Appwrite Functions can be executed in several ways. Executions can be invoked through the Appwrite SDK and visiting its REST endpoint. Functions can also be triggered by events and scheduled executions. Here are all the different ways to consume your Appwrite Functions.
Domains
You can execute a function through HTTP requests, using a browser or by sending an HTTP request.
In the Appwrite Console's sidebar, click Functions.
Under Execute access, set the access to Any so that anyone can execute the function. You will use JWTs to authenticate users.
Under the Domains tab, you'll find the generated domain from Appwrite and your custom domains. Learn about adding a custom domain.
https://64d4d22db370ae41a32e.appwrite.global
When requests are made to this domain, whether through a browser or through an HTTP requests, the request information like request URL, request headers, and request body will be passed to the function.
curl -X POST https://64d4d22db370ae41a32e.appwrite.global \
-H "X-Custom-Header: 123" \
-H "x-appwrite-user-jwt: <YOUR_JWT_KEY>" \
-H "Content-Type: application/json" \
-d '{"data":"this is json data"}'
Notice how a x-appwrite-user-jwt header is passed in the request, you will use this to authenticate users. Learn more about JWTs.
This unlocks ability for you to develop custom HTTP endpoints with Appwrite Functions. It also allows accepting incoming webhooks for handling online payments, hosting social platform bots, and much more.
SDK
You can invoke your Appwrite Functions directly from the Appwrite SDKs.
import { Client, Functions } from "appwrite";
const client = new Client();
const functions = new Functions(client);
client
.setEndpoint('https://cloud.appwrite.io/v1') // Your API Endpoint
.setProject('<YOUR_PROJECT_ID>') // Your project ID
;
const promise = functions.createExecution(
'<FUNCTION_ID>', // functionId
'<BODY>', // body (optional)
false, // async (optional)
'<PATH>', // path (optional)
'GET', // method (optional)
{} // headers (optional)
);
promise.then(function (response) {
console.log(response); // Success
}, function (error) {
console.log(error); // Failure
});
const sdk = require('node-appwrite');
// Init SDK
const client = new sdk.Client();
const functions = new sdk.Functions(client);
client
.setEndpoint('https://cloud.appwrite.io/v1') // Your API Endpoint
.setProject('<YOUR_PROJECT_ID>') // Your project ID
;
const promise = functions.createExecution(
'<FUNCTION_ID>', // functionId
'<BODY>', // body (optional)
false, // async (optional)
'<PATH>', // path (optional)
'GET', // method (optional)
{} // headers (optional)
);
promise.then(function (response) {
console.log(response);
}, function (error) {
console.log(error);
});
Console
Another easy way to test a function is directly in the Appwrite Console. You test a function by hitting the Execute now button, which will display with modal below.
You'll be able to mock executions by configuring the path, method, headers, and body.
Events
Changes in Appwrite emit events. You can configure Functions to be executed in response to these events.
In Appwrite Console, navigate to Functions.
Click to open a function you wish to configure.
Under the Settings tab, navigate to Events.
Add one or multiple events as triggers for the function.
Be careful to avoid selecting events that can be caused by the function itself. This can cause the function to trigger its own execution, resulting in infinite recursions.
In these executions, the event that triggered the function will be passed as the header x-appwrite-event to the function. The request.body parameter will contain the event data. Learn more about events.
You can use one of the following events.
Authentication
Name Description teams.* This event triggers on any teams event. Returns Team Object teams.*.create This event triggers when a team is created. Returns Team Object teams.*.delete This event triggers when a team is deleted. Returns Team Object teams.*.memberships.* This event triggers on any team memberships event. Returns Membership Object teams.*.memberships.*.create This event triggers when a membership is created. Returns Membership Object teams.*.memberships.*.delete This event triggers when a membership is deleted. Returns Membership Object teams.*.memberships.*.update This event triggers when a membership is updated. Returns Membership Object teams.*.memberships.*.update.status This event triggers when a team memberships status is updated. Returns Membership Object teams.*.update This event triggers when a team is updated. Returns Team Object teams.*.update.prefs This event triggers when a team's preferences are updated. Returns Team Object users.* This event triggers on any user's event. Returns User Object users.*.create This event triggers when a user is created. Returns User Object users.*.delete This event triggers when a user is deleted. Returns User Object users.*.recovery.* This event triggers on any user's recovery token event. Returns Token Object users.*.recovery.*.create This event triggers when a recovery token for a user is created. Returns Token Object users.*.recovery.*.update This event triggers when a recovery token for a user is validated. Returns Token Object users.*.sessions.* This event triggers on any user's sessions event. Returns Session Object users.*.sessions.*.create This event triggers when a session for a user is created. Returns Session Object users.*.sessions.*.delete This event triggers when a session for a user is deleted. Returns Session Object users.*.update This event triggers when a user is updated. Returns User Object users.*.update.email This event triggers when a user's email address is updated. Returns User Object users.*.update.name This event triggers when a user's name is updated. Returns User Object users.*.update.password This event triggers when a user's password is updated. Returns User Object users.*.update.prefs This event triggers when a user's preferences is updated. Returns User Object users.*.update.status This event triggers when a user's status is updated. Returns User Object users.*.verification.* This event triggers on any user's verification token event. Returns Token Object users.*.verification.*.create This event triggers when a verification token for a user is created. Returns Token Object users.*.verification.*.update This event triggers when a verification token for a user is validated. Returns Token Object Databases
Name Description databases.* This event triggers on any database event. Returns Database Object databases.*.collections.* This event triggers on any collection event. Returns Collection Object databases.*.collections.*.attributes.* This event triggers on any attributes event. Returns Attribute Object databases.*.collections.*.attributes.*.create This event triggers when an attribute is created. Returns Attribute Object databases.*.collections.*.attributes.*.delete This event triggers when an attribute is deleted. Returns Attribute Object databases.*.collections.*.create This event triggers when a collection is created. Returns Collection Object databases.*.collections.*.delete This event triggers when a collection is deleted. Returns Collection Object databases.*.collections.*.documents.* This event triggers on any documents event. Returns Document Object databases.*.collections.*.documents.*.create This event triggers when a document is created. Returns Document Object databases.*.collections.*.documents.*.delete This event triggers when a document is deleted. Returns Document Object databases.*.collections.*.documents.*.update This event triggers when a document is updated. Returns Document Object databases.*.collections.*.indexes.* This event triggers on any indexes event. Returns Index Object databases.*.collections.*.indexes.*.create This event triggers when an index is created. Returns Index Object databases.*.collections.*.indexes.*.delete This event triggers when an index is deleted. Returns Index Object databases.*.collections.*.update This event triggers when a collection is updated. Returns Collection Object databases.*.create This event triggers when a database is created. Returns Database Object databases.*.delete This event triggers when a database is deleted. Returns Database Object databases.*.update This event triggers when a database is updated. Returns Database Object Storage
Name Description buckets.* This event triggers on any buckets event. Returns Bucket Object buckets.*.create This event triggers when a bucket is created. Returns Bucket Object buckets.*.delete This event triggers when a bucket is deleted. Returns Bucket Object buckets.*.files.* This event triggers on any files event. Returns File Object buckets.*.files.*.create This event triggers when a file is created. Returns File Object buckets.*.files.*.delete This event triggers when a file is deleted. Returns File Object buckets.*.files.*.update This event triggers when a file is updated. Returns File Object buckets.*.update This event triggers when a bucket is updated. Returns Bucket Object Functions
Name Description functions.* This event triggers on any functions event. Returns Function Object functions.*.create This event triggers when a function is created. Returns Function Object functions.*.delete This event triggers when a function is deleted. Returns Function Object functions.*.deployments.* This event triggers on any deployments event. Returns Deployment Object functions.*.deployments.*.create This event triggers when a deployment is created. Returns Deployment Object functions.*.deployments.*.delete This event triggers when a deployment is deleted. Returns Deployment Object functions.*.deployments.*.update This event triggers when a deployment is updated. Returns Deployment Object functions.*.executions.* This event triggers on any executions event. Returns Execution Object functions.*.executions.*.create This event triggers when an execution is created. Returns Execution Object functions.*.executions.*.delete This event triggers when an execution is deleted. Returns Execution Object functions.*.executions.*.update This event triggers when an execution is updated. Returns Execution Object functions.*.update This event triggers when a function is updated. Returns Function Object Messaging
Name Description providers.* This event triggers on any providers event. Returns Provider Object providers.*.create This event triggers when a provider is created. Returns Provider Object providers.*.delete This event triggers when a provider is deleted. Returns Provider Object providers.*.update This event triggers when a provider is updated. Returns Provider Object topics.* This event triggers on any topic event. Returns Topic Object topics.*.create This event triggers when a topic is created. Returns Topic Object topics.*.delete This event triggers when a topic is deleted. Returns Topic Object topics.*.update This event triggers when a topic is updated. Returns Topic Object topics.*.subscribers.*.create This event triggers when a subscriber to a topic is created. Returns Topic Object topics.*.subscribers.*.delete This event triggers when a subscriber to a topic is deleted. Returns Topic Object messages.* This event triggers on any message event. Returns Message Object messages.*.create This event triggers when a message is created. Returns Message Object messages.*.delete This event triggers when a message is deleted. Returns Message Object messages.*.update This event triggers when a message is updated. Returns Message Object
Schedule
Appwrite supports scheduled function executions. You can schedule executions using cron expressions in the settings of your function. Cron supports recurring executions as frequently as every minute.
Here are some cron expressions for common intervals:
| Cron Expression | Schedule |
| */15 * * * * | Every 15 minutes |
| 0 * * * * | Every Hour |
| 0 0 * * * | Every day at 00:00 |
| 0 0 * * 1 | Every Monday at 00:00 |
Permissions
Appwrite Functions can be executed using Client or Server SDKs. Client SDKs must be authenticated with an account that has been granted execution permissions on the function's settings page. Server SDKs require an API key with the correct scopes.
If your function has a generated or custom domain, executions are not authenticated. Anyone visiting the configured domains will be considered a guest, so make sure to give Any execute permission in order for domain executions to work. If you need to enforce permissions for functions with a domain, use authentication methods like JWT.