Incubed Client in C

Example

Please have a look at the examples folder in the repo for more detailed examples.

CLI

in3 can be used on the command line in this manner:

in3 [options] method [arguments]

For example,

To get block number, run:

> in3 eth_blockNumber
8610795

A more detailed list with information on arguments can be found here.

C Code

Example C code can be found here

#include <in3/client.h>    // the core client
#include <in3/eth_basic.h> // use the basic module
#include <in3/in3_curl.h>  // transport implementation
#include <inttypes.h>
#include <stdio.h>
int main(int argc, char* argv[]) {  // register a chain-verifier for basic Ethereum-Support, which is enough to verify blocks  in3registereth_basic();
in3registercurl(); // use curl as the default for sending out requests
in3t* in3 = in3forchain(CHAINID_MAINNET); // create new incubed client
char result, error;  // prepare 2 pointers for the result.
in3rett res = in3clientrpc(   // send raw rpc-request, which is then verified      in3,                    //  the configured client      "eth_getBlockByNumber", // the rpc-method you want to call.      "[\"latest\",true]",    // the arguments as json-string      &result,                // the reference to a pointer whill hold the result      &error);                // the pointer which may hold a error message
if (res == IN3_OK) {    printf("Latest block : \n%s\n", result);    free(result);  } else {    printf("Error verifing the Latest block : \n%s\n", error);    free(error);  }  in3_free(in3);   // cleanup client after usage
}

A more detailed example with information on how to call functions can be found here.

Features

| | in3 | Remote Client | Light Client | | ------------------------------------- | :-------------------------: | :--------------: | :------------: | | Failsafe connection | ✔️ | ❌ | ✔️ | | Automatic Nodelist updates | ✔️ | ❌ | ✔️ | | Partial nodelist | ✔️ | ❌ | ✔️ | | Multi-chain support | ✔️ | ✔️ | ❌ | | Full verification of JSON-RPC methods | ✔️ | ❌ | ❌ | | IPFS support | ✔️ | ✔️ | ❌ | | Caching support | ✔️ | ❌ | ❌ | | Proof-Levels | ✔️ | ❌ | ❌ | | POA Support | ✔️ | ✔️ | ✔️ | | Database setup size-minutes | 0-instant️ | 0-instant | ~50Mb-minutes️ | | Uses | IoT devices,Mobile,browser️ | Mobile,browser️️ | PC,Laptop️ |

Resources

• C API reference
• C examples
• in3-node
• in3 typescript client
• Website
• ReadTheDocs
• Blog
• Incubed concept video by Christoph Jentzsch
• Ethereum verification explained by Simon Jentzsch

Contributors welcome!

We at Blockchains believe in the power of the open source community. Feel free to open any issues you may come across, fork the repository and integrate in your own projects. You can reach us on various social media platforms for any questions and suggestions.

Got any questions?

Contact us on or send us an email at team-in3@slock.it

LICENSE

COMMERCIAL LICENSE

Licensees holding a valid commercial license may use this software in accordance with the commercial license agreement provided with the Software or, alternatively, in accordance with the terms contained in a written agreement between you and slock.it GmbH/Blockchains LLC. For licensing terms and conditions or further information please contact slock.it at in3@slock.it. Alternatively, this software may be used under the AGPL license as follows:

AGPL LICENSE

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. [Permissions of this strong copyleft license are conditioned on making available complete source code of licensed works and modifications, which include larger works using a licensed work, under the same license. Copyright and license notices must be preserved. Contributors provide an express grant of patent rights.] You should have received a copy of the GNU Affero General Public License along with this program. If not, see .