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Development_Apprise_Details

Chris Caron edited this page Dec 2, 2021 · 6 revisions

Apprise details()

{
    "version": "X.Y.Z",
    "asset": { ... },
    "schemas": [ ... ],
}

A call to the Apprise().details() object returns a list of supported notification services available. It's syntax can be broken down into 3 major categories:

  • version: A string representation of the current version of the Apprise library.
  • asset: Some developers will provide their own Apprise Asset Object tailored to their own system. This is merely a view into the current loaded configuration.
  • schemas: This is a identifying all of the supported notification services and a very high level point of reference to them such as their official documentation, the apprise documentation, and the name of the service itself.

A simple way to look at all of the data available to you can be done like so:

import apprise
from json import dumps

# Our Apprise Object
a = apprise.Apprise()

# Our details we've always used in the past but now provide much more
# detail. The below shows how you can simply view them for yourself as
# this is all explained below
print(dumps(a.details(), indent=2)

Version

This is just a simple string that you can use as a reference to help identify what version of Apprise is loaded. The version identified here can have a direct impact on what notification services have been made available to you and additions to this very API.

While there is no intent to change the API at this time, the API IS subject to potentially be structured differently or could include potential breaking changes IF the major changes. Hence given a version of X.Y.Z, X would be identified as the major.

In all other circumstances, content may be added to the API, but NEVER removed or changed in such a way it would break systems referencing it.

Asset

The Apprise Asset Object during the initialization of Apprise can be altered to conform to different products. The Asset object really just defines some static globals that are referenced through-out the entire life of the Apprise object itself.

This section of the JSON response simply allows one to review what was set/specified. By default, the output might look like this:

    "asset": {
        "app_id": "Apprise",
        "app_desc": "Apprise Notifications",

        "theme": "default",
        "default_extension": ".png",

        "image_path_mask": "https://github.com/caronc/apprise/raw/master/apprise/assets/themes/{THEME}/apprise-{TYPE}-{XY}{EXTENSION}",
        "image_url_logo": "https://github.com/caronc/apprise/raw/master/apprise/assets/themes/{THEME}/apprise-logo.png",
        "image_url_mask": "https://github.com/caronc/apprise/raw/master/apprise/assets/themes/{THEME}/apprise-{TYPE}-{XY}{EXTENSION}"
    },

Schemas

Here is where all of the supported notification services are identified and all of the details you need to know about in order to use one.

Below is an example of what the output would look like:

    "schemas": {
            "service_name": "Boxcar",
            "service_url": "https://boxcar.io/",

            "setup_url": "https://github.com/caronc/apprise/wiki/Notify_boxcar",
            "protocols": null,
            "secure_protocols": [
                "boxcar"
            ],
            # Only available if show_disabled=True (otherwise ONLY
            # enabled plugins are returned in this response)
            "enabled": true,
            # Details are discussed a bit lower since there is a lot of information
            # here.
            "details": {...},
            # Requirements are only shown if show_requirements=True
            "requirements": {...}
         },
        {
            "service_name": "Discord",
            "service_url": "https://discordapp.com/",

            "setup_url": "https://github.com/caronc/apprise/wiki/Notify_discored",
            "protocols": null,
            "secure_protocols": [
                "discord"
            ],
            # Only available if show_disabled=True (otherwise ONLY
            # enabled plugins are returned in this response)
            "enabled": true,
            # Details are discussed a bit lower since there is a lot of information
            # here.
            "details": {...},
            # Requirements are only shown if show_requirements=True
            "requirements": {...}
        },
  • service_name gives you a general description of the notification service itself.
  • service_url provides information to the official source of the notification service.
  • setup_url provides the URL you can reference to see examples on how to construct your Apprise URL.
  • protocols identifies the accepted schema for non-encrypted references to the service. It is not uncommon to have this field set to null simply stating that there simply isn't a non-encrypted form of using this service.
  • secure_protocols identifies the accepted schema for encrypted references to the service.
  • enabled is set to either True or False if the service/plugin is available (based on administrative/platform/environment dependencies). This field is ONLY present if you specified show_disabled=True on your call to details()
  • requirements provides details on what is required for a plugin to be functional (With respect to the platform/environment. This field is ONLY present if you specified show_requirements=True on your call to details()
  • details goes into a much more granular view of the protocol. This is covered in the next section.

All services will have AT LEAST one protocol/schema you can use to access it by.

The details function can also take a few keyword arguments that generate a little more overhead, but can additionally provide you information on services Apprise supports that you do not have access to (due to your Platform/Environment).

import apprise
from json import dumps

# Our Apprise Object
a = apprise.Apprise()

# Get our details and include all other services available to us as well:
details = apprise.details(show_disabled=True)

The payload from the above call will look almost identical as it did except that it will additionally include a variable called enabled which is set to either True or False. One difference is that the call without this flag set ONLY returns enabled plugins.

Details

This identifies a much more granular view of the schema object itself. There is enough details in here on every single supported notification service that an end user could ask for simple to read arguments like token, password, target_users and dynamically construct the URL on their own. You can also just feed these tokens into the Apprise Notification Object directly for those using this product at a very low level.

This section was the newest addition to what is provided. There are 4 core sections within the details part of the of the JSON output:

  1. templates: Identifies the URL structure associated with the specific service, eg:
    {
      "service_name": "Discord", 
      ...
      "details": {
        "templates": [
          "{schema}://{webhook_id}/{webhook_token}", 
          "{schema}://{botname}@{webhook_id}/{webhook_token}"
        ]
      ...
     }
...
  1. tokens: This provides the full mappings of each entry identified in the templates (identified above). It gives some data to easily build a web page and/or application from by allowing developers to dynamically generate the Apprise URLs.
    It also provides a map_to argument which maps the token directly to the Apprise Notification Class (should you want to manually initialize it this way instead of via a URL). Some tokens can be combined into one single token (as a list). The map_to argument additionally provides this connection as well. This is discussed more below.
    {
      "service_name": "Discord", 
      ...
      "details": {
        ...
        "tokens": {
          "webhook_token": {
            "map_to": "webhook_token", 
            "required": true, 
            "type": "string", 
            "name": "Webhook Token", 
            "private": true
          }, 
          "schema": {
            "name": "Schema", 
            "default": "discord", 
            "required": true, 
            "private": false, 
            "map_to": "schema", 
            "values": [
              "discord"
            ], 
            "type": "choice:string"
          }, 
          "botname": {
            "type": "string", 
            "required": false, 
            "map_to": "user", 
            "name": "Bot Name", 
            "private": false
          }, 
          "webhook_id": {
            "map_to": "webhook_id", 
            "required": true, 
            "type": "string", 
            "name": "Webhook ID", 
            "private": true
          }
        }
      ...
     }
...
  1. args: This identifies any URL arguments you want to define. The arguments reside after the URL is defined, such as http://path/?arg=val&arg2=val2. URL arguments are never mandatory for a URL's construction with Apprise and merely provide extended options. A continued example (with respect to Discord) would look like this:
...
    {
      "service_name": "Discord", 
      ...
      "details": {
        ...
        "args": {
          "footer": {
            "name": "Display Footer", 
            "default": false, 
            "required": false, 
            "private": false, 
            "map_to": "footer", 
            "type": "bool"
          }, 
          "tts": {
            "name": "Text To Speech", 
            "default": false, 
            "required": false, 
            "private": false, 
            "map_to": "tts", 
            "type": "bool"
          }, 
          "format": {
            "name": "Notify Format", 
            "default": "text", 
            "type": "choice:string", 
            "required": false, 
            "private": false, 
            "map_to": "format", 
            "values": [
              "text", 
              "html", 
              "markdown"
            ]
          }, 
          "footer_logo": {
            "name": "Footer Logo", 
            "default": true, 
            "required": false, 
            "private": false, 
            "map_to": "footer_logo", 
            "type": "bool"
          }, 
          "avatar": {
            "name": "Avatar Image", 
            "default": true, 
            "required": false, 
            "private": false, 
            "map_to": "avatar", 
            "type": "bool"
          }, 
          "overflow": {
            "name": "Overflow Mode", 
            "default": "upstream", 
            "type": "choice:string", 
            "required": false, 
            "private": false, 
            "map_to": "overflow", 
            "values": [
              "upstream", 
              "truncate", 
              "split"
            ]
          }
        }
      ...
     }
...
  1. kwargs: Simiar to args, these are never required, the subtle difference between args and kwargs is with args the key names are already defined. with kwargs the user defines both the key and it's value when building the ?+key=value&-key2=value. Custom kwargs in Apprise are ALWAYS prefixed with a plus (+) or minus (-*) symbol; for this reason there will ALWAYS be a prefix field that identities which symbol is applicable. There are very few notification services at this time that use this, but to support them, you'll find them here. JSON and XML URLs for example allow one to set the HTTP Headers passed to the server they POST to.
...
    {
      "service_name": "JSON", 
      ...
      "details": {
        ...
        "kwargs": {
          "headers": {
            "name": "HTTP Header", 
            "required": false, 
            "private": false, 
            "prefix": "+", 
            "map_to": "headers", 
            "type": "string"
          }
        }
      ...
     }
...

Argument Breakdown

Here I'll break down the arguments a bit more and what they mean:

Argument Values Description
type int, float, bool, string
list:int, list:float, list:string
choice:int, choice:float, choice:string
The type field will always be present except if an alias_of exists. It will allow you to determine what the expected object should be. Many of the additional arguments that can reside in this new section will be completely conditional on the type.
name string This is a fully translatable string. That said, at this time this pull request only supports English; but opens the door for others who want to translate this into other languages. The name field will always be present except if an alias_of exists.
values list() The values field ONLY exists if the type was a choice: or bool (choice:bool is redudant). This provides the actual choices that are explicitly allowed.
required bool This is only set if you can be rest assured the plugin will fail to initialize if this value isn't set.
default some value To simplify a users life; sometimes it's easier to pre-provide default values they can use.
private bool This is set to True if the argument contains something that would otherwise be private to the user making the notification. This could be something such as a password, or a private token, an authentication key, etc. If you're building a website, it might be kind of you to place the password input type on these.
min int / float When the type is of int or float this would identify the minimum value that would be accepted. The min will not always be present if there are no restrictions set. This is just a field that the developer can use to help with some early verification.
max int / float When the type is of int or float this would identify the maximum value that would be accepted. The max will not always be present if there are no restrictions set. This is just a field that the developer can use to help with some early verification.
delim list If we are dealing with a list: type, then we are accepting more then one element. For that we need a way to separate one element from another. This identifies one or more entries that are acceptable as delimiters. The delim argument will only be present if the type is of list:.
regex (regex, options) If we are dealing with a string type (this includes a list:string), then we provide a regular expression the developer can optionally use to validate the strings specified. The result is always returned as a tuple where index zero (0) is the actual regex string and index one (1) is the regex options as a string ('i' = case insensitive, etc). It's important to note that not all string entries have this entry. So you shouldn't depend on it's presence.
prefix string Some arguments are identified by apprise based on a prefix value placed in front of them. For example with slack, the at (@) symbol identifies a user where as pound/hashtag (#) identifies a channel. If a prefix is identified, it usually means that the attribute has a map_to argument causing to map to a shared list. It's important to make sure the prefix exists when constructing the URL and/or passing the argument directly into the Apprise Plugin for it to be effective.
alias_of string If you see this, then you won't even see a type block. In fact alias_of is a lone wolf and when it exists it merely points to a token entry (never another arg) where you can get the details of this item from. Think of it as a symbolic-link; to make apprise easy to work with, some Notification services have more than one way to provide the same information. apprise_of prevents ambiguity of defining the same thing twice.
map_to string This has one core meaning and one helping one. First off, it's primary reason for existence is for those people who don't want to build URLs from the templates and want to directly instantiate their own instance of the Notification service manually (using the class object). map_to always points to the function argument name.
The other use of this is in cases where the prefix is used. You should always check the token table to see if the map_to can be mapped back to an element already identified here.

Using The Tokens

So, let's presume you built your website and/or application and provided all of these options to the user. They provided you with all of these options/tokens populated with their data and now you need to send a notification for them.

No problem, the Apprise.add() function now supports dictionaries of URL arguments (not just the URL strings themselves).

import apprise

# First you'll get your details which will provide your app with all the information you need
# to get the data you need from the user with any supported notification service.
a = apprise.Apprise()
apprise_details = a.details()

# work your magic and get the user to populate the tokens associated with the
# notification services
results = your_code_that_gets_input_from_user(apprise_details)

# Presuming you have all of your tokens now from one of the notification services:
# for example, for email you might have:
# results = {
#   'schema': 'mailto',
#   'host': 'google.com',
#   'user': 'myuser',
#   'password': 'mypassword',
# }
#
# Simply add your results:
a.add(results)

# Done!

Note: The dictionary keys that you pass into Apprise.add() must be based on the map_to directive.

Internationalization

Full I18n support is built into this pull request allowing the name directive to be translated into other languages (making the details() support people who've built their website around multi-language support).

The language is automatically translated on the fly to each call to details(). At this time only English is supported, but I welcome anyone wishing to help with translations into other languages.

Here is how it works:

import apprise

# Our Apprise Object
a = apprise.Apprise()

# Get our details in the local language detected from the OS
# apprise is installed on
details = a.details()

# Get our details in English
details = a.details('en')

# Get our details in French
# Note: While this is possible, i need the translations still
details = a.details('fr')

Here is how you can help if you want to. Let's say you want to help translate apprise into another language:

# First checkout your own copy of apprise and change into the directory
# it downloaded to

# Next prepare your language (the below prepares the French - fr)
python setup.py init_catalog -l fr

# Now have a look at a new file that appeared; with respect to the
# above command it will be:  apprise/i18n/fr/LC_MESSAGES/apprise.po
# Use your favorite editor to edit this file:
code apprise/i18n/fr/LC_MESSAGES/apprise.po
# or #
gvim apprise/i18n/fr/LC_MESSAGES/apprise.po
# or #
notpad apprise/i18n/fr/LC_MESSAGES/apprise.po
# or #
emacs apprise/i18n/fr/LC_MESSAGES/apprise.po
# you get the idea...
# add your translations and pass them back; it's that easy
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