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Introduction to Protocol Buffers on iOS

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1

Protocol buffers are a language-agnostic method for serializing structured data that can be used as an alternative to XML or JSON in your iOS apps.

This is a companion discussion topic for the original entry at https://www.raywenderlich.com/749-introduction-to-protocol-buffers-on-ios
2

Could be more interesting with a full stack Swift solution :wink:
Another solution is to use flatbuffer

5

@frohmen yes haha it’s suppose to spit out all of that. I couldn’t find a way to not make the script verbose. sorry :confused:

@tof yea could be cool!

6

I’m getting this error while running ./protoInstallation.sh :

libtool: link: cannot find the library Buffers/Starter/protobuf-3.1.0/src/libprotobuf.la or unhandled argument Buffers/Starter/protobuf-3.1.0/src/libprotobuf.la
The path looks wrong to me…

As a result I don’t have protoc in my system.

7

@akonakov do you by any chance have a space in the root directory? Like the following Starter and Starter 2 .
If the root directory has a space like Starter 2 it could be possible the script ./protoInstallation.sh will not be able to find the path.

As shown below:

Screen Shot 2017-02-07 at 9.26.06 AM.png1284×168 33.3 KB

Another alternative is to try to install protoc manually with the following:

  cd ./protobuf-3.1.0/
  ./configure
  make
  make check
  sudo make install
  sudo ldconfig # refresh shared library cache.

Tried to make the script as robust as possible :confused:

8

Yes, the root directory initially had a space in its name - now I’ve renamed it, but still getting the same error. And I can’t find ldconfig. No luck for me :frowning:

9

@akonakov

  1. can you try deleting every single project you downloaded.
  2. Clear your trash
  3. Can you redownload a fresh copy.

Make sure you don’t have duplicate names in the same directory. Spaces are bad with scripts :smiley:

I think it’s cached.

10

Yeah, it was cached somewhere. Eventually deleted everything unzipped before and extracted again. Now it looks to be OK, thanks, man!

1 Like
11

To mention: Apple has a format called Binary Plist. Not widely used thou.

12

After I’m done with the tutorial, how do I remove everything I just installed? I don’t have a lot of drive space so I’m looking to reclaim it.

13

@fbara, try looking into /usr/local/bin or /usr/local/bin to remove the protoc libs.

Screen Shot 2017-02-23 at 12.29.40 AM.png2398×208 57.9 KB

To uninstall flask you could try:

Hope this helps, thanks!

14

It does help, thanks for replying!

15

I am getting this error

Running ProtoBuf Compiler to convert .proto schema to Swift
dyld: Symbol not found: __TWPVSS13CharacterViews13IndexableBases
Referenced from: /usr/local/bin/protoc-gen-swift
Expected in: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/macosx/libswiftCore.dylib
in /usr/local/bin/protoc-gen-swift
–swift_out: protoc-gen-swift: Plugin killed by signal 6.

16

How to make a post or put call with Protobuf object? I want to use alamofire for this call.

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This tutorial is more than six months old so questions regarding it are no longer supported for the moment. We will update it as soon as possible. Thank you! :]