Recipes Web - tsafin/tarantool GitHub Wiki
http_client = require('http.client')
json = require('json')
r = http_client.get('http://api.openweathermap.org/data/2.5/weather?q=Oakland,us')
if r.status ~= 200 then
print('Failed to get weather forecast ', r.reason)
return
end
data = json.decode(r.body)
print('Oakland wind speed: ', data.wind.speed)This snipplet requires http rock.
http_client = require('http.client')
json = require('json')
data = json.encode({ Key = 'Value'})
headers = { Token = 'xxxx', ['X-Secret-Value'] = 42 }
r = http_client.post('http://localhost:8081', data, { headers = headers})
if r.status == 200 then
print 'Success'
endThis snipplet requires http rock.
Use built-in :func:`uri.decode`:
tarantool> uri = require('uri')
tarantool> uri.parse("scheme://login:password@host:service:/path1/path2/path3?q1=v1&q2=v2#fragment")
---
- password: password
path: /path1/path2/path3
scheme: scheme
login: login
query: q1=v1&q2=v2
service: service
fragment: fragment
host: host
...#!/usr/bin/env tarantool
local function handler(self)
return self:render{ json = { ['Your-IP-Is'] = self.peer.host } }
end
local server = require('http.server').new(nil, 8080) -- listen *:8080
server:route({ path = '/' }, handler)
server:start()
-- connect to localhost:8080 and see jsonThis snipplet requires http rock. See also our nginx-tarantool-upstream module.
A http rock has pretty simple template engine which allow to execute regular Lua code inside text blocks (like PHP). You don't need to learn extra languages to write templates.
Hashbang script:
#!/usr/bin/env tarantool
local function handler(self)
local fruits = { 'Apple', 'Orange', 'Grapefruit', 'Banana'}
return self:render{ fruits = fruits }
end
local server = require('http.server').new(nil, 8080) -- nil means '*'
server:route({ path = '/', file = 'index.html.lua' }, handler)
server:start()A templates/index.html.lua file:
<html>
<body>
<table border="1">
% for i,v in pairs(fruits) do
<tr>
<td><%= i %></td>
<td><%= v %></td>
</tr>
% end
</table>
</body>
</html>Produced result:
| 1 | Apple |
| 2 | Orange |
| 3 | Grapefruit |
| 4 | Banana |
Please consult http documentation for more details.
tarantool> require('digest').md5_hex('password')
---
- 5f4dcc3b5aa765d61d8327deb882cf99
...
tarantool> require('digest').sha256_hex('password')
---
- 5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8
...Use :func:`digest.urandom()` to get random bytes.
tarantool> digest.base64_encode(digest.urandom(16))
---
- pnZJK8QPupOAtAEA/1UmiA==
...As an alternative it is possible to use UUID:
tarantool> require('uuid').str()
---
- fb871f8a-cbf0-4fd7-8575-b3a500137b71
...