feat: upgrade to a2a-sdk v1.0.0-alpha.0 with v0.3 compat layer#12
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feat: upgrade to a2a-sdk v1.0.0-alpha.0 with v0.3 compat layer#12
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Upgrades the SDK dependency from a2a-sdk==0.3.20 to a2a-sdk[telemetry,sqlite]==1.0.0-alpha.0, and restructures the package to support both protocol versions simultaneously. Key changes: - Add slima2a/compat/v3_0/ with SRPCCompatHandler and SRPCCompatTransport for backward-compatible v0.3 wire support - Add slima2a/types/v0/ (moved from slima2a/types/) and slima2a/types/v1/ with separate SlimRPC bindings per protocol version - Rewrite slima2a/client_transport.py and slima2a/handler.py for the v1.0 proto types (no Pydantic conversion needed) - Split buf.gen.yaml into buf.gen.v0.yaml and buf.gen.v1.yaml - Update examples to use v1.0 proto types and add --a2a-version flag (v0/v1/both) to echo_agent server; fix sys.path so scripts can be run directly with `uv run examples/...` without conflicting with the slim-bindings examples package Signed-off-by: Sam Betts <1769706+Tehsmash@users.noreply.github.com>
Pass the shared secret explicitly in all four example scripts to match the value used in slim-a2a-go echo_agent examples, enabling cross-language testing out of the box. Signed-off-by: Sam Betts <1769706+Tehsmash@users.noreply.github.com>
- list(response.parts): RepeatedCompositeFieldContainer is not list[Part] - fetch_agent_card return type: object -> AgentCard; add AgentCard import - TaskState.completed -> TaskState.TASK_STATE_COMPLETED (proto enum name) Signed-off-by: Sam Betts <1769706+Tehsmash@users.noreply.github.com>
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Summary
a2a-sdkfrom0.3.20to1.0.0-alpha.0(proto-based types, new service namelf.a2a.v1.A2AService)slima2a/compat/v3_0/withSRPCCompatHandlerandSRPCCompatTransportso servers/clients can continue speaking the v0.3 wire protocol (a2a.v1.A2AService) via a bridge to the v1.0RequestHandlerinterfaceslima2a/types/v0/(v0.3) andslima2a/types/v1/(v1.0); both service names can coexist on the same SLIM serverslima2a/client_transport.pyandslima2a/handler.pyfor v1.0 proto types directly (no Pydantic conversion)buf.gen.yamlintobuf.gen.v0.yamlandbuf.gen.v1.yaml--a2a-version v0|v1|bothflag toecho_agentserver and--a2a-version v0|v1to clientssys.pathin example scripts souv run examples/...works without colliding with theexamplespackage installed byslim-bindingssqliteextra toa2a-sdkdependency to satisfy SQLAlchemy requirement froma2a.compat.v0_3BEGIN_COMMIT_OVERRIDE
feat!: upgrade to a2a-sdk v1.0.0-alpha.0 with v0.3 compat layer
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