CODEWITHSUNDEEP
jsonfirebasegoogle-cloud-firestorejson.net
Bhavin Panara
Bhavin Panara

Reputation: 448

How to convert Firestore REST API response to normal json?

I am trying to use Firestore from Unity by using REST API of it. Everything is working as expected till now.

When reading document from Firestore, it returns json in different format. Like this.

{
          "name": "projects/firestore-unity-demo-87998/databases/(default)/documents/test/panara",
          "fields": {
            "health": {
              "integerValue": "1008"
            },
            "name": {
              "stringValue": "Bhavin Panara"
            },
            "birthday": {
              "timestampValue": "1992-10-08T04:40:10Z"
            },
            "alive": {
              "booleanValue": true
            },
            "floatingPointNumber": {
              "testFloat": 100.1
            }
          },
          "createTime": "2019-07-30T13:27:09.599079Z",
          "updateTime": "2019-07-31T11:41:10.637712Z"
}

How can I convert this kind of json to a normal json like this.

{
  "health":1008,
  "name":"Bhavin Panara",
  "birthday" : "1992-10-08T04:40:10Z",
  "alive":true,
  "floatingPointNumber":100.1
}

Upvotes: 3

Views: 2843

Answers (2)

Konstantin Tarkus
Konstantin Tarkus

Reputation: 38428

function toValue(field) {
  return "integerValue" in field
    ? Number(field.integerValue)
    : "doubleValue" in field
    ? Number(field.doubleValue)
    : "arrayValue" in field
    ? field.arrayValue.values.map(toValue)
    : "mapValue" in field
    ? toJSON(field.mapValue)
    : Object.entries(field)[0][1];
}

function toJSON(doc) {
  return Object.fromEntries(
    Object.entries(doc.fields ?? {}).map(([key, field]) => [key, toValue(field)])
  );
}

Upvotes: 0

joseluismurillorios
joseluismurillorios

Reputation: 1014

I used the code from firestore-parser


const getFireStoreProp = (value) => {
  const props = {
    arrayValue: 1,
    bytesValue: 1,
    booleanValue: 1,
    doubleValue: 1,
    geoPointValue: 1,
    integerValue: 1,
    mapValue: 1,
    nullValue: 1,
    referenceValue: 1,
    stringValue: 1,
    timestampValue: 1,
  };
  return Object.keys(value).find(k => props[k] === 1);
};

export const fireStoreParser = (value) => {
  let newVal = value;
  // You can use this part to avoid mutating original values
  //   let newVal;
  //   if (typeof value === 'object') {
  //     newVal = { ...value };
  //   } else if (value instanceof Array) {
  //     newVal = value.slice(0);
  //   } else {
  //     newVal = value;
  //   }
  const prop = getFireStoreProp(newVal);
  if (prop === 'doubleValue' || prop === 'integerValue') {
    newVal = Number(newVal[prop]);
  } else if (prop === 'arrayValue') {
    newVal = ((newVal[prop] && newVal[prop].values) || []).map(v => fireStoreParser(v));
  } else if (prop === 'mapValue') {
    newVal = fireStoreParser((newVal[prop] && newVal[prop].fields) || {});
  } else if (prop === 'geoPointValue') {
    newVal = { latitude: 0, longitude: 0, ...newVal[prop] };
  } else if (prop) {
    newVal = newVal[prop];
  } else if (typeof newVal === 'object') {
    Object.keys(newVal).forEach((k) => { newVal[k] = fireStoreParser(newVal[k]); });
  }
  return newVal;
};

Upvotes: 4

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