used-by) - [References](#references) ## Project home See [our GitHub repo](https://github.com/atc0005/go-teams-notify) for the latest code, to file an issue or submit improvements for review and potential inclusion into the project. ## Overview The `goteamsnotify` package (aka, `go-teams-notify`) allows sending messages to a Microsoft Teams channel. These messages can be composed of legacy [`MessageCard`][msgcard-ref] or [`Adaptive Card`][adaptivecard-ref] card formats. Simple messages can be created by specifying only a title and a text body. More complex messages may be composed of multiple sections (`MessageCard`) or containers (`Adaptive Card`), key/value pairs (aka, `Facts`) and externally hosted images. See the [Features](#features) list for more information. **NOTE**: `Adaptive Card` support is currently limited. The goal is to expand this support in future releases to include additional features supported by Microsoft Teams. ## Features - Submit simple or complex messages to Microsoft Teams - simple messages consist of only a title and a text body (one or more strings) - complex messages may consist of multiple sections (`MessageCard`), containers (`Adaptive Card`) key/value pairs (aka, `Facts`) and externally hosted images - Support for Actions, allowing users to take quick actions within Microsoft Teams - [`MessageCard` `Actions`][msgcard-ref-actions] - [`Adaptive Card` `Actions`][adaptivecard-ref-actions] - Support for [user mentions][adaptivecard-user-mentions] (`Adaptive Card` format) - Configurable validation of webhook URLs - enabled by default, attempts to match most common known webhook URL patterns - option to disable validation entirely - option to use custom validation patterns - Configurable validation of `MessageCard` type - default assertion that bare-minimum required fields are present - support for providing a custom validation function to override default validation behavior - Configurable validation of `Adaptive Card` type - default assertion that bare-minimum required fields are present - support for providing a custom validation function to override default validation behavior - Configurable timeouts - Configurable retry support ## Project Status In short: - The upstream project is no longer being actively developed or maintained. - This fork is now a standalone project, accepting contributions, bug reports and feature requests. - Others have also taken an interest in [maintaining their own forks](https://github.com/atc0005/go-teams-notify/network/members) of the original project. See those forks for other ideas/changes that you may find useful. For more details, see the [Releases](https://github.com/atc0005/go-teams-notify/releases) section or our [Changelog](https://github.com/atc0005/go-teams-notify/blob/master/CHANGELOG.md). ## Supported Releases | Series | Example | Status | | -------- | ---------------- | ------------------- | | `v1.x.x` | `v1.3.1` | Not Supported (EOL) | | `v2.x.x` | `v2.6.0` | Supported | | `v3.x.x` | `v3.0.0-alpha.1` | TBD | The current plan is to continue extending the v2 branch with new functionality while retaining backwards compatibility. Any breakage in compatibility for the v2 series is considered a bug (please report it). Long-term, the goal is to learn from missteps made in current releases and correct as many as possible for a future v3 series. ## Changelog See the [`CHANGELOG.md`](CHANGELOG.md) file for the changes associated with each release of this application. Changes that have been merged to `master`, but not yet an official release may also be noted in the file under the `Unreleased` section. A helpful link to the Git commit history since the last official release is also provided for further review. ## Usage ### Add this project as a dependency See the [Examples](#examples) section for more details. ### Webhook URLs #### Expected format Valid webhook URLs for Microsoft Teams use one of several (confirmed) FQDNs patterns: - `outlook.office.com` - `outlook.office365.com` - `*.webhook.office.com` - e.g., `example.webhook.office.com` Using a webhook URL with any of these FQDN patterns appears to give identical results. Here are complete, equivalent example webhook URLs from Microsoft's documentation using the FQDNs above: - - - - note the `webhookb2` sub-URI specific to this FQDN pattern All of these patterns when provided to this library should pass the default validation applied. See the example further down for the option of disabling webhook URL validation entirely. #### How to create a webhook URL (Connector) 1. Open Microsoft Teams 1. Navigate to the channel where you wish to receive incoming messages from this application 1. Select `⋯` next to the channel name and then choose Connectors. 1. Scroll through the list of Connectors to Incoming Webhook, and choose Add. 1. Enter a name for the webhook, upload an image to associate with data from the webhook, and choose Create. 1. Copy the webhook URL to the clipboard and save it. You'll need the webhook URL for sending information to Microsoft Teams. - NOTE: While you can create another easily enough, you should treat this webhook URL as sensitive information as anyone with this unique URL is able to send messages (without authentication) into the associated channel. 1. Choose Done. Credit: [docs.microsoft.com](https://docs.microsoft.com/en-us/microsoftteams/platform/webhooks-and-connectors/how-to/connectors-using#setting-up-a-custom-incoming-webhook), [gist comment from shadabacc3934](https://gist.github.com/chusiang/895f6406fbf9285c58ad0a3ace13d025#gistcomment-3562501) ### Examples #### Basic This is an example of a simple client application which uses this library. - `Adaptive Card` - File: [basic](./examples/adaptivecard/basic/main.go) - `MessageCard` - File: [basic](./examples/messagecard/basic/main.go) #### Specify proxy server This is an example of a simple client application which uses this library to route a generated message through a specified proxy server. - `Adaptive Card` - File: [basic](./examples/adaptivecard/proxy/main.go) - `MessageCard` - File: [basic](./examples/messagecard/proxy/main.go) #### User Mention These examples illustrates the use of one or more user mentions. This feature is not available in the legacy `MessageCard` card format. - File: [user-mention-single](./examples/adaptivecard/user-mention-single/main.go) - File: [user-mention-multiple](./examples/adaptivecard/user-mention-multiple/main.go) - File: [user-mention-verbose](./examples/adaptivecard/user-mention-verbose/main.go) - this example does not necessarily reflect an optimal implementation #### Tables These examples illustrates the use of a [`Table`][adaptivecard-table]. This feature is not available in the legacy `MessageCard` card format. - File: [table-manually-created](./examples/adaptivecard/table-manually-created/main.go) - File: [table-unordered-grid](./examples/adaptivecard/table-unordered-grid/main.go) - File: [table-with-headers](./examples/adaptivecard/table-with-headers/main.go) #### Set custom user agent This example illustrates setting a custom user agent. - `Adaptive Card` - File: [custom-user-agent](./examples/adaptivecard/custom-user-agent/main.go) - `MessageCard` - File: [custom-user-agent](./examples/messagecard/custom-user-agent/main.go) #### Add an Action This example illustrates adding an [`OpenUri`][msgcard-ref-actions] (`MessageCard`) or [`OpenUrl`][adaptivecard-ref-actions] Action. When used, this action triggers opening a URL in a separate browser or application. - `Adaptive Card` - File: [actions](./examples/adaptivecard/actions/main.go) - `MessageCard` - File: [actions](./examples/messagecard/actions/main.go) #### Toggle visibility These examples illustrates using [`ToggleVisibility`][adaptivecard-ref-actions] Actions to control the visibility of various Elements of an `Adaptive Card` message. - File: [toggle-visibility-single-button](./examples/adaptivecard/toggle-visibility-single-button/main.go) - File: [toggle-visibility-multiple-buttons](./examples/adaptivecard/toggle-visibility-multiple-buttons/main.go) - File: [toggle-visibility-column-action](./examples/adaptivecard/toggle-visibility-column-action/main.go) - File: [toggle-visibility-container-action](./examples/adaptivecard/toggle-visibility-container-action/main.go) #### Disable webhook URL prefix validation This example disables the validation webhook URLs, including the validation of known prefixes so that custom/private webhook URL endpoints can be used (e.g., testing purposes). - `Adaptive Card` - File: [disable-validation](./examples/adaptivecard/disable-validation/main.go) - `MessageCard` - File: [disable-validation](./examples/messagecard/disable-validation/main.go) #### Enable custom patterns' validation This example demonstrates how to enable custom validation patterns for webhook URLs. - `Adaptive Card` - File: [custom-validation](./examples/adaptivecard/custom-validation/main.go) - `MessageCard` - File: [custom-validation](./examples/messagecard/custom-validation/main.go) ## Used by See the Known importers lists below for a dynamically updated list of projects using either this library or the original project. - [this fork](https://pkg.go.dev/github.com/atc0005/go-teams-notify/v2?tab=importedby) - [original project](https://pkg.go.dev/github.com/dasrick/go-teams-notify/v2?tab=importedby) ## References - [Original project](https://github.com/dasrick/go-teams-notify) - [Forks of original project](https://github.com/atc0005/go-teams-notify/network/members) - Microsoft Teams - MS Teams - adaptive cards ([de-de](https://docs.microsoft.com/de-de/outlook/actionable-messages/adaptive-card), [en-us](https://docs.microsoft.com/en-us/outlook/actionable-messages/adaptive-card)) - MS Teams - send via connectors ([de-de](https://docs.microsoft.com/de-de/outlook/actionable-messages/send-via-connectors), [en-us](https://docs.microsoft.com/en-us/outlook/actionable-messages/send-via-connectors)) - [adaptivecards.io](https://adaptivecards.io/designer) - [Legacy actionable message card reference][msgcard-ref] [githubtag-image]: https://img.shields.io/github/release/atc0005/go-teams-notify.svg?style=flat [githubtag-url]: https://github.com/atc0005/go-teams-notify [goref-image]: https://pkg.go.dev/badge/github.com/atc0005/go-teams-notify/v2.svg [goref-url]: https://pkg.go.dev/github.com/atc0005/go-teams-notify/v2 [license-image]: https://img.shields.io/github/license/atc0005/go-teams-notify.svg?style=flat [license-url]: https://github.com/atc0005/go-teams-notify/blob/master/LICENSE [msgcard-ref]: [msgcard-ref-actions]: [adaptivecard-ref]: [adaptivecard-ref-actions]: [adaptivecard-user-mentions]: [adaptivecard-table]: