@copilotkit/runtime
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{"version":3,"file":"langserve.cjs","names":[],"sources":["../../../src/service-adapters/langchain/langserve.ts"],"sourcesContent":["import { Parameter, Action } from \"@copilotkit/shared\";\n\nexport interface RemoteChainParameters {\n name: string;\n description: string;\n chainUrl: string;\n parameters?: Parameter[];\n parameterType?: \"single\" | \"multi\";\n}\n\nexport class RemoteChain {\n name: string;\n description: string;\n chainUrl: string;\n parameters?: Parameter[];\n parameterType: \"single\" | \"multi\";\n\n constructor(options: RemoteChainParameters) {\n this.name = options.name;\n this.description = options.description;\n this.chainUrl = options.chainUrl;\n this.parameters = options.parameters;\n this.parameterType = options.parameterType || \"multi\";\n }\n\n async toAction(): Promise<Action<any>> {\n if (!this.parameters) {\n await this.inferLangServeParameters();\n }\n\n return {\n name: this.name,\n description: this.description,\n parameters: this.parameters!,\n handler: async (args: any) => {\n // eslint-disable-next-line @typescript-eslint/no-var-requires\n const { RemoteRunnable } = require(\"langchain/runnables/remote\");\n const runnable = new RemoteRunnable({ url: this.chainUrl });\n let input: any;\n if (this.parameterType === \"single\") {\n input = args[Object.keys(args)[0]];\n } else {\n input = args;\n }\n return await runnable.invoke(input);\n },\n };\n }\n\n async inferLangServeParameters() {\n const supportedTypes = [\"string\", \"number\", \"boolean\"];\n\n let schemaUrl = this.chainUrl.replace(/\\/+$/, \"\") + \"/input_schema\";\n let schema = await fetch(schemaUrl)\n .then((res) => res.json())\n .catch(() => {\n throw new Error(\"Failed to fetch langserve schema at \" + schemaUrl);\n });\n // for now, don't use json schema, just do a simple conversion\n\n if (supportedTypes.includes(schema.type)) {\n this.parameterType = \"single\";\n this.parameters = [\n {\n name: \"input\",\n type: schema.type,\n description: \"The input to the chain\",\n },\n ];\n } else if (schema.type === \"object\") {\n this.parameterType = \"multi\";\n this.parameters = Object.keys(schema.properties).map((key) => {\n let property = schema.properties[key];\n if (!supportedTypes.includes(property.type)) {\n throw new Error(\"Unsupported schema type\");\n }\n return {\n name: key,\n type: property.type,\n description: property.description || \"\",\n required: schema.required?.includes(key) || false,\n };\n });\n } else {\n throw new Error(\"Unsupported schema type\");\n }\n }\n}\n"],"mappings":";;;AAUA,IAAa,cAAb,MAAyB;CAOvB,YAAY,SAAgC;AAC1C,OAAK,OAAO,QAAQ;AACpB,OAAK,cAAc,QAAQ;AAC3B,OAAK,WAAW,QAAQ;AACxB,OAAK,aAAa,QAAQ;AAC1B,OAAK,gBAAgB,QAAQ,iBAAiB;;CAGhD,MAAM,WAAiC;AACrC,MAAI,CAAC,KAAK,WACR,OAAM,KAAK,0BAA0B;AAGvC,SAAO;GACL,MAAM,KAAK;GACX,aAAa,KAAK;GAClB,YAAY,KAAK;GACjB,SAAS,OAAO,SAAc;IAE5B,MAAM,EAAE,mBAAmB,QAAQ,6BAA6B;IAChE,MAAM,WAAW,IAAI,eAAe,EAAE,KAAK,KAAK,UAAU,CAAC;IAC3D,IAAI;AACJ,QAAI,KAAK,kBAAkB,SACzB,SAAQ,KAAK,OAAO,KAAK,KAAK,CAAC;QAE/B,SAAQ;AAEV,WAAO,MAAM,SAAS,OAAO,MAAM;;GAEtC;;CAGH,MAAM,2BAA2B;EAC/B,MAAM,iBAAiB;GAAC;GAAU;GAAU;GAAU;EAEtD,IAAI,YAAY,KAAK,SAAS,QAAQ,QAAQ,GAAG,GAAG;EACpD,IAAI,SAAS,MAAM,MAAM,UAAU,CAChC,MAAM,QAAQ,IAAI,MAAM,CAAC,CACzB,YAAY;AACX,SAAM,IAAI,MAAM,yCAAyC,UAAU;IACnE;AAGJ,MAAI,eAAe,SAAS,OAAO,KAAK,EAAE;AACxC,QAAK,gBAAgB;AACrB,QAAK,aAAa,CAChB;IACE,MAAM;IACN,MAAM,OAAO;IACb,aAAa;IACd,CACF;aACQ,OAAO,SAAS,UAAU;AACnC,QAAK,gBAAgB;AACrB,QAAK,aAAa,OAAO,KAAK,OAAO,WAAW,CAAC,KAAK,QAAQ;IAC5D,IAAI,WAAW,OAAO,WAAW;AACjC,QAAI,CAAC,eAAe,SAAS,SAAS,KAAK,CACzC,OAAM,IAAI,MAAM,0BAA0B;AAE5C,WAAO;KACL,MAAM;KACN,MAAM,SAAS;KACf,aAAa,SAAS,eAAe;KACrC,UAAU,OAAO,UAAU,SAAS,IAAI,IAAI;KAC7C;KACD;QAEF,OAAM,IAAI,MAAM,0BAA0B"}