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Author	SHA1	Message	Date
Thane Thomson	90465f727f	rpc: add support for batched requests/responses (#3534 ) Continues from #3280 in building support for batched requests/responses in the JSON RPC (as per issue #3213). * Add JSON RPC batching for client and server As per #3213, this adds support for [JSON RPC batch requests and responses](https://www.jsonrpc.org/specification#batch). * Add additional checks to ensure client responses are the same as results * Fix case where a notification is sent and no response is expected * Add test to check that JSON RPC notifications in a batch are left out in responses * Update CHANGELOG_PENDING.md * Update PR number now that PR has been created * Make errors start with lowercase letter * Refactor batch functionality to be standalone This refactors the batching functionality to rather act in a standalone way. In light of supporting concurrent goroutines making use of the same client, it would make sense to have batching functionality where one could create a batch of requests per goroutine and send that batch without interfering with a batch from another goroutine. * Add examples for simple and batch HTTP client usage * Check errors from writer and remove nolinter directives * Make error strings start with lowercase letter * Refactor examples to make them testable * Use safer deferred shutdown for example Tendermint test node * Recompose rpcClient interface from pre-existing interface components * Rename WaitGroup for brevity * Replace empty ID string with request ID * Remove extraneous test case * Convert first letter of errors.Wrap() messages to lowercase * Remove extraneous function parameter * Make variable declaration terse * Reorder WaitGroup.Done call to help prevent race conditions in the face of failure * Swap mutex to value representation and remove initialization * Restore empty JSONRPC string ID in response to prevent nil * Make JSONRPCBufferedRequest private * Revert PR hard link in CHANGELOG_PENDING * Add client ID for JSONRPCClient This adds code to automatically generate a randomized client ID for the JSONRPCClient, and adds a check of the IDs in the responses (if one was set in the requests). * Extract response ID validation into separate function * Remove extraneous comments * Reorder fields to indicate clearly which are protected by the mutex * Refactor for loop to remove indexing * Restructure and combine loop * Flatten conditional block for better readability * Make multi-variable declaration slightly more readable * Change for loop style * Compress error check statements * Make function description more generic to show that we support different protocols * Preallocate memory for request and result objects	6 years ago

Author

SHA1

Message

Date

Thane Thomson

90465f727f

rpc: add support for batched requests/responses (#3534 )

Continues from #3280 in building support for batched requests/responses in the JSON RPC (as per issue #3213).

* Add JSON RPC batching for client and server

As per #3213, this adds support for [JSON RPC batch requests and
responses](https://www.jsonrpc.org/specification#batch).

* Add additional checks to ensure client responses are the same as results

* Fix case where a notification is sent and no response is expected

* Add test to check that JSON RPC notifications in a batch are left out in responses

* Update CHANGELOG_PENDING.md

* Update PR number now that PR has been created

* Make errors start with lowercase letter

* Refactor batch functionality to be standalone

This refactors the batching functionality to rather act in a standalone
way. In light of supporting concurrent goroutines making use of the same
client, it would make sense to have batching functionality where one
could create a batch of requests per goroutine and send that batch
without interfering with a batch from another goroutine.

* Add examples for simple and batch HTTP client usage

* Check errors from writer and remove nolinter directives

* Make error strings start with lowercase letter

* Refactor examples to make them testable

* Use safer deferred shutdown for example Tendermint test node

* Recompose rpcClient interface from pre-existing interface components

* Rename WaitGroup for brevity

* Replace empty ID string with request ID

* Remove extraneous test case

* Convert first letter of errors.Wrap() messages to lowercase

* Remove extraneous function parameter

* Make variable declaration terse

* Reorder WaitGroup.Done call to help prevent race conditions in the face of failure

* Swap mutex to value representation and remove initialization

* Restore empty JSONRPC string ID in response to prevent nil

* Make JSONRPCBufferedRequest private

* Revert PR hard link in CHANGELOG_PENDING

* Add client ID for JSONRPCClient

This adds code to automatically generate a randomized client ID for the
JSONRPCClient, and adds a check of the IDs in the responses (if one was
set in the requests).

* Extract response ID validation into separate function

* Remove extraneous comments

* Reorder fields to indicate clearly which are protected by the mutex

* Refactor for loop to remove indexing

* Restructure and combine loop

* Flatten conditional block for better readability

* Make multi-variable declaration slightly more readable

* Change for loop style

* Compress error check statements

* Make function description more generic to show that we support different protocols

* Preallocate memory for request and result objects

6 years ago

1 Commits (0c6ad4f714a9259619c5d8a066ffb731ab9fe701)