Support for Cross Chain Interoperability Protocol #1894
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## Relevant issue(s) Resolves #1894 ## Description This PR adds an HTTP handler that enables DefraDB to act as an off-chain data oracle for smart contracts. Here is an end-to-end example of how this feature works: https://github.com/sourcenetwork/defradb-example-ccip ## Tasks - [x] I made sure the code is well commented, particularly hard-to-understand areas. - [x] I made sure the repository-held documentation is changed accordingly. - [x] I made sure the pull request title adheres to the conventional commit style (the subset used in the project can be found in [tools/configs/chglog/config.yml](tools/configs/chglog/config.yml)). - [x] I made sure to discuss its limitations such as threats to validity, vulnerability to mistake and misuse, robustness to invalidation of assumptions, resource requirements, ... ## How has this been tested? Unit tests Specify the platform(s) on which this was tested: - MacOS
shahzadlone
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Oct 2, 2023
## Relevant issue(s) Resolves #1894 ## Description This PR adds an HTTP handler that enables DefraDB to act as an off-chain data oracle for smart contracts. Here is an end-to-end example of how this feature works: https://github.com/sourcenetwork/defradb-example-ccip ## Tasks - [x] I made sure the code is well commented, particularly hard-to-understand areas. - [x] I made sure the repository-held documentation is changed accordingly. - [x] I made sure the pull request title adheres to the conventional commit style (the subset used in the project can be found in [tools/configs/chglog/config.yml](tools/configs/chglog/config.yml)). - [x] I made sure to discuss its limitations such as threats to validity, vulnerability to mistake and misuse, robustness to invalidation of assumptions, resource requirements, ... ## How has this been tested? Unit tests Specify the platform(s) on which this was tested: - MacOS
shahzadlone
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Feb 23, 2024
## Relevant issue(s) Resolves sourcenetwork#1894 ## Description This PR adds an HTTP handler that enables DefraDB to act as an off-chain data oracle for smart contracts. Here is an end-to-end example of how this feature works: https://github.com/sourcenetwork/defradb-example-ccip ## Tasks - [x] I made sure the code is well commented, particularly hard-to-understand areas. - [x] I made sure the repository-held documentation is changed accordingly. - [x] I made sure the pull request title adheres to the conventional commit style (the subset used in the project can be found in [tools/configs/chglog/config.yml](tools/configs/chglog/config.yml)). - [x] I made sure to discuss its limitations such as threats to validity, vulnerability to mistake and misuse, robustness to invalidation of assumptions, resource requirements, ... ## How has this been tested? Unit tests Specify the platform(s) on which this was tested: - MacOS
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Adding support for CCIP will enable DefraDB to serve as a data oracle for Ethereum and EVM based blockchains. The specification is simple to implement and defines a standard request and response structure over HTTP. Because GraphQL supports mutations as well as queries this will enable both CCIP reads and writes.
https://eips.ethereum.org/EIPS/eip-3668#gateway-response-data-validation
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