- cloneする
$ git clone [email protected]:yfujii01/serverless-python-sample.git
- Setupする
| Step | Command | Description |
|---|---|---|
| 1. | npm install -g serverless |
Install Serverless CLI |
| 2. | npm install |
Install Serverless dependencies |
| 3. | Set up an AWS account with admin permissions | Documentation |
- fishでvirtualenvを使う
以下を参考にインストールする
https://github.com/adambrenecki/virtualfish
環境を作る
| Step | Command | Description |
|---|---|---|
| 1. | vf new posts |
Create virtual environment |
| 2. | pip install -r requirements.txt |
Install dependencies |
- テストする
$ python test.py
test.py:22: DeprecationWarning: Please use assertEqual instead.
self.assertEquals(200, res['statusCode'])
..
----------------------------------------------------------------------
Ran 2 tests in 0.437s
OK
- serverless frameworkで動作確認する1
$ sls invoke local -f listPosts
DEBUG:root:calling https://jsonplaceholder.typicode.com/posts
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): jsonplaceholder.typicode.com:443
DEBUG:urllib3.connectionpool:https://jsonplaceholder.typicode.com:443 "GET /posts HTTP/1.1" 200 None
{
"statusCode": 200,
"body": "[\n {\n \"userId\": 1
:
:
}
- serverless frameworkで動作確認する2
$ sls invoke local -f getPost -d '{"pathParameters":{"id":"1"}}'
DEBUG:root:calling https://jsonplaceholder.typicode.com/posts/1
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): jsonplaceholder.typicode.com:443
DEBUG:urllib3.connectionpool:https://jsonplaceholder.typicode.com:443 "GET /posts/1 HTTP/1.1" 200 None
{
"statusCode": 200,
"body": "{\n \"userId\": 1,\n \"id\": 1,\n \"title\": \"sunt aut facere repellat provident occaecati excepturi optio reprehenderit\",\n \"body\": \"quia et suscipit\\nsuscipit recusandae consequuntur expedita et cum\\nreprehenderit molestiae ut ut quas totam\\nnostrum rerum est autem sunt rem eveniet architecto\"\n}"
}
A simple serverless python sample. The service is running on AWS Lambda using Serverless Framework.
The service has a dependency on external package (requests) and it exposes 2 REST API endpoints:
| Endpoint | Description |
|---|---|
GET /posts |
Retrieves a list of posts |
GET /posts/{id} |
Retrieves a specific post (e.g. GET /posts/5) |
| Step | Command | Description |
|---|---|---|
| 1. | mkvirtualenv posts |
Create virtual environment (using virtualenvwrapper) |
| 2. | pip install -r requirements.txt |
Install dependencies |
sls deploy
curl <host>/posts
curl <host>/posts/5
Just use it on anything:
sls help
or
sls <command> --help
Deploy only one function:
sls deploy function -f <function-name>
Tail the logs of a function:
sls logs -f <function-name> -t
Information about the service (stage, region, endpoints, functions):
sls info
Run a specific function with a provided input and get the logs
sls invoke -f <function-name> -p event.json -l
JSONPlaceholder by @typicode is used for the posts backend.