Use the Webhook plugin to notify services via Webhook when a build completes.
You will need to supply Drone with outgoing Webhook URLs.

The following parameters are used to configure outgoing Webhooks:

* `urls` - JSON payloads are sent to each URL listed here
* `method` - HTTP request method. Defaults to `POST`
* `header` - HTTP request header map

The following is a sample Webhook configuration in your .drone.yml file:

```yaml
notify:
  webhook:
    urls:
      - https://your.webhook/...
      - https://your.other.webhook/...
    header:
      Authorization: pa55word
```

The following is an example Webhook payload (whitespace added):

```json
{
    "build": {
        "author": "johnsmith",
        "author_avatar": "",
        "author_email": "john.smith@gmail.com",
        "branch": "master",
        "commit": "9f2849d5",
        "created_at": 0,
        "enqueued_at": 0,
        "event": "",
        "finished_at": 1421029813,
        "link_url": "",
        "message": "Update the Readme",
        "number": 22,
        "ref": "",
        "refspec": "",
        "remote": "",
        "started_at": 1421029603,
        "status": "success",
        "timestamp": 0,
        "title": ""
    },
    "repo": {
        "allow_deploys": false,
        "allow_pr": false,
        "allow_push": false,
        "allow_tags": false,
        "avatar_url": "",
        "clone_url": "",
        "default_branch": "",
        "full_name": "foo/bar",
        "link_url": "",
        "name": "bar",
        "owner": "foo",
        "private": false,
        "timeout": 0,
        "trusted": false
    }
}
```

## Custom Body

In some cases you may want to submit a custom payload in the body of your hook. For the use case we expose the following additional parameters:

* `template` - Handlebars template to create a custom payload body. See [docs](http://handlebarsjs.com/)
* `content_type` - HTTP request content type

Example configuration that generate a custom Yaml payload:

```yaml
notify:
  webhook:
    urls:
      - https://your.webhook/...
      - https://your.other.webhook/...
    content_type: application/yaml
    template: >
      repo: {{repo.full_name}}
      build: {{build.number}}
      commit: {{build.commit}}
```

## Basic Authentication

>It is important to note that with HTTP Basic Authentication the provided username and password are not encrypted.

In some cases your webhook may need to authenticate with another service.  You can set the basic `Authentication` header with a username and password.  For these use cases we expose the following additional parameters:

* `auth` - Sets the request's `Authorization` header to use HTTP Basic Authentication with the provided username and password below.
  * `username` - The username as a string.
  * `password` - The password as a string.

Example configuration to include HTTP Basic Authentication:

```yaml
notify:
  webhook:
    method: POST
    auth:
      username: $$USERNAME
      password: $$PASSWORD
    urls:
      - https://tower.example.com/...
```

## Debugging Webhooks

>If you have private variables that are encrypted and hidden in `.drone.sec`, remember that the `debug` flag may print out those sensitive values.  Please use `dubug: true` wisely.

In some cases complicated webhooks may need debugging to ensure `urls`, `template`, `auth` and more a properly configured. For these use cases we expose the following `debug` parameter:

* `debug` - If `debug: true` it will print out each URL request and response information.

Example configuration to include the `debug` parameter:

```yaml
notify:
  webhook:
    debug: true
    method: POST
    auth:
      username: $$TOWER_USER
      password: $$TOWER_PASS
    urls:
      - http://tower.example.com/api/v1/job_templates/44/launch/
      - http://tower.example.com/api/v1/job_templates/45/launch/
      content_type: application/json
      template: '{"name": "project.deploy","extra_vars": "{\"env\": \"dev\",\"git_branch\": \"{{ build.branch }}\",\"hipchat_token\": \"$$HIPCHAT_TOKEN\"}"}'
```

Example of a debug print result:

```yaml
[debug] Webhook 1
  URL: http://tower.example.com/api/v1/job_templates/44/launch/
  METHOD: POST
  HEADERS: map[Content-Type:[application/json] Authorization:[Basic EMfNB3fakB8EMfNB3fakB8==]]
  REQUEST BODY: {"name": "project.deploy","extra_vars": "{\"env\": \"dev\",\"git_branch\": \"develop\",\"hipchat_token\": \"h1pchatT0k3n\"}"}
  RESPONSE STATUS: 202 ACCEPTED
  RESPONSE BODY: {"job": 236}

[debug] Webhook 2
  URL: http://tower.example.com/api/v1/job_templates/45/launch/
  METHOD: POST
  HEADERS: map[Content-Type:[application/json] Authorization:[Basic EMfNB3fakB8EMfNB3fakB8==]]
  REQUEST BODY: {"name": "project.deploy","extra_vars": "{\"env\": \"dev\",\"git_branch\": \"develop\",\"hipchat_token\": \"h1pchatT0k3n\"}"}
  RESPONSE STATUS: 202 ACCEPTED
  RESPONSE BODY: {"job": 406}
```