Requestor development: a quick primer
This tutorial shows how to use the new Golem to run an app inside a custom Docker image in parallel on multiple providers.
While it's possible that you'll be successful running Golem and this tutorial on other platforms, we officially support the following:
- OS X 10.14+
- Ubuntu 18.04 or 20.04
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nvm install v12
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During development, you'll most likely want to run your tasks on the Rinkeby Testnet. In that case, you won't need any real ETH or GLM tokens to start this tutorial. These test assets are acquired by the daemon in one of the steps below.
Should you later want to run your tasks on the mainnet, to leverage the potential of all Golem's provider nodes, please have a look at: "Using Golem on Mainnet"
If you'd like to give us feedback, suggestions, have some errors to report or if you got stuck and need help while following our tutorials, please don't hesitate to reach out to us on our Golem Discord: https://chat.golem.network
Yagna is the main service of the new Golem that's responsible for maintaining the marketplace and keeping connections with all the other nodes in the network.
In order to follow our requestor agent tutorial, you'll first need to run the
You can install it using our helper script like this:
curl -sSf https://join.golem.network/as-requestor | bash -
You might be asked to modify your PATH afterwards.
On Windows, only the manual installation is supported.
Alternatively, if you'd like to have more control over the installation process, or would like to choose where the binaries end up, you can do that manually.
First, download the requestor package - prefixed
golem-requestor- appropriate for your platform from: https://github.com/golemfactory/yagna/releases/tag/v0.12.0.
Unpack it and put the binaries contained within somewhere in your
PATH(e.g. copy them to
/usr/local/binon Unix-like systems) or add the directory you placed the binaries in to your
It's important for the
gftpbinaries to be available in your shell's PATH, otherwise, you'll encounter issues while continuing the tutorial.
Once binaries are installed, confirm that you're running the latest Golem release:
It should output:
yagna 0.12.0 (37060503 2022-12-02 build #251)
Please also verify that you have the correct version of the
gftpbinary used for file transfers in the Golem network.
It should output:
gftp 0.12.0 (37060503 2022-12-02 build #251)
Now, you can run the daemon:
yagna service run
Important: After you launch the daemon, leave it running in the background while you proceed with the tutorial.
Sometimes, you may notice errors while running the yagna daemon or the example script. Unless they cause your task to be aborted or never finished they are usually no reason to worry. In case of doubt, please consult our list of "Common Issues" in the Troubleshooting section.
With the daemon running, enter the daemon's directory using another shell and generate the
yagnaapp key that will be used by your requestor agent to access yagna's REST API.
yagna app-key create requestor
This should produce a 32-character-long hexadecimal app key that you need to note down as it will be needed to run the requestor agent.
If you intend to expose your yagna daemon's REST API port to the outside world (which we strongly discourage), you should absolutely ensure that you keep this key secret, as anyone with access to the key and the port will have complete control over your daemon.
In case you lose your app key, you can retrieve it with:
yagna app-key list
the value in the
keycolumn is the key you need.
In order to be able to request tasks on Golem, you'll need some GLM tokens (called tGLM on the rinkeby testnet) to pay the providers with. Even on the testnet, those tokens are still required but of course, you can easily get them issued to you using our tGLM faucet.
That's done using:
yagna payment fund
It tells yagna to check for funds on your node and if needed, contacts the faucet which, in turn, issues some test GLM and test ETH tokens to the node on the Rinkeby testnet.
Once you issue the command, allow some time until it completes its job. You can verify whether you already have the funds with:
yagna payment status
If, after a few minutes, you still can't see the tokens, re-run the
yagna payment fundcommand above and check again after a few more minutes.
As the last resort, if you suspect that there is a more serious issue with the payment driver or our faucet, you may wish to completely do away with using it and fall back to the older, on-chain payment driver. In such a case, please refer to the instructions in our troubleshooting section.
With this completed, you're good to go!
Now you are ready to run computations on Golem: