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Running the Tupelo RPC server

The Node.js client cannot directly manage chain trees or connect to the notary group, so node applications must instead proxy through an RPC server to work with Tupelo.

To install the server you can download the latest Tupelo executable here.
Once you have selected the appropriate binary for your platform save it within your command PATH variable. If you do not wish to save the binary to a directory in your PATH, you can still execute it with the fully qualified or relative path to your chosen location for the binary.

Next rename whichever version you downloaded and confirm that the tupelo binary is executable.

mv tupelo-v0.4.0-darwin-amd64 tupelo
chmod +x tupelo

You can run the network locally or connect to our TestNet.

After successfully installing the binary, you can run the RPC server by invoking tupelo (or the full or relative path to your chosen install location if you did not install Tupelo in a PATH directory) along with the necessary options. Production applications will usually connect to an independent notary group, but you can also choose to run and connect to a local notary group to make working in development easier.

Connecting the RPC Server to a Local Notary Group

To start the RPC server and notary group for local development, run:

tupelo rpc-server

This invocation will start a 3 signer local notary group after first generating random keypairs for the group to use. After that, the RPC server will start, bind itself to the local notary group, and listen on port 50051.

Connecting the RPC Server to a TestNet

You have the option to connect to our TestNet. This TestNet is shared among our community of developers and currently has 21 signing nodes running.

To connect to the TestNet, you’ll need to set the TUPELO_BOOTSTRAP_NODES env variable - you’ll find the current value inside bootstrap.env in testnet-keys.zip.

With that environment variable set and the zipfile expanded, you can now run tupelo with:

./tupelo rpc-server -k testnet-keys/

That sample command assumes the Tupelo binary is next to the extracted testnet-keys.zip, but -k can take a full path if you put the file somewhere else.

Note there are other TestNets available if the one provided does not meet your needs. Please reach out via the feedback form below and let us know how we can help or what issues you might be having.


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