rest

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Published: Apr 9, 2022 License: AGPL-3.0 Imports: 24 Imported by: 2

README

Flow Access Node REST API Server

This package and subpackages implement the REST API Server for the Flow OpenAPI definition

Packages:

rest: The HTTP handlers for all the request, server generator and the select filter.

middleware: The common middlewares that all request pass through.

generate: The generated models from https://app.swaggerhub.com/ (note: only the generated models are included and not the api implementation since that part us custom)

Request lifecycle

  1. Every incoming request passes through a common set of middlewares - logging middleware, query expandable and query select middleware defined in the middleware package.
  2. A request is then sent to the handler.ServeHTTP function.
  3. The handler.ServeHTTP function calls the appropriate ApiHandlerFunc handler function as defined in server.go e.g. getBlocksByIDs in blocks.go for a get blocks by IDs request or getBlocksByHeight for a get blocks by heights request etc.
  4. Within the handler function, the request is first validated, then the necessary database lookups are performed and finally the appropriate response function is called. e.g. blockResponse for Block response.
  5. After the response is generated, the select filter is applied if a select query param has been specified.
  6. The Response is then sent to the client

Documentation

Index

Constants

View Source
const (
	ExpandableFieldPayload    = "payload"
	ExpandableExecutionResult = "execution_result"
)
View Source
const MaxRequestSize = 2 << 20 // 2MB

Variables

View Source
var Routes = []route{{
	Method:  http.MethodGet,
	Pattern: "/transactions/{id}",
	Name:    "getTransactionByID",
	Handler: GetTransactionByID,
}, {
	Method:  http.MethodPost,
	Pattern: "/transactions",
	Name:    "createTransaction",
	Handler: CreateTransaction,
}, {
	Method:  http.MethodGet,
	Pattern: "/transaction_results/{id}",
	Name:    "getTransactionResultByID",
	Handler: GetTransactionResultByID,
}, {
	Method:  http.MethodGet,
	Pattern: "/blocks/{id}",
	Name:    "getBlocksByIDs",
	Handler: GetBlocksByIDs,
}, {
	Method:  http.MethodGet,
	Pattern: "/blocks",
	Name:    "getBlocksByHeight",
	Handler: GetBlocksByHeight,
}, {
	Method:  http.MethodGet,
	Pattern: "/blocks/{id}/payload",
	Name:    "getBlockPayloadByID",
	Handler: GetBlockPayloadByID,
}, {
	Method:  http.MethodGet,
	Pattern: "/execution_results/{id}",
	Name:    "getExecutionResultByID",
	Handler: GetExecutionResultByID,
}, {
	Method:  http.MethodGet,
	Pattern: "/execution_results",
	Name:    "getExecutionResultByBlockID",
	Handler: GetExecutionResultsByBlockIDs,
}, {
	Method:  http.MethodGet,
	Pattern: "/collections/{id}",
	Name:    "getCollectionByID",
	Handler: GetCollectionByID,
}, {
	Method:  http.MethodPost,
	Pattern: "/scripts",
	Name:    "executeScript",
	Handler: ExecuteScript,
}, {
	Method:  http.MethodGet,
	Pattern: "/accounts/{address}",
	Name:    "getAccount",
	Handler: GetAccount,
}, {
	Method:  http.MethodGet,
	Pattern: "/events",
	Name:    "getEvents",
	Handler: GetEvents,
}}

Functions

func CreateTransaction added in v0.23.9

func CreateTransaction(r *request.Request, backend access.API, link models.LinkGenerator) (interface{}, error)

CreateTransaction creates a new transaction from provided payload.

func ExecuteScript added in v0.23.9

func ExecuteScript(r *request.Request, backend access.API, _ models.LinkGenerator) (interface{}, error)

ExecuteScript handler sends the script from the request to be executed.

func GetAccount added in v0.23.9

func GetAccount(r *request.Request, backend access.API, link models.LinkGenerator) (interface{}, error)

GetAccount handler retrieves account by address and returns the response

func GetBlockPayloadByID added in v0.23.9

func GetBlockPayloadByID(r *request.Request, backend access.API, _ models.LinkGenerator) (interface{}, error)

GetBlockPayloadByID gets block payload by ID

func GetBlocksByHeight added in v0.23.9

func GetBlocksByHeight(r *request.Request, backend access.API, link models.LinkGenerator) (interface{}, error)

func GetBlocksByIDs added in v0.23.9

func GetBlocksByIDs(r *request.Request, backend access.API, link models.LinkGenerator) (interface{}, error)

GetBlocksByIDs gets blocks by provided ID or list of IDs.

func GetCollectionByID added in v0.23.9

func GetCollectionByID(r *request.Request, backend access.API, link models.LinkGenerator) (interface{}, error)

GetCollectionByID retrieves a collection by ID and builds a response

func GetEvents added in v0.23.9

func GetEvents(r *request.Request, backend access.API, _ models.LinkGenerator) (interface{}, error)

GetEvents for the provided block range or list of block IDs filtered by type.

func GetExecutionResultByID added in v0.23.9

func GetExecutionResultByID(r *request.Request, backend access.API, link models.LinkGenerator) (interface{}, error)

GetExecutionResultByID gets execution result by the ID.

func GetExecutionResultsByBlockIDs added in v0.23.9

func GetExecutionResultsByBlockIDs(r *request.Request, backend access.API, link models.LinkGenerator) (interface{}, error)

GetExecutionResultsByBlockIDs gets Execution Result payload by block IDs.

func GetTransactionByID added in v0.23.9

func GetTransactionByID(r *request.Request, backend access.API, link models.LinkGenerator) (interface{}, error)

GetTransactionByID gets a transaction by requested ID.

func GetTransactionResultByID added in v0.23.9

func GetTransactionResultByID(r *request.Request, backend access.API, link models.LinkGenerator) (interface{}, error)

GetTransactionResultByID retrieves transaction result by the transaction ID.

func NewBlockProvider added in v0.23.5

func NewBlockProvider(backend access.API, options ...blockProviderOption) *blockProvider

func NewServer

func NewServer(backend access.API, listenAddress string, logger zerolog.Logger, chain flow.Chain) (*http.Server, error)

NewServer returns an HTTP server initialized with the REST API handler

Types

type ApiHandlerFunc added in v0.23.5

type ApiHandlerFunc func(
	r *request.Request,
	backend access.API,
	generator models.LinkGenerator,
) (interface{}, error)

ApiHandlerFunc is a function that contains endpoint handling logic, it fetches necessary resources and returns an error or response model.

type Error added in v0.23.9

type Error struct {
	// contains filtered or unexported fields
}

Error is implementation of status error.

func NewBadRequestError added in v0.23.5

func NewBadRequestError(err error) *Error

NewBadRequestError creates a new bad request rest error.

func NewNotFoundError added in v0.23.5

func NewNotFoundError(msg string, err error) *Error

NewNotFoundError creates a new not found rest error.

func NewRestError added in v0.23.5

func NewRestError(status int, msg string, err error) *Error

NewRestError creates an error returned to user with provided status user displayed message and internal error

func (*Error) Error added in v0.23.9

func (e *Error) Error() string

func (*Error) Status added in v0.23.9

func (e *Error) Status() int

Status returns error http status code.

func (*Error) UserMessage added in v0.23.9

func (e *Error) UserMessage() string

type Handler added in v0.23.5

type Handler struct {
	// contains filtered or unexported fields
}

Handler is custom http handler implementing custom handler function. Handler function allows easier handling of errors and responses as it wraps functionality for handling error and responses outside of endpoint handling.

func NewHandler added in v0.23.5

func NewHandler(
	logger zerolog.Logger,
	backend access.API,
	handlerFunc ApiHandlerFunc,
	generator models.LinkGenerator,
	chain flow.Chain,
) *Handler

func (*Handler) ServeHTTP added in v0.23.5

func (h *Handler) ServeHTTP(w http.ResponseWriter, r *http.Request)

ServerHTTP function acts as a wrapper to each request providing common handling functionality such as logging, error handling, request decorators

type StatusError added in v0.23.5

type StatusError interface {
	error                // this is the actual error that occured
	Status() int         // the HTTP status code to return
	UserMessage() string // the error message to return to the client
}

StatusError provides custom error with http status.

Directories

Path Synopsis
* Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git)
* Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git) * Access API * * No description provided (generated by Swagger Codegen https://github.com/swagger-api/swagger-codegen) * * API version: 1.0.0 * Generated by: Swagger Codegen (https://github.com/swagger-api/swagger-codegen.git)

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