feat: error overhaul

CHANGELOG.md

@@ -8,6 +8,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+* BREAKING: `AgentError` is now an opaque error type which reveals only the general category of error that occurred. `ic-utils` now has its own error types.
+* `AgentError` now contains information about the ongoing operation the error occurred in the context of. This allows you to see if a call successfully went through even if there was for example an error decoding the response.
 * Add `read_state_canister_controllers` and `read_state_canister_module_hash` functions.
 
 ## [0.40.0] - 2025-03-17

Cargo.toml

@@ -30,6 +30,7 @@ ic-utils = { path = "ic-utils", version = "0.40.0" }
 ic-transport-types = { path = "ic-transport-types", version = "0.40.0" }
 
 ic-certification = "3"
+ic_principal = "0.1"
 candid = "0.10.10"
 candid_parser = "0.1.4"
 clap = "4.5.21"

ic-agent/Cargo.toml

@@ -25,7 +25,6 @@ async-trait = "0.1"
 async-watch = "0.3"
 backoff = "0.4.0"
 cached = { version = "0.52", features = ["ahash"], default-features = false }
-candid = { workspace = true }
 der = "0.7"
 ecdsa = "0.16"
 ed25519-consensus = { workspace = true }
@@ -34,17 +33,20 @@ futures-util = { workspace = true }
 hex = { workspace = true }
 http = "1.0.0"
 http-body = "1.0.0"
+ic_principal = { workspace = true }
 ic-certification = { workspace = true }
 ic-transport-types = { workspace = true }
 ic-verify-bls-signature = "0.5"
+itertools = "0.14.0"
 k256 = { workspace = true, features = ["pem"] }
-p256 = { workspace = true, features = ["pem"] }
 leb128 = { workspace = true }
+p256 = { workspace = true, features = ["pem"] }
+pin-project = "1.1.10"
 pkcs8 = { version = "0.10.2", features = ["std"] }
-sec1 = { version = "0.7.2", features = ["pem"] }
 rand = { workspace = true }
 rangemap = "1.4"
 ring = { version = "0.17", optional = true }
+sec1 = { version = "0.7.2", features = ["pem"] }
 serde = { workspace = true, features = ["derive"] }
 serde_bytes = { workspace = true }
 serde_cbor = { workspace = true }
@@ -78,6 +80,7 @@ wasm-bindgen-futures = { version = "0.4", optional = true }
 web-sys = { version = "0.3", features = ["Window"], optional = true }
 
 [dev-dependencies]
+candid = { workspace = true }
 serde_json.workspace = true
 tracing-subscriber = "0.3"
 tracing = "0.1"