feat(engine): ✨ Add {{state}} to body to get form state

apps/builder/components/editor/preview/PreviewDrawer.tsx

@@ -62,6 +62,9 @@ export const PreviewDrawer = () => {
       if (event.data.typebotInfo) {
         toast({ description: event.data.typebotInfo })
       }
+      if (event.data.typebotError) {
+        toast({ description: event.data.typebotError, status: 'error' })
+      }
     }
     window.addEventListener('message', onMessageFromBot)
     return () => {

apps/viewer/pages/api/typebots/[typebotId]/blocks/[blockId]/steps/[stepId]/subscribeWebhook.ts

@@ -1,7 +1,7 @@
 import { withSentry } from '@sentry/nextjs'
 import { Prisma } from 'db'
 import prisma from 'libs/prisma'
-import { IntegrationStepType, Typebot } from 'models'
+import { HttpMethod, IntegrationStepType, Typebot } from 'models'
 import { NextApiRequest, NextApiResponse } from 'next'
 import { authenticateUser } from 'services/api/utils'
 import { methodNotAllowed } from 'utils'
@@ -47,7 +47,15 @@ const addUrlToWebhookStep = (
     steps: b.steps.map((s) => {
       if (s.id === stepId) {
         if (s.type !== IntegrationStepType.WEBHOOK) throw new Error()
-        return { ...s, webhook: { ...s.webhook, url } }
+        return {
+          ...s,
+          webhook: {
+            ...s.webhook,
+            url,
+            method: HttpMethod.POST,
+            body: '{{state}}',
+          },
+        }
       }
       return s
     }),

packages/bot-engine/src/components/ChatBlock/ChatBlock.tsx

@@ -16,6 +16,7 @@ import { executeLogic } from 'services/logic'
 import { executeIntegration } from 'services/integration'
 import { parseRetryStep, stepCanBeRetried } from 'services/inputs'
 import { parseVariables } from 'index'
+import { useAnswers } from 'contexts/AnswersContext'
 
 type ChatBlockProps = {
   steps: PublicStep[]
@@ -32,6 +33,7 @@ export const ChatBlock = ({
 }: ChatBlockProps) => {
   const { typebot, updateVariableValue, createEdge, apiHost, isPreview } =
     useTypebot()
+  const { resultValues } = useAnswers()
   const [displayedSteps, setDisplayedSteps] = useState<PublicStep[]>([])
 
   useEffect(() => {
@@ -68,6 +70,8 @@ export const ChatBlock = ({
           variables: typebot.variables,
           isPreview,
           updateVariableValue,
+          resultValues,
+          blocks: typebot.blocks,
         },
       })
       nextEdgeId ? onBlockEnd(nextEdgeId) : displayNextStep()

packages/bot-engine/src/components/ConversationContainer.tsx

@@ -30,7 +30,10 @@ export const ConversationContainer = ({
     { block: PublicBlock; startStepIndex: number }[]
   >([])
   const [localAnswer, setLocalAnswer] = useState<Answer | undefined>()
-  const { answers } = useAnswers()
+  const {
+    resultValues: { answers },
+    setPrefilledVariables,
+  } = useAnswers()
   const bottomAnchor = useRef<HTMLDivElement | null>(null)
   const scrollableContainer = useRef<HTMLDivElement | null>(null)
 
@@ -51,7 +54,10 @@ export const ConversationContainer = ({
 
   useEffect(() => {
     const prefilledVariables = injectUrlParamsIntoVariables()
-    if (onVariablesPrefilled) onVariablesPrefilled(prefilledVariables)
+    if (onVariablesPrefilled) {
+      onVariablesPrefilled(prefilledVariables)
+      setPrefilledVariables(prefilledVariables)
+    }
     displayNextBlock(typebot.blocks[0].steps[0].outgoingEdgeId)
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, [])

packages/bot-engine/src/contexts/AnswersContext.tsx

@@ -1,24 +1,43 @@
-import { Answer } from 'models'
+import { Answer, ResultWithAnswers, VariableWithValue } from 'models'
 import React, { createContext, ReactNode, useContext, useState } from 'react'
 
+export type ResultValues = Pick<
+  ResultWithAnswers,
+  'answers' | 'createdAt' | 'prefilledVariables'
+>
 const answersContext = createContext<{
-  answers: Answer[]
+  resultValues: ResultValues
   addAnswer: (answer: Answer) => void
+  setPrefilledVariables: (variables: VariableWithValue[]) => void
   // eslint-disable-next-line @typescript-eslint/ban-ts-comment
   //@ts-ignore
 }>({})
 
 export const AnswersContext = ({ children }: { children: ReactNode }) => {
-  const [answers, setAnswers] = useState<Answer[]>([])
+  const [resultValues, setResultValues] = useState<ResultValues>({
+    answers: [],
+    prefilledVariables: [],
+    createdAt: new Date().toISOString(),
+  })
 
   const addAnswer = (answer: Answer) =>
-    setAnswers((answers) => [...answers, answer])
+    setResultValues((resultValues) => ({
+      ...resultValues,
+      answers: [...resultValues.answers, answer],
+    }))
+
+  const setPrefilledVariables = (variables: VariableWithValue[]) =>
+    setResultValues((resultValues) => ({
+      ...resultValues,
+      prefilledVariables: variables,
+    }))
 
   return (
     <answersContext.Provider
       value={{
-        answers,
+        resultValues,
         addAnswer,
+        setPrefilledVariables,
       }}
     >
       {children}

packages/bot-engine/src/services/integration.ts

@@ -1,3 +1,4 @@
+import { ResultValues } from 'contexts/AnswersContext'
 import {
   IntegrationStep,
   IntegrationStepType,
@@ -11,11 +12,12 @@ import {
   GoogleAnalyticsStep,
   WebhookStep,
   SendEmailStep,
+  PublicBlock,
 } from 'models'
 import { stringify } from 'qs'
-import { sendRequest } from 'utils'
+import { parseAnswers, sendRequest } from 'utils'
 import { sendGaEvent } from '../../lib/gtag'
-import { sendInfoMessage } from './postMessage'
+import { sendErrorMessage, sendInfoMessage } from './postMessage'
 import { parseVariables, parseVariablesInObject } from './variable'
 
 const safeEval = eval
@@ -27,8 +29,11 @@ type IntegrationContext = {
   stepId: string
   isPreview: boolean
   variables: Variable[]
+  resultValues: ResultValues
+  blocks: PublicBlock[]
   updateVariableValue: (variableId: string, value: string) => void
 }
+
 export const executeIntegration = ({
   step,
   context,
@@ -179,7 +184,7 @@ const executeWebhook = async (
 
 const sendEmail = async (
   step: SendEmailStep,
-  { variables, apiHost, isPreview }: IntegrationContext
+  { variables, apiHost, isPreview, resultValues, blocks }: IntegrationContext
 ) => {
   if (isPreview) sendInfoMessage('Emails are not sent in preview mode')
   if (isPreview) return step.outgoingEdgeId
@@ -191,11 +196,15 @@ const sendEmail = async (
       credentialsId: options.credentialsId,
       recipients: options.recipients.map(parseVariables(variables)),
       subject: parseVariables(variables)(options.subject ?? ''),
-      body: parseVariables(variables)(options.body ?? ''),
+      body:
+        options.body === '{{state}}'
+          ? parseAnswers({ variables, blocks })(resultValues)
+          : parseVariables(variables)(options.body ?? ''),
       cc: (options.cc ?? []).map(parseVariables(variables)),
       bcc: (options.bcc ?? []).map(parseVariables(variables)),
     },
   })
   console.error(error)
+  if (isPreview && error) sendErrorMessage(`Webhook failed: ${error.message}`)
   return step.outgoingEdgeId
 }

packages/bot-engine/src/services/postMessage.ts

@@ -1,3 +1,7 @@
 export const sendInfoMessage = (typebotInfo: string) => {
   parent.postMessage({ typebotInfo })
 }
+
+export const sendErrorMessage = (typebotError: string) => {
+  parent.postMessage({ typebotError })
+}

packages/utils/src/apiUtils.ts

@@ -1,4 +1,11 @@
-import { Typebot, Answer, VariableWithValue, ResultWithAnswers } from 'models'
+import {
+  Typebot,
+  Answer,
+  VariableWithValue,
+  ResultWithAnswers,
+  PublicTypebot,
+  Block,
+} from 'models'
 import { NextApiRequest, NextApiResponse } from 'next'
 import { byId, isDefined } from '.'
 
@@ -24,17 +31,27 @@ export const initMiddleware =
     })
 
 export const parseAnswers =
-  ({ blocks, variables }: Pick<Typebot, 'blocks' | 'variables'>) =>
-  (result: ResultWithAnswers) => ({
-    submittedAt: result.createdAt,
-    ...[...result.answers, ...result.prefilledVariables].reduce<{
+  ({
+    blocks,
+    variables,
+  }: Pick<Typebot | PublicTypebot, 'blocks' | 'variables'>) =>
+  ({
+    createdAt,
+    answers,
+    prefilledVariables,
+  }: Pick<
+    ResultWithAnswers,
+    'createdAt' | 'answers' | 'prefilledVariables'
+  >) => ({
+    submittedAt: createdAt,
+    ...[...answers, ...prefilledVariables].reduce<{
       [key: string]: string
     }>((o, answerOrVariable) => {
       if ('blockId' in answerOrVariable) {
         const answer = answerOrVariable as Answer
         const key = answer.variableId
           ? variables.find(byId(answer.variableId))?.name
-          : blocks.find(byId(answer.blockId))?.title
+          : (blocks as Block[]).find(byId(answer.blockId))?.title
         if (!key) return o
         return {
           ...o,