AgentSkillsCN

appwrite-python

Appwrite Python SDK 技能。适用于使用 Appwrite 构建服务器端 Python 应用程序时使用,包括 Django、Flask 和 FastAPI 集成。涵盖用户管理、数据库/表 CRUD 操作、文件存储,以及通过 API 密钥实现的函数调用。

SKILL.md
--- frontmatter
name: appwrite-python
description: Appwrite Python SDK skill. Use when building server-side Python applications with Appwrite, including Django, Flask, and FastAPI integrations. Covers user management, database/table CRUD, file storage, and functions via API keys.

Appwrite Python SDK

Installation

bash
pip install appwrite

Setting Up the Client

python
from appwrite.client import Client
from appwrite.id import ID
from appwrite.query import Query
from appwrite.services.users import Users
from appwrite.services.tablesdb import TablesDB
from appwrite.services.storage import Storage
from appwrite.services.functions import Functions
from appwrite.enums.o_auth_provider import OAuthProvider

import os

client = (Client()
    .set_endpoint('https://<REGION>.cloud.appwrite.io/v1')
    .set_project(os.environ['APPWRITE_PROJECT_ID'])
    .set_key(os.environ['APPWRITE_API_KEY']))

Code Examples

User Management

python
users = Users(client)

# Create user
user = users.create(ID.unique(), 'user@example.com', None, 'password123', 'User Name')

# List users
result = users.list([Query.limit(25)])

# Get user
fetched = users.get('[USER_ID]')

# Delete user
users.delete('[USER_ID]')

Database Operations

Note: Use TablesDB (not the deprecated Databases class) for all new code. Only use Databases if the existing codebase already relies on it or the user explicitly requests it.

python
tables_db = TablesDB(client)

# Create database
db = tables_db.create(ID.unique(), 'My Database')

# Create row
doc = tables_db.create_row('[DATABASE_ID]', '[TABLE_ID]', ID.unique(), {
    'title': 'Hello World'
})

# Query rows
results = tables_db.list_rows('[DATABASE_ID]', '[TABLE_ID]', [
    Query.equal('title', 'Hello World'),
    Query.limit(10)
])

# Get row
row = tables_db.get_row('[DATABASE_ID]', '[TABLE_ID]', '[ROW_ID]')

# Update row
tables_db.update_row('[DATABASE_ID]', '[TABLE_ID]', '[ROW_ID]', {
    'title': 'Updated'
})

# Delete row
tables_db.delete_row('[DATABASE_ID]', '[TABLE_ID]', '[ROW_ID]')

Query Methods

python
# Filtering
Query.equal('field', 'value')             # == (or pass list for IN)
Query.not_equal('field', 'value')         # !=
Query.less_than('field', 100)             # <
Query.less_than_equal('field', 100)       # <=
Query.greater_than('field', 100)          # >
Query.greater_than_equal('field', 100)    # >=
Query.between('field', 1, 100)            # 1 <= field <= 100
Query.is_null('field')                    # is null
Query.is_not_null('field')                # is not null
Query.starts_with('field', 'prefix')      # starts with
Query.ends_with('field', 'suffix')        # ends with
Query.contains('field', 'sub')            # contains (string or array)
Query.search('field', 'keywords')         # full-text search (requires index)

# Sorting
Query.order_asc('field')
Query.order_desc('field')

# Pagination
Query.limit(25)                           # max rows (default 25, max 100)
Query.offset(0)                           # skip N rows
Query.cursor_after('[ROW_ID]')            # cursor pagination (preferred)
Query.cursor_before('[ROW_ID]')

# Selection & Logic
Query.select(['field1', 'field2'])        # return only specified fields
Query.or_queries([Query.equal('a', 1), Query.equal('b', 2)])   # OR
Query.and_queries([Query.greater_than('age', 18), Query.less_than('age', 65)])  # AND (default)

File Storage

python
from appwrite.input_file import InputFile

storage = Storage(client)

# Upload file
file = storage.create_file('[BUCKET_ID]', ID.unique(), InputFile.from_path('/path/to/file.png'))

# List files
files = storage.list_files('[BUCKET_ID]')

# Delete file
storage.delete_file('[BUCKET_ID]', '[FILE_ID]')

InputFile Factory Methods

python
from appwrite.input_file import InputFile

InputFile.from_path('/path/to/file.png')             # from filesystem path
InputFile.from_bytes(byte_data, 'file.png')          # from bytes
InputFile.from_string('Hello world', 'hello.txt')    # from string content

Teams

python
from appwrite.services.teams import Teams

teams = Teams(client)

# Create team
team = teams.create(ID.unique(), 'Engineering')

# List teams
team_list = teams.list()

# Create membership (invite user by email)
membership = teams.create_membership('[TEAM_ID]', roles=['editor'], email='user@example.com')

# List memberships
members = teams.list_memberships('[TEAM_ID]')

# Update membership roles
teams.update_membership('[TEAM_ID]', '[MEMBERSHIP_ID]', roles=['admin'])

# Delete team
teams.delete('[TEAM_ID]')

Role-based access: Use Role.team('[TEAM_ID]') for all team members or Role.team('[TEAM_ID]', 'editor') for a specific team role when setting permissions.

Serverless Functions

python
functions = Functions(client)

# Execute function
execution = functions.create_execution('[FUNCTION_ID]', body='{"key": "value"}')

# List executions
executions = functions.list_executions('[FUNCTION_ID]')

Writing a Function Handler (Python runtime)

python
# src/main.py — Appwrite Function entry point
def main(context):
    # context.req — request object
    #   .body        — raw request body (string)
    #   .body_json   — parsed JSON body (dict, or None if not JSON)
    #   .headers     — request headers (dict)
    #   .method      — HTTP method (GET, POST, etc.)
    #   .path        — URL path
    #   .query       — parsed query parameters (dict)
    #   .query_string — raw query string

    context.log('Processing: ' + context.req.method + ' ' + context.req.path)

    if context.req.method == 'GET':
        return context.res.json({'message': 'Hello from Appwrite Function!'})

    data = context.req.body_json or {}
    if 'name' not in data:
        context.error('Missing name field')
        return context.res.json({'error': 'Name is required'}, 400)

    # Response methods
    return context.res.json({'success': True})                    # JSON response
    # return context.res.text('Hello')                           # plain text
    # return context.res.empty()                                 # 204 No Content
    # return context.res.redirect('https://example.com')         # 302 Redirect
    # return context.res.send('data', 200, {'X-Custom': '1'})   # custom response

Server-Side Rendering (SSR) Authentication

SSR apps (Flask, Django, FastAPI, etc.) use the server SDK to handle auth. You need two clients:

  • Admin client — uses an API key, creates sessions, bypasses rate limits (reusable singleton)
  • Session client — uses a session cookie, acts on behalf of a user (create per-request, never share)
python
from appwrite.client import Client
from appwrite.services.account import Account
from flask import request, jsonify, make_response, redirect

# Admin client (reusable)
admin_client = (Client()
    .set_endpoint('https://<REGION>.cloud.appwrite.io/v1')
    .set_project('[PROJECT_ID]')
    .set_key(os.environ['APPWRITE_API_KEY']))

# Session client (create per-request)
session_client = (Client()
    .set_endpoint('https://<REGION>.cloud.appwrite.io/v1')
    .set_project('[PROJECT_ID]'))

session = request.cookies.get('a_session_[PROJECT_ID]')
if session:
    session_client.set_session(session)

Email/Password Login

python
@app.post('/login')
def login():
    account = Account(admin_client)
    session = account.create_email_password_session(
        request.json['email'], request.json['password']
    )

    # Cookie name must be a_session_<PROJECT_ID>
    resp = make_response(jsonify({'success': True}))
    resp.set_cookie('a_session_[PROJECT_ID]', session['secret'],
                    httponly=True, secure=True, samesite='Strict',
                    expires=session['expire'], path='/')
    return resp

Authenticated Requests

python
@app.get('/user')
def get_user():
    session = request.cookies.get('a_session_[PROJECT_ID]')
    if not session:
        return jsonify({'error': 'Unauthorized'}), 401

    session_client = (Client()
        .set_endpoint('https://<REGION>.cloud.appwrite.io/v1')
        .set_project('[PROJECT_ID]')
        .set_session(session))

    account = Account(session_client)
    return jsonify(account.get())

OAuth2 SSR Flow

python
# Step 1: Redirect to OAuth provider
@app.get('/oauth')
def oauth():
    account = Account(admin_client)
    redirect_url = account.create_o_auth2_token(
        OAuthProvider.Github,
        'https://example.com/oauth/success',
        'https://example.com/oauth/failure',
    )
    return redirect(redirect_url)

# Step 2: Handle callback — exchange token for session
@app.get('/oauth/success')
def oauth_success():
    account = Account(admin_client)
    session = account.create_session(request.args['userId'], request.args['secret'])

    resp = make_response(jsonify({'success': True}))
    resp.set_cookie('a_session_[PROJECT_ID]', session['secret'],
                    httponly=True, secure=True, samesite='Strict',
                    expires=session['expire'], path='/')
    return resp

Cookie security: Always use httponly, secure, and samesite='Strict' to prevent XSS. The cookie name must be a_session_<PROJECT_ID>.

Forwarding user agent: Call session_client.set_forwarded_user_agent(request.headers.get('user-agent')) to record the end-user's browser info for debugging and security.

Error Handling

python
from appwrite.exception import AppwriteException

try:
    row = tables_db.get_row('[DATABASE_ID]', '[TABLE_ID]', '[ROW_ID]')
except AppwriteException as e:
    print(e.message)    # human-readable error message
    print(e.code)       # HTTP status code (int)
    print(e.type)       # Appwrite error type string (e.g. 'document_not_found')
    print(e.response)   # full response body (dict)

Common error codes:

CodeMeaning
401Unauthorized — missing or invalid session/API key
403Forbidden — insufficient permissions for this action
404Not found — resource does not exist
409Conflict — duplicate ID or unique constraint violation
429Rate limited — too many requests, retry after backoff

Permissions & Roles (Critical)

Appwrite uses permission strings to control access to resources. Each permission pairs an action (read, update, delete, create, or write which grants create + update + delete) with a role target. By default, no user has access unless permissions are explicitly set at the document/file level or inherited from the collection/bucket settings. Permissions are arrays of strings built with the Permission and Role helpers.

python
from appwrite.permission import Permission
from appwrite.role import Role

Database Row with Permissions

python
doc = tables_db.create_row('[DATABASE_ID]', '[TABLE_ID]', ID.unique(), {
    'title': 'Hello World'
}, [
    Permission.read(Role.user('[USER_ID]')),     # specific user can read
    Permission.update(Role.user('[USER_ID]')),   # specific user can update
    Permission.read(Role.team('[TEAM_ID]')),     # all team members can read
    Permission.read(Role.any()),                 # anyone (including guests) can read
])

File Upload with Permissions

python
file = storage.create_file('[BUCKET_ID]', ID.unique(), InputFile.from_path('/path/to/file.png'), [
    Permission.read(Role.any()),
    Permission.update(Role.user('[USER_ID]')),
    Permission.delete(Role.user('[USER_ID]')),
])

When to set permissions: Set document/file-level permissions when you need per-resource access control. If all documents in a collection share the same rules, configure permissions at the collection/bucket level and leave document permissions empty.

Common mistakes:

  • Forgetting permissions — the resource becomes inaccessible to all users (including the creator)
  • Role.any() with write/update/delete — allows any user, including unauthenticated guests, to modify or remove the resource
  • Permission.read(Role.any()) on sensitive data — makes the resource publicly readable