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137/**
* @description
* HTTP code snippet generator for Objective-C using NSURLSession.
*
* @author
* @thibaultCha
*
* for any questions or issues regarding the generated code snippet, please open an issue mentioning the author.
*/
'use strict'
const helpers = require('./helpers')
const CodeBuilder = require('../../helpers/code-builder')
module.exports = function (source, options) {
const opts = Object.assign({
indent: ' ',
pretty: true,
timeout: '10'
}, options)
const code = new CodeBuilder(opts.indent)
// Markers for headers to be created as literal objects and later be set on the NSURLRequest if exist
const req = {
hasHeaders: false,
hasBody: false
}
// We just want to make sure people understand that is the only dependency
code.push('#import <Foundation/Foundation.h>')
if (Object.keys(source.allHeaders).length) {
req.hasHeaders = true
code.blank()
.push(helpers.nsDeclaration('NSDictionary', 'headers', source.allHeaders, opts.pretty))
}
if (source.postData.text || source.postData.jsonObj || source.postData.params) {
req.hasBody = true
switch (source.postData.mimeType) {
case 'application/x-www-form-urlencoded':
// By appending parameters one by one in the resulting snippet,
// we make it easier for the user to edit it according to his or her needs after pasting.
// The user can just add/remove lines adding/removing body parameters.
code.blank()
.push('NSMutableData *postData = [[NSMutableData alloc] initWithData:[@"%s=%s" dataUsingEncoding:NSUTF8StringEncoding]];',
source.postData.params[0].name, source.postData.params[0].value)
for (let i = 1, len = source.postData.params.length; i < len; i++) {
code.push('[postData appendData:[@"&%s=%s" dataUsingEncoding:NSUTF8StringEncoding]];',
source.postData.params[i].name, source.postData.params[i].value)
}
break
case 'application/json':
if (source.postData.jsonObj) {
code.push(helpers.nsDeclaration('NSDictionary', 'parameters', source.postData.jsonObj, opts.pretty))
.blank()
.push('NSData *postData = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:nil];')
}
break
case 'multipart/form-data':
// By appending multipart parameters one by one in the resulting snippet,
// we make it easier for the user to edit it according to his or her needs after pasting.
// The user can just edit the parameters NSDictionary or put this part of a snippet in a multipart builder method.
code.push(helpers.nsDeclaration('NSArray', 'parameters', source.postData.params, opts.pretty))
.push('NSString *boundary = @"%s";', source.postData.boundary)
.blank()
.push('NSError *error;')
.push('NSMutableString *body = [NSMutableString string];')
.push('for (NSDictionary *param in parameters) {')
.push(1, '[body appendFormat:@"--%@\\r\\n", boundary];')
.push(1, 'if (param[@"fileName"]) {')
.push(2, '[body appendFormat:@"Content-Disposition:form-data; name=\\"%@\\"; filename=\\"%@\\"\\r\\n", param[@"name"], param[@"fileName"]];')
.push(2, '[body appendFormat:@"Content-Type: %@\\r\\n\\r\\n", param[@"contentType"]];')
.push(2, '[body appendFormat:@"%@", [NSString stringWithContentsOfFile:param[@"fileName"] encoding:NSUTF8StringEncoding error:&error]];')
.push(2, 'if (error) {')
.push(3, 'NSLog(@"%@", error);')
.push(2, '}')
.push(1, '} else {')
.push(2, '[body appendFormat:@"Content-Disposition:form-data; name=\\"%@\\"\\r\\n\\r\\n", param[@"name"]];')
.push(2, '[body appendFormat:@"%@", param[@"value"]];')
.push(1, '}')
.push('}')
.push('[body appendFormat:@"\\r\\n--%@--\\r\\n", boundary];')
.push('NSData *postData = [body dataUsingEncoding:NSUTF8StringEncoding];')
break
default:
code.blank()
.push('NSData *postData = [[NSData alloc] initWithData:[@"' + source.postData.text + '" dataUsingEncoding:NSUTF8StringEncoding]];')
}
}
code.blank()
.push('NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"' + source.fullUrl + '"]')
// NSURLRequestUseProtocolCachePolicy is the default policy, let's just always set it to avoid confusion.
.push(' cachePolicy:NSURLRequestUseProtocolCachePolicy')
.push(' timeoutInterval:' + parseInt(opts.timeout, 10).toFixed(1) + '];')
.push('[request setHTTPMethod:@"' + source.method + '"];')
if (req.hasHeaders) {
code.push('[request setAllHTTPHeaderFields:headers];')
}
if (req.hasBody) {
code.push('[request setHTTPBody:postData];')
}
code.blank()
// Retrieving the shared session will be less verbose than creating a new one.
.push('NSURLSession *session = [NSURLSession sharedSession];')
.push('NSURLSessionDataTask *dataTask = [session dataTaskWithRequest:request')
.push(' completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {')
.push(1, ' if (error) {')
.push(2, ' NSLog(@"%@", error);')
.push(1, ' } else {')
// Casting the NSURLResponse to NSHTTPURLResponse so the user can see the status .
.push(2, ' NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *) response;')
.push(2, ' NSLog(@"%@", httpResponse);')
.push(1, ' }')
.push(' }];')
.push('[dataTask resume];')
return code.join()
}
module.exports.info = {
key: 'nsurlsession',
title: 'NSURLSession',
link: 'https://developer.apple.com/library/mac/documentation/Foundation/Reference/NSURLSession_class/index.html',
description: 'Foundation\'s NSURLSession request'
}