c++ fast websocket + json parser


I need a low latency implementation (preferably header only) class that i can import in my existing project directly.

This class has to be able to connect to a websocket server that is streaming a lot of data, authenticate*, subscribe, receive and parse it as fast as possible. The data sent is in json, (sometimes html if errors appear).

Server: wss://[login to view URL]

after connection subscribe like that: {"op": "subscribe", "args": ["orderBookL2:XBTUSD"]}

for more details: [login to view URL]

Ideal would be a custom solution written from scratch that uses raw sockets but could accept implementations that use uWebsockets, pjson, rapidjson libs if you explain why that would be faster. Essentially i need to get the data, parse it fast and address it easily in my existing program.

Skills: C++ Programming, C Programming

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About the Employer:
( 4 reviews ) Gherla, Romania

Project ID: #20929015

Awarded to:


Hi, I'm experienced C/C++ developer with a special knowledge of socket communication. So I can help you with this task. Kind regards, Mostafa

$250 USD in 10 days
(19 Reviews)

10 freelancers are bidding on average $158 for this job


hello,how are you. i read your bid carefully. i am c/c++, json expert and have full experience for 10 years. c/c++, json is my top skill. i can provide most quality and high speed. if you want to success, please contac More

$140 USD in 7 days
(10 Reviews)

hello I am c++ programmer who have good knowledge web socket. I have rich experience of web socket programming. My past work is for [login to view URL], [login to view URL], subscribe management server api and so on. Please contact w More

$200 USD in 3 days
(14 Reviews)

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$140 USD in 7 days
(4 Reviews)

I have experience of program development with about 15 years. i used to develop program very quickly. if you hire me, you will be very happy.

$140 USD in 1 day
(5 Reviews)

How are you,sir? Thank you for visiting my proposal. I've just read your job post carefully and much interested in your project and I am sure I can complete this in time perfectly as you want. My principle is to solve More

$130 USD in 7 days
(3 Reviews)

Dear sir I have a lot of experiences in c/c++. I'm an expert in c/c++, its data structure, windows app. I'm sure i can make result for you in a short time within 1 day. Thanks, sir Waiting for your reply.

$50 USD in 1 day
(3 Reviews)

[login to view URL] an experienced developer, I am very interested in the job. Especially I have a talent in C and C++. Now I am ready to work for you. Please contact me for further discuss. Best regards.

$130 USD in 2 days
(0 Reviews)

I am a member of Software Engineers (Programmers) having 5+ years of experience. Expert in JAVA, C, C++ , C# , Python andTCP/IP The bid is negotiable and we can talk about the price.

$200 USD in 2 days
(0 Reviews)

Dear client I saw your requirements regarding to develop and resolve the issues for connecting BitMEX exchange websocket API. I developed many applications is similar to your requirements. Such as an Indicator Chart More

$200 USD in 1 day
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