fetching issue in graphql-gun

[siddhudhangar]

i am trying to fetch the data from gun db with the help of graphql-gun. but i got zero result from gundb. i referred following url to query gun db i.e https://github.com/brysgo/graphql-gun. i tested with react and without react but still same problem occurred. I tried below code

const graphqlGun = require('graphql-gun');
const Gun = require('gun');
const gql = require('graphql-tag')

const gun = Gun();

const fish = gun.get('fish');
fish.put({red: {name: 'Frank'}});
fish.put({blue: {name: 'John'}});
const friends = fish.get('friends');
const dori = fish.get('dori')
const martin = fish.get('martin')
const nemo = fish.get('nemo')
dori.put({ name: 'Dori', favoriteColor: 'blue' });
martin.put({ name: 'Martin', favoriteColor: 'orange' });
nemo.put({ name: 'Nemo', favoriteColor: 'gold' });
friends.set(dori);
friends.set(martin);
friends.set(nemo);

const myQuery = gql`{
fish {
red {
name
}

blue {
  _chain
}

friends(type: Set) {
  name
  favoriteColor
}

}
}`;

graphqlGun(myQuery, gun).then(function(results) {
console.log('results: ', results);
});

Expected Output:
{
fish: {
red: {
name: 'Frank' // the name you set on the red fish
},
blue: {
_chain: <Gun.chain> // reference to gun chain at blue node
},
friends: [
{ name: 'Dori', favoriteColor: 'blue' },
{ name: 'Martin', favoriteColor: 'orange' },
{ name: 'Nemo', favoriteColor: 'gold' }
]
}
}

but i got empty results from gundb

{
fish: {
red: { },
blue: { },
friends: [ ]
}
}

i ran above program using node i.e node test.js
so can anybody help me to how to fetch the data of gundb throgh graphql-gun basically i wanted to a query to fetch the gundb data.

[siddhudhangar]

var retrievedData = localStorage.getItem("gun/");
var jsonparsedata = JSON.parse(retrievedData)
const get_messages = (input) => Object.keys(jsonparsedata)
.map(key => ({key, val: jsonparsedata[key]}))
.filter(each_string => each_string.key.length < 21)
.filter(each => jsonparsedata[each.key].hasOwnProperty('is_a') && jsonparsedata[each.key]["is_a"].endsWith("_message") && jsonparsedata[each.key] !=null)

i have written a above code in reactjs to fetch all messages from gundb, which is stored in browser's internal storage. so is it a right way to query gundb through reactjs ?

[brysgo]

Hey @siddhudhangar - I'd be happy to help you, do you think there is any way you could add a failing test for your case, it would be greatly appreciated.

Your expectations seem correct, so if it is happening as you say then we should try and find the bug.

I will also try and reproduce it and create a PR if I do.

[brysgo]

@siddhudhangar - I have a theory, have you tried passing a root scope to graphql gun?

For example:

const root = gun.get("someRootScope");
const fish = root.get('fish');
...
graphqlGun(myQuery, root).then(function(results) {
console.log('results: ', results);
});

[brysgo]

Hey @siddhudhangar - I wrote a test for the bug you outlined and it passes for me, maybe you can iterate on it to show how it is not working for you.

https://github.com/brysgo/graphql-gun/pull/32/files

[siddhudhangar]

I ran following command in command prompt
yarn test

All the test cases are passed successfully.
but when i ran same program with the help of node command i.e node test.js.
it gives me an empty results.

what i did, i just copy below code in test.js file.

const graphqlGun = require('graphql-gun');
const Gun = require('gun');
const gql = require('graphql-tag')

const gun = Gun();

const fish = gun.get('fish');
fish.put({red: {name: 'Frank'}});
fish.put({blue: {name: 'John'}});
const friends = fish.get('friends');
const dori = fish.get('dori')
const martin = fish.get('martin')
const nemo = fish.get('nemo')
dori.put({ name: 'Dori', favoriteColor: 'blue' });
martin.put({ name: 'Martin', favoriteColor: 'orange' });
nemo.put({ name: 'Nemo', favoriteColor: 'gold' });
friends.set(dori);
friends.set(martin);
friends.set(nemo);

const myQuery = gql`{
fish {
red {
name
}

blue {
  _chain
}

friends(type: Set) {
  name
  favoriteColor
}

}
}`;
graphqlGun(myQuery, gun).then(function(results) {
console.log('results: ', results);
});

and simply i ran test.js file with help of node i.e node test.js then it gave me following result:

Hello wonderful person! :) Thanks for using GUN, feel free to ask for help on https://gitter.im/amark/gun and ask StackOverflow questions tagged with 'gun'!
results: { fish: { red: {}, blue: { _chain: [Gun] }, friends: [] } }

am i making any mistake here? kindly check and let me know.

[siddhudhangar]

i did some changes in above js code i.e i replaced const gun = Gun(); to const gun = Gun({ file: 'db/data.json', radisk: false, localStorage: true }); now all data is stored in data.json file.
Now i am getting expected output but in friends list , it shows objects.

{
fish: {
red: {
name: 'Frank' // the name you set on the red fish
},
blue: {
_chain: <Gun.chain> // reference to gun chain at blue node
},
friends: [
[ Object],
[ Object],
[ Object]
]
}
}

[amark]

I haven't been able to read anything on this yet...

But your last post seems to indicate that RAD (radisk) is failing?

RAD is the most unreliable part of the stack, currently, and it seems to be causing problems everywhere else :( :( :( :( I need to get it fixed. And want to confirm that switching AWAY from RAD did fix your issue?

[siddhudhangar]

we are developing one decentralized application which uses browsers localstorage as a database and that data will sync all other connected peer's. so all connected peers have a same gun db data. when i used file system as storage engine, i got expected output.

In graphql-gun github page, there are only few query example's they have given. suppose i want to sort fetched data accordingly asc or desc order and i want to fetch the data which is created_by "siddhu". Is it possible to use AND ,OR ,SORT etc operation in graphql-gun. I shared some sample json data for your reference.

{
"f8a07a05-0e6c-4690-9e10-73d71ef38a24_NODE_TYPE": {
"_": {
"#": "f8a07a05-0e6c-4690-9e10-73d71ef38a24_NODE_TYPE",
">": {
"created_by": 1552412406862,
"name": 1552412406862,
"content": 1552412406862
}
},
"created_by": "admin",
"name": "NODE_TYPE",
"content": "NODE_TYPE",
"created_at": "3/12/2019, 1:16:04 PM"

},
"571e521a-d3e6-4619-9383-9f63c1832ff1_MESSAGE": {
"": {
"#": "571e521a-d3e6-4619-9383-9f63c1832ff1_MESSAGE",
">": {
"created_by": 1552412654541,
"name": 1552412654541,
"content": 1552412654541,
"is_a": 1552412654546
}
},
"created_by": "admin",
"name": "MESSAGE",
"content": "MESSAGE",
"created_at": "3/12/2019, 1:18:04 PM",
"is_a": {
"#": "f8a07a05-0e6c-4690-9e10-73d71ef38a24_NODE_TYPE"
}
},
"c690738c-5f9f-4434-b357-aa28a0cc2c85_my_first_post": {
"": {
"#": "c690738c-5f9f-4434-b357-aa28a0cc2c85_my_first_post",
">": {
"created_by": 1552412740523,
"name": 1552412740523,
"content": 1552412740523,
"is_a": 1552412740528
}
},
"created_by": "siddhu",
"name": "my first post",
"content": "my first post",
"created_at": "3/12/2019, 1:19:04 PM",
"is_a": {
"#": "571e521a-d3e6-4619-9383-9f63c1832ff1_MESSAGE"
}
},
"d4adc79b-f1bc-4632-a4f7-736d3f65baa3_my_second_post": {
"_": {
"#": "d4adc79b-f1bc-4632-a4f7-736d3f65baa3_my_second_post",
">": {
"created_by": 1552412815630,
"name": 1552412815630,
"content": 1552412815630,
"is_a": 1552412815635
}
},
"created_by": "siddhu",
"name": "my second post",
"content": "my second post",
"created_at": "3/12/2019, 1:20:04 PM",
"is_a": {
"#": "571e521a-d3e6-4619-9383-9f63c1832ff1_MESSAGE"
}
}
}

[siddhudhangar]

i installed gun-file as per instruction they given in following url i.e https://github.com/d3x0r/gun-file.
but i could not fetch gun db data using graph-ql. it gave me empty results. one file is created which is yourData.json. i attached one screenshot for your reference.

[brysgo]

@siddhudhangar - I am willing to entertain adding query features. Just open a separate issue and we can talk about it!