Can't connect photon to local server

Troubleshooting
1

I’m trying to connect my Photon to a local server on my Respberry Pi and I’m getting a “CryptoStream transform error”. I’ve seen other discussion regarding this problem, and I see on Github a “commit” that fixes the problem apparently posted yesterday.

CryptoStream error fix

So I am very new to all of this. I’ve never run a local server before. I’m not sure what a “commit” is. I’ve tried running npm update in the spark-server directory and I still get the error. I’m not sure where to go from here.

How can I implement this fix?

2

Do you have git installed?

3

Yes, I do. Should I use git clone to redownload spark-server files and run npm-install again?

4

Use this:

  • git clone https://github.com/straccio/spark-protocol
  • replace this inside the node_modules of spark-server
5

Nope, had to go in manually and edit CrytoStream.js to match the “commit”. Phew! Finally connected!!! Took me days of reading through various tutorials and learning way more about Linux than I wanted to know in order to make it happen. I really hope you guys make streamlining local server installation a priority for us not so sophisticated folks.

For anyone who happens to stumble across this and is looking for help getting a local server running on a raspberry pi, here’s a script I wrote to make it happen. Sprinkle sudo reboot liberally throughout.

Setup Script:

Load Raspbian Jesse

sudo apt-get update
sudo apt-get upgrade
sudo apt-get build-dep dfu-util
sudo apt-get install libusb-1.0-0-dev
sudo apt-get install npm
mkdir ~/.npm-global
npm config set prefix '~/.npm-global'

Open or create a ~/.profile file and add this line:
export PATH=~/.npm-global/bin:$PATH

source ~/.profile
sudo npm cache clean -f
sudo npm install -g n
sudo n stable
npm install -g particle-cli
nano /etc/dhcpcd.conf

Add:
interface eth0
static ip_address=192.168.0.10/24
static routers=192.168.0.1
static domain_name_servers=192.168.0.1

wget http://dfu-util.gnumonks.org/releases/dfu-util-0.7.tar.gz
tar xvf dfu-util-0.7.tar.gz
cd dfu-util-0.7
./configure
make
sudo make install
cd
git clone https://github.com/spark/spark-server.git
cd spark-server
npm install
node main.js

That will at least get the server running.