Code snippet to extract answers from typeform webhook payload

extract_and_transform.js

const extractValue = (tfAnswer) => {
  switch (tfAnswer.type) {
    case "choices":
      if (tfAnswer.choices) {
        // Multiple choices
        let labels = tfAnswer.choices.labels || [];
        if (tfAnswer.choices.other) {
          labels.push(tfAnswer.choices.other);
        }
        return labels; // Return an array of selected labels
      }
      break; // Break is not strictly necessary after a return but can be used for consistency
    case "choice":
      if (Object.keys(tfAnswer.choice).length > 1) {
        // Single choice
        return tfAnswer.choice.other
          ? tfAnswer.choice.other.toString()
          : tfAnswer.choice.label.toString(); // Return the selected label
      }
      break;
    case "dropdown":
      return tfAnswer.text;
      break;
    default:
      // For any unhandled types, return null or an appropriate default value
      return tfAnswer[tfAnswer.type];
  }
};

const organizeAnswers = (form_response) => {
  // Step 1: Create a mapping of field ID to ref
  const fieldIdToRefMap = form_response.definition.fields.reduce(
    (acc, field) => {
      acc[field.id] = field.ref;
      return acc;
    },
    {}
  );

  // Step 2: Map each answer to its corresponding ref
  const answersRefValueMap = form_response.answers.reduce((acc, answer) => {
    const ref = fieldIdToRefMap[answer.field.id];
    const value = extractValue(answer);
    acc[`${ref}`] = value; // Using $ref as key
    return acc;
  }, {});
  return answersRefValueMap;
};


/*
const answers = organizeAnswers(form_response)


answers = {
  question_ref: "answer to question 1",
  another_q_ref: "answer to question 2"
...
}
*/