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75 lines
1.6 KiB
Markdown
75 lines
1.6 KiB
Markdown
# Binärprotokoll API
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Niedrigstufiges Wire-Protokoll für hochperformante Client-Verbindungen.
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## Nachrichtenformat
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Alle Nachrichten verwenden Big-Endian-Byte-Reihenfolge:
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```
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┌────────┬────────┬────────┬────────┬─────────────┐
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│ Length │ Type │ Seq │ Status │ Payload │
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│ 4 bytes│ 1 byte │ 2 bytes│ 1 byte │ N bytes │
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└────────┴────────┴────────┴────────┴─────────────┘
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```
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## Nachrichtentypen
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### Query (0x01)
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```nim
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let msg = makeQueryMessage(seq, "SELECT * FROM users")
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```
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### Insert (0x02)
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```nim
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let msg = makeInsertMessage(seq, "users", data)
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```
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### Update (0x03)
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```nim
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let msg = makeUpdateMessage(seq, "users", updates, where)
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```
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### Delete (0x04)
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```nim
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let msg = makeDeleteMessage(seq, "users", where)
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```
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### Ready (0x05)
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```nim
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let msg = makeReadyMessage(seq)
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```
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### Error (0x06)
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```nim
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let msg = makeErrorMessage(seq, code, message)
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```
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## Antwortcodes
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| Code | Name | Beschreibung |
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|------|------|-------------|
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| 0x00 | OK | Erfolg |
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| 0x01 | ERROR | Allgemeiner Fehler |
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| 0x02 | AUTH_REQUIRED | Authentifizierung erforderlich |
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| 0x03 | INVALID_QUERY | Abfragesyntaxfehler |
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| 0x04 | NOT_FOUND | Ressource nicht gefunden |
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## Serialisierung
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```nim
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import barabadb/protocol/wire
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# Wert serialisieren
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let bytes = serializeValue(Value(kind: vkString, strVal: "test"))
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# Wert deserialisieren
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let value = deserializeValue(bytes)
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```
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