S. Brent FaulknerandSoam Vasani
51c84f3cfc
* Add logger for ruby environment * Update readme and example for ruby logger * ruby-env: log load time for user code
Ruby examples
This directory contains several examples to get you started using Ruby with Fission.
Before running any of these functions, make sure you have created a
ruby Fission environment:
$ fission env create --name ruby --image USER/ruby-env
Method signature
A standard Ruby function has the basic form:
def handler(context)
return [200, {}, []]
end
If the fission context is not required, the function can be simplified:
def handler
[200, {}, ["Hello, world!\n"]]
end
If a simple text response is to be returned, with a status of 200, this can be further simplified.
def handler
"Hello, world!\n"
end
Hello example (hello.rb)
This example is the simplest possible Ruby function, as described above.
To run the example:
$ fission function create --name hello --env ruby --code examples/ruby/hello.rb
$ fission route create --method GET --url /hello --function hello
$ curl http://$FISSION_ROUTER/hello
Hello, world!
Request data example (request_data.rb)
This example shows basic use of the Fission::Context and
Fission::Request objects.
To run the example:
$ fission function create --name request --env ruby --code examples/ruby/request_data.rb
$ fission route create --method GET --url /request/{id} --function request
$ curl http://$FISSION_ROUTER/request/123?key=abc
---ENV---
GATEWAY_INTERFACE=CGI/1.1
PATH_INFO=/
QUERY_STRING=key=abc
REMOTE_ADDR=172.17.0.8
REMOTE_HOST=172.17.0.8
REQUEST_METHOD=GET
REQUEST_URI=http://192.168.64.200:31314/?key=abc
SCRIPT_NAME=
SERVER_NAME=192.168.64.200
SERVER_PORT=31314
SERVER_PROTOCOL=HTTP/1.1
SERVER_SOFTWARE=WEBrick/1.3.1 (Ruby/2.4.1/2017-03-22)
HTTP_HOST=192.168.64.200:31314
HTTP_USER_AGENT=curl/7.52.1
HTTP_ACCEPT=*/*
HTTP_X_FISSION_PARAMS_ID=123
HTTP_X_FORWARDED_FOR=172.17.0.1
HTTP_ACCEPT_ENCODING=gzip
rack.version=1=3
...
HTTP_VERSION=HTTP/1.1
REQUEST_PATH=/
---HEADERS---
Accept: */*
Accept-Encoding: gzip
Host: 192.168.64.200:31314
User-Agent: curl/7.52.1
Version: HTTP/1.1
X-Fission-Params-Id: 123
X-Forwarded-For: 172.17.0.1
---PARAMS---
key=abc
id=123
--BODY--