Method _call

packages/components/nodes/chains/ApiChain/postCore.ts:87–112

@ignore

(values: ChainValues, runManager?: CallbackManagerForChainRun)

    /** @ignore */
    async _call(values: ChainValues, runManager?: CallbackManagerForChainRun): Promise<ChainValues> {
        try {
            const question: string = values[this.inputKey]

            const api_url_body = await this.apiRequestChain.predict({ question, api_docs: this.apiDocs }, runManager?.getChild())

            const { url, data } = JSON.parse(api_url_body)

            const res = await secureFetch(url, {
                method: 'POST',
                headers: this.headers,
                body: JSON.stringify(data)
            })

            const api_response = await res.text()

            const answer = await this.apiAnswerChain.predict(
                { question, api_docs: this.apiDocs, api_url_body, api_response },
                runManager?.getChild()
            )

            return { [this.outputKey]: answer }
        } catch (error) {
            return { [this.outputKey]: error }
        }
    }

    _chainType() {
        return 'api_chain' as const