This application will parse the Official Cash Rate from the Reserve Bank of New Zealand web site. It saves the rate, announcement date, and link to the announcement in a PostgresQL database. It serves historical OCR changes on request by a GraphQL query.
This application assumes 9:00 AM NZ local time on the announcement date. In the query results the announced_on field is an ISO8601 combined UTC date and time.
$ createdb fin-data # create the postgresql database
$ lein run -m fin-data.db # create database table and populate with data
$ lein ring server-headless # runs the http server
In a browser location bar, try it out with
http://localhost:3000/graphql?query={official_cash_rates{announced_on+rate+link}}
Or using curl
curl -X POST -H "Content-Type:application/json" -d '
{
"query":"{official_cash_rates { announced_on rate link }}"
} ' http://localhost:3000/graphql
Example response,
{
"data": {
"official_cash_rates": [
{
"announced_on": "2017-03-22T20:00:00Z",
"rate": 1.75,
"link": "http://www.rbnz.govt.nz/news/2017/03/official-cash-rate-unchanged-at-1-75-percent"
},
{
"announced_on": "2017-02-08T20:00:00Z",
"rate": 1.75,
"link": "http://www.rbnz.govt.nz/news/2017/02/official-cash-rate-unchanged-at-1-75-percent"
},
{
"announced_on": "2016-11-09T20:00:00Z",
"rate": 1.75,
"link": "http://www.rbnz.govt.nz/news/2016/11/official-cash-rate-reduced-to-1-75-percent"
},
}
}
Copyright © 2017 A. Carl Douglas
Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.
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