Develop Reference

Solana check all spl token balances of a wallet

I'm using solana json rpc api to check a wallet's token balance from my javascript app. I have used the function for it like this
const getTokenBalance = async (walletAddress, tokenMintAddress) => {
const response = await axios({
url: `https://api.mainnet-beta.solana.com`,
method: "post",
headers: { "Content-Type": "application/json" },
data: {
jsonrpc: "2.0",
id: 1,
method: "getTokenAccountsByOwner",
params: [
walletAddress,
{
mint: tokenMintAddress,
},
{
encoding: "jsonParsed",
},
],
},
});
if (
Array.isArray(response?.data?.result?.value) &&
response?.data?.result?.value?.length > 0 &&
response?.data?.result?.value[0]?.account?.data?.parsed?.info?.tokenAmount
?.amount > 0
) {
return (
Number(
response?.data?.result?.value[0]?.account?.data?.parsed?.info
?.tokenAmount?.amount
) / 1000000000
);
} else {
return 0;
}
};
However I want to get all the token balance by one call instead of asking a token balance by giving a mint address for every token out there which makes my api respond like 10 minutes, is there any friendly way to do that?
I saw Covalent api can do it for checking ethereum wallet balance, wonder how they can do it

Most of the standard RPC accept batch requests, you should be able to send an array of all the requests you want, note that response will be an array as well.
// For example
const response = await axios({
url: `https://api.mainnet-beta.solana.com`,
method: "post",
headers: { "Content-Type": "application/json" },
data: [
{
jsonrpc: "2.0",
id: 1,
method: "getTokenAccountsByOwner",
params: [
walletAddress,
{
mint: tokenMintAddress,
},
{
encoding: "jsonParsed",
},
],
},
{
jsonrpc: "2.0",
id: 1,
method: "getTokenAccountsByOwner",
params: [
walletAddress2,
{
mint: tokenMintAddress2,
},
{
encoding: "jsonParsed",
},
],
},
]
});

As all tokens (that follow the standard) are "childs" of the Token Program you can get all with one RPC call :
curl https://api.mainnet-beta.solana.com -X POST -H "Content-Type:
application/json" -d ' {
"jsonrpc":"2.0",
"method":"getTokenAccountsByOwner",
"params": [
"walletAddress",
{
"programId": "TokenkegQfeZyiNwAJbNbGKPFXCWuBvf9Ss623VQ5DA"
},
{
"encoding": "jsonParsed"
}
],
"id":4
}

If u need to get a balance of ur own token u can used the json rpc api with the follow post.
curl https://api.devnet.solana.com/ -X POST -H "Content-Type: application/json" -d '
{
"jsonrpc": "2.0",
"id": 1,
"method": "getTokenAccountsByOwner",
"params": [
"uja3w9XG1g6DQSVT6YASK99FVmdVwXoHVoQEgtEJdLv",
{
"mint": "7TMzmUe9NknkeS3Nxcx6esocgyj8WdKyEMny9myDGDYJ"
},
{
"encoding": "jsonParsed"
}
]
}
'

Request parameters not read when calling Google Cloud Printing API

I'm trying to use the Google Cloud Printing API. I previously had problems relating to the sending of my request. After some json/stringifying experimentation, I no longer get that error. Instead, my API calls are unsuccessful according to the response sent back by the Google API. Here's what I'm doing:
// Ticket used for google cloud printing
const ticket = {
"version":"1.0",
"print":{
"color":{"vendor_id":"psk:Color","type":0},
"duplex":{"type":0},
"page_orientation":{"type":0},
"copies":{"copies":1},
"dpi":{"horizontal_dpi":1200,"vertical_dpi":1200},
"media_size":{"width_microns":80000,"height_microns":58000,"is_continuous_feed":false},
"collate":{"collate":true},
"vendor_ticket_item":[
//Printer specific settings here, from the capabilities:
{"id":"psk:JobInputBin","value":"ns0000:Tray3"},
{"id":"psk:PageICMRenderingIntent","value":"psk:Photographs"},
{"id":"psk:PageMediaType","value":"ns0000:Auto"},
{"id":"psk:JobOutputBin","value":"ns0000:Auto"},
//etc.
]
}
}
request({
"method": "POST",
"content-type" : "application/json",
"url": googlePrintUrl + "submit",
"headers": {
"Authorization": "OAuth " + googleAccessToken
},
"body" : {
"printerid": "39875g133-ae7d-76hg-65af-jhe5bc682404",
"ticket": JSON.stringify(ticket),
"title": "TEST PRINT",
"content": "test msg",
"contentType": "text/plain"
},
"json": true
}, function (error, res, body){
if (error) {
console.log("There was an error with Google Cloud Print");
console.log(error);
return;
}
console.log("The server responded with:", body);
});
this request results in this response from the server:
The server responded with: { success: false,
request:
{ time: '0',
params: {},
user: 'mytest#gmail.com',
users: [ 'mytest#gmail.com' ] },
errorCode: 3,
message: 'Printer Id required for this request.' }
As you can see, the params field is empty. This is strange because when I use Postman to do the same request, this field is filled with the params I sent in the API call. Here's how I successfully did it in Postman:
Which generated the server response:
{
"success": true,
"request": {
"time": "0",
"params": {
"ticket": [
"{\"version\":\"1.0\",\"print\":{\"color\":{\"vendor_id\":\"psk:Color\",\"type\":0},\"duplex\":{\"type\":0},\"page_orientation\":{\"type\":0},\"copies\":{\"copies\":1},\"dpi\":{\"horizontal_dpi\":600,\"vertical_dpi\":600},\"media_size\":{\"width_microns\":80000,\"height_microns\":58000,\"is_continuous_feed\":false},\"collate\":{\"collate\":true},\"vendor_ticket_item\":[{\"id\":\"psk:JobInputBin\",\"value\":\"ns0000:Tray3\"},{\"id\":\"psk:PageICMRenderingIntent\",\"value\":\"psk:Photographs\"},{\"id\":\"psk:PageMediaType\",\"value\":\"ns0000:Auto\"},{\"id\":\"psk:JobOutputBin\",\"value\":\"ns0000:Auto\"}]}}"
],
"printerid": [
"39875g133-ae7d-76hg-65af-jhe5bc682404"
],
"title": [
"TEST"
],
"contentType": [
"text/plain"
],
"content": [
"**** test"
]
},
"user": "mytest#gmail.com",
"users": [
"mytest#gmail.com"
]
},
"xsrf_token": "AIp06DhAZRSLW9GlHWQLKykbpU-5fYRqcA:1531484990909",
"message": "Print job added.",
"job": {
"ticketUrl": "https://www.google.com/cloudprint/ticket?jobid\u003df11043fe-3e00-d912-11dd-c859718a5575",
"printerName": "",
"errorCode": "",
"updateTime": "1531484993830",
"title": "**** TEST",
"message": "",
"ownerId": "mytest#gmail.com",
"tags": [
"^own"
],
"uiState": {
"summary": "QUEUED",
"progress": "Delivery attempts: 1"
},
"numberOfPages": 1,
"createTime": "1531484991068",
"semanticState": {
"delivery_attempts": 1,
"state": {
"type": "QUEUED"
},
"version": "1.0"
},
"printerid": "39875g133-ae7d-76hg-65af-jhe5bc682404",
"fileUrl": "https://www.google.com/cloudprint/download?id\u003df11043fe-3e00-d912-11dd-c859718a5575",
"id": "f11043fe-3e00-d912-11dd-c859718a5575",
"rasterUrl": "https://www.google.com/cloudprint/download?id\u003df11043fe-3e00-d912-11dd-c859718a5575\u0026forcepwg\u003d1",
"contentType": "application/pdf",
"status": "QUEUED"
}
}
This is a successful printing job, and all the parameters sent by me are sent back in the response object.
So where am I going wrong in my node.js code?

Postman sends payload (printerid, content, title, etc) in formData rather than body
Underneath the "SEND" button is a button "Code" that can generate functional NodeJS (and other) snippets like
var request = require("request");
var options = { method: 'POST',
url: 'https://www.google.com/cloudprint/submit',
headers:
{ 'cache-control': 'no-cache',
Connection: 'keep-alive',
'Content-Length': '769',
'Accept-Encoding': 'gzip, deflate',
Host: 'www.google.com',
'Cache-Control': 'no-cache',
'Content-Type': 'application/json',
Authorization: 'Bearer ya29.GlxWB5_vr8QmJw3DChvVyqpRhNJ2hsuVzwNTJoYRH6r2VVGTwDE3MLNAN8pjTB3-BDWtZeIDrCDcP5DwYGywM1vgb9VMPhoi806HrMpOpKAaKzrgiliojec6IB2Cwg',
'content-type': 'multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW' },
formData:
{ printerid: 'd936d368-7ea4-6f66-84fd-6d5a7a357318',
title: 'Document Title',
content: 'Hello World',
ticket: '{"version":"1.0","print":{"vendor_ticket_item":[],"color":{"type":"STANDARD_MONOCHROME"},"copies":{"copies":1}}}',
contentType: 'text/plain' } };
request(options, function (error, response, body) {
if (error) throw new Error(error);
console.log(body);
});

When timeout and when abort occur in $http.get?

AngularJS 1.6.6 has support for differentiation between XHR completion, error, abort, timeout, I have this code snippet which make a request to a url like below:
$http.get(url, {timeout: 1000})
.then(...)
.catch(function(error) {
console.log(error.xhrStatus) // could be abort, complete, error and timeout
});
When requesting my api takes more than 1 second the promise is rejected with xhrStatus of 'abort', I was wondering in what situation I will get 'timeout' and 'error' status texts?
Edit: It would be awesome if the answer provide the relevant server side code in Web Api

"timeout" will never occur as far as I can tell since the xhr in the $httpBackend never has a timeout property set instead angular uses it's own mechanism for aborting the xhr request if the timeout ms expires or the promise passed in resolves.
https://github.com/angular/angular.js/blob/master/src/ng/httpBackend.js#L165
"error" will occur if a request has been dispatched and the network connection has gone down
If a 500 or 200 comes back the status will be complete but angular will fire the success or error/catch handlers on the http promise depending on the status code.
Test result model (note I disconnected the network to get the result for test3.php, the test.html page loaded, then I disconnected the network before the setTimeout fired the get hence forcing the xhr.status to error)
{
"msg1": {
"data": {
"val": "test"
},
"status": 200,
"config": {
"method": "GET",
"transformRequest": [
null
],
"transformResponse": [
null
],
"jsonpCallbackParam": "callback",
"timeout": 1000,
"url": "test1.php",
"headers": {
"Accept": "application/json, text/plain, */*"
}
},
"statusText": "OK",
"xhrStatus": "complete"
},
"msg2": {
"data": null,
"status": -1,
"config": {
"method": "GET",
"transformRequest": [
null
],
"transformResponse": [
null
],
"jsonpCallbackParam": "callback",
"timeout": 1,
"url": "test2.php",
"headers": {
"Accept": "application/json, text/plain, */*"
}
},
"statusText": "",
"xhrStatus": "abort"
},
"msg3": {
"data": null,
"status": -1,
"config": {
"method": "GET",
"transformRequest": [
null
],
"transformResponse": [
null
],
"jsonpCallbackParam": "callback",
"url": "test3.php",
"headers": {
"Accept": "application/json, text/plain, */*"
}
},
"statusText": "",
"xhrStatus": "error"
},
"msg4": {
"data": "",
"status": 500,
"config": {
"method": "GET",
"transformRequest": [
null
],
"transformResponse": [
null
],
"jsonpCallbackParam": "callback",
"url": "test4.php",
"headers": {
"Accept": "application/json, text/plain, */*"
}
},
"statusText": "Internal Server Error",
"xhrStatus": "complete"
}
}
Test.html
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.6/angular.js"></script>
<script>
angular.module('myApp', [])
.controller('MyCtrl', function($http){
var url1 = "test1.php";
var url2 = "test2.php";
var url3 = "test3.php";
var url4 = "test4.php";
var ctrl = this;
ctrl.model={msg1:null, msg2:null, msg3:null, msg4:null}
$http.get(url1, {timeout: 1000})
.then(function(resp){
ctrl.model.msg1 = resp
})
.catch(function(error) {
ctrl.model.msg1 = error;
});
$http.get(url2, {timeout: 1})
.then(function(resp){
ctrl.model.msg2 = resp
})
.catch(function(error) {
ctrl.model.msg2 = error;
});
setTimeout(function(){
$http.get(url3)
.then(function(resp){
ctrl.model.msg3 = resp
})
.catch(function(error) {
ctrl.model.msg3 = error;
});
}, 2000);
$http.get(url4)
.then(function(resp){
ctrl.model.msg4 = resp
})
.catch(function(error) {
ctrl.model.msg4 = error;
});
});
</script>
</head>
<body ng-app="myApp" ng-controller="MyCtrl as myCtrl">
<pre>{{myCtrl.model|json}}</pre>
</body>
</html>
test1.php
<?php
echo "{\"val\":\"test\"}";
test2.php
<?php
sleep(10);
test3.php
<?php
sleep(1000);
test4.php
<?php
throw new Exception("Error");

Getting error while parsing json in react native

this is my json response
{
"sessid": "some_value",
"session_name": "some_vvalue",
"token": "some_vvalue",
"user": {
"uid": "12125",
"name": "some_vvalue",
"mail": "some_vvalue",
"theme": "",
"signature": "",
"signature_format": "filtered_html",
"created": "1486476553",
"access": "1489577945",
"login": 1489585116,
"status": "1",
"timezone": "Asia/Kolkata",
"language": "",
"picture": "0",
"data": false,
"roles": {
"2": "authenticated user"
},
"rdf_mapping": {
"rdftype": ["sioc:UserAccount"],
"name": {
"predicates": ["foaf:name"]
},
"homepage": {
"predicates": ["foaf:page"],
"type": "rel"
}
}
}
}
i just want to get first three values that is session_name,session_id and token, And i am getting this value during post request,here is my code for parsing.
async onPressLogin() {
try {
loaderHandler.showLoader("Please wait!!!");
let response = await fetch(
'http://some_url/api/user/login', {
method: 'POST',
headers: {
'Accept': 'application/json',
'Content-Type': 'application/json',
'X-CSRF-Token': this.state.token,
},
body: JSON.stringify({
username: this.state.name,
password: this.state.password,
})
});
let responseText = await response.text();
let responseJson = await response.json();
if (response.status >= 200 && response.status < 300){
await AsyncStorage.setItem(SESSION_TOKEN, responseJson.token);
await AsyncStorage.setItem(SESSION_NAME,responseJson.session_name);
await AsyncStorage.setItem(SESSION_ID,responseJson.sessid);
Alert.alert('Store Token', 'Session Token'+responseJson.token)
/// Alert.alert('Server response', responseJson)
loaderHandler.hideLoader();
Actions.Documents();
}
else {
loaderHandler.hideLoader();
let error = responseText;
Alert.alert('Login', error)
}
} catch(errors) {
loaderHandler.hideLoader();
Alert.alert('Login_server', errors)
loaderHandler.hideLoader();
}
}
I am trying to store these three values in async storage for further use. Please help me tried everything but could not solve the error. Let me know if you will need any other code. Thanks
This is the error which i am getting
TypeError: expected dynamic type'string',but had type'object'

Debugging Bad Request 400 error

I'm trying to return a list of flights from Google's QPX Express API, howver I'm stumped on a bad request response:
{ StatusCodeError: 400 - {"error":{"errors":[{"domain":"global","reason":"badRequest","message":"Invalid inputs: received empty request."}],"code":400,"message":"Invalid inputs: received empty request."}}
Is there something wrong with how I'm approaching the structure of the request? I'm using the request-promise library
const options = {
method: 'POST',
uri: 'https://www.googleapis.com/qpxExpress/v1/trips/search?key=XXXXXXXXXXXXXXX',
qs: {
"request": {
"passengers": {
"adultCount": 1 },
"slice": [{"origin": "BOS",
"destination": "LAX",
"date": "2017-03-01"
}]
}
},
json: true
}
request(options)
.then(function (response) {
console.log(response)
})
.catch(function (err) {
console.log(err)
})

I have solved the issue. The request needed to include the data in the body key with the content-type set to JSON.
This now returns data from the API as expected.
const options = {
method: 'POST',
uri: 'https://www.googleapis.com/qpxExpress/v1/trips/search?&key=XXXXXXXXXXXXXXXXXXXX',
body: {
"request": {
"passengers": {
"adultCount": "1"
},
"slice": [
{
"origin": "SFO",
"destination": "LAX",
"date": "2017-06-19"
}
],
"solutions": "1"
}
},
json: true
}
request(options)
.then(function (response) {
console.log(response.trips.tripOption[0].saleTotal)
})
.catch(function (err) {
console.log(err)
})

Check it:
const options = {
method: 'POST',
uri: 'https://www.googleapis.com/qpxExpress/v1/trips/search?key=XXXXXXXXXXXXXXX',
qs: {
"request": {
"passengers": {
"adultCount": 1 },
"slice": [{"origin": "BOS",
"destination": "LAX",
"date": "2017-03-01"
}]
}
},
json: true
};
request(options)
.then(function (response) {
console.log(response);
})
.catch(function (err) {
console.log(err);
});
You forgot to end the uri string. Also please don't forget the semicolons.
Edit:
Try:
request({
url: (your url here),
method: "POST",
json: requestData
},
where requestData will be your qs.