JSON, REST, SOAP, WSDL, and SOA: How do they all link together -


currently doing exams , i'm struggling through concepts. these have been 'mentioned' in notes didn't understand how linked together. far understanding is:

soa - solution make service consumers/providers communicate. (as far understand umbrella term else)

wsdl - language describes provider service.

soap - xml protocol 'wrapper' used services send messages. works in conjunction wsdl provide parameters?

rest - design pattern similar soap in function avoids xml? (really not sure one)

json - alternative xml uses javascript? (not sure 1 either)

looking around in internet there doesn't seem clear definition of of these , how interlink.

imagine developing web-application , decide decouple functionality presentation of application, because affords greater freedom.

you create api , let others implement own front-ends on well. did here implement soa methodology, i.e. using web-services.

web services make functional building-blocks accessible on standard internet protocols independent of platforms , programming languages.

so, design interchange mechanism between back-end (web-service) processing , generation of useful, , front-end (which consumes data), anything. (a web, mobile, or desktop application, or web-service). limitation here front-end , back-end must "speak" same "language".

that's soap , rest come in. standard ways you'd pick communicate web-service.

soap:

soap internally uses xml send data , forth. soap messages have rigid structure , response xml needs parsed. wsdl specification of requests can made, parameters, , return. complete specification of api.

rest:

rest design concept.

the world wide web represents largest implementation of system conforming rest architectural style.

it isn't rigid soap. restful web-services use standard uris , methods make calls webservice. when request uri, returns representation of object, can perform operations upon (e.g. get, put, post, delete). not limited picking xml represent data, pick (json included)

flickr's rest api goes further , lets return images well.

json , xml, functionally equivalent, , either chosen. xml thought of being verbose, , harder parse, many-a-times, data more adequately represented using json. (e.g. serialization)

it choice nonetheless.


Comments

Post a Comment

Popular posts from this blog

SPSS keyboard combination alters encoding -

my question not have programming practical issue on spss. accident keyword combination cannot remember because did not intend press changed encoding in spss , text in data in different language english shown small boxes. nevertheless, when kind of analysis performed different language text shown in output. does know reason? tried change encoding did not produce result. first, @ edit > options , see whether setting unicode or locale. might fix it. if have text in multiple languages, want unicode. otherwise, may have specific locale set wrong. can change set locale, need know locale want use.
Read more

Add new record to the table by click on the button in Microsoft Access -

in ms access form want implement separate button, adds new record table. in order added button , attached button event: private sub btnaddrec_click() refresh codecontextobject on error resume next docmd.gotorecord , , acnewrec if err.number <> 0 btnaddrec.enabled = false end if end end sub everything ok when open window , click btnaddrec button, problem when first of perform navigation through existed records , after click on button. got runtime error: 2105: «you can't go specified record. may @ end of recordset» . how solve issue, need have ability add new record on click on specific button, no matter, have walked or not walked through records before. thanks. i created simple form field call description (and autonumber) , created button code follows click event. filled number of records , navigated through them, clicked addnewrec button. form navigated new record without issues. able click addnewrec button directly after
Read more

CSS3 Transition to highlight new elements created in JQuery -

i want use css3 color transition apply highlight-fading color effect (yellow transparent) new elements appended markup using jquery. css #content div { background-color:transparent; -moz-transition:background-color 2s; -webkit-transition:background-color 2s; -o-transition:background-color 2s; transition:background-color 2s; } #content div.new { background-color:yellow; } html <div id="content"></div> <a id="add-element" href="#">add new element</a> js $('#add-element').click(function() { var newelement = $('<div class="new">new element</div>'); $('#content').append(newelement); newelement.removeclass('new'); }); when click link, new element created. class "new" (background color yellow) , it's appended html markup. should able remove "new" class trigger background color transition transparent (or whate
Read more