samuelschroeder.com
Ruby in the front, Rails in the back.

All I wanted was some simple code to POST an image to a web service from my iPhone project. No big deal, right? Apparently, not.

Based on my google search results many people we were wanting the same thing and just not finding it. There are a couple iphone development sites giving examples and some really old open-source projects but nothing really felt right to me. So being a good developer I hacked something together which works for me and posted it on GitHub.

Issuing standard GETs and POSTs with Cocoa is pretty easy, but I couldn’t find anything easy to make multi-part forms for POSTing. This is where mini-mallows comes in. Just make some Cocoa, add some mini-mallows (form fields & a file), and POST.

Easy.

Current status

This project was written to satisfy my need to POST a single image and related form fields from an iPhone app to a web service. It only allows for the addition of one file per request. I am very open to comments, patches, and ridicule.

Installation

Get the code from GitHub => a href=”http://github.com/sschroed/mini-mallows”>http://github.com/sschroed/mini-mallows

Copy the files MultipartForm.h and MultipartForm.m anywhere you like into your Xcode project.

Usage

First, add your standard #import.

#import "MultipartForm.h"

Create a NSURL object as you’ll need to send that to Mini-Mallows.

NSURL *postUrl = [NSURL URLWithString:@"http://www.domain.com"];

Now create a MultipartForm object and a few form fields and a file. I really wanted to call the class MiniMallows but MultipartForm is easier on the eyes.

MultipartForm *form = [[MultipartForm alloc] initWithURL:postUrl]; [form addFormField:@"formFieldName1" withStringData:@"This is some data"]; [form addFormField:@"formFieldName2" withStringData:@"This is more data"]; [form addFile:@"path/to/file" withFieldName:@"formFieldForFile"];

When you are done adding fields and the file you can get a fully formed NSMutableURLRequest object from Mini-Mallows.

NSMutableURLRequest *postRequest = [form mpfRequest];

All set so POST the form.

NSData *urlData; NSURLResponse *response; NSError *error; urlData = [NSURLConnection sendSynchronousRequest:postRequest returningResponse:&response error:&error];

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