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noradle-demo

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demo app of noradle

github.com/noradle/noradle-demo

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noradle official demo app show how to use http servlet, NDBC, call-out(with socket.io) with oracle PL/SQL. # introduction "noradle-demo" is originally a part from "[noradle](https://github.com/kaven276/noradle)" project as "./demo" sub directory, now, the demo app in [noradle](https://www.npmjs.com/package/noradle) is a independent project. # install npm -g install noradle-demo cd "project root" sqlplus "/ as sysdba" @install.sql or sqlplus "/ as sysdba" @http://static.noradle.com/repo/noradle-demo/install.sql In oracle database, configure server_control_t, and run noradle dispatcher to listen for client connection. `npm start [dispatcher_addr:=1522] [http_listen_addr:=8888]` to start the demo. or run `noradle-demo [dispatcher_addr:=1522] [http_listen_addr:=8888]` how to start noradle server, see <https://github.com/kaven276/noradle> Check http://127.0.0.1:8888/demo to see if demo web app is working. # feature exhibited * get http request info - for basic http header - for cookie values - for querystring - for form post - get varchar2, number, date parameters - for file upload - for post entity body * write response info - basic h.line, h.write API - x. TAG print API - m. interpolate template with comma separated string, array or sys_refcursor - tb. support table print - tr. support tree structure print, usually ul,li nested tags - use l(url) to easy specify url the plsql servlet link to - rs. print sys_refcursor data as compact sql result set that can be easy parsed to javascript objects - multiple ways of print xml data - demos that easy utilize css frameworks like bootstrap, pure-css, jquery-mobile - embed/link coupled-in css - auto redirect post to *_c* procedure to a feedback page - clean previous output in buffer, and regenerating page response * charset and international support - support db-charset output or any unicode output, auto conversion - content negotiation for accept-language * set response headers that affect the process afterward - chunked transfer with `h.flush`, return partial response as quick as possible - long job that must give partial reponse to client after one step is completed - response compression like gzip - response body conversion for *text/items* and *text/resultsets* - specify *Content-Type* - specify charset - file download or attachement - http redirect immediately or after a delay * filter support - before filter used for authentication check, cache data prefetch - after filter for logging - login & logoff * session - get session data - set session data * oracle result-cache - utilize oracle result cache to cache frequent access data like filter data fetch - force cache invalidate or update when time is out or then real data is changed * use NDBC call - set default parameters - call with parameters - use response callback that receive statis,header,entity - if automatic convert original response from oracle to javascript object - support *text/items*, that is lines of data, save line separator is used - support "text/resultsets*, that is produced from sys_refcursor * execute call out from oracle (repeated NDBC call) - call plsql servlet that wait event like pipe new message - after plsql servlet wait event timeout, repeat call the plsql servlet - call for oracle call-out message, and send back response to oracle calling service - use h.begin_msg,h.end_msg to mark output to header/body is for call-out message