96 lines
3.0 KiB
Julia
96 lines
3.0 KiB
Julia
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const DEFAULT_NATS_URL = "nats://localhost:4222"
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struct msgPayload_v1
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id::String # id of this payload
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dataname::String # name of this payload
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type::String # "text | json | table | image | audio | video | binary"
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transport::String # "direct | link"
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encoding::String # "none | json | base64 | arrow-ipc"
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size::Integer # data size in bytes e.g. 15433
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data::Any # payload data in case of direct transport or URL in case of link
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metadata::Dict{String, Any} # Dict("checksum=> "sha256_hash", ...)
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end
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# constructor
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function msgPayload_v1(
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id::String = "";
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dataname::String = "",
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type::String = "text",
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transport::String = "direct",
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encoding::String = "none",
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size::Integer = 0,
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data::Any = nothing,
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metadata::Dict{String, Any} = Dict{String, Any}()
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)
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return msgPayload_v1(
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id,
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dataname,
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type,
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transport,
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encoding,
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size,
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data,
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metadata
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)
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end
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struct msgEnvelope_v1
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correlationId::String # Unique identifier to track messages across systems. Many senders can talk about the same topic.
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msgId::String # this message id
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timestamp::String # message published timestamp. string(Dates.now())
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sendTo::String # topic/subject the sender sends to e.g. "/agent/wine/api/v1/prompt"
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msgPurpose::String # purpose of this message e.g. "ACK | NACK | updateStatus | shutdown | ..."
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senderName::String # sender name (String) e.g. "agent-wine-web-frontend"
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senderId::String # sender id e.g. uuid4snakecase()
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receiverName::String # msg receiver name (String) e.g. "agent-backend"
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receiverId::String # msg receiver id, nothing means everyone in the topic e.g. uuid4snakecase()
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replyTo::String # sender ask receiver to reply to this topic
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replyToMsgId::String # the message id this message is replying to
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BrokerURL::String # mqtt/NATS server address
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note::Dict{String, Any} # used to store additional info
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payloads::AbstractArray{msgPayload_v1} # multiple payload store here
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end
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# constructor
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function msgEnvelope_v1(
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correlationId::String = "";
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msgId::String = "",
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timestamp::String = "",
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sendTo::String = "",
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msgPurpose::String = "",
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senderName::String = "",
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senderId::String = "",
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receiverName::String = "",
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receiverId::String = "",
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replyTo::String = "",
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replyToMsgId::String = "",
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BrokerURL::String = DEFAULT_NATS_URL,
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note::Dict{String, Any} = Dict{String, Any}(),
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payloads::AbstractArray{msgPayload_v1} = msgPayload_v1[]
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)
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return msgEnvelope_v1(
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correlationId,
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msgId,
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timestamp,
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sendTo,
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msgPurpose,
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senderName,
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senderId,
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receiverName,
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receiverId,
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replyTo,
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replyToMsgId,
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BrokerURL,
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note,
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payloads
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)
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end
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