AppSuite:Http.js: Difference between revisions
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Revision as of 14:26, 19 April 2013
Requesting server api with http.js
Abstract
- located: io.ox/core/http.js
 - purpose: centralizes ajax api calls
 
HTTP facades
general example
http.GET({ 
        module: 'mail',
        params: { 
            action: 'all', 
            folder: 'default0/INBOX' 
        }
    });
GET(options)
/**
 * Send a GET request
 * @param {Object}  options Request options 
 * @returns {Object} jQuery's Deferred
 */
POST(options)
/**
 * Send a POST request
 * @param {Object} options Request options
 * @returns {Object} jQuery's Deferred
 */
FORM(options)
/**
 * Send a POST request using a FormData object
 * @param {Object} options Request options
 * @param {string} options.module Module, e.g. folder, mail, calendar etc.
 * @param {Object} options.params URL parameters
 * @returns {Object} jQuery's Deferred
 */
PUT(options)
/**
 * Send a PUT request
 * @param {Object} options Request options
 * @returns {Object} jQuery's Deferred
 */
DELETE(options)
/**
 * Send a DELETE request
 * @param {Object} options Request options
 * @returns {Object} jQuery's Deferred
 */
UPLOAD(options)
/**
 * Send a UPLOAD request
 * @param {Object} options Request options
 * @returns {Object} jQuery's Deferred
 */
column mappings
- server requests
- still require use of columns ids
 
 - server response
- column_id keys will be replaced with column names to ease handling
 
 
getMappedModules()
/**
 * get names of mapped modules
 * @returns {array} mapped modules
 */
getAllColumns(module, join)
/**
 * get all columns of a module 
 * @param {string} module (name) 
 * @param {boolean} join (join array with comma separator ) 
 * @return {arrray|string} ids */ ```
getColumnMapping(module)
/**
 * returns the column mapping of a module
 * @param {string} module The module name.
 * @returns {object} A map from numeric column IDs to the corresponding field names.
 */
makeObject(data, module, columns)
/**
 * transform objects with array-based columns into key-value-based columns
 * @param {Array} data Data
 * @param {string} module Module name
 * @param {Array} columns Columns
 * @returns {Object} Transformed object
 */
request stacking
- stack ability for calls to minimize overhead of server communication
 
pause() and resume()
example
// pause http layer
http.pause();
// process all updates
_(list).map(function (item) {
    return http.PUT({
        module: 'calendar',
        params: {
            action: 'update',
            id: item.id,
            folder: item.folder_id,
            timestamp: item.timestamp
        },
        data: {  ...  },
    });
});
// resume & trigger refresh
http.resume()
retry (request)
- retry request
 
utils
simplify(list)
- simplify objects in array for list requests
 - returns array of items
 - possible returned item types
- { id: '8978989' }
 - { folder: 'inbox' }
 - { recurrence_position: 'inbox' }
 - 8978989
 - 'inbox'
 
 
/**
 * Simplify objects in array for list requests
 * @param  {array} list
 * @returns {array} list    
 */
fixList(ids, deferred)
/**
 * Fixes order of list requests (temp. fixes backend bug)
 * @param  {array} ids
 * @param  {deferred} deferred
 * @return {deferred} resolve returns array
 */
logging
log()
/**
 * returns failed calls
 * @return {backbone.collection}
 */