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gregorydemay
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Thanks a lot for the PR @gregorydemay ! Just 1-2 minor nits, otherwise LGTM!
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@gregorydemay Thanks for adding the documentation! Love the ASCII art!
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Thanks for the clarification and small tweak to the docs, LGTM!
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Follow-up on #370, #364, and #374 to add a conversion layer between request and responses to handle [JSON RPC](https://www.jsonrpc.org/specification) over HTTP. Concretely: 1. Refactor existing infrastructure to handle errors explicitly, instead of having to downcast `BoxError`. This is beneficial since errors may happen at different layers and they all need to be handled by the above observability layer, e.g., add the corresponding metric in case the response has a non successful status. 2. Refactor existing infrastructure to transform request and response to use a single `Convert` trait to convert one type into another with some potential error. 3. Add a layer for `http::Request` and `http::Response` to transform their body into a JSON RPC type. This uses the above `Convert` trait. This conversion layer is behind a feature flag (`json`) since it requires `serde_json` to handle the serialization/deserialization 4. Add a new layer to filter out non-successful HTTP responses.
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Follow-up on dfinity/evm-rpc-canister#370 and dfinity/evm-rpc-canister#364 to add a conversion layer between request and responses so that the caller only has to deal with types from the Rust [`http`](https://crates.io/crates/http) crate. This has several advantages from the caller's point of view: 1. Can re-use existing types like `Request::builder` or `StatusCode`. 2. Requests are automatically sanitized and canonicalized (e.g. header names are validated and lower cased). 3. Can re-use existing middlewares, like from the `[tower-http`](https://crates.io/crates/tower-http) crate, since many of them require a client that uses the [`http`](https://crates.io/crates/http) crate.
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Follow-up on dfinity/evm-rpc-canister#370, dfinity/evm-rpc-canister#364, and dfinity/evm-rpc-canister#374 to add a conversion layer between request and responses to handle [JSON RPC](https://www.jsonrpc.org/specification) over HTTP. Concretely: 1. Refactor existing infrastructure to handle errors explicitly, instead of having to downcast `BoxError`. This is beneficial since errors may happen at different layers and they all need to be handled by the above observability layer, e.g., add the corresponding metric in case the response has a non successful status. 2. Refactor existing infrastructure to transform request and response to use a single `Convert` trait to convert one type into another with some potential error. 3. Add a layer for `http::Request` and `http::Response` to transform their body into a JSON RPC type. This uses the above `Convert` trait. This conversion layer is behind a feature flag (`json`) since it requires `serde_json` to handle the serialization/deserialization 4. Add a new layer to filter out non-successful HTTP responses.
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Follow-up on dfinity/evm-rpc-canister#370, dfinity/evm-rpc-canister#364, dfinity/evm-rpc-canister#374, and dfinity/evm-rpc-canister#375 to automatically retry requests by doubling its `max_response_bytes` when the response was too big.
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Follow-up on #370 and #364 to add a conversion layer between request and responses so that the caller only has to deal with types from the Rust
httpcrate. This has several advantages from the caller's point of view:Request::builderorStatusCode.[tower-http](https://crates.io/crates/tower-http) crate, since many of them require a client that uses thehttpcrate.