Hi I am new to swift please spare me.
I need to post to particular API but the api is not a fan of key value pair the api expect raw json as post data
I use this library here to make post request.
this is my code
func postItem(itemname: String, itemnumber: Int, itemcode:String, url:String, baseURL:String, completion: (result: Dictionary<String, AnyObject>) -> ()){
var dict: Dictionary<String, AnyObject>!
var params: Dictionary<String,AnyObject> = ["parentItem": ["itemname":itemname,"itemnumber":itemnumber,"itemcode":code]]
let data = NSJSONSerialization.dataWithJSONObject(params, options: NSJSONWritingOptions.PrettyPrinted, error: nil)
let string = NSString(data: data!, encoding: NSUTF8StringEncoding)
var request = HTTPTask()
request.requestSerializer = JSONRequestSerializer()
request.requestSerializer.headers[headerKey] = getToken() //example of adding a header value
request.POST(url, parameters: params, success: {(response: HTTPResponse) in
if response.responseObject != nil {
let data = response.responseObject as NSData
var error: NSError?
dict = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: &error) as Dictionary<String, AnyObject>;
completion(result: dict)
}
},failure: {(error: NSError, response: HTTPResponse?) in
dict = ["error" : "error" ]
completion(result: dict)
})
}
i need to pass this kind of raw json in api
eg. {"parentItem": {"itemname":"Cocoa","itemnumber":123,"itemcode":"cocoa-12-A"}}
but when I println my params because it is dictionary it generate something like
["parentItem": ["itemname"="Cocoa"; "itemnumber"=123; "itemcode"="cocoa-12-A"]]
I just couldn't convert the params to JSON because the library I'm using is expecting dictionary and I'm having a hard time creating my own class.
could anyone help me? any comments and suggestion would do. Thanks in advance.
Why don't use Alamofire framework ? It's pretty good and sends standard json
Related
extern crate openweather;
use openweather::LocationSpecifier;
static API_KEY: &str = "e85e0a3142231dab28a2611888e48f22";
fn main() {
let loc = LocationSpecifier::Coordinates {
lat: 24.87,
lon: 67.03,
};
let weather = openweather::get_current_weather(loc, API_KEY).unwrap();
print!(
"Right now in Minneapolis, MN it is {}K",
weather.main.humidity
);
}
error : thread 'main' panicked at 'called Result::unwrap() on an
Err value: ErrorReport { cod: 0, message: "Got unexpected response:
\"{\\"coord\\":{\\"lon\\":67.03,\\"lat\\":24.87},\\"weather\\":[{\\"id\\":803,\\"main\\":\\"Clouds\\",\\"description\\":\\"broken
clouds\\",\\"icon\\":\\"04n\\"}],\\"base\\":\\"stations\\",\\"main\\":{\\"temp\\":294.15,\\"pressure\\":1018,\\"humidity\\":60,\\"temp_min\\":294.15,\\"temp_max\\":294.15},\\"visibility\\":6000,\\"wind\\":{\\"speed\\":5.1,\\"deg\\":30},\\"clouds\\":{\\"all\\":70},\\"dt\\":1574012543,\\"sys\\":{\\"type\\":1,\\"id\\":7576,\\"country\\":\\"PK\\",\\"sunrise\\":1573955364,\\"sunset\\":1573994659},\\"timezone\\":18000,\\"id\\":1174872,\\"name\\":\\"Karachi\\",\\"cod\\":200}\""
}
The issue is a JSON parsing error due to the deserialized struct not matching OpenWeather's JSON, perhaps the API recently added this? With your example, the OpenWeatherCurrent struct is missing timezone.
But it looks like there is an open PR that will fix this, you can test it by doing the following:
Change your Cargo.toml dependency to openweather = { git = "https://github.com/caemor/openweather" }.
The PR author has also updated the get_current_weather signature so you'll need to change lines 2, 10 to the following:
use openweather::{LocationSpecifier, Settings};
let weather = openweather::get_current_weather(&loc, API_KEY, &Settings::default()).unwrap();
Getting error while calling Alamofire request method in the latest version(4.0.0).
The syntax is:
Alamofire.request(urlString,method: .post, parameters: requestParams, encoding: .JSON, headers: [:])
the type of requestParam is [String:Any]
I got the issue, I have to use JSONEncoding.default instead of .JSON, so the new syntax is
Alamofire.request(urlString,method: .post, parameters: requestParams, encoding: JSONEncoding.default, headers: [:])
I can only refer you to: https://github.com/Alamofire/Alamofire/issues/1508#issuecomment-246207682
Basically, if one of your parameters is of the wrong type, the swift compiler will assume you're using request(urlRequest:URLRequestConvertible) and then, the method is an extra argument
Go over that parameters again and make sure all is of correct type (Parameters?, ParameterEncoding, and HTTPHeaders)
I was having the same issue, the problem is at parameters type, it should be of type [String: Any]. After I made this change, it worked for me.
Alamofire.request(youUrl, method: .post, parameters: param as? [String: Any], encoding: JSONEncoding.default, headers: [:])
.responseJSON { response in
It means that some of the parameters type are wrong, check that you are sending these values:
url: String
method: HTTPMethod (E.g: .post)
parameters: [String:Any]
encoding: ParameterEncoding (E.g: JSONEncoding.default)
headers: [String: String]
Updated for Swift 3:
let requestString = "https://thawing-inlet-46474.herokuapp.com/charge.php"
let params = ["stripeToken": token.tokenId, "amount": "200", "currency": "usd", "description": "testRun"]
Alamofire.request(requestString,method: .post, parameters: params, encoding: JSONEncoding.default, headers: [:]).responseJSON { (response:DataResponse<Any>) in
switch(response.result) {
case .success(_):
if response.result.value != nil{
print("response : \(response.result.value)")
}
break
case .failure(_):
print("Failure : \(response.result.error)")
break
}
}
Make sure your parameters is [String: Any]
i.e
let parameters = ["foo": "bar"]
Not:
let parameters : Parameter = ["foo": "bar"]
You are getting that error because of the wrong data types.
Parameters Type should be [String : Any] and parameters type shouldn't be an optional.
Header Type should be [String : String] or nil and header type shouldn't be an optional as well.
Hope it helps. :-)
I fixed this by ensuring my requestUrls are strings, and not URL types. Also I removed parameter arguments for when parameter was nil.
E.g.
Alamofire.request(requestUrl, method: .get, encoding: URLEncoding.default)
Almofire methods changed in Swift 3 as the following:
Reorder parameters (url then method type).
Change Encoding Enum to be "JSONEncoding.default" for example.
This is a family of functions that are very similar, which makes the compiler think you're trying to use a different function. Double check that ALL of the arguments you're supplying are the CORRECT TYPE that is expected. For example I was passing [String:Any] for the variant with headers, which expected [String:String] and got the same error.
It is always because im using optional variables in any of the parameters
I was facing same problem And try with all answer as previously post here, And then I got the solution and reason of this problem .
This is happened due to pass the wrong object parse in the request, and finally the solution --
theJSONText -- JSON string
urlStr -- URL string
let urlEncoadedJson = theJSONText.addingPercentEncoding(withAllowedCharacters:.urlHostAllowed)
let urls = NSURL(string:"urlStr\(urlEncoadedJson ?? "")")
let method: HTTPMethod = .get
Alamofire.request(urls! as URL, method: method, parameters: nil, encoding: JSONEncoding.default, headers: nil).responseJSON { (response:DataResponse<Any>) in
switch(response.result) {
case .success(_):
if response.result.value != nil
{
// write your code here
}
break
case .failure(_):
if response.result.error != nil
{
print(response.result.error!)
}
break
}
}
Note - There is no param in my URL .
My problem was in optional parameters in the headers that were not unwrapped.
Alamofire.request(url, method: .post, parameters: parameters, encoding:
JSONEncoding.default, headers: [:]).responseJSON
{ response in
switch (response.result) {
case .success:
print(response)
break
case .failure:
print(Error.self)
}
}
just make sure all the parameters are in the correct format , most importantly the parameters must be in [String:Any] type array.
In OS X Finder there is 'Comment' file property. It can be checked in finder by adding 'Comment' column or edited/checked after right clicking on file or folder and selecting 'Get info'.
How to read this value in swift or objective-c?
I checked already NSURL and none of them seems to be the right ones
Do not use the low-level extended attributes API to read Spotlight metadata. There's a proper Spotlight API for that. (It's called the File Metadata API.) Not only is it a pain in the neck, there's no guarantee that Apple will keep using the same extended attribute to store this information.
Use MDItemCreateWithURL() to create an MDItem for the file. Use MDItemCopyAttribute() with kMDItemFinderComment to obtain the Finder comment for the item.
Putting the pieces together (Ken Thomases reading answer above and writing answer link) you can extend URL with a computed property with a getter and a setter to read/write comments to your files:
update: Xcode 8.2.1 • Swift 3.0.2
extension URL {
var finderComment: String? {
get {
guard isFileURL else { return nil }
return MDItemCopyAttribute(MDItemCreateWithURL(kCFAllocatorDefault, self as CFURL), kMDItemFinderComment) as? String
}
set {
guard isFileURL, let newValue = newValue else { return }
let script = "tell application \"Finder\"\n" +
String(format: "set filePath to \"%#\" as posix file \n", absoluteString) +
String(format: "set comment of (filePath as alias) to \"%#\" \n", newValue) +
"end tell"
guard let appleScript = NSAppleScript(source: script) else { return }
var error: NSDictionary?
appleScript.executeAndReturnError(&error)
if let error = error {
print(error[NSAppleScript.errorAppName] as! String)
print(error[NSAppleScript.errorBriefMessage] as! String)
print(error[NSAppleScript.errorMessage] as! String)
print(error[NSAppleScript.errorNumber] as! NSNumber)
print(error[NSAppleScript.errorRange] as! NSRange)
}
}
}
}
As explained in the various answers to Mac OS X : add a custom meta data field to any file,
Finder comments can be read and set programmatically with getxattr() and setxattr(). They are stored as extended attribute
"com.apple.metadata:kMDItemFinderComment", and the value is a property
list.
This works even for files not indexed by Spotlight, such as those on a network server volume.
From the Objective-C code here
and here I made this simple Swift function
to read the Finder comment (now updated for Swift 4 and later):
func finderComment(url : URL) -> String? {
let XAFinderComment = "com.apple.metadata:kMDItemFinderComment"
let data = url.withUnsafeFileSystemRepresentation { fileSystemPath -> Data? in
// Determine attribute size:
let length = getxattr(fileSystemPath, XAFinderComment, nil, 0, 0, 0)
guard length >= 0 else { return nil }
// Create buffer with required size:
var data = Data(count: length)
// Retrieve attribute:
let result = data.withUnsafeMutableBytes { [count = data.count] in
getxattr(fileSystemPath, XAFinderComment, $0.baseAddress, count, 0, 0)
}
guard result >= 0 else { return nil }
return data
}
// Deserialize to String:
guard let data = data, let comment = try? PropertyListSerialization.propertyList(from: data,
options: [], format: nil) as? String else {
return nil
}
return comment
}
Example usage:
let url = URL(fileURLWithPath: "/path/to/file")
if let comment = finderComment(url: url) {
print(comment)
}
The function returns an optional string which is nil if the file
has no Finder comment, or if anything went wrong while retrieving it.
I am trying the following API using Alamofire, but this API has multiple "to" fields. I tried to pass an array of "to" emails as parameters. It shows no error but did not send to all emails. API is correct, I tested that from terminal. Any suggestions will be cordially welcomed.
http -a email:pass -f POST 'sampleUrl' from="email#email.com" to="ongkur.cse#gmail.com" to="emailgmail#email.com" subject="test_sub" bodyText="testing hello"
I am giving my code:
class func sendMessage(message:MessageModel, delegate:RestAPIManagerDelegate?) {
let urlString = "http://localhost:8080/app/user/messages"
var parameters = [String:AnyObject]()
parameters = [
"from": message.messageFrom.emailAddress
]
var array = [String]()
for to in message.messageTO {
array.append(to)
}
parameters["to"] = array
for cc in message.messageCC {
parameters["cc"] = cc.emailAddress;
}
for bcc in message.messageBCC {
parameters["bcc"] = bcc.emailAddress;
}
parameters["subject"] = message.messageSubject;
parameters["bodyText"] = message.bodyText;
Alamofire.request(.POST, urlString, parameters: parameters)
.authenticate(user: MessageManager.sharedInstance().primaryUserName, password: MessageManager.sharedInstance().primaryPassword)
.validate(statusCode: 200..<201)
.validate(contentType: ["application/json"])
.responseJSON {
(_, _, jsonData, error) in
if(error != nil) {
println("\n sendMessage attempt json response:")
println(error!)
delegate?.messageSent?(false)
return
}
println("Server response during message sending:\n")
let swiftyJSONData = JSON(jsonData!)
println(swiftyJSONData)
delegate?.messageSent?(true)
}
}
First of all if you created the API yourself you should consider changing the API to expect an array of 'to' receivers instead of multiple times the same parameter name.
As back2dos states it in this answer: https://stackoverflow.com/a/1898078/672989
Although POST may be having multiple values for the same key, I'd be cautious using it, since some servers can't even properly handle that, which is probably why this isn't supported ... if you convert "duplicate" parameters to a list, the whole thing might start to choke, if a parameter comes in only once, and suddendly you wind up having a string or something ...
And I think he's right.
In this case I guess this is not possible with Alamofire, just as it is not possible with AFNetworking: https://github.com/AFNetworking/AFNetworking/issues/21
Alamofire probably store's its POST parameter in a Dictionary which doesn't allow duplicate keys.
I am trying to incorporate the BTC-e.com API in to a google docs spreadsheet.
The API documentation is here: https://btc-e.com/api/documentation
The method name is sent via POST parameter method.
As the URLFetchApp requires me to set the type of request as POST by a parameter method and I then have another parameter called method to be set as getInfo.
How can I go about setting the fetch method as POST and have the API parameter method as getInfo.
Below is the function this relates too. Also I am sure there a more issues in my work I am yet to find.
function inventory() {
var nonce=Number(SpreadsheetApp.getActiveSheet().getRange('K2').getValue());
var token=SpreadsheetApp.getActiveSheet().getRange('K1').getValue();
var tokenEndpoint = "https://btc-e.com/tapi";
var sign= 'TEMP'
var head = {
'Content-Type': 'application/x-www-form-urlencoded',
'Key': token,
'Sign': sign
}
var params = {
method : "POST",
method : "getInfo",
headers: head,
contentType: 'application/x-www-form-urlencoded',
method : "getInfo",
nonce: nonce
}
var request = UrlFetchApp.getRequest(tokenEndpoint, params);
var response = UrlFetchApp.fetch(tokenEndpoint, params);
var response2=String(response);
SpreadsheetApp.getActiveSheet().getRange('K2').setValue(nonce+1);
SpreadsheetApp.getActiveSheet().getRange('I16').setValue(response2);
SpreadsheetApp.getActiveSheet().getRange('I17').setValue(nonce);
}
This just yields the error
Attribute provided with invalid value: method
Thanks,
Steve
PS: First time posting, I tried to get the format correct.
I made the following Google JavaScript function to do POST access to BTC-e. You can find this function in action in the example spreadsheet I made to demonstrate the BTC-e API functions.
function btceHttpPost(keyPair, method, params, nonce) {
if (keyPair === undefined) {
return "{'error':'missing key pair'}"
}
if (params === undefined) {
params = '';
}
// Cleanup keypair, remove all \s (any whitespace)
var keyPair = keyPair.replace(/[\s]/g, '');
// Keypair example: "AFE730YV-S9A4FXBJ-NQ12HXS9-CA3S3MPM-CKQLU0PG,96a00f086824ddfddd9085a5c32b8a7b225657ae2fe9c4483b4c109fab6bf1a7"
keyPair = keyPair.split(',');
var pubKey = keyPair[0];
var privKey = keyPair[1];
// As specified on the BTC-e api (https://btc-e.com/api/documentation) the
// nonce POST parameter must be an incrementing integer (>0). The easiest
// implementation is the use of a timestamp (TS), so there is no need
// for persistant storage. Preferable, the resolution of the TS should be
// small enough the handle the desired call-frequency (a sleep of the TS
// resolution can fix this but I don't like such a waste). Another
// consideration is the sizeof the nonce supported by BTC-e. Experiments
// revealed this is a 32 bit unsigned number. The native JavaScript TS,
// stored in a float, can be 53 bits and has a resolution of 1 ms.
if (nonce === undefined)
// This time stamp counts amount of 200ms ticks starting from Jan 1st, 2014 UTC
// On 22 Mar 2041 01:17:39 UTC, it will overflow the 32 bits and will fail
// the nonce key for BTC-e
var nonce = Math.floor((Date.now() - Date.UTC(2014,0)) / 200);
// Construct payload message
var msg = 'nonce=' + nonce + '&method=' + method + params;
var msgSign = Utilities.computeHmacSignature(Utilities.MacAlgorithm.HMAC_SHA_512, msg, privKey);
// Convert encoded message from byte[] to hex string
for (var msgSignHex = [], i = 0; i < msgSign.length; i++) {
// Doing it nibble by nibble makes sure we keep leading zero's
msgSignHex.push(((msgSign[i] >>> 4) & 0xF).toString(16));
msgSignHex.push((msgSign[i] & 0xF).toString(16));
}
msgSignHex = msgSignHex.join('');
var httpHeaders = {'Key': pubKey, 'Sign': msgSignHex};
var fetchOptions = {'method': 'post', 'headers': httpHeaders, 'payload': msg};
var reponse = UrlFetchApp.fetch('https://btc-e.com/tapi', fetchOptions);
return reponse.getContentText();
};
The problem looks to be with your params object . You have method set thrice in the same object, which is a source of confusion.
Next, take a look at the documentation for UrlFetchApp.fetch() ( https://developers.google.com/apps-script/reference/url-fetch/url-fetch-app#fetch(String,Object) ) . The method can take a value of post, get, delete, put.
The getInfo should probably be appended to your URL to make it
var tokenEndpoint = "https://btc-e.com/tapi/getInfo"
Per the docs, you also have to put in more parameters to the request, nonce, api key etc. Use this as a starting point, revisit the documentation and get back to SO if you still have trouble