HWI | Bitcoin Hardware Wallet Interface | Ecommerce library
kandi X-RAY | HWI Summary
kandi X-RAY | HWI Summary
The Bitcoin Hardware Wallet Interface is a Python library and command line tool for interacting with hardware wallets. It provides a standard way for software to work with hardware wallets without needing to implement device specific drivers. Python software can use the provided library (hwilib). Software in other languages can execute the hwi tool. Caveat emptor: Inclusion of a specific hardware wallet vendor does not imply any endorsement of quality or security.
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Top functions reviewed by kandi - BETA
- Signs a PSBT
- Is a p2pkh script?
- Check if a script is witness
- Checks if the script is a p2tr script
- Sign a PSBT transaction
- Get the Xpub fingerprint of a string
- Is the script a p2sh script?
- Convert b to address
- Generate the address for the given multisig
- Format a multisig address
- Display a wallet address
- Returns the serialized representation of this transaction
- Create a recovery device
- Backup the device
- Get wallet address
- Sign a message
- Load a device
- Get the extended public key
- Execute a GET request
- Display a single script address
- Execute the command
- Set expected responses
- Sign a PSBT
- Display a multisig address
- Create a signed transaction
- Process command line arguments
HWI Key Features
HWI Examples and Code Snippets
Community Discussions
Trending Discussions on HWI
QUESTION
I created a test application to test if SSO (Single sign on) works. I use Auth0 as a SSO provider. Symfony 4.4 as application framework. I used this article from Auth0 to create the basics. So far I can login/logout.
Problem:When I login once (with credentials), logout after and then login again I am instandly logged in with the same account I used before. Without needing to fill in credentials again. It seems to remember the session or somehow does not completely logout a user. I want the user to have to login again with credentials after it logged out. Since some of my users will use one computer for the applications (so switching user is needed).
Possible fix/Extra info:According to there docs/community I should look at this. But this seems to mean that I need API calls to add the ?federated
. Which the setup example does not use (probably the library does it for me). Also my logout function in the SecurityController that is generated by the make:auth
(or make:user
) doesn't execute the code anymore. Even if I change the function name it still logged me out. Only untill I remove/change the route name it stops. It's probably very bad but maybe if I had the chance to execute a API call when I logout I could do this API call.
The best thing I could imagine to do is change some settings in symfony or add some small piece of code to make it logout correclty. But I dont know how.
My code:SecurityController.php
...ANSWER
Answered 2021-Aug-26 at 06:58It looks like that you have to logout from the oauth service you are using, here is a similar issue.
Worked out in code:src/Security/CustomLogoutSuccessHandler.php
QUESTION
My app has a search bar where the user types in a word and clicks search. Upon click, the app fetches the definition of that word from an open dictionary API, and then updates the parent component's state to reflect the results. The component is then supposed to render the results by passing that as a prop to a presentational child component.
However, it looks like the state gets set before the fetch call has the time to return the data. So the search results are not rendered until the search button is clicked again, causing confusion.
I have tried resolving this by making my function asynchronous (Dictionary.search refers to an imported function which handles the fetch and returns the result in the form of an array):
...ANSWER
Answered 2021-Aug-05 at 08:07The problem is that your Dictionary.search
function immediately returns, because it does not wait until the .then
block resolves. Change it to an async
function and await
the fetch
of the url
. It should look like this:
QUESTION
I program on a stm32 microcontroller ( c language ), I made an abtraction layer to load different drivers according to the PCB versions. To abstract from the PCB version as much as possible I did this function which return a pointer to a static variable (but I don't know if this is a good practice?)
NB : (HWI) Hardware Interface
My header file (ledstrip_hwi.h):
...ANSWER
Answered 2021-Jul-20 at 15:38To abstract from the PCB version as much as possible I did this function which return a pointer to a static variable (but I don't know if this is a good practice?)
No, it's not good practice. In case of bare-metal MCU programming, then re-entrancy isn't an issue - which would otherwise be a strong argument against code like this. But the main issue is that you are breaking private encapsulation by exposing a read/write variable to the caller. Which contains function pointer members no less. That's a dangerous and brittle interface.
You cast to const
before returning which improves the situation a lot. This is still read/write RAM but the caller shouldn't modify it unless they do something weird like casting away const
. The question is why you didn't make these variables static const
to begin with though? Then they would also end up in flash and not sit in your valuable RAM. It's literally waste of space.
QUESTION
Below is a snippet of my code:
...ANSWER
Answered 2021-Mar-26 at 18:17This is the problem:
QUESTION
I have this json object
...ANSWER
Answered 2021-Feb-09 at 16:30This is a JS object contained in an array, referencing the Array[0] will target the JS object. For example,
QUESTION
I'm using Spring WebClient to make REST requests. I've created POJO's to store the JSON properties but there's a problem. If a word on the API I'm using doesnt exist, It returns an array of words
...ANSWER
Answered 2020-Nov-27 at 08:07Your “normal” response isn’t valid JSON, but that aside, here’s what you can do.
Get the response content as a string with bodyToMono(String.class)
. Then read the response as a JSON tree
QUESTION
I have a list of dictionaries like:
...ANSWER
Answered 2020-Nov-12 at 00:38You can use tuples as dictionary keys in Python:
QUESTION
I am consuming the following API of Merriam Webstar, which is returning the following response,
...ANSWER
Answered 2020-Oct-23 at 00:35I believe your goal as follows.
- You want to retrieve the value of
Mom usually acts as {it}umpire{/it} in our frequent squabbles over the sailboat.
fromdef[0].sseq[0][0][1].dt[1][1][0].t
.
Unfortunately, I couldn't find the method for directly retrieving the value you expect using ImportJson. So in this answer, I would like to propose 2 patterns of scripts for retrieving the value using Google Apps Script.
Pattern 1:In this pattern, a recursive function is used for retrieving the value. When you use this script, please put =SAMPLE1(CONCATENATE("https://dictionaryapi.com/api/v3/references/ithesaurus/json/"&$A4&"?key="))
to a cell.
QUESTION
I'm toying with a small program that can pass a list of words to the Merriam-Webster API, and gets returned the definition, part of speech, sample sentence and so on.
The JSON string returned for each word by the API is as follows:
...ANSWER
Answered 2020-Aug-25 at 16:50First, your JSON example is broken, I believe it is missing a [
in the beginning.
Now, Here is an example, where I load the contents of the file, json_decode
your SINGLE example. Note that I am not adding a foreach loop
or while loop
, but I am getting all of the attributes you are aiming for:
QUESTION
I'm trying to pass props using the handleUpdate function in my child component to my top level component and update the state with those props values. So far, I don't see the props appearing when I console log. I don't think I'm passing the correct arguments. I've tinkered around and am stuck. Can someone assist and explain their reasoning?
handleUpdate function in child component:
...ANSWER
Answered 2020-Jul-17 at 06:47If I can decipher your partial snippets, it seems handleUpdate
in App
is access the wrong "props" object, i.e. this.props
of App
instead of the passed props
argument to the function.
Change the function parameter to something other than "props" to remove confusion, word
is a great choice that allows you to also use object shorthand assignment.
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