README
¶
Paydex Go
This repo is the home for all of the public go code produced by SDF. In addition to various tools and services, this repository is the SDK from which you may develop your own applications that integrate with the paydex network.
Package Index
- Horizon Server: Full-featured API server for Paydex network
- Go Horizon SDK - horizonclient: Client for Horizon server (queries and transaction submission)
- Go Horizon SDK - txnbuild: Construct Paydex transactions and operations
- Ticker: An API server that provides statistics about assets and markets on the Paydex network
- Keystore: An API server that is used to store and manage encrypted keys for Paydex client applications
- Servers for Anchors & Financial Institutions
- Bridge Server: send payments and take action when payments are received
- Compliance Server: Allows financial institutions to exchange KYC information
- Federation Server: Allows organizations to provide addresses for users (
jane*examplebank.com)
Dependencies
This repository is officially supported on the last two releases of Go, which is currently Go 1.12 and Go 1.13.
It depends on a number of external dependencies, and uses Go Modules to manage them. Running any go command will automatically download dependencies required for that operation.
You can choose to checkout this repository into a GOPATH or into any directory, but if you are using a GOPATH with Go 1.12 or earlier you must set environment variable GO111MODULE=on to enable Modules.
Directory Layout
In addition to the other top-level packages, there are a few special directories that contain specific types of packages:
- clients contains packages that provide client packages to the various Paydex services.
- exp contains experimental packages. Use at your own risk.
- handlers contains packages that provide pluggable implementors of
http.Handlerthat make it easier to incorporate portions of the Paydex protocol into your own http server. - support contains packages that are not intended for consumption outside of Paydex's other packages. Packages that provide common infrastructure for use in our services and tools should go here, such as
dborlog. - support/scripts contains single-file go programs and bash scripts used to support the development of this repo.
- services contains packages that compile to applications that are long-running processes (such as API servers).
- tools contains packages that compile to command line applications.
Each of these directories have their own README file that explain further the nature of their contents.
Other packages
In addition to the packages described above, this repository contains various packages related to working with the Paydex network from a go program. It's recommended that you use godoc to browse the documentation for each.
Package source layout
While much of the code in individual packages is organized based upon different developers' personal preferences, many of the packages follow a simple convention for organizing the declarations inside of a package that aim to aid in your ability to find code.
In each package, there may be one or more of a set of common files:
- errors.go: This file should contains declarations (both types and vars) for errors that are used by the package.
- example_test.go: This file should contains example tests, as described at https://blog.golang.org/examples.
- main.go/internal.go (deprecated): Older packages may have a
main.go(public symbols) orinternal.go(private symbols). These files contain, respectively, the exported and unexported vars, consts, types and funcs for the package. New packages do not follow this pattern, and instead follow the standard Go convention to co-locate structs and their methods in the same files. - main.go (new convention): If present, this file contains a
mainfunction as part of an executablemainpackage.
In addition to the above files, a package often has files that contains code that is specific to one declared type. This file uses the snake case form of the type name (for example loggly_hook.go would correspond to the type LogglyHook). This file should contain method declarations, interface implementation assertions and any other declarations that are tied solely to that type.
Each non-test file can have a test counterpart like normal, whose name ends with _test.go. The common files described above also have their own test counterparts... for example internal_test.go should contains tests that test unexported behavior and more commonly test helpers that are unexported.
Generally, file contents are sorted by exported/unexported, then declaration type (ordered as consts, vars, types, then funcs), then finally alphabetically.
Test helpers
Often, we provide test packages that aid in the creation of tests that interact with our other packages. For example, the support/db package has the support/db/dbtest package underneath it that contains elements that make it easier to test code that accesses a SQL database. We've found that this pattern of having a separate test package maximizes flexibility and simplifies package dependencies.
Contributing
Contributions are welcome! See CONTRIBUTING.md for more details.
Developing
See DEVELOPING.md for helpful instructions for getting started developing code in this repository.
Directories
¶
| Path | Synopsis |
|---|---|
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Package address provides utility functions for working with paydex addresses.
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Package address provides utility functions for working with paydex addresses. |
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Package amount provides utilities for converting numbers to/from the format used internally to paydex-core.
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Package amount provides utilities for converting numbers to/from the format used internally to paydex-core. |
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Package build implements a builder system for constructing various xdr structures used by the paydex network, most importantly transactions.
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Package build implements a builder system for constructing various xdr structures used by the paydex network, most importantly transactions. |
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Package clients contains sub-packages that provide client access to the various paydex services.
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Package clients contains sub-packages that provide client access to the various paydex services. |
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horizon
Package horizon is DEPRECATED in favour of clients/horizonclient! It used to provide client access to a horizon server, allowing an application to post transactions and lookup ledger information.
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Package horizon is DEPRECATED in favour of clients/horizonclient! It used to provide client access to a horizon server, allowing an application to post transactions and lookup ledger information. |
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horizonclient
Package horizonclient provides client access to a Horizon server, allowing an application to post transactions and look up ledger information.
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Package horizonclient provides client access to a Horizon server, allowing an application to post transactions and look up ledger information. |
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paydexcore
Package paydexcore is a client library for communicating with an instance of paydex-core using through the server's HTTP port.
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Package paydexcore is a client library for communicating with an instance of paydex-core using through the server's HTTP port. |
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Package crc16 is implementation according to CCITT standards.
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Package crc16 is implementation according to CCITT standards. |
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Package exp houses experimental packages related to Paydex developement
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Package exp houses experimental packages related to Paydex developement |
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crypto/derivation
Package derivation provides functions for ed25519 key derivation as described in: https://github.com/satoshilabs/slips/blob/master/slip-0010.md
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Package derivation provides functions for ed25519 key derivation as described in: https://github.com/satoshilabs/slips/blob/master/slip-0010.md |
|
ingest/processors
processors package contains the most commonly used processors.
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processors package contains the most commonly used processors. |
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ingest/verify
Package verify provides helpers used for verifying if the ingested data is correct.
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Package verify provides helpers used for verifying if the ingested data is correct. |
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support/pipeline
TODO explain here how to write wrappers to use without casting from `interface{}`.
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TODO explain here how to write wrappers to use without casting from `interface{}`. |
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handlers
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federation
Package federation provides a pluggable handler that satisfies the Paydex federation protocol.
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Package federation provides a pluggable handler that satisfies the Paydex federation protocol. |
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Package meta provides helpers for processing the metadata that is produced by paydex-core while processing transactions.
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Package meta provides helpers for processing the metadata that is produced by paydex-core while processing transactions. |
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Package network contains functions that deal with paydex network passphrases and IDs.
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Package network contains functions that deal with paydex network passphrases and IDs. |
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Package price implements functions to ease working with paydex price values.
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Package price implements functions to ease working with paydex price values. |
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protocols
|
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horizon
Package horizon contains the type definitions for all of horizon's response resources.
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Package horizon contains the type definitions for all of horizon's response resources. |
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Package services contains sub-packages that provide long-running applications such as API servers.
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Package services contains sub-packages that provide long-running applications such as API servers. |
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horizon/internal/actions
Package actions provides the infrastructure for defining and executing actions (code that is triggered in response to an client request) on horizon.
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Package actions provides the infrastructure for defining and executing actions (code that is triggered in response to an client request) on horizon. |
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horizon/internal/assets
Package assets is a simple helper package to help convert to/from xdr.AssetType values
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Package assets is a simple helper package to help convert to/from xdr.AssetType values |
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horizon/internal/codes
Package codes is a helper package to help convert to transaction and operation result codes to strings used in horizon.
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Package codes is a helper package to help convert to transaction and operation result codes to strings used in horizon. |
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horizon/internal/db2
Package db2 is the replacement for db.
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Package db2 is the replacement for db. |
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horizon/internal/db2/core
Package core contains database record definitions useable for reading rows from a Paydex Core db
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Package core contains database record definitions useable for reading rows from a Paydex Core db |
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horizon/internal/db2/history
Package history contains database record definitions useable for reading rows from a the history portion of horizon's database
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Package history contains database record definitions useable for reading rows from a the history portion of horizon's database |
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horizon/internal/db2/sqx
Package sqx contains utilities and extensions for the squirrel package which is used by horizon to generate sql statements.
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Package sqx contains utilities and extensions for the squirrel package which is used by horizon to generate sql statements. |
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horizon/internal/expingest
Package expingest contains the new ingestion system for horizon.
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Package expingest contains the new ingestion system for horizon. |
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horizon/internal/hchi
Package hchi provides functions to support embedded and retrieving a request id from a go context tree
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Package hchi provides functions to support embedded and retrieving a request id from a go context tree |
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horizon/internal/ingest
Package ingest contains the ingestion system for horizon.
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Package ingest contains the ingestion system for horizon. |
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horizon/internal/ingest/participants
Package participants contains functions to derive a set of "participant" addresses for various data structures in the Paydex network's ledger.
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Package participants contains functions to derive a set of "participant" addresses for various data structures in the Paydex network's ledger. |
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horizon/internal/ledger
Package ledger provides useful utilities concerning ledgers within paydex, specifically as a central location to store a cached snapshot of the state of both horizon's and paydex-core's views of the ledger.
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Package ledger provides useful utilities concerning ledgers within paydex, specifically as a central location to store a cached snapshot of the state of both horizon's and paydex-core's views of the ledger. |
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horizon/internal/operationfeestats
Package operationfeestats provides useful utilities concerning operation fee stats within paydex,specifically as a central location to store a cached snapshot of the state of network per operation fees and surge pricing.
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Package operationfeestats provides useful utilities concerning operation fee stats within paydex,specifically as a central location to store a cached snapshot of the state of network per operation fees and surge pricing. |
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horizon/internal/paths
Package paths provides utilities and facilities for payment paths as needed by horizon.
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Package paths provides utilities and facilities for payment paths as needed by horizon. |
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horizon/internal/reap
Package reap contains the history reaping subsystem for horizon.
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Package reap contains the history reaping subsystem for horizon. |
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horizon/internal/render/sse
This package contains the Server Sent Events implementation used by horizon.
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This package contains the Server Sent Events implementation used by horizon. |
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horizon/internal/simplepath
Package simplepath provides an implementation of paths.
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Package simplepath provides an implementation of paths. |
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horizon/internal/test
Package test contains simple test helpers that should not have any dependencies on horizon's packages.
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Package test contains simple test helpers that should not have any dependencies on horizon's packages. |
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horizon/internal/test/db
Package db provides helpers to connect to test databases.
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Package db provides helpers to connect to test databases. |
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horizon/internal/test/trades
Common infrastructure for testing Trades
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Common infrastructure for testing Trades |
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horizon/internal/txsub
Package txsub provides the machinery that horizon uses to submit transactions to the paydex network and track their progress.
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Package txsub provides the machinery that horizon uses to submit transactions to the paydex network and track their progress. |
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horizon/internal/txsub/results/db
Package results provides an implementation of the txsub.ResultProvider interface backed using the SQL databases used by both paydex core and horizon
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Package results provides an implementation of the txsub.ResultProvider interface backed using the SQL databases used by both paydex core and horizon |
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horizon/internal/txsub/sequence
Package sequence providers helpers to manage sequence numbers on behalf of horizon clients.
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Package sequence providers helpers to manage sequence numbers on behalf of horizon clients. |
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horizon/internal/utf8
Package utf8 contains utilities for working with utf8 data.
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Package utf8 contains utilities for working with utf8 data. |
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internal/bridge-compliance-shared/protocols
Contains structs shared between bridge and compliance servers
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Contains structs shared between bridge and compliance servers |
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Package strkey is an implementation of StrKey, the address scheme for the PaydexNetwork.
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Package strkey is an implementation of StrKey, the address scheme for the PaydexNetwork. |
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support
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app
Package app provides vars that can be populated via "-X" linker flags to provide global application metadata, such as build time or version.
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Package app provides vars that can be populated via "-X" linker flags to provide global application metadata, such as build time or version. |
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config
Package config provides a common infrastructure for reading configuration data stored in local TOML files.
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Package config provides a common infrastructure for reading configuration data stored in local TOML files. |
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db
Package db is the base package for database access at paydex.
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Package db is the base package for database access at paydex. |
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db/dbtest
Package dbtest is a package to ease the pain of developing test code that works against external databases.
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Package dbtest is a package to ease the pain of developing test code that works against external databases. |
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db/sqlutils
Package sqlutils contains utility functions for manipulating strings of SQL
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Package sqlutils contains utility functions for manipulating strings of SQL |
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errors
Package errors provides the common infrastructure for managing errors.
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Package errors provides the common infrastructure for managing errors. |
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http
Package http provides easy access to Paydex's best practices for building http servers.
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Package http provides easy access to Paydex's best practices for building http servers. |
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http/httptest
Package httptest enhances the stdlib net/http/httptest package by integrating it with gopkg.in/gavv/httpexpect.v1, reducing the boilerplate needed for http tests.
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Package httptest enhances the stdlib net/http/httptest package by integrating it with gopkg.in/gavv/httpexpect.v1, reducing the boilerplate needed for http tests. |
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http/mutil
Package mutil contains various functions that are helpful when writing http middleware.
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Package mutil contains various functions that are helpful when writing http middleware. |
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log
Package log provides the common logging facilities used by the Paydex Development foundation.
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Package log provides the common logging facilities used by the Paydex Development foundation. |
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test
Package test contains simple test helpers that should not have any service-specific dependencies.
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Package test contains simple test helpers that should not have any service-specific dependencies. |
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tools
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paydex-sign
paydex-sign is a small interactive utility to help you contribute a signature to a transaction envelope.
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paydex-sign is a small interactive utility to help you contribute a signature to a transaction envelope. |
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Package txnbuild implements transactions and operations on the Paydex network.
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Package txnbuild implements transactions and operations on the Paydex network. |
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cmd/demo
Demo is an interactive demonstration of the Go SDK using the Paydex TestNet.
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Demo is an interactive demonstration of the Go SDK using the Paydex TestNet. |
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cmd/demo/operations
Package demo is an interactive demonstration of the Go SDK using the Paydex TestNet.
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Package demo is an interactive demonstration of the Go SDK using the Paydex TestNet. |
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examplehorizonclient
Package examplehorizonclient provides a dummy client for use with the GoDoc examples.
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Package examplehorizonclient provides a dummy client for use with the GoDoc examples. |
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Package xdr contains the generated code for parsing the xdr structures used for paydex.
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Package xdr contains the generated code for parsing the xdr structures used for paydex. |
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