api: new endpoint /chain/blocks

accepts QueryParams:
     * GET /chain/blocks
       * page
       * limit
       * chainId
       * hash
       * proposerAddress

* api: add structs BlockList, BlockParams
* api: add consts ParamChainId, ParamHash, ParamProposerAddress
* api: rename chainBlockHandler -> chainBlockByHeightHandler

api/api.go

@@ -60,22 +60,25 @@ const (
 //
 //nolint:revive
 const (
-	ParamAccountId      = "accountId"
-	ParamCensusId       = "censusId"
-	ParamElectionId     = "electionId"
-	ParamOrganizationId = "organizationId"
-	ParamVoteId         = "voteId"
-	ParamPage           = "page"
-	ParamLimit          = "limit"
-	ParamStatus         = "status"
-	ParamWithResults    = "withResults"
-	ParamFinalResults   = "finalResults"
-	ParamManuallyEnded  = "manuallyEnded"
-	ParamHeight         = "height"
-	ParamReference      = "reference"
-	ParamType           = "type"
-	ParamAccountIdFrom  = "accountIdFrom"
-	ParamAccountIdTo    = "accountIdTo"
+	ParamAccountId       = "accountId"
+	ParamCensusId        = "censusId"
+	ParamElectionId      = "electionId"
+	ParamOrganizationId  = "organizationId"
+	ParamVoteId          = "voteId"
+	ParamPage            = "page"
+	ParamLimit           = "limit"
+	ParamStatus          = "status"
+	ParamWithResults     = "withResults"
+	ParamFinalResults    = "finalResults"
+	ParamManuallyEnded   = "manuallyEnded"
+	ParamHeight          = "height"
+	ParamReference       = "reference"
+	ParamType            = "type"
+	ParamAccountIdFrom   = "accountIdFrom"
+	ParamAccountIdTo     = "accountIdTo"
+	ParamChainId         = "chainId"
+	ParamHash            = "hash"
+	ParamProposerAddress = "proposerAddress"
 )
 
 var (

api/api_types.go

@@ -50,6 +50,14 @@ type TransactionParams struct {
 	Type   string `json:"type,omitempty"`
 }
 
+// BlockParams allows the client to filter blocks
+type BlockParams struct {
+	PaginationParams
+	ChainID         string `json:"chainId,omitempty"`
+	Hash            string `json:"hash,omitempty"`
+	ProposerAddress string `json:"proposerAddress,omitempty"`
+}
+
 // FeesParams allows the client to filter fees
 type FeesParams struct {
 	PaginationParams
@@ -436,3 +444,9 @@ type Block struct {
 	Hash             types.HexBytes `json:"hash" `
 	TxCount          int64          `json:"txCount"`
 }
+
+// BlockList is used to return a paginated list to the client
+type BlockList struct {
+	Blocks     []*indexertypes.Block `json:"blocks"`
+	Pagination *Pagination           `json:"pagination"`
+}

api/chain.go

@@ -164,7 +164,7 @@ func (a *API) enableChainHandlers() error {
 		"/chain/blocks/{height}",
 		"GET",
 		apirest.MethodAccessTypePublic,
-		a.chainBlockHandler,
+		a.chainBlockByHeightHandler,
 	); err != nil {
 		return err
 	}
@@ -176,6 +176,14 @@ func (a *API) enableChainHandlers() error {
 	); err != nil {
 		return err
 	}
+	if err := a.Endpoint.RegisterMethod(
+		"/chain/blocks",
+		"GET",
+		apirest.MethodAccessTypePublic,
+		a.chainBlockListHandler,
+	); err != nil {
+		return err
+	}
 	if err := a.Endpoint.RegisterMethod(
 		"/chain/organizations/filter/page/{page}",
 		"POST",
@@ -846,7 +854,7 @@ func (a *API) chainValidatorsHandler(_ *apirest.APIdata, ctx *httprouter.HTTPCon
 	return ctx.Send(data, apirest.HTTPstatusOK)
 }
 
-// chainBlockHandler
+// chainBlockByHeightHandler
 //
 //	@Summary		Get block (by height)
 //	@Description	Returns the full block information at the given height
@@ -856,7 +864,7 @@ func (a *API) chainValidatorsHandler(_ *apirest.APIdata, ctx *httprouter.HTTPCon
 //	@Param			height	path		int	true	"Block height"
 //	@Success		200		{object}	api.Block
 //	@Router			/chain/blocks/{height} [get]
-func (a *API) chainBlockHandler(_ *apirest.APIdata, ctx *httprouter.HTTPContext) error {
+func (a *API) chainBlockByHeightHandler(_ *apirest.APIdata, ctx *httprouter.HTTPContext) error {
 	height, err := strconv.ParseUint(ctx.URLParam(ParamHeight), 10, 64)
 	if err != nil {
 		return err
@@ -942,6 +950,63 @@ func (a *API) chainBlockByHashHandler(_ *apirest.APIdata, ctx *httprouter.HTTPCo
 	return ctx.Send(convertKeysToCamel(data), apirest.HTTPstatusOK)
 }
 
+// chainBlockListHandler
+//
+//	@Summary		List all blocks
+//	@Description	Returns the list of blocks, ordered by descending height.
+//	@Tags			Chain
+//	@Accept			json
+//	@Produce		json
+//	@Param			page			query		number	false	"Page"
+//	@Param			limit			query		number	false	"Items per page"
+//	@Param			chainId			query		string	false	"Filter by exact chainId"
+//	@Param			hash			query		string	false	"Filter by partial hash"
+//	@Param			proposerAddress	query		string	false	"Filter by exact proposerAddress"
+//	@Success		200				{object}	BlockList
+//	@Router			/chain/blocks [get]
+func (a *API) chainBlockListHandler(_ *apirest.APIdata, ctx *httprouter.HTTPContext) error {
+	params, err := parseBlockParams(
+		ctx.QueryParam(ParamPage),
+		ctx.QueryParam(ParamLimit),
+		ctx.QueryParam(ParamChainId),
+		ctx.QueryParam(ParamHash),
+		ctx.QueryParam(ParamProposerAddress),
+	)
+	if err != nil {
+		return err
+	}
+
+	return a.sendBlockList(ctx, params)
+}
+
+// sendBlockList produces a filtered, paginated BlockList,
+// and sends it marshalled over ctx.Send
+//
+// Errors returned are always of type APIerror.
+func (a *API) sendBlockList(ctx *httprouter.HTTPContext, params *BlockParams) error {
+	blocks, total, err := a.indexer.BlockList(
+		params.Limit,
+		params.Page*params.Limit,
+		params.ChainID,
+		params.Hash,
+		params.ProposerAddress,
+	)
+	if err != nil {
+		return ErrIndexerQueryFailed.WithErr(err)
+	}
+
+	pagination, err := calculatePagination(params.Page, params.Limit, total)
+	if err != nil {
+		return err
+	}
+
+	list := &BlockList{
+		Blocks:     blocks,
+		Pagination: pagination,
+	}
+	return marshalAndSend(ctx, list)
+}
+
 // chainTransactionCountHandler
 //
 //	@Summary		Transactions count
@@ -1255,3 +1320,18 @@ func parseTransactionParams(paramPage, paramLimit, paramHeight, paramType string
 		Type:             paramType,
 	}, nil
 }
+
+// parseBlockParams returns an BlockParams filled with the passed params
+func parseBlockParams(paramPage, paramLimit, paramChainId, paramHash, paramProposerAddress string) (*BlockParams, error) {
+	pagination, err := parsePaginationParams(paramPage, paramLimit)
+	if err != nil {
+		return nil, err
+	}
+
+	return &BlockParams{
+		PaginationParams: pagination,
+		ChainID:          paramChainId,
+		Hash:             util.TrimHex(paramHash),
+		ProposerAddress:  util.TrimHex(paramProposerAddress),
+	}, nil
+}